diff options
Diffstat (limited to 'src/crypto/cipher/e_ssl3.c')
| -rw-r--r-- | src/crypto/cipher/e_ssl3.c | 56 |
1 files changed, 39 insertions, 17 deletions
diff --git a/src/crypto/cipher/e_ssl3.c b/src/crypto/cipher/e_ssl3.c index 1031d9b..389c52f 100644 --- a/src/crypto/cipher/e_ssl3.c +++ b/src/crypto/cipher/e_ssl3.c @@ -85,12 +85,12 @@ static int aead_ssl3_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, const EVP_CIPHER *cipher, const EVP_MD *md) { if (tag_len != EVP_AEAD_DEFAULT_TAG_LENGTH && tag_len != EVP_MD_size(md)) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_init, CIPHER_R_UNSUPPORTED_TAG_SIZE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_UNSUPPORTED_TAG_SIZE); return 0; } if (key_len != EVP_AEAD_key_length(ctx->aead)) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_init, CIPHER_R_BAD_KEY_LENGTH); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BAD_KEY_LENGTH); return 0; } @@ -102,7 +102,7 @@ static int aead_ssl3_init(EVP_AEAD_CTX *ctx, const uint8_t *key, size_t key_len, AEAD_SSL3_CTX *ssl3_ctx = OPENSSL_malloc(sizeof(AEAD_SSL3_CTX)); if (ssl3_ctx == NULL) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_init, ERR_R_MALLOC_FAILURE); + OPENSSL_PUT_ERROR(CIPHER, ERR_R_MALLOC_FAILURE); return 0; } EVP_CIPHER_CTX_init(&ssl3_ctx->cipher_ctx); @@ -133,29 +133,29 @@ static int aead_ssl3_seal(const EVP_AEAD_CTX *ctx, uint8_t *out, if (!ssl3_ctx->cipher_ctx.encrypt) { /* Unlike a normal AEAD, an SSL3 AEAD may only be used in one direction. */ - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_seal, CIPHER_R_INVALID_OPERATION); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_INVALID_OPERATION); return 0; } if (in_len + EVP_AEAD_max_overhead(ctx->aead) < in_len || in_len > INT_MAX) { /* EVP_CIPHER takes int as input. */ - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_seal, CIPHER_R_TOO_LARGE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_TOO_LARGE); return 0; } if (max_out_len < in_len + EVP_AEAD_max_overhead(ctx->aead)) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_seal, CIPHER_R_BUFFER_TOO_SMALL); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BUFFER_TOO_SMALL); return 0; } if (nonce_len != 0) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_seal, CIPHER_R_IV_TOO_LARGE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_IV_TOO_LARGE); return 0; } if (ad_len != 11 - 2 /* length bytes */) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_seal, CIPHER_R_INVALID_AD_SIZE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_INVALID_AD_SIZE); return 0; } @@ -217,36 +217,36 @@ static int aead_ssl3_open(const EVP_AEAD_CTX *ctx, uint8_t *out, if (ssl3_ctx->cipher_ctx.encrypt) { /* Unlike a normal AEAD, an SSL3 AEAD may only be used in one direction. */ - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_INVALID_OPERATION); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_INVALID_OPERATION); return 0; } size_t mac_len = EVP_MD_CTX_size(&ssl3_ctx->md_ctx); if (in_len < mac_len) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_BAD_DECRYPT); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BAD_DECRYPT); return 0; } if (max_out_len < in_len) { /* This requires that the caller provide space for the MAC, even though it * will always be removed on return. */ - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_BUFFER_TOO_SMALL); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BUFFER_TOO_SMALL); return 0; } if (nonce_len != 0) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_TOO_LARGE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_TOO_LARGE); return 0; } if (ad_len != 11 - 2 /* length bytes */) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_INVALID_AD_SIZE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_INVALID_AD_SIZE); return 0; } if (in_len > INT_MAX) { /* EVP_CIPHER takes int as input. */ - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_TOO_LARGE); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_TOO_LARGE); return 0; } @@ -270,12 +270,12 @@ static int aead_ssl3_open(const EVP_AEAD_CTX *ctx, uint8_t *out, if (EVP_CIPHER_CTX_mode(&ssl3_ctx->cipher_ctx) == EVP_CIPH_CBC_MODE) { unsigned padding_length = out[total - 1]; if (total < padding_length + 1 + mac_len) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_BAD_DECRYPT); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BAD_DECRYPT); return 0; } /* The padding must be minimal. */ if (padding_length + 1 > EVP_CIPHER_CTX_block_size(&ssl3_ctx->cipher_ctx)) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_BAD_DECRYPT); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BAD_DECRYPT); return 0; } data_len = total - padding_length - 1 - mac_len; @@ -289,7 +289,7 @@ static int aead_ssl3_open(const EVP_AEAD_CTX *ctx, uint8_t *out, return 0; } if (CRYPTO_memcmp(&out[data_len], mac, mac_len) != 0) { - OPENSSL_PUT_ERROR(CIPHER, aead_ssl3_open, CIPHER_R_BAD_DECRYPT); + OPENSSL_PUT_ERROR(CIPHER, CIPHER_R_BAD_DECRYPT); return 0; } @@ -340,6 +340,13 @@ static int aead_des_ede3_cbc_sha1_ssl3_init(EVP_AEAD_CTX *ctx, EVP_sha1()); } +static int aead_null_sha1_ssl3_init(EVP_AEAD_CTX *ctx, const uint8_t *key, + size_t key_len, size_t tag_len, + enum evp_aead_direction_t dir) { + return aead_ssl3_init(ctx, key, key_len, tag_len, dir, EVP_enc_null(), + EVP_sha1()); +} + static const EVP_AEAD aead_rc4_md5_ssl3 = { MD5_DIGEST_LENGTH + 16, /* key len (MD5 + RC4) */ 0, /* nonce len */ @@ -405,6 +412,19 @@ static const EVP_AEAD aead_des_ede3_cbc_sha1_ssl3 = { NULL, /* get_rc4_state */ }; +static const EVP_AEAD aead_null_sha1_ssl3 = { + SHA_DIGEST_LENGTH, /* key len */ + 0, /* nonce len */ + SHA_DIGEST_LENGTH, /* overhead (SHA1) */ + SHA_DIGEST_LENGTH, /* max tag length */ + NULL, /* init */ + aead_null_sha1_ssl3_init, + aead_ssl3_cleanup, + aead_ssl3_seal, + aead_ssl3_open, + NULL, /* get_rc4_state */ +}; + const EVP_AEAD *EVP_aead_rc4_md5_ssl3(void) { return &aead_rc4_md5_ssl3; } const EVP_AEAD *EVP_aead_rc4_sha1_ssl3(void) { return &aead_rc4_sha1_ssl3; } @@ -420,3 +440,5 @@ const EVP_AEAD *EVP_aead_aes_256_cbc_sha1_ssl3(void) { const EVP_AEAD *EVP_aead_des_ede3_cbc_sha1_ssl3(void) { return &aead_des_ede3_cbc_sha1_ssl3; } + +const EVP_AEAD *EVP_aead_null_sha1_ssl3(void) { return &aead_null_sha1_ssl3; } |