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Add pairwise consistency test to EC.

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This commit is contained in:
Dr. Stephen Henson 2011-02-15 16:58:28 +00:00
parent c81f8f59be
commit 0fbf8f447b
4 changed files with 57 additions and 0 deletions
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40
crypto/ec/ec_key.c
View file

@ -232,6 +232,35 @@ int EC_KEY_up_ref(EC_KEY *r)
return ((i > 1) ? 1 : 0);
}
#ifdef OPENSSL_FIPS
#include <openssl/evp.h>
static int fips_ec_pairwise_fail = 0;
void FIPS_corrupt_ec_keygen(void)
{
fips_ec_pairwise_fail = 1;
}
static int fips_check_ec(EC_KEY *key)
{
EVP_PKEY pk;
unsigned char tbs[] = "ECDSA Pairwise Check Data";
pk.type = EVP_PKEY_EC;
pk.pkey.ec = key;
if (!fips_pkey_signature_test(&pk, tbs, -1, NULL, 0, NULL, 0, NULL))
{
FIPSerr(FIPS_F_FIPS_CHECK_EC,FIPS_R_PAIRWISE_TEST_FAILED);
fips_set_selftest_fail();
return 0;
}
return 1;
}
#endif
int EC_KEY_generate_key(EC_KEY *eckey)
{
int ok = 0;
@ -280,6 +309,17 @@ int EC_KEY_generate_key(EC_KEY *eckey)
eckey->priv_key = priv_key;
eckey->pub_key = pub_key;
#ifdef OPENSSL_FIPS
if (fips_ec_pairwise_fail)
BN_add_word(eckey->priv_key, 1);
if(!fips_check_ec(eckey))
{
eckey->priv_key = NULL;
eckey->pub_key = NULL;
goto err;
}
#endif
ok=1;
err:

1
crypto/fips_err.h
View file

@ -78,6 +78,7 @@ static ERR_STRING_DATA FIPS_str_functs[]=
{ERR_FUNC(FIPS_F_EVP_CIPHERINIT_EX), "EVP_CipherInit_ex"},
{ERR_FUNC(FIPS_F_EVP_DIGESTINIT_EX), "EVP_DigestInit_ex"},
{ERR_FUNC(FIPS_F_FIPS_CHECK_DSA), "FIPS_CHECK_DSA"},
{ERR_FUNC(FIPS_F_FIPS_CHECK_EC), "FIPS_CHECK_EC"},
{ERR_FUNC(FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT), "FIPS_check_incore_fingerprint"},
{ERR_FUNC(FIPS_F_FIPS_CHECK_RSA), "fips_check_rsa"},
{ERR_FUNC(FIPS_F_FIPS_CIPHERINIT), "FIPS_CIPHERINIT"},

14
fips/fips.c
View file

@ -56,6 +56,7 @@
#include <openssl/hmac.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/ecdsa.h>
#include <string.h>
#include <limits.h>
#include "fips_locl.h"
@ -437,6 +438,7 @@ int fips_pkey_signature_test(EVP_PKEY *pkey,
unsigned char sigtmp[256], *sig = sigtmp;
unsigned int siglen;
DSA_SIG *dsig = NULL;
ECDSA_SIG *esig = NULL;
EVP_MD_CTX mctx;
FIPS_md_ctx_init(&mctx);
@ -473,6 +475,12 @@ int fips_pkey_signature_test(EVP_PKEY *pkey,
if (!dsig)
goto error;
}
else if (pkey->type == EVP_PKEY_EC)
{
esig = FIPS_ecdsa_sign_ctx(pkey->pkey.ec, &mctx);
if (!esig)
goto error;
}
#if 0
else if (!EVP_SignFinal(&mctx, sig, &siglen, pkey))
goto error;
@ -494,6 +502,10 @@ int fips_pkey_signature_test(EVP_PKEY *pkey,
{
ret = FIPS_dsa_verify_ctx(pkey->pkey.dsa, &mctx, dsig);
}
else if (pkey->type == EVP_PKEY_EC)
{
ret = FIPS_ecdsa_verify_ctx(pkey->pkey.ec, &mctx, esig);
}
#if 0
else
ret = EVP_VerifyFinal(&mctx, sig, siglen, pkey);
@ -502,6 +514,8 @@ int fips_pkey_signature_test(EVP_PKEY *pkey,
error:
if (dsig != NULL)
FIPS_dsa_sig_free(dsig);
if (esig != NULL)
FIPS_ecdsa_sig_free(esig);
if (sig != sigtmp)
OPENSSL_free(sig);
FIPS_md_ctx_cleanup(&mctx);

2
fips/fips.h
View file

@ -84,6 +84,7 @@ int FIPS_selftest_rsa(void);
void FIPS_corrupt_dsa(void);
void FIPS_corrupt_dsa_keygen(void);
int FIPS_selftest_dsa(void);
void FIPS_corrupt_ec_keygen(void);
void FIPS_corrupt_rng(void);
void FIPS_rng_stick(void);
int FIPS_selftest_rng(void);
@ -180,6 +181,7 @@ void ERR_load_FIPS_strings(void);
#define FIPS_F_EVP_CIPHERINIT_EX 124
#define FIPS_F_EVP_DIGESTINIT_EX 125
#define FIPS_F_FIPS_CHECK_DSA 104
#define FIPS_F_FIPS_CHECK_EC 129
#define FIPS_F_FIPS_CHECK_INCORE_FINGERPRINT 105
#define FIPS_F_FIPS_CHECK_RSA 106
#define FIPS_F_FIPS_CIPHERINIT 128