invocation field.
Add complete support for AES GCM ciphersuites including all those in
RFC5288 and RFC5289.
Changes between 1.0.1 and 1.1.0 [xx XXX xxxx]
+ *) Add GCM support to TLS library. Some custom code is needed to split
+ the IV between the fixed (from PRF) and explicit (from TLS record)
+ portions. This adds all GCM ciphersuites supported by RFC5288 and
+ RFC5289. Generalise some AES* cipherstrings to inlclude GCM and
+ add a special AESGCM string for GCM only.
+ [Steve Henson]
+
+ *) Expand range of ctrls for AES GCM. Permit setting invocation
+ field on decrypt and retrieval of invocation field only on encrypt.
+ [Steve Henson]
+
*) Add HMAC ECC ciphersuites from RFC5289. Include SHA384 PRF support.
As required by RFC5289 these ciphersuites cannot be used if for
versions of TLS earlier than 1.2.
EVP_add_cipher(EVP_aes_128_cfb8());
EVP_add_cipher(EVP_aes_128_ofb());
EVP_add_cipher(EVP_aes_128_ctr());
+ EVP_add_cipher(EVP_aes_128_gcm());
EVP_add_cipher_alias(SN_aes_128_cbc,"AES128");
EVP_add_cipher_alias(SN_aes_128_cbc,"aes128");
EVP_add_cipher(EVP_aes_192_ecb());
EVP_add_cipher(EVP_aes_192_cfb8());
EVP_add_cipher(EVP_aes_192_ofb());
EVP_add_cipher(EVP_aes_192_ctr());
+ EVP_add_cipher(EVP_aes_192_gcm());
EVP_add_cipher_alias(SN_aes_192_cbc,"AES192");
EVP_add_cipher_alias(SN_aes_192_cbc,"aes192");
EVP_add_cipher(EVP_aes_256_ecb());
EVP_add_cipher(EVP_aes_256_cfb8());
EVP_add_cipher(EVP_aes_256_ofb());
EVP_add_cipher(EVP_aes_256_ctr());
+ EVP_add_cipher(EVP_aes_256_gcm());
EVP_add_cipher_alias(SN_aes_256_cbc,"AES256");
EVP_add_cipher_alias(SN_aes_256_cbc,"aes256");
#endif
int ivlen; /* IV length */
int taglen;
int iv_gen; /* It is OK to generate IVs */
+ int tls_aad_len; /* TLS AAD length */
} EVP_AES_GCM_CTX;
typedef struct
gctx->iv = c->iv;
gctx->taglen = -1;
gctx->iv_gen = 0;
+ gctx->tls_aad_len = -1;
return 1;
case EVP_CTRL_GCM_SET_IVLEN:
return 0;
if (arg)
memcpy(gctx->iv, ptr, arg);
- if (RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
+ if (c->encrypt &&
+ RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
return 0;
gctx->iv_gen = 1;
return 1;
if (gctx->iv_gen == 0 || gctx->key_set == 0)
return 0;
CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
- memcpy(ptr, gctx->iv, gctx->ivlen);
+ if (arg <= 0 || arg > gctx->ivlen)
+ arg = gctx->ivlen;
+ memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
/* Invocation field will be at least 8 bytes in size and
* so no need to check wrap around or increment more than
* last 8 bytes.
gctx->iv_set = 1;
return 1;
+ case EVP_CTRL_GCM_SET_IV_INV:
+ if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
+ return 0;
+ memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
+ CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ return 1;
+
+ case EVP_CTRL_AEAD_TLS1_AAD:
+ /* Save the AAD for later use */
+ if (arg != 13)
+ return 0;
+ memcpy(c->buf, ptr, arg);
+ gctx->tls_aad_len = arg;
+ {
+ unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
+ /* Correct length for explicit IV */
+ len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ /* If decrypting correct for tag too */
+ if (!c->encrypt)
+ len -= EVP_GCM_TLS_TAG_LEN;
+ c->buf[arg-2] = len>>8;
+ c->buf[arg-1] = len & 0xff;
+ }
+ /* Extra padding: tag appended to record */
+ return EVP_GCM_TLS_TAG_LEN;
+
default:
return -1;
return 1;
}
+/* Handle TLS GCM packet format. This consists of the last portion of the IV
+ * followed by the payload and finally the tag. On encrypt generate IV,
+ * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
+ * and verify tag.
+ */
+
+static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+ {
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ int rv = -1;
+ /* Encrypt/decrypt must be performed in place */
+ if (out != in)
+ return -1;
+ /* Set IV from start of buffer or generate IV and write to start
+ * of buffer.
+ */
+ if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
+ EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
+ EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
+ goto err;
+ /* Use saved AAD */
+ if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
+ goto err;
+ /* Fix buffer and length to point to payload */
+ in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
+ if (ctx->encrypt)
+ {
+ /* Encrypt payload */
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len))
+ goto err;
+ out += len;
+ /* Finally write tag */
+ CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
+ rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
+ }
+ else
+ {
+ /* Decrypt */
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len))
+ goto err;
+ /* Retrieve tag */
+ CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
+ EVP_GCM_TLS_TAG_LEN);
+ /* If tag mismatch wipe buffer */
+ if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
+ {
+ OPENSSL_cleanse(out, len);
+ goto err;
+ }
+ rv = len;
+ }
+
+ err:
+ gctx->iv_set = 0;
+ gctx->tls_aad_len = -1;
+ return rv;
+ }
+
static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
/* If not set up, return error */
- if (!gctx->iv_set && !gctx->key_set)
+ if (!gctx->key_set)
+ return -1;
+
+ if (gctx->tls_aad_len >= 0)
+ return aes_gcm_tls_cipher(ctx, out, in, len);
+
+ if (!gctx->iv_set)
return -1;
if (!ctx->encrypt && gctx->taglen < 0)
return -1;
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
-BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
-BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
-BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
+BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
+ EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
+BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
+ EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
+BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
+ EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{
#define EVP_CTRL_AEAD_TLS1_AAD 0x16
/* Used by composite AEAD ciphers, no-op in GCM, CCM... */
#define EVP_CTRL_AEAD_SET_MAC_KEY 0x17
+/* Set the GCM invocation field, decrypt only */
+#define EVP_CTRL_GCM_SET_IV_INV 0x18
+
+/* GCM TLS constants */
+/* Length of fixed part of IV derived from PRF */
+#define EVP_GCM_TLS_FIXED_IV_LEN 4
+/* Length of explicit part of IV part of TLS records */
+#define EVP_GCM_TLS_EXPLICIT_IV_LEN 8
+/* Length of tag for TLS */
+#define EVP_GCM_TLS_TAG_LEN 16
typedef struct evp_cipher_info_st
{
#endif /* OPENSSL_NO_SEED */
+ /* GCM ciphersuites from RFC5288 */
+
+ /* Cipher 9C */
+ {
+ 1,
+ TLS1_TXT_RSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_RSA_WITH_AES_128_GCM_SHA256,
+ SSL_kRSA,
+ SSL_aRSA,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher 9D */
+ {
+ 1,
+ TLS1_TXT_RSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_RSA_WITH_AES_256_GCM_SHA384,
+ SSL_kRSA,
+ SSL_aRSA,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher 9E */
+ {
+ 1,
+ TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256,
+ SSL_kEDH,
+ SSL_aRSA,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher 9F */
+ {
+ 1,
+ TLS1_TXT_DHE_RSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384,
+ SSL_kEDH,
+ SSL_aRSA,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher A0 */
+ {
+ 0,
+ TLS1_TXT_DH_RSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_DH_RSA_WITH_AES_128_GCM_SHA256,
+ SSL_kDHr,
+ SSL_aDH,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher A1 */
+ {
+ 0,
+ TLS1_TXT_DH_RSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_DH_RSA_WITH_AES_256_GCM_SHA384,
+ SSL_kDHr,
+ SSL_aDH,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher A2 */
+ {
+ 1,
+ TLS1_TXT_DHE_DSS_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_DHE_DSS_WITH_AES_128_GCM_SHA256,
+ SSL_kEDH,
+ SSL_aDSS,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher A3 */
+ {
+ 1,
+ TLS1_TXT_DHE_DSS_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_DHE_DSS_WITH_AES_256_GCM_SHA384,
+ SSL_kEDH,
+ SSL_aDSS,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher A4 */
+ {
+ 0,
+ TLS1_TXT_DH_DSS_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_DH_DSS_WITH_AES_128_GCM_SHA256,
+ SSL_kDHr,
+ SSL_aDH,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher A5 */
+ {
+ 0,
+ TLS1_TXT_DH_DSS_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_DH_DSS_WITH_AES_256_GCM_SHA384,
+ SSL_kDHr,
+ SSL_aDH,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher A6 */
+ {
+ 1,
+ TLS1_TXT_ADH_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_ADH_WITH_AES_128_GCM_SHA256,
+ SSL_kEDH,
+ SSL_aNULL,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher A7 */
+ {
+ 1,
+ TLS1_TXT_ADH_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_ADH_WITH_AES_256_GCM_SHA384,
+ SSL_kEDH,
+ SSL_aNULL,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
#ifndef OPENSSL_NO_ECDH
/* Cipher C001 */
{
256,
},
+ /* GCM based TLS v1.2 ciphersuites from RFC5289 */
+
+ /* Cipher C02B */
+ {
+ 1,
+ TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+ SSL_kEECDH,
+ SSL_aECDSA,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher C02C */
+ {
+ 1,
+ TLS1_TXT_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+ SSL_kEECDH,
+ SSL_aECDSA,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher C02D */
+ {
+ 1,
+ TLS1_TXT_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
+ SSL_kECDHe,
+ SSL_aECDH,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher C02E */
+ {
+ 1,
+ TLS1_TXT_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
+ SSL_kECDHe,
+ SSL_aECDH,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher C02F */
+ {
+ 1,
+ TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+ SSL_kEECDH,
+ SSL_aRSA,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher C030 */
+ {
+ 1,
+ TLS1_TXT_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
+ SSL_kEECDH,
+ SSL_aRSA,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
+ /* Cipher C031 */
+ {
+ 1,
+ TLS1_TXT_ECDH_RSA_WITH_AES_128_GCM_SHA256,
+ TLS1_CK_ECDH_RSA_WITH_AES_128_GCM_SHA256,
+ SSL_kECDHe,
+ SSL_aECDH,
+ SSL_AES128GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA256|TLS1_PRF_SHA256,
+ 128,
+ 128,
+ },
+
+ /* Cipher C032 */
+ {
+ 1,
+ TLS1_TXT_ECDH_RSA_WITH_AES_256_GCM_SHA384,
+ TLS1_CK_ECDH_RSA_WITH_AES_256_GCM_SHA384,
+ SSL_kECDHe,
+ SSL_aECDH,
+ SSL_AES256GCM,
+ SSL_AEAD,
+ SSL_TLSV1_2,
+ SSL_NOT_EXP|SSL_HIGH|SSL_FIPS,
+ SSL_HANDSHAKE_MAC_SHA384|TLS1_PRF_SHA384,
+ 256,
+ 256,
+ },
+
#endif /* OPENSSL_NO_ECDH */
plen=p;
p+=2;
/* Explicit IV length, block ciphers and TLS version 1.1 or later */
- if (s->enc_write_ctx && s->version >= TLS1_1_VERSION
- && EVP_CIPHER_CTX_mode(s->enc_write_ctx) == EVP_CIPH_CBC_MODE)
+ if (s->enc_write_ctx && s->version >= TLS1_1_VERSION)
{
- eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx);
- if (eivlen <= 1)
- eivlen = 0;
+ int mode = EVP_CIPHER_CTX_mode(s->enc_write_ctx);
+ if (mode == EVP_CIPH_CBC_MODE)
+ {
+ eivlen = EVP_CIPHER_CTX_iv_length(s->enc_write_ctx);
+ if (eivlen <= 1)
+ eivlen = 0;
+ }
+ /* Need explicit part of IV for GCM mode */
+ else if (mode == EVP_CIPH_GCM_MODE)
+ eivlen = EVP_GCM_TLS_EXPLICIT_IV_LEN;
}
else
eivlen = 0;
#define SSL_TXT_AES128 "AES128"
#define SSL_TXT_AES256 "AES256"
#define SSL_TXT_AES "AES"
+#define SSL_TXT_AES_GCM "AESGCM"
#define SSL_TXT_CAMELLIA128 "CAMELLIA128"
#define SSL_TXT_CAMELLIA256 "CAMELLIA256"
#define SSL_TXT_CAMELLIA "CAMELLIA"
#define SSL_ENC_CAMELLIA256_IDX 9
#define SSL_ENC_GOST89_IDX 10
#define SSL_ENC_SEED_IDX 11
-#define SSL_ENC_NUM_IDX 12
+#define SSL_ENC_AES128GCM_IDX 12
+#define SSL_ENC_AES256GCM_IDX 13
+#define SSL_ENC_NUM_IDX 14
static const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]={
- NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
+ NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL
};
#define SSL_COMP_NULL_IDX 0
{0,SSL_TXT_IDEA,0, 0,0,SSL_IDEA, 0,0,0,0,0,0},
{0,SSL_TXT_SEED,0, 0,0,SSL_SEED, 0,0,0,0,0,0},
{0,SSL_TXT_eNULL,0, 0,0,SSL_eNULL, 0,0,0,0,0,0},
- {0,SSL_TXT_AES128,0, 0,0,SSL_AES128,0,0,0,0,0,0},
- {0,SSL_TXT_AES256,0, 0,0,SSL_AES256,0,0,0,0,0,0},
- {0,SSL_TXT_AES,0, 0,0,SSL_AES128|SSL_AES256,0,0,0,0,0,0},
+ {0,SSL_TXT_AES128,0, 0,0,SSL_AES128|SSL_AES128GCM,0,0,0,0,0,0},
+ {0,SSL_TXT_AES256,0, 0,0,SSL_AES256|SSL_AES256GCM,0,0,0,0,0,0},
+ {0,SSL_TXT_AES,0, 0,0,SSL_AES,0,0,0,0,0,0},
+ {0,SSL_TXT_AES_GCM,0, 0,0,SSL_AES128GCM|SSL_AES256GCM,0,0,0,0,0,0},
{0,SSL_TXT_CAMELLIA128,0,0,0,SSL_CAMELLIA128,0,0,0,0,0,0},
{0,SSL_TXT_CAMELLIA256,0,0,0,SSL_CAMELLIA256,0,0,0,0,0,0},
{0,SSL_TXT_CAMELLIA ,0,0,0,SSL_CAMELLIA128|SSL_CAMELLIA256,0,0,0,0,0,0},
ssl_cipher_methods[SSL_ENC_SEED_IDX]=
EVP_get_cipherbyname(SN_seed_cbc);
+ ssl_cipher_methods[SSL_ENC_AES128GCM_IDX]=
+ EVP_get_cipherbyname(SN_aes_128_gcm);
+ ssl_cipher_methods[SSL_ENC_AES256GCM_IDX]=
+ EVP_get_cipherbyname(SN_aes_256_gcm);
+
ssl_digest_methods[SSL_MD_MD5_IDX]=
EVP_get_digestbyname(SN_md5);
ssl_mac_secret_size[SSL_MD_MD5_IDX]=
case SSL_SEED:
i=SSL_ENC_SEED_IDX;
break;
+ case SSL_AES128GCM:
+ i=SSL_ENC_AES128GCM_IDX;
+ break;
+ case SSL_AES256GCM:
+ i=SSL_ENC_AES256GCM_IDX;
+ break;
default:
i= -1;
break;
*md=NULL;
if (mac_pkey_type!=NULL) *mac_pkey_type = NID_undef;
if (mac_secret_size!=NULL) *mac_secret_size = 0;
-
+ if (c->algorithm_mac == SSL_AEAD)
+ mac_pkey_type = NULL;
}
else
{
*md=ssl_digest_methods[i];
if (mac_pkey_type!=NULL) *mac_pkey_type = ssl_mac_pkey_id[i];
if (mac_secret_size!=NULL) *mac_secret_size = ssl_mac_secret_size[i];
- }
+ }
if ((*enc != NULL) &&
(*md != NULL || (EVP_CIPHER_flags(*enc)&EVP_CIPH_FLAG_AEAD_CIPHER)) &&
case SSL_AES256:
enc="AES(256)";
break;
+ case SSL_AES128GCM:
+ enc="AESGCM(128)";
+ break;
+ case SSL_AES256GCM:
+ enc="AESGCM(256)";
+ break;
case SSL_CAMELLIA128:
enc="Camellia(128)";
break;
case SSL_SHA384:
mac="SHA384";
break;
+ case SSL_AEAD:
+ mac="AEAD";
+ break;
default:
mac="unknown";
break;
#define SSL_CAMELLIA256 0x00000200L
#define SSL_eGOST2814789CNT 0x00000400L
#define SSL_SEED 0x00000800L
+#define SSL_AES128GCM 0x00001000L
+#define SSL_AES256GCM 0x00002000L
-#define SSL_AES (SSL_AES128|SSL_AES256)
+#define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM)
#define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
/* Bits for algorithm_mac (symmetric authentication) */
+
#define SSL_MD5 0x00000001L
#define SSL_SHA1 0x00000002L
#define SSL_GOST94 0x00000004L
#define SSL_GOST89MAC 0x00000008L
#define SSL_SHA256 0x00000010L
#define SSL_SHA384 0x00000020L
+/* Not a real MAC, just an indication it is part of cipher */
+#define SSL_AEAD 0x00000040L
/* Bits for algorithm_ssl (protocol version) */
#define SSL_SSLV2 0x00000001L
j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
/* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
- k=EVP_CIPHER_iv_length(c);
+ /* If GCM mode only part of IV comes from PRF */
+ if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
+ k = EVP_GCM_TLS_FIXED_IV_LEN;
+ else
+ k=EVP_CIPHER_iv_length(c);
if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
(which == SSL3_CHANGE_CIPHER_SERVER_READ))
{
}
#endif /* KSSL_DEBUG */
- EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
+ if (EVP_CIPHER_mode(c) == EVP_CIPH_GCM_MODE)
+ {
+ EVP_CipherInit_ex(dd,c,NULL,key,NULL,(which & SSL3_CC_WRITE));
+ EVP_CIPHER_CTX_ctrl(dd, EVP_CTRL_GCM_SET_IV_FIXED, k, iv);
+ }
+ else
+ EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
/* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
if ((EVP_CIPHER_flags(c)&EVP_CIPH_FLAG_AEAD_CIPHER) && *mac_secret_size)
}
}
- if (!EVP_Cipher(ds,rec->data,rec->input,l))
+ if (EVP_Cipher(ds,rec->data,rec->input,l) < 0)
return -1; /* AEAD can fail to verify MAC */
+ if (EVP_CIPHER_mode(enc) == EVP_CIPH_GCM_MODE && !send)
+ {
+ rec->data += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ rec->input += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ rec->length -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ }
#ifdef KSSL_DEBUG
{
#define TLS1_CK_DHE_RSA_WITH_SEED_SHA 0x0300009A
#define TLS1_CK_ADH_WITH_SEED_SHA 0x0300009B
+/* TLS v1.2 GCM ciphersuites from RFC5288 */
+#define TLS1_CK_RSA_WITH_AES_128_GCM_SHA256 0x0300009C
+#define TLS1_CK_RSA_WITH_AES_256_GCM_SHA384 0x0300009D
+#define TLS1_CK_DHE_RSA_WITH_AES_128_GCM_SHA256 0x0300009E
+#define TLS1_CK_DHE_RSA_WITH_AES_256_GCM_SHA384 0x0300009F
+#define TLS1_CK_DH_RSA_WITH_AES_128_GCM_SHA256 0x030000A0
+#define TLS1_CK_DH_RSA_WITH_AES_256_GCM_SHA384 0x030000A1
+#define TLS1_CK_DHE_DSS_WITH_AES_128_GCM_SHA256 0x030000A2
+#define TLS1_CK_DHE_DSS_WITH_AES_256_GCM_SHA384 0x030000A3
+#define TLS1_CK_DH_DSS_WITH_AES_128_GCM_SHA256 0x030000A4
+#define TLS1_CK_DH_DSS_WITH_AES_256_GCM_SHA384 0x030000A5
+#define TLS1_CK_ADH_WITH_AES_128_GCM_SHA256 0x030000A6
+#define TLS1_CK_ADH_WITH_AES_256_GCM_SHA384 0x030000A7
+
/* ECC ciphersuites from draft-ietf-tls-ecc-12.txt with changes soon to be in draft 13 */
#define TLS1_CK_ECDH_ECDSA_WITH_NULL_SHA 0x0300C001
#define TLS1_CK_ECDH_ECDSA_WITH_RC4_128_SHA 0x0300C002
#define TLS1_CK_ECDH_RSA_WITH_AES_128_SHA256 0x0300C029
#define TLS1_CK_ECDH_RSA_WITH_AES_256_SHA384 0x0300C02A
+/* ECDH GCM based ciphersuites from RFC5289 */
+#define TLS1_CK_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 0x0300C02B
+#define TLS1_CK_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 0x0300C02C
+#define TLS1_CK_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 0x0300C02D
+#define TLS1_CK_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 0x0300C02E
+#define TLS1_CK_ECDHE_RSA_WITH_AES_128_GCM_SHA256 0x0300C02F
+#define TLS1_CK_ECDHE_RSA_WITH_AES_256_GCM_SHA384 0x0300C030
+#define TLS1_CK_ECDH_RSA_WITH_AES_128_GCM_SHA256 0x0300C031
+#define TLS1_CK_ECDH_RSA_WITH_AES_256_GCM_SHA384 0x0300C032
+
/* XXX
* Inconsistency alert:
* The OpenSSL names of ciphers with ephemeral DH here include the string
#define TLS1_TXT_ADH_WITH_AES_128_SHA256 "ADH-AES128-SHA256"
#define TLS1_TXT_ADH_WITH_AES_256_SHA256 "ADH-AES256-SHA256"
+/* TLS v1.2 GCM ciphersuites from RFC5288 */
+#define TLS1_TXT_RSA_WITH_AES_128_GCM_SHA256 "AES128-GCM-SHA256"
+#define TLS1_TXT_RSA_WITH_AES_256_GCM_SHA384 "AES256-GCM-SHA384"
+#define TLS1_TXT_DHE_RSA_WITH_AES_128_GCM_SHA256 "DHE-RSA-AES128-GCM-SHA256"
+#define TLS1_TXT_DHE_RSA_WITH_AES_256_GCM_SHA384 "DHE-RSA-AES256-GCM-SHA384"
+#define TLS1_TXT_DH_RSA_WITH_AES_128_GCM_SHA256 "DH-RSA-AES128-GCM-SHA256"
+#define TLS1_TXT_DH_RSA_WITH_AES_256_GCM_SHA384 "DH-RSA-AES256-GCM-SHA384"
+#define TLS1_TXT_DHE_DSS_WITH_AES_128_GCM_SHA256 "DHE-DSS-AES128-GCM-SHA256"
+#define TLS1_TXT_DHE_DSS_WITH_AES_256_GCM_SHA384 "DHE-DSS-AES256-GCM-SHA384"
+#define TLS1_TXT_DH_DSS_WITH_AES_128_GCM_SHA256 "DH-DSS-AES128-GCM-SHA256"
+#define TLS1_TXT_DH_DSS_WITH_AES_256_GCM_SHA384 "DH-DSS-AES256-GCM-SHA384"
+#define TLS1_TXT_ADH_WITH_AES_128_GCM_SHA256 "ADH-AES128-GCM-SHA256"
+#define TLS1_TXT_ADH_WITH_AES_256_GCM_SHA384 "ADH-AES256-GCM-SHA384"
+
/* ECDH HMAC based ciphersuites from RFC5289 */
#define TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_SHA256 "ECDHE-ECDSA-AES128-SHA256"
#define TLS1_TXT_ECDH_RSA_WITH_AES_128_SHA256 "ECDH-RSA-AES128-SHA256"
#define TLS1_TXT_ECDH_RSA_WITH_AES_256_SHA384 "ECDH-RSA-AES256-SHA384"
+/* ECDH GCM based ciphersuites from RFC5289 */
+#define TLS1_TXT_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 "ECDHE-ECDSA-AES128-GCM-SHA256"
+#define TLS1_TXT_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 "ECDHE-ECDSA-AES256-GCM-SHA384"
+#define TLS1_TXT_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 "ECDH-ECDSA-AES128-GCM-SHA256"
+#define TLS1_TXT_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 "ECDH-ECDSA-AES256-GCM-SHA384"
+#define TLS1_TXT_ECDHE_RSA_WITH_AES_128_GCM_SHA256 "ECDHE-RSA-AES128-GCM-SHA256"
+#define TLS1_TXT_ECDHE_RSA_WITH_AES_256_GCM_SHA384 "ECDHE-RSA-AES256-GCM-SHA384"
+#define TLS1_TXT_ECDH_RSA_WITH_AES_128_GCM_SHA256 "ECDH-RSA-AES128-GCM-SHA256"
+#define TLS1_TXT_ECDH_RSA_WITH_AES_256_GCM_SHA384 "ECDH-RSA-AES256-GCM-SHA384"
+
#define TLS_CT_RSA_SIGN 1
#define TLS_CT_DSS_SIGN 2
#define TLS_CT_RSA_FIXED_DH 3
projects / oweals / openssl.git / commitdiff