diff options
Diffstat (limited to 'src/crypto/cipher/e_rc4.c')
| -rw-r--r-- | src/crypto/cipher/e_rc4.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/crypto/cipher/e_rc4.c b/src/crypto/cipher/e_rc4.c index 04ddcb6..80dea36 100644 --- a/src/crypto/cipher/e_rc4.c +++ b/src/crypto/cipher/e_rc4.c @@ -299,7 +299,9 @@ static int aead_rc4_md5_tls_open(const EVP_AEAD_CTX *ctx, uint8_t *out, return 0; } - if (max_out_len < plaintext_len) { + 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_rc4_md5_tls_open, CIPHER_R_BUFFER_TOO_SMALL); return 0; } @@ -372,13 +374,24 @@ static int aead_rc4_md5_tls_open(const EVP_AEAD_CTX *ctx, uint8_t *out, return 1; } +static int aead_rc4_md5_tls_get_rc4_state(const EVP_AEAD_CTX *ctx, + const RC4_KEY **out_key) { + struct aead_rc4_md5_tls_ctx *rc4_ctx = ctx->aead_state; + *out_key = &rc4_ctx->rc4; + return 1; +} + static const EVP_AEAD aead_rc4_md5_tls = { 16 + MD5_DIGEST_LENGTH, /* key len (RC4 + MD5) */ 0, /* nonce len */ MD5_DIGEST_LENGTH, /* overhead */ MD5_DIGEST_LENGTH, /* max tag length */ - aead_rc4_md5_tls_init, aead_rc4_md5_tls_cleanup, - aead_rc4_md5_tls_seal, aead_rc4_md5_tls_open, + aead_rc4_md5_tls_init, + NULL, /* init_with_direction */ + aead_rc4_md5_tls_cleanup, + aead_rc4_md5_tls_seal, + aead_rc4_md5_tls_open, + aead_rc4_md5_tls_get_rc4_state, }; const EVP_AEAD *EVP_aead_rc4_md5_tls(void) { return &aead_rc4_md5_tls; } |