From 15272ab4ed1e6250412fccd48200ed9eae59608f Mon Sep 17 00:00:00 2001 From: marha Date: Mon, 29 Mar 2010 17:08:02 +0000 Subject: Updated to openssl 1.0.0 --- openssl/crypto/rsa/rsa_oaep.c | 35 +++++++++++++++++++++-------------- 1 file changed, 21 insertions(+), 14 deletions(-) (limited to 'openssl/crypto/rsa/rsa_oaep.c') diff --git a/openssl/crypto/rsa/rsa_oaep.c b/openssl/crypto/rsa/rsa_oaep.c index 4d30c9d2d..e238d10e5 100644 --- a/openssl/crypto/rsa/rsa_oaep.c +++ b/openssl/crypto/rsa/rsa_oaep.c @@ -28,7 +28,7 @@ #include #include -int MGF1(unsigned char *mask, long len, +static int MGF1(unsigned char *mask, long len, const unsigned char *seed, long seedlen); int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen, @@ -52,13 +52,6 @@ int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen, return 0; } - dbmask = OPENSSL_malloc(emlen - SHA_DIGEST_LENGTH); - if (dbmask == NULL) - { - RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP, ERR_R_MALLOC_FAILURE); - return 0; - } - to[0] = 0; seed = to + 1; db = to + SHA_DIGEST_LENGTH + 1; @@ -76,11 +69,20 @@ int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen, 20); #endif - MGF1(dbmask, emlen - SHA_DIGEST_LENGTH, seed, SHA_DIGEST_LENGTH); + dbmask = OPENSSL_malloc(emlen - SHA_DIGEST_LENGTH); + if (dbmask == NULL) + { + RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP, ERR_R_MALLOC_FAILURE); + return 0; + } + + if (MGF1(dbmask, emlen - SHA_DIGEST_LENGTH, seed, SHA_DIGEST_LENGTH) < 0) + return 0; for (i = 0; i < emlen - SHA_DIGEST_LENGTH; i++) db[i] ^= dbmask[i]; - MGF1(seedmask, SHA_DIGEST_LENGTH, db, emlen - SHA_DIGEST_LENGTH); + if (MGF1(seedmask, SHA_DIGEST_LENGTH, db, emlen - SHA_DIGEST_LENGTH) < 0) + return 0; for (i = 0; i < SHA_DIGEST_LENGTH; i++) seed[i] ^= seedmask[i]; @@ -133,11 +135,13 @@ int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen, maskeddb = padded_from + SHA_DIGEST_LENGTH; - MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen); + if (MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen)) + return -1; for (i = 0; i < SHA_DIGEST_LENGTH; i++) seed[i] ^= padded_from[i]; - MGF1(db, dblen, seed, SHA_DIGEST_LENGTH); + if (MGF1(db, dblen, seed, SHA_DIGEST_LENGTH)) + return -1; for (i = 0; i < dblen; i++) db[i] ^= maskeddb[i]; @@ -187,7 +191,9 @@ int PKCS1_MGF1(unsigned char *mask, long len, int mdlen; EVP_MD_CTX_init(&c); - mdlen = M_EVP_MD_size(dgst); + mdlen = EVP_MD_size(dgst); + if (mdlen < 0) + return -1; for (i = 0; outlen < len; i++) { cnt[0] = (unsigned char)((i >> 24) & 255); @@ -213,7 +219,8 @@ int PKCS1_MGF1(unsigned char *mask, long len, return 0; } -int MGF1(unsigned char *mask, long len, const unsigned char *seed, long seedlen) +static int MGF1(unsigned char *mask, long len, const unsigned char *seed, + long seedlen) { return PKCS1_MGF1(mask, len, seed, seedlen, EVP_sha1()); } -- cgit v1.2.3