Commit fce8311c authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

remove FIPS module code from crypto/dsa



Reviewed-by: default avatarTim Hudson <tjh@openssl.org>
parent 8d73db28
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+0 −15
Original line number Diff line number Diff line
@@ -213,21 +213,6 @@ void DSA_set_default_method(const DSA_METHOD *);
const DSA_METHOD *DSA_get_default_method(void);
int	DSA_set_method(DSA *dsa, const DSA_METHOD *);

#ifdef OPENSSL_FIPS
DSA *	FIPS_dsa_new(void);
void	FIPS_dsa_free (DSA *r);
DSA_SIG * FIPS_dsa_sign_digest(DSA *dsa, const unsigned char *dig, int dlen);
DSA_SIG * FIPS_dsa_sign_ctx(DSA *dsa, EVP_MD_CTX *ctx);
int FIPS_dsa_verify_digest(DSA *dsa,
				const unsigned char *dig, int dlen, DSA_SIG *s);
int FIPS_dsa_verify_ctx(DSA *dsa, EVP_MD_CTX *ctx, DSA_SIG *s);
int FIPS_dsa_verify(DSA *dsa, const unsigned char *msg, size_t msglen,
			const EVP_MD *mhash, DSA_SIG *s);
DSA_SIG * FIPS_dsa_sign(DSA *dsa, const unsigned char *msg, size_t msglen,
			const EVP_MD *mhash);

#endif

DSA *	DSA_new(void);
DSA *	DSA_new_method(ENGINE *engine);
void	DSA_free (DSA *r);
+0 −105
Original line number Diff line number Diff line
@@ -81,10 +81,6 @@
#include <openssl/bn.h>
#include <openssl/rand.h>
#include <openssl/sha.h>
#ifdef OPENSSL_FIPS
#include <openssl/fips.h>
#include <openssl/fips_rand.h>
#endif

#include "dsa_locl.h"

@@ -134,21 +130,6 @@ int dsa_builtin_paramgen(DSA *ret, size_t bits, size_t qbits,
	BN_CTX *ctx=NULL;
	unsigned int h=2;

#ifdef OPENSSL_FIPS
	if(FIPS_selftest_failed())
	    {
	    FIPSerr(FIPS_F_DSA_BUILTIN_PARAMGEN, FIPS_R_FIPS_SELFTEST_FAILED);
	    goto err;
	    }

	if (FIPS_module_mode() && !(ret->flags & DSA_FLAG_NON_FIPS_ALLOW) 
			&& (bits < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS))
		{
		DSAerr(DSA_F_DSA_BUILTIN_PARAMGEN, DSA_R_KEY_SIZE_TOO_SMALL);
		goto err;
		}
#endif

	if (qsize != SHA_DIGEST_LENGTH && qsize != SHA224_DIGEST_LENGTH &&
	    qsize != SHA256_DIGEST_LENGTH)
		/* invalid q size */
@@ -372,80 +353,6 @@ err:
	return ok;
	}

#ifdef OPENSSL_FIPS

/* Security strength of parameter values for (L,N): see FIPS186-3 4.2
 * and SP800-131A
 */


static int fips_ffc_strength(size_t L, size_t N)
	{
	if (L >= 15360 && N >= 512)
		return 256;
	if (L >= 7680 && N >= 384)
		return 192;
	if (L >= 3072 && N >= 256)
		return 128;
	if (L >= 2048 && N >= 224)
		return 112;
	if (L >= 1024 && N >= 160)
		return  80;
	return 0;
	}

/* Valid DSA2 parameters from FIPS 186-3 */

static int dsa2_valid_parameters(size_t L, size_t N)
	{
	if (L == 1024 && N == 160)
		return 80;
	if (L == 2048 && N == 224)
		return 112;
	if (L == 2048 && N == 256)
		return 112;
	if (L == 3072 && N == 256)
		return 128;
	return 0;
	}

int fips_check_dsa_prng(DSA *dsa, size_t L, size_t N)
	{
	int strength;
	if (!FIPS_module_mode())
		return 1;

	if (dsa->flags & (DSA_FLAG_NON_FIPS_ALLOW|DSA_FLAG_FIPS_CHECKED))
		return 1;

	if (!L || !N)
		{
		L = BN_num_bits(dsa->p);
		N = BN_num_bits(dsa->q);
		}
	if (!dsa2_valid_parameters(L, N))
		{
		FIPSerr(FIPS_F_FIPS_CHECK_DSA_PRNG, FIPS_R_INVALID_PARAMETERS);
		return 0;
		}

	strength = fips_ffc_strength(L, N);

	if (!strength)
		{
	    	FIPSerr(FIPS_F_FIPS_CHECK_DSA_PRNG,FIPS_R_KEY_TOO_SHORT);
		return 0;
		}

	if (FIPS_rand_strength() >= strength)
		return 1;

	FIPSerr(FIPS_F_FIPS_CHECK_DSA_PRNG,FIPS_R_PRNG_STRENGTH_TOO_LOW);
	return 0;

	}
#endif /* OPENSSL_FIPS */

/* This is a parameter generation algorithm for the DSA2 algorithm as
 * described in FIPS 186-3.
 */
@@ -471,18 +378,6 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N,

	EVP_MD_CTX_init(&mctx);

#ifdef OPENSSL_FIPS
	if(FIPS_selftest_failed())
	    {
	    FIPSerr(FIPS_F_DSA_BUILTIN_PARAMGEN2,
		    FIPS_R_FIPS_SELFTEST_FAILED);
	    goto err;
	    }

	if (!fips_check_dsa_prng(ret, L, N))
		goto err;
#endif

	if (evpmd == NULL)
		{
		if (N == 160)
+0 −43
Original line number Diff line number Diff line
@@ -66,30 +66,6 @@
#include <openssl/dsa.h>
#include <openssl/rand.h>

#ifdef OPENSSL_FIPS

#include <openssl/fips.h>
#include <openssl/evp.h>

static int fips_check_dsa(DSA *dsa)
	{
	EVP_PKEY pk;
	unsigned char tbs[] = "DSA Pairwise Check Data";
    	pk.type = EVP_PKEY_DSA;
    	pk.pkey.dsa = dsa;

	if (!fips_pkey_signature_test(FIPS_TEST_PAIRWISE,
					&pk, tbs, 0, NULL, 0, NULL, 0, NULL))
		{
		FIPSerr(FIPS_F_FIPS_CHECK_DSA,FIPS_R_PAIRWISE_TEST_FAILED);
		fips_set_selftest_fail();
		return 0;
		}
	return 1;
	}

#endif

static int dsa_builtin_keygen(DSA *dsa);

int DSA_generate_key(DSA *dsa)
@@ -105,17 +81,6 @@ static int dsa_builtin_keygen(DSA *dsa)
	BN_CTX *ctx=NULL;
	BIGNUM *pub_key=NULL,*priv_key=NULL;

#ifdef OPENSSL_FIPS
	if (FIPS_module_mode() && !(dsa->flags & DSA_FLAG_NON_FIPS_ALLOW)
		&& (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS))
		{
		DSAerr(DSA_F_DSA_BUILTIN_KEYGEN, DSA_R_KEY_SIZE_TOO_SMALL);
		goto err;
		}
	if (!fips_check_dsa_prng(dsa, 0, 0))
		goto err;
#endif

	if ((ctx=BN_CTX_new()) == NULL) goto err;

	if (dsa->priv_key == NULL)
@@ -154,14 +119,6 @@ static int dsa_builtin_keygen(DSA *dsa)

	dsa->priv_key=priv_key;
	dsa->pub_key=pub_key;
#ifdef OPENSSL_FIPS
	if(!fips_check_dsa(dsa))
		{
		dsa->pub_key = NULL;
		dsa->priv_key = NULL;
	    	goto err;
		}
#endif
	ok=1;

err:
+0 −35
Original line number Diff line number Diff line
@@ -67,9 +67,6 @@
#include <openssl/dsa.h>
#include <openssl/rand.h>
#include <openssl/asn1.h>
#ifdef OPENSSL_FIPS
#include <openssl/fips.h>
#endif

static DSA_SIG *dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
static int dsa_sign_setup_no_digest(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp);
@@ -146,23 +143,6 @@ static DSA_SIG *dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
	DSA_SIG *ret=NULL;
	int noredo = 0;

#ifdef OPENSSL_FIPS
	if(FIPS_selftest_failed())
	    {
	    FIPSerr(FIPS_F_DSA_DO_SIGN,FIPS_R_FIPS_SELFTEST_FAILED);
	    return NULL;
	    }

	if (FIPS_module_mode() && !(dsa->flags & DSA_FLAG_NON_FIPS_ALLOW) 
		&& (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS))
		{
		DSAerr(DSA_F_DSA_DO_SIGN, DSA_R_KEY_SIZE_TOO_SMALL);
		return NULL;
		}
	if (!fips_check_dsa_prng(dsa, 0, 0))
		goto err;
#endif

	BN_init(&m);
	BN_init(&xr);

@@ -372,21 +352,6 @@ static int dsa_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
		return -1;
		}

#ifdef OPENSSL_FIPS
	if(FIPS_selftest_failed())
	    {
	    FIPSerr(FIPS_F_DSA_DO_VERIFY,FIPS_R_FIPS_SELFTEST_FAILED);
	    return -1;
	    }

	if (FIPS_module_mode() && !(dsa->flags & DSA_FLAG_NON_FIPS_ALLOW) 
		&& (BN_num_bits(dsa->p) < OPENSSL_DSA_FIPS_MIN_MODULUS_BITS))
		{
		DSAerr(DSA_F_DSA_DO_VERIFY, DSA_R_KEY_SIZE_TOO_SMALL);
		return -1;
		}
#endif

	if (BN_num_bits(dsa->p) > OPENSSL_DSA_MAX_MODULUS_BITS)
		{
		DSAerr(DSA_F_DSA_DO_VERIFY,DSA_R_MODULUS_TOO_LARGE);