e_aes.c

/* ====================================================================
 * 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.
 * ====================================================================
 *
 */

#define OPENSSL_FIPSAPI

#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;

#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	VPAES_CAPABLE
#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);

#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);

#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;