/* ====================================================================
 * Copyright (c) 2001-2014 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 *
 */



#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_AES
#include <openssl/evp.h>
#include <openssl/err.h>
#include <string.h>
#include <assert.h>
#include <openssl/aes.h>
#include "evp_locl.h"
#include "modes_lcl.h"
#include <openssl/rand.h>

typedef struct
	{
	union { double align; AES_KEY ks; } ks;
	block128_f block;
	union {
		cbc128_f cbc;
		ctr128_f ctr;
	} stream;
	} EVP_AES_KEY;

typedef struct
	{
	union { double align; AES_KEY ks; } ks;	/* AES key schedule to use */
	int key_set;		/* Set if key initialised */
	int iv_set;		/* Set if an iv is set */
	GCM128_CONTEXT gcm;
	unsigned char *iv;	/* Temporary IV store */
	int ivlen;		/* IV length */
	int taglen;
	int iv_gen;		/* It is OK to generate IVs */
	int tls_aad_len;	/* TLS AAD length */
	ctr128_f ctr;
	} EVP_AES_GCM_CTX;

typedef struct
	{
	union { double align; AES_KEY ks; } ks1, ks2;	/* AES key schedules to use */
	XTS128_CONTEXT xts;
	void     (*stream)(const unsigned char *in,
			unsigned char *out, size_t length,
			const AES_KEY *key1, const AES_KEY *key2,
			const unsigned char iv[16]);
	} EVP_AES_XTS_CTX;

typedef struct
	{
	union { double align; AES_KEY ks; } ks;	/* AES key schedule to use */
	int key_set;		/* Set if key initialised */
	int iv_set;		/* Set if an iv is set */
	int tag_set;		/* Set if tag is valid */
	int len_set;		/* Set if message length set */
	int L, M;		/* L and M parameters from RFC3610 */
	CCM128_CONTEXT ccm;
	ccm128_f str;
	} EVP_AES_CCM_CTX;

#ifndef OPENSSL_NO_OCB
typedef struct
	{
	AES_KEY ksenc;		/* AES key schedule to use for encryption */
	AES_KEY ksdec;		/* AES key schedule to use for decryption */
	int key_set;		/* Set if key initialised */
	int iv_set;		/* Set if an iv is set */
	OCB128_CONTEXT ocb;
	unsigned char *iv;	/* Temporary IV store */
	unsigned char tag[16];
	unsigned char data_buf[16]; /* Store partial data blocks */
	unsigned char aad_buf[16]; /* Store partial AAD blocks */
	int data_buf_len;
	int aad_buf_len;
	int ivlen;		/* IV length */
	int taglen;
	} EVP_AES_OCB_CTX;
#endif

#define MAXBITCHUNK	((size_t)1<<(sizeof(size_t)*8-4))

#ifdef VPAES_ASM
int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
			AES_KEY *key);
int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
			AES_KEY *key);

void vpaes_encrypt(const unsigned char *in, unsigned char *out,
			const AES_KEY *key);
void vpaes_decrypt(const unsigned char *in, unsigned char *out,
			const AES_KEY *key);

void vpaes_cbc_encrypt(const unsigned char *in,
			unsigned char *out,
			size_t length,
			const AES_KEY *key,
			unsigned char *ivec, int enc);
#endif
#ifdef BSAES_ASM
void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
			size_t length, const AES_KEY *key,
			unsigned char ivec[16], int enc);
void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
			size_t len, const AES_KEY *key,
			const unsigned char ivec[16]);
void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
			size_t len, const AES_KEY *key1,
			const AES_KEY *key2, const unsigned char iv[16]);
void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
			size_t len, const AES_KEY *key1,
			const AES_KEY *key2, const unsigned char iv[16]);
#endif
#ifdef AES_CTR_ASM
void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
			size_t blocks, const AES_KEY *key,
			const unsigned char ivec[AES_BLOCK_SIZE]);
#endif
#ifdef AES_XTS_ASM
void AES_xts_encrypt(const char *inp,char *out,size_t len,
			const AES_KEY *key1, const AES_KEY *key2,
			const unsigned char iv[16]);
void AES_xts_decrypt(const char *inp,char *out,size_t len,
			const AES_KEY *key1, const AES_KEY *key2,
			const unsigned char iv[16]);
#endif

#if	defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
# include "ppc_arch.h"
# ifdef VPAES_ASM
#  define VPAES_CAPABLE	(OPENSSL_ppccap_P & PPC_ALTIVEC)
# endif
# define HWAES_CAPABLE	(OPENSSL_ppccap_P & PPC_CRYPTO207)
# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
# define HWAES_encrypt aes_p8_encrypt
# define HWAES_decrypt aes_p8_decrypt
# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
#endif

#if	defined(AES_ASM) && !defined(I386_ONLY) &&	(  \
	((defined(__i386)	|| defined(__i386__)	|| \
	  defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
	defined(__x86_64)	|| defined(__x86_64__)	|| \
	defined(_M_AMD64)	|| defined(_M_X64)	|| \
	defined(__INTEL__)				)

extern unsigned int OPENSSL_ia32cap_P[];

#ifdef VPAES_ASM
#define VPAES_CAPABLE	(OPENSSL_ia32cap_P[1]&(1<<(41-32)))
#endif
#ifdef BSAES_ASM
#define BSAES_CAPABLE	(OPENSSL_ia32cap_P[1]&(1<<(41-32)))
#endif
/*
 * AES-NI section
 */
#define	AESNI_CAPABLE	(OPENSSL_ia32cap_P[1]&(1<<(57-32)))

int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
			AES_KEY *key);
int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
			AES_KEY *key);

void aesni_encrypt(const unsigned char *in, unsigned char *out,
			const AES_KEY *key);
void aesni_decrypt(const unsigned char *in, unsigned char *out,
			const AES_KEY *key);

void aesni_ecb_encrypt(const unsigned char *in,
			unsigned char *out,
			size_t length,
			const AES_KEY *key,
			int enc);
void aesni_cbc_encrypt(const unsigned char *in,
			unsigned char *out,
			size_t length,
			const AES_KEY *key,
			unsigned char *ivec, int enc);

void aesni_ctr32_encrypt_blocks(const unsigned char *in,
			unsigned char *out,
			size_t blocks,
			const void *key,
			const unsigned char *ivec);

void aesni_xts_encrypt(const unsigned char *in,
			unsigned char *out,
			size_t length,
			const AES_KEY *key1, const AES_KEY *key2,
			const unsigned char iv[16]);

void aesni_xts_decrypt(const unsigned char *in,
			unsigned char *out,
			size_t length,
			const AES_KEY *key1, const AES_KEY *key2,
			const unsigned char iv[16]);

void aesni_ccm64_encrypt_blocks (const unsigned char *in,
			unsigned char *out,
			size_t blocks,
			const void *key,
			const unsigned char ivec[16],
			unsigned char cmac[16]);

void aesni_ccm64_decrypt_blocks (const unsigned char *in,
			unsigned char *out,
			size_t blocks,
			const void *key,
			const unsigned char ivec[16],
			unsigned char cmac[16]);

#if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
size_t aesni_gcm_encrypt(const unsigned char *in,
			unsigned char *out,
			size_t len,
			const void *key,
			unsigned char ivec[16],
			u64 *Xi);
#define AES_gcm_encrypt	aesni_gcm_encrypt
size_t aesni_gcm_decrypt(const unsigned char *in,
			unsigned char *out,
			size_t len,
			const void *key,
			unsigned char ivec[16],
			u64 *Xi);
#define AES_gcm_decrypt	aesni_gcm_decrypt
void gcm_ghash_avx(u64 Xi[2],const u128 Htable[16],const u8 *in,size_t len);
#define AES_GCM_ASM(gctx)	(gctx->ctr==aesni_ctr32_encrypt_blocks && \
				 gctx->gcm.ghash==gcm_ghash_avx)
#define AES_GCM_ASM2(gctx)	(gctx->gcm.block==(block128_f)aesni_encrypt && \
				 gctx->gcm.ghash==gcm_ghash_avx)
#undef AES_GCM_ASM2		/* minor size optimization */
#endif

static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
		   const unsigned char *iv, int enc)
	{
	int ret, mode;
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	mode = ctx->cipher->flags & EVP_CIPH_MODE;
	if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
	    && !enc)
		{ 
		ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
		dat->block	= (block128_f)aesni_decrypt;
		dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
					(cbc128_f)aesni_cbc_encrypt :
					NULL;
		}
	else	{
		ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data);
		dat->block	= (block128_f)aesni_encrypt;
		if (mode==EVP_CIPH_CBC_MODE)
			dat->stream.cbc	= (cbc128_f)aesni_cbc_encrypt;
		else if (mode==EVP_CIPH_CTR_MODE)
			dat->stream.ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
		else
			dat->stream.cbc = NULL;
		}

	if(ret < 0)
		{
		EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
		return 0;
		}

	return 1;
	}

static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len)
{
	aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);

	return 1;
}

static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len)
{
	size_t	bl = ctx->cipher->block_size;

	if (len<bl)	return 1;

	aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt);

	return 1;
}

#define aesni_ofb_cipher aes_ofb_cipher
static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aesni_cfb_cipher aes_cfb_cipher
static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aesni_cfb8_cipher aes_cfb8_cipher
static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aesni_cfb1_cipher aes_cfb1_cipher
static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aesni_ctr_cipher aes_ctr_cipher
static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
		CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
				(block128_f)aesni_encrypt);
		gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
		/* If we have an iv can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && gctx->iv_set)
			iv = gctx->iv;
		if (iv)
			{
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
			gctx->iv_set = 1;
			}
		gctx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (gctx->key_set)
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
		else
			memcpy(gctx->iv, iv, gctx->ivlen);
		gctx->iv_set = 1;
		gctx->iv_gen = 0;
		}
	return 1;
	}

#define aesni_gcm_cipher aes_gcm_cipher
static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;

	if (key)
		{
		/* key_len is two AES keys */
		if (enc)
			{
			aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)aesni_encrypt;
			xctx->stream = aesni_xts_encrypt;
			}
		else
			{
			aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)aesni_decrypt;
			xctx->stream = aesni_xts_decrypt;
			}

		aesni_set_encrypt_key(key + ctx->key_len/2,
						ctx->key_len * 4, &xctx->ks2.ks);
		xctx->xts.block2 = (block128_f)aesni_encrypt;

		xctx->xts.key1 = &xctx->ks1;
		}

	if (iv)
		{
		xctx->xts.key2 = &xctx->ks2;
		memcpy(ctx->iv, iv, 16);
		}

	return 1;
	}

#define aesni_xts_cipher aes_xts_cipher
static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
		CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
					&cctx->ks, (block128_f)aesni_encrypt);
		cctx->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks :
				(ccm128_f)aesni_ccm64_decrypt_blocks;
		cctx->key_set = 1;
		}
	if (iv)
		{
		memcpy(ctx->iv, iv, 15 - cctx->L);
		cctx->iv_set = 1;
		}
	return 1;
	}

#define aesni_ccm_cipher aes_ccm_cipher
static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

#ifndef OPENSSL_NO_OCB
static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_OCB_CTX *octx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		do
			{
			/* We set both the encrypt and decrypt key here because decrypt
			 * needs both. We could possibly optimise to remove setting the
			 * decrypt for an encryption operation.
			 */
			aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
			aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
			if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
					(block128_f)aesni_encrypt, (block128_f)aesni_decrypt))
				return 0;
			}
		while (0);

		/* If we have an iv we can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && octx->iv_set)
			iv = octx->iv;
		if (iv)
			{
			if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
				return 0;
			octx->iv_set = 1;
			}
		octx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (octx->key_set)
			CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
		else
			memcpy(octx->iv, iv, octx->ivlen);
		octx->iv_set = 1;
		}
	return 1;
	}

#define aesni_ocb_cipher aes_ocb_cipher
static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);
#endif /* OPENSSL_NO_OCB */

#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aesni_##keylen##_##mode = { \
	nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aesni_init_key,			\
	aesni_##mode##_cipher,		\
	NULL,				\
	sizeof(EVP_AES_KEY),		\
	NULL,NULL,NULL,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##nmode,blocksize,	\
	keylen/8,ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_init_key,			\
	aes_##mode##_cipher,		\
	NULL,				\
	sizeof(EVP_AES_KEY),		\
	NULL,NULL,NULL,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }

#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
static const EVP_CIPHER aesni_##keylen##_##mode = { \
	nid##_##keylen##_##mode,blocksize, \
	(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aesni_##mode##_init_key,	\
	aesni_##mode##_cipher,		\
	aes_##mode##_cleanup,		\
	sizeof(EVP_AES_##MODE##_CTX),	\
	NULL,NULL,aes_##mode##_ctrl,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##mode,blocksize, \
	(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_##mode##_init_key,		\
	aes_##mode##_cipher,		\
	aes_##mode##_cleanup,		\
	sizeof(EVP_AES_##MODE##_CTX),	\
	NULL,NULL,aes_##mode##_ctrl,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }

#elif	defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))

#include "sparc_arch.h"

extern unsigned int OPENSSL_sparcv9cap_P[];

#define	SPARC_AES_CAPABLE	(OPENSSL_sparcv9cap_P[1] & CFR_AES)

void	aes_t4_set_encrypt_key (const unsigned char *key, int bits,
				AES_KEY *ks);
void	aes_t4_set_decrypt_key (const unsigned char *key, int bits,
				AES_KEY *ks);
void	aes_t4_encrypt (const unsigned char *in, unsigned char *out,
				const AES_KEY *key);
void	aes_t4_decrypt (const unsigned char *in, unsigned char *out,
				const AES_KEY *key);
/*
 * Key-length specific subroutines were chosen for following reason.
 * Each SPARC T4 core can execute up to 8 threads which share core's
 * resources. Loading as much key material to registers allows to
 * minimize references to shared memory interface, as well as amount
 * of instructions in inner loops [much needed on T4]. But then having
 * non-key-length specific routines would require conditional branches
 * either in inner loops or on subroutines' entries. Former is hardly
 * acceptable, while latter means code size increase to size occupied
 * by multiple key-length specfic subroutines, so why fight?
 */
void	aes128_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes128_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes192_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes192_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes256_t4_cbc_encrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes256_t4_cbc_decrypt (const unsigned char *in, unsigned char *out,
				size_t len, const AES_KEY *key,
				unsigned char *ivec);
void	aes128_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key,
				unsigned char *ivec);
void	aes192_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key,
				unsigned char *ivec);
void	aes256_t4_ctr32_encrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key,
				unsigned char *ivec);
void	aes128_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key1,
				const AES_KEY *key2, const unsigned char *ivec);
void	aes128_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key1,
				const AES_KEY *key2, const unsigned char *ivec);
void	aes256_t4_xts_encrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key1,
				const AES_KEY *key2, const unsigned char *ivec);
void	aes256_t4_xts_decrypt (const unsigned char *in, unsigned char *out,
				size_t blocks, const AES_KEY *key1,
				const AES_KEY *key2, const unsigned char *ivec);

static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
		   const unsigned char *iv, int enc)
	{
	int ret, mode, bits;
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	mode = ctx->cipher->flags & EVP_CIPH_MODE;
	bits = ctx->key_len*8;
	if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
	    && !enc)
		{
		    ret = 0;
		    aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
		    dat->block	= (block128_f)aes_t4_decrypt;
		    switch (bits) {
		    case 128:
			dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
						(cbc128_f)aes128_t4_cbc_decrypt :
						NULL;
			break;
		    case 192:
			dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
						(cbc128_f)aes192_t4_cbc_decrypt :
						NULL;
			break;
		    case 256:
			dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
						(cbc128_f)aes256_t4_cbc_decrypt :
						NULL;
			break;
		    default:
			ret = -1;
		    }
		}
	else	{
		    ret = 0;
		    aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
		    dat->block	= (block128_f)aes_t4_encrypt;
		    switch (bits) {
		    case 128:
			if (mode==EVP_CIPH_CBC_MODE)
				dat->stream.cbc	= (cbc128_f)aes128_t4_cbc_encrypt;
			else if (mode==EVP_CIPH_CTR_MODE)
				dat->stream.ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
			else
				dat->stream.cbc = NULL;
			break;
		    case 192:
			if (mode==EVP_CIPH_CBC_MODE)
				dat->stream.cbc	= (cbc128_f)aes192_t4_cbc_encrypt;
			else if (mode==EVP_CIPH_CTR_MODE)
				dat->stream.ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
			else
				dat->stream.cbc = NULL;
			break;
		    case 256:
			if (mode==EVP_CIPH_CBC_MODE)
				dat->stream.cbc	= (cbc128_f)aes256_t4_cbc_encrypt;
			else if (mode==EVP_CIPH_CTR_MODE)
				dat->stream.ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
			else
				dat->stream.cbc = NULL;
			break;
		    default:
			ret = -1;
		    }
		}

	if(ret < 0)
		{
		EVPerr(EVP_F_AES_T4_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
		return 0;
		}

	return 1;
	}

#define aes_t4_cbc_cipher aes_cbc_cipher
static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len);

#define aes_t4_ecb_cipher aes_ecb_cipher 
static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len);

#define aes_t4_ofb_cipher aes_ofb_cipher
static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aes_t4_cfb_cipher aes_cfb_cipher
static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aes_t4_cfb8_cipher aes_cfb8_cipher
static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aes_t4_cfb1_cipher aes_cfb1_cipher
static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len);

#define aes_t4_ctr_cipher aes_ctr_cipher
static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		int bits = ctx->key_len * 8;
		aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
		CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
				(block128_f)aes_t4_encrypt);
		switch (bits) {
		    case 128:
			gctx->ctr = (ctr128_f)aes128_t4_ctr32_encrypt;
			break;
		    case 192:
			gctx->ctr = (ctr128_f)aes192_t4_ctr32_encrypt;
			break;
		    case 256:
			gctx->ctr = (ctr128_f)aes256_t4_ctr32_encrypt;
			break;
		    default:
			return 0;
		}
		/* If we have an iv can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && gctx->iv_set)
			iv = gctx->iv;
		if (iv)
			{
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
			gctx->iv_set = 1;
			}
		gctx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (gctx->key_set)
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
		else
			memcpy(gctx->iv, iv, gctx->ivlen);
		gctx->iv_set = 1;
		gctx->iv_gen = 0;
		}
	return 1;
	}

#define aes_t4_gcm_cipher aes_gcm_cipher
static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;

	if (key)
		{
		int bits = ctx->key_len * 4;
		xctx->stream = NULL;
		/* key_len is two AES keys */
		if (enc)
			{
			aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)aes_t4_encrypt;
			switch (bits) {
			    case 128:
				xctx->stream = aes128_t4_xts_encrypt;
				break;
#if 0 /* not yet */
			    case 192:
				xctx->stream = aes192_t4_xts_encrypt;
				break;
#endif
			    case 256:
				xctx->stream = aes256_t4_xts_encrypt;
				break;
			    default:
				return 0;
			    }
			}
		else
			{
			aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)aes_t4_decrypt;
			switch (bits) {
			    case 128:
				xctx->stream = aes128_t4_xts_decrypt;
				break;
#if 0 /* not yet */
			    case 192:
				xctx->stream = aes192_t4_xts_decrypt;
				break;
#endif
			    case 256:
				xctx->stream = aes256_t4_xts_decrypt;
				break;
			    default:
				return 0;
			    }
			}

		aes_t4_set_encrypt_key(key + ctx->key_len/2,
						ctx->key_len * 4, &xctx->ks2.ks);
		xctx->xts.block2 = (block128_f)aes_t4_encrypt;

		xctx->xts.key1 = &xctx->ks1;
		}

	if (iv)
		{
		xctx->xts.key2 = &xctx->ks2;
		memcpy(ctx->iv, iv, 16);
		}

	return 1;
	}

#define aes_t4_xts_cipher aes_xts_cipher
static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		int bits = ctx->key_len * 8;
		aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
		CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
					&cctx->ks, (block128_f)aes_t4_encrypt);
#if 0 /* not yet */
		switch (bits) {
		    case 128:
			cctx->str = enc?(ccm128_f)aes128_t4_ccm64_encrypt :
				(ccm128_f)ae128_t4_ccm64_decrypt;
			break;
		    case 192:
			cctx->str = enc?(ccm128_f)aes192_t4_ccm64_encrypt :
				(ccm128_f)ae192_t4_ccm64_decrypt;
			break;
		    case 256:
			cctx->str = enc?(ccm128_f)aes256_t4_ccm64_encrypt :
				(ccm128_f)ae256_t4_ccm64_decrypt;
			break;
		    default:
			return 0;
		    }
#endif
		cctx->key_set = 1;
		}
	if (iv)
		{
		memcpy(ctx->iv, iv, 15 - cctx->L);
		cctx->iv_set = 1;
		}
	return 1;
	}

#define aes_t4_ccm_cipher aes_ccm_cipher
static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);

#ifndef OPENSSL_NO_OCB
static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_OCB_CTX *octx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		do
			{
			/* We set both the encrypt and decrypt key here because decrypt
			 * needs both. We could possibly optimise to remove setting the
			 * decrypt for an encryption operation.
			 */
			aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
			aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
			if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
					(block128_f)aes_t4_encrypt, (block128_f)aes_t4_decrypt))
				return 0;
			}
		while (0);

		/* If we have an iv we can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && octx->iv_set)
			iv = octx->iv;
		if (iv)
			{
			if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
				return 0;
			octx->iv_set = 1;
			}
		octx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (octx->key_set)
			CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
		else
			memcpy(octx->iv, iv, octx->ivlen);
		octx->iv_set = 1;
		}
	return 1;
	}

#define aes_t4_ocb_cipher aes_ocb_cipher
static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len);
#endif /* OPENSSL_NO_OCB */

#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
	nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_t4_init_key,		\
	aes_t4_##mode##_cipher,		\
	NULL,				\
	sizeof(EVP_AES_KEY),		\
	NULL,NULL,NULL,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##nmode,blocksize,	\
	keylen/8,ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_init_key,			\
	aes_##mode##_cipher,		\
	NULL,				\
	sizeof(EVP_AES_KEY),		\
	NULL,NULL,NULL,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }

#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
	nid##_##keylen##_##mode,blocksize, \
	(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_t4_##mode##_init_key,	\
	aes_t4_##mode##_cipher,		\
	aes_##mode##_cleanup,		\
	sizeof(EVP_AES_##MODE##_CTX),	\
	NULL,NULL,aes_##mode##_ctrl,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##mode,blocksize, \
	(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_##mode##_init_key,		\
	aes_##mode##_cipher,		\
	aes_##mode##_cleanup,		\
	sizeof(EVP_AES_##MODE##_CTX),	\
	NULL,NULL,aes_##mode##_ctrl,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }

#else

#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_init_key,			\
	aes_##mode##_cipher,		\
	NULL,				\
	sizeof(EVP_AES_KEY),		\
	NULL,NULL,NULL,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return &aes_##keylen##_##mode; }

#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
static const EVP_CIPHER aes_##keylen##_##mode = { \
	nid##_##keylen##_##mode,blocksize, \
	(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
	flags|EVP_CIPH_##MODE##_MODE,	\
	aes_##mode##_init_key,		\
	aes_##mode##_cipher,		\
	aes_##mode##_cleanup,		\
	sizeof(EVP_AES_##MODE##_CTX),	\
	NULL,NULL,aes_##mode##_ctrl,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return &aes_##keylen##_##mode; }

#endif

#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
#include "arm_arch.h"
#if __ARM_ARCH__>=7
# if defined(BSAES_ASM)
#  define BSAES_CAPABLE	(OPENSSL_armcap_P & ARMV7_NEON)
# endif
# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
# define HWAES_encrypt aes_v8_encrypt
# define HWAES_decrypt aes_v8_decrypt
# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
#endif
#endif

#if defined(HWAES_CAPABLE)
int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
	AES_KEY *key);
int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
	AES_KEY *key);
void HWAES_encrypt(const unsigned char *in, unsigned char *out,
	const AES_KEY *key);
void HWAES_decrypt(const unsigned char *in, unsigned char *out,
	const AES_KEY *key);
void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
	size_t length, const AES_KEY *key,
	unsigned char *ivec, const int enc);
void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
	size_t len, const AES_KEY *key, const unsigned char ivec[16]);
#endif

#define BLOCK_CIPHER_generic_pack(nid,keylen,flags)		\
	BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
	BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
	BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
	BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
	BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags)	\
	BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags)	\
	BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)

static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
		   const unsigned char *iv, int enc)
	{
	int ret, mode;
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	mode = ctx->cipher->flags & EVP_CIPH_MODE;
	if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
	    && !enc)
#ifdef HWAES_CAPABLE
	    if (HWAES_CAPABLE)
		{
		ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block      = (block128_f)HWAES_decrypt;
		dat->stream.cbc = NULL;
#ifdef HWAES_cbc_encrypt
		if (mode==EVP_CIPH_CBC_MODE)
		    dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
#endif
		}
	    else
#endif
#ifdef BSAES_CAPABLE
	    if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
		{
		ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)AES_decrypt;
		dat->stream.cbc	= (cbc128_f)bsaes_cbc_encrypt;
		}
	    else
#endif
#ifdef VPAES_CAPABLE
	    if (VPAES_CAPABLE)
		{
		ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)vpaes_decrypt;
		dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
					(cbc128_f)vpaes_cbc_encrypt :
					NULL;
		}
	    else
#endif
		{
		ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)AES_decrypt;
		dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
					(cbc128_f)AES_cbc_encrypt :
					NULL;
		}
	else
#ifdef HWAES_CAPABLE
	    if (HWAES_CAPABLE)
		{
		ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block      = (block128_f)HWAES_encrypt;
		dat->stream.cbc = NULL;
#ifdef HWAES_cbc_encrypt
		if (mode==EVP_CIPH_CBC_MODE)
		    dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
		else
#endif
#ifdef HWAES_ctr32_encrypt_blocks
		if (mode==EVP_CIPH_CTR_MODE)
		    dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
		else
#endif
		(void)0;	/* terminate potentially open 'else' */
		}
	    else
#endif
#ifdef BSAES_CAPABLE
	    if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
		{
		ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)AES_encrypt;
		dat->stream.ctr	= (ctr128_f)bsaes_ctr32_encrypt_blocks;
		}
	    else
#endif
#ifdef VPAES_CAPABLE
	    if (VPAES_CAPABLE)
		{
		ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)vpaes_encrypt;
		dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
					(cbc128_f)vpaes_cbc_encrypt :
					NULL;
		}
	    else
#endif
		{
		ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
		dat->block	= (block128_f)AES_encrypt;
		dat->stream.cbc	= mode==EVP_CIPH_CBC_MODE ?
					(cbc128_f)AES_cbc_encrypt :
					NULL;
#ifdef AES_CTR_ASM
		if (mode==EVP_CIPH_CTR_MODE)
			dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt;
#endif
		}

	if(ret < 0)
		{
		EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
		return 0;
		}

	return 1;
	}

static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len)
{
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	if (dat->stream.cbc)
		(*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt);
	else if (ctx->encrypt)
		CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
	else
		CRYPTO_cbc128_decrypt(in,out,len,&dat->ks,ctx->iv,dat->block);

	return 1;
}

static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in, size_t len)
{
	size_t	bl = ctx->cipher->block_size;
	size_t	i;
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	if (len<bl)	return 1;

	for (i=0,len-=bl;i<=len;i+=bl)
		(*dat->block)(in+i,out+i,&dat->ks);

	return 1;
}

static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len)
{
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	CRYPTO_ofb128_encrypt(in,out,len,&dat->ks,
			ctx->iv,&ctx->num,dat->block);
	return 1;
}

static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len)
{
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	CRYPTO_cfb128_encrypt(in,out,len,&dat->ks,
			ctx->iv,&ctx->num,ctx->encrypt,dat->block);
	return 1;
}

static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len)
{
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks,
			ctx->iv,&ctx->num,ctx->encrypt,dat->block);
	return 1;
}

static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
	const unsigned char *in,size_t len)
{
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
		CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks,
			ctx->iv,&ctx->num,ctx->encrypt,dat->block);
		return 1;
	}

	while (len>=MAXBITCHUNK) {
		CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks,
			ctx->iv,&ctx->num,ctx->encrypt,dat->block);
		len-=MAXBITCHUNK;
	}
	if (len)
		CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks,
			ctx->iv,&ctx->num,ctx->encrypt,dat->block);
	
	return 1;
}

static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
{
	unsigned int num = ctx->num;
	EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;

	if (dat->stream.ctr)
		CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks,
			ctx->iv,ctx->buf,&num,dat->stream.ctr);
	else
		CRYPTO_ctr128_encrypt(in,out,len,&dat->ks,
			ctx->iv,ctx->buf,&num,dat->block);
	ctx->num = (size_t)num;
	return 1;
}

BLOCK_CIPHER_generic_pack(NID_aes,128,0)
BLOCK_CIPHER_generic_pack(NID_aes,192,0)
BLOCK_CIPHER_generic_pack(NID_aes,256,0)

static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
	{
	EVP_AES_GCM_CTX *gctx = c->cipher_data;
	OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
	if (gctx->iv != c->iv)
		OPENSSL_free(gctx->iv);
	return 1;
	}

/* increment counter (64-bit int) by 1 */
static void ctr64_inc(unsigned char *counter) {
	int n=8;
	unsigned char  c;

	do {
		--n;
		c = counter[n];
		++c;
		counter[n] = c;
		if (c) return;
	} while (n);
}

static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
	{
	EVP_AES_GCM_CTX *gctx = c->cipher_data;
	switch (type)
		{
	case EVP_CTRL_INIT:
		gctx->key_set = 0;
		gctx->iv_set = 0;
		gctx->ivlen = c->cipher->iv_len;
		gctx->iv = c->iv;
		gctx->taglen = -1;
		gctx->iv_gen = 0;
		gctx->tls_aad_len = -1;
		return 1;

	case EVP_CTRL_GCM_SET_IVLEN:
		if (arg <= 0)
			return 0;
		/* Allocate memory for IV if needed */
		if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen))
			{
			if (gctx->iv != c->iv)
				OPENSSL_free(gctx->iv);
			gctx->iv = OPENSSL_malloc(arg);
			if (!gctx->iv)
				return 0;
			}
		gctx->ivlen = arg;
		return 1;

	case EVP_CTRL_GCM_SET_TAG:
		if (arg <= 0 || arg > 16 || c->encrypt)
			return 0;
		memcpy(c->buf, ptr, arg);
		gctx->taglen = arg;
		return 1;

	case EVP_CTRL_GCM_GET_TAG:
		if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
			return 0;
		memcpy(ptr, c->buf, arg);
		return 1;

	case EVP_CTRL_GCM_SET_IV_FIXED:
		/* Special case: -1 length restores whole IV */
		if (arg == -1)
			{
			memcpy(gctx->iv, ptr, gctx->ivlen);
			gctx->iv_gen = 1;
			return 1;
			}
		/* Fixed field must be at least 4 bytes and invocation field
		 * at least 8.
		 */
		if ((arg < 4) || (gctx->ivlen - arg) < 8)
			return 0;
		if (arg)
			memcpy(gctx->iv, ptr, arg);
		if (c->encrypt &&
			RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
			return 0;
		gctx->iv_gen = 1;
		return 1;

	case EVP_CTRL_GCM_IV_GEN:
		if (gctx->iv_gen == 0 || gctx->key_set == 0)
			return 0;
		CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
		if (arg <= 0 || arg > gctx->ivlen)
			arg = gctx->ivlen;
		memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
		/* Invocation field will be at least 8 bytes in size and
		 * so no need to check wrap around or increment more than
		 * last 8 bytes.
		 */
		ctr64_inc(gctx->iv + gctx->ivlen - 8);
		gctx->iv_set = 1;
		return 1;

	case EVP_CTRL_GCM_SET_IV_INV:
		if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
			return 0;
		memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
		CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
		gctx->iv_set = 1;
		return 1;

	case EVP_CTRL_AEAD_TLS1_AAD:
		/* Save the AAD for later use */
		if (arg != 13)
			return 0;
		memcpy(c->buf, ptr, arg);
		gctx->tls_aad_len = arg;
			{
			unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
			/* Correct length for explicit IV */
			len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
			/* If decrypting correct for tag too */
			if (!c->encrypt)
				len -= EVP_GCM_TLS_TAG_LEN;
                        c->buf[arg-2] = len>>8;
                        c->buf[arg-1] = len & 0xff;
			}
		/* Extra padding: tag appended to record */
		return EVP_GCM_TLS_TAG_LEN;

	case EVP_CTRL_COPY:
		{
			EVP_CIPHER_CTX *out = ptr;
			EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
			if (gctx->gcm.key)
				{
				if (gctx->gcm.key != &gctx->ks)
					return 0;
				gctx_out->gcm.key = &gctx_out->ks;
				}
			if (gctx->iv == c->iv)
				gctx_out->iv = out->iv;
			else
			{
				gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
				if (!gctx_out->iv)
					return 0;
				memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
			}
			return 1;
		}

	default:
		return -1;

		}
	}

static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{ do {
#ifdef HWAES_CAPABLE
		if (HWAES_CAPABLE)
			{
			HWAES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
			CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
					(block128_f)HWAES_encrypt);
#ifdef HWAES_ctr32_encrypt_blocks
			gctx->ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
#else
			gctx->ctr = NULL;
#endif
			break;
			}
		else
#endif
#ifdef BSAES_CAPABLE
		if (BSAES_CAPABLE)
			{
			AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
			CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
					(block128_f)AES_encrypt);
			gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
			break;
			}
		else
#endif
#ifdef VPAES_CAPABLE
		if (VPAES_CAPABLE)
			{
			vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks);
			CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks,
					(block128_f)vpaes_encrypt);
			gctx->ctr = NULL;
			break;
			}
		else
#endif
		(void)0;	/* terminate potentially open 'else' */

		AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
		CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
#ifdef AES_CTR_ASM
		gctx->ctr = (ctr128_f)AES_ctr32_encrypt;
#else
		gctx->ctr = NULL;
#endif
		} while (0);

		/* If we have an iv can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && gctx->iv_set)
			iv = gctx->iv;
		if (iv)
			{
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
			gctx->iv_set = 1;
			}
		gctx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (gctx->key_set)
			CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
		else
			memcpy(gctx->iv, iv, gctx->ivlen);
		gctx->iv_set = 1;
		gctx->iv_gen = 0;
		}
	return 1;
	}

/* Handle TLS GCM packet format. This consists of the last portion of the IV
 * followed by the payload and finally the tag. On encrypt generate IV,
 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
 * and verify tag.
 */

static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
	int rv = -1;
	/* Encrypt/decrypt must be performed in place */
	if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN))
		return -1;
	/* Set IV from start of buffer or generate IV and write to start
	 * of buffer.
	 */
	if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
				EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
				EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
		goto err;
	/* Use saved AAD */
	if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
		goto err;
	/* Fix buffer and length to point to payload */
	in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
	out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
	len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
	if (ctx->encrypt)
		{
		/* Encrypt payload */
		if (gctx->ctr)
			{
			size_t bulk=0;
#if defined(AES_GCM_ASM)
			if (len>=32 && AES_GCM_ASM(gctx))
				{
				if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
					return -1;

				bulk = AES_gcm_encrypt(in,out,len,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
				gctx->gcm.len.u[1] += bulk;
				}
#endif
			if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk,
							gctx->ctr))
				goto err;
			}
		else	{
			size_t bulk=0;
#if defined(AES_GCM_ASM2)
			if (len>=32 && AES_GCM_ASM2(gctx))
				{
				if (CRYPTO_gcm128_encrypt(&gctx->gcm,NULL,NULL,0))
					return -1;

				bulk = AES_gcm_encrypt(in,out,len,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
				gctx->gcm.len.u[1] += bulk;
				}
#endif
			if (CRYPTO_gcm128_encrypt(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk))
				goto err;
			}
		out += len;
		/* Finally write tag */
		CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
		rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
		}
	else
		{
		/* Decrypt */
		if (gctx->ctr)
			{
			size_t bulk=0;
#if defined(AES_GCM_ASM)
			if (len>=16 && AES_GCM_ASM(gctx))
				{
				if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
					return -1;

				bulk = AES_gcm_decrypt(in,out,len,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
				gctx->gcm.len.u[1] += bulk;
				}
#endif
			if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk,
							gctx->ctr))
				goto err;
			}
		else	{
			size_t bulk=0;
#if defined(AES_GCM_ASM2)
			if (len>=16 && AES_GCM_ASM2(gctx))
				{
				if (CRYPTO_gcm128_decrypt(&gctx->gcm,NULL,NULL,0))
					return -1;

				bulk = AES_gcm_decrypt(in,out,len,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
				gctx->gcm.len.u[1] += bulk;
				}
#endif
			if (CRYPTO_gcm128_decrypt(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk))
				goto err;
			}
		/* Retrieve tag */
		CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
					EVP_GCM_TLS_TAG_LEN);
		/* If tag mismatch wipe buffer */
		if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
			{
			OPENSSL_cleanse(out, len);
			goto err;
			}
		rv = len;
		}

	err:
	gctx->iv_set = 0;
	gctx->tls_aad_len = -1;
	return rv;
	}

static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
	/* If not set up, return error */
	if (!gctx->key_set)
		return -1;

	if (gctx->tls_aad_len >= 0)
		return aes_gcm_tls_cipher(ctx, out, in, len);

	if (!gctx->iv_set)
		return -1;
	if (in)
		{
		if (out == NULL)
			{
			if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
				return -1;
			}
		else if (ctx->encrypt)
			{
			if (gctx->ctr)
				{
				size_t bulk=0;
#if defined(AES_GCM_ASM)
				if (len>=32 && AES_GCM_ASM(gctx))
					{
					size_t res = (16-gctx->gcm.mres)%16;

					if (CRYPTO_gcm128_encrypt(&gctx->gcm,
							in,out,res))
						return -1;

					bulk = AES_gcm_encrypt(in+res,
							out+res,len-res,								gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
					gctx->gcm.len.u[1] += bulk;
					bulk += res;
					}
#endif
				if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk,
							gctx->ctr))
					return -1;
				}
			else	{
				size_t bulk=0;
#if defined(AES_GCM_ASM2)
				if (len>=32 && AES_GCM_ASM2(gctx))
					{
					size_t res = (16-gctx->gcm.mres)%16;

					if (CRYPTO_gcm128_encrypt(&gctx->gcm,
							in,out,res))
						return -1;

					bulk = AES_gcm_encrypt(in+res,
							out+res,len-res,								gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
					gctx->gcm.len.u[1] += bulk;
					bulk += res;
					}
#endif
				if (CRYPTO_gcm128_encrypt(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk))
					return -1;
				}
			}
		else
			{
			if (gctx->ctr)
				{
				size_t bulk=0;
#if defined(AES_GCM_ASM)
				if (len>=16 && AES_GCM_ASM(gctx))
					{
					size_t res = (16-gctx->gcm.mres)%16;

					if (CRYPTO_gcm128_decrypt(&gctx->gcm,
							in,out,res))
						return -1;

					bulk = AES_gcm_decrypt(in+res,
							out+res,len-res,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
					gctx->gcm.len.u[1] += bulk;
					bulk += res;
					}
#endif
				if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk,
							gctx->ctr))
					return -1;
				}
			else	{
				size_t bulk=0;
#if defined(AES_GCM_ASM2)
				if (len>=16 && AES_GCM_ASM2(gctx))
					{
					size_t res = (16-gctx->gcm.mres)%16;

					if (CRYPTO_gcm128_decrypt(&gctx->gcm,
							in,out,res))
						return -1;

					bulk = AES_gcm_decrypt(in+res,
							out+res,len-res,
							gctx->gcm.key,
							gctx->gcm.Yi.c,
							gctx->gcm.Xi.u);
					gctx->gcm.len.u[1] += bulk;
					bulk += res;
					}
#endif
				if (CRYPTO_gcm128_decrypt(&gctx->gcm,
							in +bulk,
							out+bulk,
							len-bulk))
					return -1;
				}
			}
		return len;
		}
	else
		{
		if (!ctx->encrypt)
			{
			if (gctx->taglen < 0)
				return -1;
			if (CRYPTO_gcm128_finish(&gctx->gcm,
					ctx->buf, gctx->taglen) != 0)
				return -1;
			gctx->iv_set = 0;
			return 0;
			}
		CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
		gctx->taglen = 16;
		/* Don't reuse the IV */
		gctx->iv_set = 0;
		return 0;
		}

	}

#define CUSTOM_FLAGS	(EVP_CIPH_FLAG_DEFAULT_ASN1 \
		| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
		| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
		| EVP_CIPH_CUSTOM_COPY)

BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
		EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
		EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
		EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)

static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
	{
	EVP_AES_XTS_CTX *xctx = c->cipher_data;
	if (type == EVP_CTRL_COPY)
		{
		EVP_CIPHER_CTX *out = ptr;
		EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
		if (xctx->xts.key1)
			{
			if (xctx->xts.key1 != &xctx->ks1)
				return 0;
			xctx_out->xts.key1 = &xctx_out->ks1;
			}
		if (xctx->xts.key2)
			{
			if (xctx->xts.key2 != &xctx->ks2)
				return 0;
			xctx_out->xts.key2 = &xctx_out->ks2;
			}
		return 1;
		}
	else if (type != EVP_CTRL_INIT)
		return -1;
	/* key1 and key2 are used as an indicator both key and IV are set */
	xctx->xts.key1 = NULL;
	xctx->xts.key2 = NULL;
	return 1;
	}

static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;

	if (key) do
		{
#ifdef AES_XTS_ASM
		xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
#else
		xctx->stream = NULL;
#endif
		/* key_len is two AES keys */
#ifdef HWAES_CAPABLE
		if (HWAES_CAPABLE)
			{
			if (enc)
			    {
			    HWAES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			    xctx->xts.block1 = (block128_f)HWAES_encrypt;
			    }
			else
			    {
			    HWAES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			    xctx->xts.block1 = (block128_f)HWAES_decrypt;
			    }

			HWAES_set_encrypt_key(key + ctx->key_len/2,
						    ctx->key_len * 4, &xctx->ks2.ks);
			xctx->xts.block2 = (block128_f)HWAES_encrypt;

			xctx->xts.key1 = &xctx->ks1;
			break;
			}
		else
#endif
#ifdef BSAES_CAPABLE
		if (BSAES_CAPABLE)
			xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
		else
#endif
#ifdef VPAES_CAPABLE
		if (VPAES_CAPABLE)
		    {
		    if (enc)
			{
			vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)vpaes_encrypt;
			}
		    else
			{
			vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)vpaes_decrypt;
			}

		    vpaes_set_encrypt_key(key + ctx->key_len/2,
						ctx->key_len * 4, &xctx->ks2.ks);
		    xctx->xts.block2 = (block128_f)vpaes_encrypt;

		    xctx->xts.key1 = &xctx->ks1;
		    break;
		    }
		else
#endif
		(void)0;	/* terminate potentially open 'else' */

		if (enc)
			{
			AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)AES_encrypt;
			}
		else
			{
			AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
			xctx->xts.block1 = (block128_f)AES_decrypt;
			}

		AES_set_encrypt_key(key + ctx->key_len/2,
						ctx->key_len * 4, &xctx->ks2.ks);
		xctx->xts.block2 = (block128_f)AES_encrypt;

		xctx->xts.key1 = &xctx->ks1;
		} while (0);

	if (iv)
		{
		xctx->xts.key2 = &xctx->ks2;
		memcpy(ctx->iv, iv, 16);
		}

	return 1;
	}

static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
	if (!xctx->xts.key1 || !xctx->xts.key2)
		return 0;
	if (!out || !in || len<AES_BLOCK_SIZE)
		return 0;
	if (xctx->stream)
		(*xctx->stream)(in, out, len,
				xctx->xts.key1, xctx->xts.key2, ctx->iv);
	else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
								ctx->encrypt))
		return 0;
	return 1;
	}

#define aes_xts_cleanup NULL

#define XTS_FLAGS	(EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
			 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
			 | EVP_CIPH_CUSTOM_COPY)

BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,XTS_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,XTS_FLAGS)

static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
	{
	EVP_AES_CCM_CTX *cctx = c->cipher_data;
	switch (type)
		{
	case EVP_CTRL_INIT:
		cctx->key_set = 0;
		cctx->iv_set = 0;
		cctx->L = 8;
		cctx->M = 12;
		cctx->tag_set = 0;
		cctx->len_set = 0;
		return 1;

	case EVP_CTRL_CCM_SET_IVLEN:
		arg = 15 - arg;
	case EVP_CTRL_CCM_SET_L:
		if (arg < 2 || arg > 8)
			return 0;
		cctx->L = arg;
		return 1;

	case EVP_CTRL_CCM_SET_TAG:
		if ((arg & 1) || arg < 4 || arg > 16)
			return 0;
		if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
			return 0;
		if (ptr)
			{
			cctx->tag_set = 1;
			memcpy(c->buf, ptr, arg);
			}
		cctx->M = arg;
		return 1;

	case EVP_CTRL_CCM_GET_TAG:
		if (!c->encrypt || !cctx->tag_set)
			return 0;
		if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
			return 0;
		cctx->tag_set = 0;
		cctx->iv_set = 0;
		cctx->len_set = 0;
		return 1;

	case EVP_CTRL_COPY:
		{
			EVP_CIPHER_CTX *out = ptr;
			EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
			if (cctx->ccm.key)
				{
				if (cctx->ccm.key != &cctx->ks)
					return 0;
				cctx_out->ccm.key = &cctx_out->ks;
				}
			return 1;
		}

	default:
		return -1;

		}
	}

static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key) do
		{
#ifdef HWAES_CAPABLE
		if (HWAES_CAPABLE)
			{
			HWAES_set_encrypt_key(key,ctx->key_len*8,&cctx->ks.ks);

			CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
					&cctx->ks, (block128_f)HWAES_encrypt);
			cctx->str = NULL;
			cctx->key_set = 1;
			break;
			}
		else
#endif
#ifdef VPAES_CAPABLE
		if (VPAES_CAPABLE)
			{
			vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.ks);
			CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
					&cctx->ks, (block128_f)vpaes_encrypt);
			cctx->str = NULL;
			cctx->key_set = 1;
			break;
			}
#endif
		AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
		CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
					&cctx->ks, (block128_f)AES_encrypt);
		cctx->str = NULL;
		cctx->key_set = 1;
		} while (0);
	if (iv)
		{
		memcpy(ctx->iv, iv, 15 - cctx->L);
		cctx->iv_set = 1;
		}
	return 1;
	}

static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
	CCM128_CONTEXT *ccm = &cctx->ccm;
	/* If not set up, return error */
	if (!cctx->iv_set && !cctx->key_set)
		return -1;
	if (!ctx->encrypt && !cctx->tag_set)
		return -1;
	if (!out)
		{
		if (!in)
			{
			if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
				return -1;
			cctx->len_set = 1;
			return len;
			}
		/* If have AAD need message length */
		if (!cctx->len_set && len)
			return -1;
		CRYPTO_ccm128_aad(ccm, in, len);
		return len;
		}
	/* EVP_*Final() doesn't return any data */
	if (!in)
		return 0;
	/* If not set length yet do it */
	if (!cctx->len_set)
		{
		if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
			return -1;
		cctx->len_set = 1;
		}
	if (ctx->encrypt)
		{
		if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
						cctx->str) :
				CRYPTO_ccm128_encrypt(ccm, in, out, len))
			return -1;
		cctx->tag_set = 1;
		return len;
		}
	else
		{
		int rv = -1;
		if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
						cctx->str) :
				!CRYPTO_ccm128_decrypt(ccm, in, out, len))
			{
			unsigned char tag[16];
			if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
				{
				if (!memcmp(tag, ctx->buf, cctx->M))
					rv = len;
				}
			}
		if (rv == -1)
			OPENSSL_cleanse(out, len);
		cctx->iv_set = 0;
		cctx->tag_set = 0;
		cctx->len_set = 0;
		return rv;
		}

	}

#define aes_ccm_cleanup NULL

BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,CUSTOM_FLAGS)

typedef struct
	{
	union { double align; AES_KEY ks; } ks;
	/* Indicates if IV has been set */
	unsigned char *iv;
	} EVP_AES_WRAP_CTX;

static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                        const unsigned char *iv, int enc)
	{
	EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		if (ctx->encrypt)
			AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
		else
			AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
		if (!iv)
			wctx->iv = NULL;
		}
	if (iv)
		{
		memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
		wctx->iv = ctx->iv;
		}
	return 1;
	}

static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t inlen)
	{
	EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
	size_t rv;
	/* AES wrap with padding has IV length of 4, without padding 8 */
	int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
	/* No final operation so always return zero length */
	if (!in)
		return 0;
	/* Input length must always be non-zero */
	if (!inlen)
		return -1;
	/* If decrypting need at least 16 bytes and multiple of 8 */
	if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
		return -1;
	/* If not padding input must be multiple of 8 */
	if (!pad && inlen & 0x7)
		return -1;
	if (!out)
		{
		if (ctx->encrypt)
			{
			/* If padding round up to multiple of 8 */
			if (pad)
				inlen = (inlen + 7)/8 * 8;
			/* 8 byte prefix */
			return inlen + 8;
			}
		else
			{
			/* If not padding output will be exactly 8 bytes
			 * smaller than input. If padding it will be at
			 * least 8 bytes smaller but we don't know how
			 * much.
			 */
			return inlen - 8;
			}
		}
	if (pad)
		{
		if (ctx->encrypt)
			rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
						out, in, inlen,
						(block128_f)AES_encrypt);
		else
			rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
						out, in, inlen,
						(block128_f)AES_decrypt);
		}
	else
		{
		if (ctx->encrypt)
			rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
						out, in, inlen,
						(block128_f)AES_encrypt);
		else
			rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
						out, in, inlen,
						(block128_f)AES_decrypt);
		}
	return rv ? (int)rv : -1;
	}

#define WRAP_FLAGS	(EVP_CIPH_WRAP_MODE \
		| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
		| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)

static const EVP_CIPHER aes_128_wrap = {
	NID_id_aes128_wrap,
	8, 16, 8, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_128_wrap(void)
	{
	return &aes_128_wrap;
	}

static const EVP_CIPHER aes_192_wrap = {
	NID_id_aes192_wrap,
	8, 24, 8, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_192_wrap(void)
	{
	return &aes_192_wrap;
	}

static const EVP_CIPHER aes_256_wrap = {
	NID_id_aes256_wrap,
	8, 32, 8, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_256_wrap(void)
	{
	return &aes_256_wrap;
	}

static const EVP_CIPHER aes_128_wrap_pad = {
	NID_id_aes128_wrap_pad,
	8, 16, 4, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
	{
	return &aes_128_wrap_pad;
	}

static const EVP_CIPHER aes_192_wrap_pad = {
	NID_id_aes192_wrap_pad,
	8, 24, 4, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
	{
	return &aes_192_wrap_pad;
	}

static const EVP_CIPHER aes_256_wrap_pad = {
	NID_id_aes256_wrap_pad,
	8, 32, 4, WRAP_FLAGS,
	aes_wrap_init_key, aes_wrap_cipher,
	NULL,
	sizeof(EVP_AES_WRAP_CTX),
	NULL,NULL,NULL,NULL };

const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
	{
	return &aes_256_wrap_pad;
	}

#ifndef OPENSSL_NO_OCB
static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
	{
	EVP_AES_OCB_CTX *octx = c->cipher_data;
	EVP_CIPHER_CTX *newc;
	EVP_AES_OCB_CTX *new_octx;

	switch (type)
		{
	case EVP_CTRL_INIT:
		octx->key_set = 0;
		octx->iv_set = 0;
		octx->ivlen = c->cipher->iv_len;
		octx->iv = c->iv;
		octx->taglen = 16;
		octx->data_buf_len = 0;
		octx->aad_buf_len = 0;
		return 1;

	case EVP_CTRL_SET_IVLEN:
		/* IV len must be 1 to 15 */
		if (arg <= 0 || arg > 15)
			return 0;

		octx->ivlen = arg;
		return 1;

	case EVP_CTRL_OCB_SET_TAGLEN:
		/* Tag len must be 0 to 16 */
		if (arg < 0 || arg > 16)
			return 0;

		octx->taglen = arg;
		return 1;

	case EVP_CTRL_SET_TAG:
		if (arg != octx->taglen || c->encrypt)
			return 0;
		memcpy(octx->tag, ptr, arg);
		return 1;

	case EVP_CTRL_GET_TAG:
		if (arg != octx->taglen || !c->encrypt)
			return 0;

		memcpy(ptr, octx->tag, arg);
		return 1;

	case EVP_CTRL_COPY:
		newc = (EVP_CIPHER_CTX *)ptr;
		new_octx = newc->cipher_data;
		return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
			&new_octx->ksenc, &new_octx->ksdec);

	default:
		return -1;

		}
	}


static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
		const unsigned char *iv, int enc)
	{
	EVP_AES_OCB_CTX *octx = ctx->cipher_data;
	if (!iv && !key)
		return 1;
	if (key)
		{
		do
			{
			/* We set both the encrypt and decrypt key here because decrypt
			 * needs both. We could possibly optimise to remove setting the
			 * decrypt for an encryption operation.
			 */
#ifdef VPAES_CAPABLE
			if (VPAES_CAPABLE)
				{
				vpaes_set_encrypt_key(key,ctx->key_len*8,&octx->ksenc);
				vpaes_set_decrypt_key(key,ctx->key_len*8,&octx->ksdec);
				if(!CRYPTO_ocb128_init(&octx->ocb,&octx->ksenc,&octx->ksdec,
						(block128_f)vpaes_encrypt,(block128_f)vpaes_decrypt))
					return 0;
				break;
				}
#endif
			AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc);
			AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec);
			if(!CRYPTO_ocb128_init(&octx->ocb, &octx->ksenc, &octx->ksdec,
					(block128_f)AES_encrypt, (block128_f)AES_decrypt))
				return 0;
			}
		while (0);

		/* If we have an iv we can set it directly, otherwise use
		 * saved IV.
		 */
		if (iv == NULL && octx->iv_set)
			iv = octx->iv;
		if (iv)
			{
			if(CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen) != 1)
				return 0;
			octx->iv_set = 1;
			}
		octx->key_set = 1;
		}
	else
		{
		/* If key set use IV, otherwise copy */
		if (octx->key_set)
			CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
		else
			memcpy(octx->iv, iv, octx->ivlen);
		octx->iv_set = 1;
		}
	return 1;
	}

static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
		const unsigned char *in, size_t len)
	{
	unsigned char *buf;
	int *buf_len;
	int written_len = 0;
	size_t trailing_len;
	EVP_AES_OCB_CTX *octx = ctx->cipher_data;

	/* If IV or Key not set then return error */
	if (!octx->iv_set)
		return -1;

	if (!octx->key_set)
		return -1;

	if (in)
		{
		/* Need to ensure we are only passing full blocks to low level OCB
		 * routines. We do it here rather than in EVP_EncryptUpdate/
		 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
		 * and those routines don't support that
		 */

		/* Are we dealing with AAD or normal data here? */
		if (out == NULL)
			{
			buf = octx->aad_buf;
			buf_len = &(octx->aad_buf_len);
			}
		else
			{
			buf = octx->data_buf;
			buf_len = &(octx->data_buf_len);
			}

		/* If we've got a partially filled buffer from a previous call then use
		 * that data first
		 */
		if(*buf_len)
			{
			unsigned int remaining;

			remaining = 16 - (*buf_len);
			if(remaining > len)
				{
				memcpy(buf+(*buf_len), in, len);
				*(buf_len)+=len;
				return 0;
				}
			memcpy(buf+(*buf_len), in, remaining);

			/* If we get here we've filled the buffer, so process it */
			len -= remaining;
			in += remaining;
			if (out == NULL)
				{
				if(!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
					return -1;
				}
			else if (ctx->encrypt)
				{
				if(!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
					return -1;
				}
			else
				{
				if(!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
					return -1;
				}
			written_len = 16;
			*buf_len = 0;
			}

		/* Do we have a partial block to handle at the end? */
		trailing_len = len % 16;

		/* If we've got some full blocks to handle, then process these first */
		if(len != trailing_len)
			{
			if (out == NULL)
				{
				if(!CRYPTO_ocb128_aad(&octx->ocb, in, len-trailing_len))
					return -1;
				}
			else if (ctx->encrypt)
				{
				if(!CRYPTO_ocb128_encrypt(&octx->ocb, in, out, len-trailing_len))
					return -1;
				}
			else
				{
				if(!CRYPTO_ocb128_decrypt(&octx->ocb, in, out, len-trailing_len))
					return -1;
				}
			written_len += len-trailing_len;
			in += len-trailing_len;
			}

		/* Handle any trailing partial block */
		if(trailing_len)
			{
			memcpy(buf, in, trailing_len);
			*buf_len = trailing_len;
			}

		return written_len;
		}
	else
		{
		/* First of all empty the buffer of any partial block that we might
		 * have been provided - both for data and AAD
		 */
		if(octx->data_buf_len)
			{
			if (ctx->encrypt)
				{
				if(!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
						octx->data_buf_len))
					return -1;
				}
			else
				{
				if(!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
						octx->data_buf_len))
					return -1;
				}
			written_len = octx->data_buf_len;
			octx->data_buf_len = 0;
			}
		if(octx->aad_buf_len)
			{
			if(!CRYPTO_ocb128_aad(&octx->ocb, octx->aad_buf, octx->aad_buf_len))
				return -1;
			octx->aad_buf_len = 0;
			}
		/* If decrypting then verify */
		if (!ctx->encrypt)
			{
			if (octx->taglen < 0)
				return -1;
			if (CRYPTO_ocb128_finish(&octx->ocb,
					octx->tag, octx->taglen) != 0)
				return -1;
			octx->iv_set = 0;
			return written_len;
			}
		/* If encrypting then just get the tag */
		if(CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
			return -1;
		/* Don't reuse the IV */
		octx->iv_set = 0;
		return written_len;
		}
	}

static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
	{
	EVP_AES_OCB_CTX *octx = c->cipher_data;
	CRYPTO_ocb128_cleanup(&octx->ocb);
	return 1;
	}

BLOCK_CIPHER_custom(NID_aes,128,16,12,ocb,OCB,CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,192,16,12,ocb,OCB,CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,16,12,ocb,OCB,CUSTOM_FLAGS)
#endif /* OPENSSL_NO_OCB */

#endif
