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added TLS support for AES-CCM-8

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This commit is contained in:
John Safranek
2013-01-15 15:20:30 -08:00
parent eb221238c2
commit ccff37f4b1
9 changed files with 274 additions and 50 deletions
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9
configure.ac
View File

@ -339,10 +339,10 @@ AC_ARG_ENABLE([aesccm],
if test "$ENABLED_AESCCM" = "yes"
then
AM_CFLAGS="$AM_CFLAGS -DHAVE_AESCCM"
AM_CFLAGS="$AM_CFLAGS -DHAVE_AESCCM -DCYASSL_SHA384 -DCYASSL_SHA512"
fi
AM_CONDITIONAL([BUILD_AESGCM], [test "x$ENABLED_AESGCM" = "xyes"])
AM_CONDITIONAL([BUILD_AESCCM], [test "x$ENABLED_AESCCM" = "xyes"])
# AES-NI
@ -422,6 +422,11 @@ then
ENABLED_SHA512="yes"
fi
if test "$ENABLED_AESCCM" = "yes"
then
ENABLED_SHA512="yes"
fi
AM_CONDITIONAL([BUILD_SHA512], [test "x$ENABLED_SHA512" = "xyes"])

4
ctaocrypt/src/aes.c
View File

@ -2660,10 +2660,12 @@ int AesCcmDecrypt(Aes* aes, byte* out, const byte* in, word32 inSz,
oSz = inSz;
XMEMCPY(B+1, nonce, AES_BLOCK_SIZE);
lenSz = AES_BLOCK_SIZE - 1 - nonceSz;
B[0] = (lenSz - 1);
for (i = 0; i < lenSz - 1; i++)
for (i = 0; i < lenSz; i++)
B[AES_BLOCK_SIZE - 1 - i] = 0;
B[15] = 1;
while (oSz >= AES_BLOCK_SIZE) {
AesEncrypt(aes, B, A);
xorbuf(A, in, AES_BLOCK_SIZE);

27
cyassl/internal.h
View File

@ -162,6 +162,10 @@ void c32to24(word32 in, word24 out);
#define BUILD_TLS_RSA_WITH_AES_128_GCM_SHA256
#define BUILD_TLS_RSA_WITH_AES_256_GCM_SHA384
#endif
#if defined (HAVE_AESCCM)
#define BUILD_TLS_RSA_WITH_AES_128_CCM_8_SHA256
#define BUILD_TLS_RSA_WITH_AES_256_CCM_8_SHA384
#endif
#endif
#if !defined(NO_PSK) && !defined(NO_AES) && !defined(NO_TLS)
@ -357,7 +361,14 @@ enum {
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0x2f,
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 = 0x30,
TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 = 0x31,
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 = 0x32
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 = 0x32,
/* AES-CCM, first byte is 0xC0 but isn't ECC,
* also, in some of the other AES-CCM suites
* there will be second byte number conflicts
* with non-ECC AES-GCM */
TLS_RSA_WITH_AES_128_CCM_8_SHA256 = 0xa0,
TLS_RSA_WITH_AES_256_CCM_8_SHA384 = 0xa1
};
@ -463,9 +474,6 @@ enum Misc {
AES_256_KEY_SIZE = 32, /* for 256 bit */
AES_192_KEY_SIZE = 24, /* for 192 bit */
AES_IV_SIZE = 16, /* always block size */
AES_GCM_IMP_IV_SZ = 4, /* Implicit part of IV */
AES_GCM_EXP_IV_SZ = 8, /* Explicit part of IV */
AES_GCM_CTR_IV_SZ = 4, /* Counter part of IV */
AES_128_KEY_SIZE = 16, /* for 128 bit */
AEAD_SEQ_OFFSET = 4, /* Auth Data: Sequence number */
@ -475,7 +483,9 @@ enum Misc {
AEAD_LEN_OFFSET = 11, /* Auth Data: Length */
AEAD_AUTH_TAG_SZ = 16, /* Size of the authentication tag */
AEAD_AUTH_DATA_SZ = 13, /* Size of the data to authenticate */
AEAD_NONCE_SZ = AES_GCM_EXP_IV_SZ + AES_GCM_IMP_IV_SZ,
AEAD_IMP_IV_SZ = 4, /* Size of the implicit IV */
AEAD_EXP_IV_SZ = 8, /* Size of the explicit IV */
AEAD_NONCE_SZ = AEAD_EXP_IV_SZ + AEAD_IMP_IV_SZ,
HC_128_KEY_SIZE = 16, /* 128 bits */
HC_128_IV_SIZE = 16, /* also 128 bits */
@ -970,6 +980,7 @@ enum BulkCipherAlgorithm {
idea,
aes,
aes_gcm,
aes_ccm,
hc128, /* CyaSSL extensions */
rabbit
};
@ -1052,9 +1063,9 @@ typedef struct Keys {
byte client_write_IV[AES_IV_SIZE]; /* max sizes */
byte server_write_IV[AES_IV_SIZE];
#ifdef HAVE_AEAD
byte aead_exp_IV[AES_GCM_EXP_IV_SZ];
byte aead_enc_imp_IV[AES_GCM_IMP_IV_SZ];
byte aead_dec_imp_IV[AES_GCM_IMP_IV_SZ];
byte aead_exp_IV[AEAD_EXP_IV_SZ];
byte aead_enc_imp_IV[AEAD_IMP_IV_SZ];
byte aead_dec_imp_IV[AEAD_IMP_IV_SZ];
#endif
word32 peer_sequence_number;

148
src/internal.c
View File

@ -767,6 +767,20 @@ void InitSuites(Suites* suites, ProtocolVersion pv, byte haveRSA, byte havePSK,
}
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8_SHA256
if (tls1_2 && haveRSA) {
suites->suites[idx++] = ECC_BYTE;
suites->suites[idx++] = TLS_RSA_WITH_AES_128_CCM_8_SHA256;
}
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8_SHA384
if (tls1_2 && haveRSA) {
suites->suites[idx++] = ECC_BYTE;
suites->suites[idx++] = TLS_RSA_WITH_AES_256_CCM_8_SHA384;
}
#endif
#ifdef BUILD_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
if (tls1_2 && haveDH && haveRSA) {
suites->suites[idx++] = 0;
@ -2934,7 +2948,7 @@ static INLINE word32 GetSEQIncrement(CYASSL* ssl, int verify)
static INLINE void AeadIncrementExpIV(CYASSL* ssl)
{
int i;
for (i = AES_GCM_EXP_IV_SZ-1; i >= 0; i--) {
for (i = AEAD_EXP_IV_SZ-1; i >= 0; i--) {
if (++ssl->keys.aead_exp_IV[i]) return;
}
}
@ -3001,15 +3015,51 @@ static INLINE int Encrypt(CYASSL* ssl, byte* out, const byte* input, word32 sz)
/* Store the length of the plain text minus the explicit
* IV length minus the authentication tag size. */
c16toa(sz - AES_GCM_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
c16toa(sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
additional + AEAD_LEN_OFFSET);
XMEMCPY(nonce,
ssl->keys.aead_enc_imp_IV, AES_GCM_IMP_IV_SZ);
XMEMCPY(nonce + AES_GCM_IMP_IV_SZ,
ssl->keys.aead_exp_IV, AES_GCM_EXP_IV_SZ);
ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
XMEMCPY(nonce + AEAD_IMP_IV_SZ,
ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
AesGcmEncrypt(ssl->encrypt.aes,
out + AES_GCM_EXP_IV_SZ, input + AES_GCM_EXP_IV_SZ,
sz - AES_GCM_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
nonce, AEAD_NONCE_SZ,
out + sz - AEAD_AUTH_TAG_SZ, AEAD_AUTH_TAG_SZ,
additional, AEAD_AUTH_DATA_SZ);
AeadIncrementExpIV(ssl);
XMEMSET(nonce, 0, AEAD_NONCE_SZ);
}
break;
#endif
#ifdef HAVE_AESCCM
case aes_ccm:
{
byte additional[AES_BLOCK_SIZE];
byte nonce[AEAD_NONCE_SZ];
XMEMSET(additional, 0, AES_BLOCK_SIZE);
/* sequence number field is 64-bits, we only use 32-bits */
c32toa(GetSEQIncrement(ssl, 0),
additional + AEAD_SEQ_OFFSET);
/* Store the type, version. Unfortunately, they are in
* the input buffer ahead of the plaintext. */
XMEMCPY(additional + AEAD_TYPE_OFFSET, input - 5, 3);
/* Store the length of the plain text minus the explicit
* IV length minus the authentication tag size. */
c16toa(sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
additional + AEAD_LEN_OFFSET);
XMEMCPY(nonce,
ssl->keys.aead_enc_imp_IV, AEAD_IMP_IV_SZ);
XMEMCPY(nonce + AEAD_IMP_IV_SZ,
ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
AesCcmEncrypt(ssl->encrypt.aes,
out + AEAD_EXP_IV_SZ, input + AEAD_EXP_IV_SZ,
sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
nonce, AEAD_NONCE_SZ,
out + sz - AEAD_AUTH_TAG_SZ, AEAD_AUTH_TAG_SZ,
additional, AEAD_AUTH_DATA_SZ);
@ -3118,14 +3168,14 @@ static INLINE int Decrypt(CYASSL* ssl, byte* plain, const byte* input,
additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
c16toa(sz - AES_GCM_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
c16toa(sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
additional + AEAD_LEN_OFFSET);
XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AES_GCM_IMP_IV_SZ);
XMEMCPY(nonce + AES_GCM_IMP_IV_SZ, input, AES_GCM_EXP_IV_SZ);
XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
if (AesGcmDecrypt(ssl->decrypt.aes,
plain + AES_GCM_EXP_IV_SZ,
input + AES_GCM_EXP_IV_SZ,
sz - AES_GCM_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
plain + AEAD_EXP_IV_SZ,
input + AEAD_EXP_IV_SZ,
sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
nonce, AEAD_NONCE_SZ,
input + sz - AEAD_AUTH_TAG_SZ, AEAD_AUTH_TAG_SZ,
additional, AEAD_AUTH_DATA_SZ) < 0) {
@ -3138,6 +3188,42 @@ static INLINE int Decrypt(CYASSL* ssl, byte* plain, const byte* input,
}
#endif
#ifdef HAVE_AESCCM
case aes_ccm:
{
byte additional[AES_BLOCK_SIZE];
byte nonce[AEAD_NONCE_SZ];
XMEMSET(additional, 0, AES_BLOCK_SIZE);
/* sequence number field is 64-bits, we only use 32-bits */
c32toa(GetSEQIncrement(ssl, 1), additional + AEAD_SEQ_OFFSET);
additional[AEAD_TYPE_OFFSET] = ssl->curRL.type;
additional[AEAD_VMAJ_OFFSET] = ssl->curRL.pvMajor;
additional[AEAD_VMIN_OFFSET] = ssl->curRL.pvMinor;
c16toa(sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
additional + AEAD_LEN_OFFSET);
XMEMCPY(nonce, ssl->keys.aead_dec_imp_IV, AEAD_IMP_IV_SZ);
XMEMCPY(nonce + AEAD_IMP_IV_SZ, input, AEAD_EXP_IV_SZ);
if (AesCcmDecrypt(ssl->decrypt.aes,
plain + AEAD_EXP_IV_SZ,
input + AEAD_EXP_IV_SZ,
sz - AEAD_EXP_IV_SZ - AEAD_AUTH_TAG_SZ,
nonce, AEAD_NONCE_SZ,
input + sz - AEAD_AUTH_TAG_SZ, AEAD_AUTH_TAG_SZ,
additional, AEAD_AUTH_DATA_SZ) < 0) {
/* XXX HERE!@ */
SendAlert(ssl, alert_fatal, bad_record_mac);
XMEMSET(nonce, 0, AEAD_NONCE_SZ);
return VERIFY_MAC_ERROR;
}
XMEMSET(nonce, 0, AEAD_NONCE_SZ);
break;
}
#endif
#ifdef HAVE_HC128
case hc128:
Hc128_Process(ssl->decrypt.hc128, plain, input, sz);
@ -3218,7 +3304,7 @@ static int DecryptMessage(CYASSL* ssl, byte* input, word32 sz, word32* idx)
if (ssl->options.tls1_1 && ssl->specs.cipher_type == block)
*idx += ssl->specs.block_size; /* go past TLSv1.1 IV */
if (ssl->specs.cipher_type == aead)
*idx += AES_GCM_EXP_IV_SZ;
*idx += AEAD_EXP_IV_SZ;
}
return decryptResult;
@ -3530,7 +3616,7 @@ int DoApplicationData(CYASSL* ssl, byte* input, word32* inOutIdx)
}
}
else if (ssl->specs.cipher_type == aead) {
ivExtra = AES_GCM_EXP_IV_SZ;
ivExtra = AEAD_EXP_IV_SZ;
digestSz = AEAD_AUTH_TAG_SZ;
}
@ -4168,11 +4254,11 @@ static int BuildMessage(CYASSL* ssl, byte* output, const byte* input, int inSz,
sz += pad;
}
#ifdef BUILD_AESGCM
#ifdef HAVE_AEAD
if (ssl->specs.cipher_type == aead) {
ivSz = AES_GCM_EXP_IV_SZ;
ivSz = AEAD_EXP_IV_SZ;
sz += (ivSz + 16 - digestSz);
XMEMCPY(iv, ssl->keys.aead_exp_IV, AES_GCM_EXP_IV_SZ);
XMEMCPY(iv, ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
}
#endif
size = (word16)(sz - headerSz); /* include mac and digest */
@ -5082,6 +5168,14 @@ const char* const cipher_names[] =
"NTRU-AES256-SHA",
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8_SHA256
"AES128-CCM-8-SHA256",
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8_SHA384
"AES256-CCM-8-SHA384",
#endif
#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
"ECDHE-RSA-AES128-SHA",
#endif
@ -5302,6 +5396,14 @@ int cipher_name_idx[] =
TLS_NTRU_RSA_WITH_AES_256_CBC_SHA,
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8_SHA256
TLS_RSA_WITH_AES_128_CCM_8_SHA256,
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8_SHA384
TLS_RSA_WITH_AES_256_CCM_8_SHA384,
#endif
#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
#endif
@ -5474,7 +5576,7 @@ int SetCipherList(Suites* s, const char* list)
for (i = 0; i < suiteSz; i++)
if (XSTRNCMP(name, cipher_names[i], sizeof(name)) == 0) {
if (XSTRSTR(name, "EC"))
if (XSTRSTR(name, "EC") || XSTRSTR(name, "CCM"))
s->suites[idx++] = ECC_BYTE; /* ECC suite */
else
s->suites[idx++] = 0x00; /* normal */
@ -7291,6 +7393,14 @@ int SetCipherList(Suites* s, const char* list)
return 1;
break;
case TLS_RSA_WITH_AES_128_CCM_8_SHA256 :
case TLS_RSA_WITH_AES_256_CCM_8_SHA384 :
if (requirement == REQUIRES_RSA)
return 1;
if (requirement == REQUIRES_RSA_SIG)
return 1;
break;
default:
CYASSL_MSG("Unsupported cipher suite, CipherRequires ECC");
return 0;

103
src/keys.c
View File

@ -37,12 +37,13 @@
int SetCipherSpecs(CYASSL* ssl)
{
#ifdef HAVE_ECC
/* ECC extensions */
/* ECC extensions, or AES-CCM */
if (ssl->options.cipherSuite0 == ECC_BYTE) {
switch (ssl->options.cipherSuite) {
#ifdef HAVE_ECC
#ifdef BUILD_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA :
ssl->specs.bulk_cipher_algorithm = aes;
@ -327,7 +328,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -344,7 +345,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -361,7 +362,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -378,7 +379,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -395,7 +396,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 1;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -412,7 +413,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 1;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -429,7 +430,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 1;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -446,17 +447,49 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 1;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
#endif /* HAVE_ECC */
#ifdef BUILD_TLS_RSA_WITH_AES_128_CCM_8_SHA256
case TLS_RSA_WITH_AES_128_CCM_8_SHA256 :
ssl->specs.bulk_cipher_algorithm = aes_ccm;
ssl->specs.cipher_type = aead;
ssl->specs.mac_algorithm = sha256_mac;
ssl->specs.kea = rsa_kea;
ssl->specs.sig_algo = rsa_sa_algo;
ssl->specs.hash_size = SHA256_DIGEST_SIZE;
ssl->specs.pad_size = PAD_SHA;
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
#ifdef BUILD_TLS_RSA_WITH_AES_256_CCM_8_SHA384
case TLS_RSA_WITH_AES_256_CCM_8_SHA384 :
ssl->specs.bulk_cipher_algorithm = aes_ccm;
ssl->specs.cipher_type = aead;
ssl->specs.mac_algorithm = sha384_mac;
ssl->specs.kea = rsa_kea;
ssl->specs.sig_algo = rsa_sa_algo;
ssl->specs.hash_size = SHA384_DIGEST_SIZE;
ssl->specs.pad_size = PAD_SHA;
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
default:
CYASSL_MSG("Unsupported cipher suite, SetCipherSpecs ECC");
return UNSUPPORTED_SUITE;
} /* switch */
} /* if */
#endif /* HAVE_ECC */
if (ssl->options.cipherSuite0 != ECC_BYTE) { /* normal suites */
switch (ssl->options.cipherSuite) {
@ -881,7 +914,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -898,7 +931,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -915,7 +948,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_128_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -932,7 +965,7 @@ int SetCipherSpecs(CYASSL* ssl)
ssl->specs.static_ecdh = 0;
ssl->specs.key_size = AES_256_KEY_SIZE;
ssl->specs.block_size = AES_BLOCK_SIZE;
ssl->specs.iv_size = AES_GCM_IMP_IV_SZ;
ssl->specs.iv_size = AEAD_IMP_IV_SZ;
break;
#endif
@ -1146,18 +1179,48 @@ static int SetKeys(Ciphers* enc, Ciphers* dec, Keys* keys, CipherSpecs* specs,
if (side == CLIENT_END) {
AesGcmSetKey(enc->aes, keys->client_write_key, specs->key_size);
XMEMCPY(keys->aead_enc_imp_IV,
keys->client_write_IV, AES_GCM_IMP_IV_SZ);
keys->client_write_IV, AEAD_IMP_IV_SZ);
AesGcmSetKey(dec->aes, keys->server_write_key, specs->key_size);
XMEMCPY(keys->aead_dec_imp_IV,
keys->server_write_IV, AES_GCM_IMP_IV_SZ);
keys->server_write_IV, AEAD_IMP_IV_SZ);
}
else {
AesGcmSetKey(enc->aes, keys->server_write_key, specs->key_size);
XMEMCPY(keys->aead_enc_imp_IV,
keys->server_write_IV, AES_GCM_IMP_IV_SZ);
keys->server_write_IV, AEAD_IMP_IV_SZ);
AesGcmSetKey(dec->aes, keys->client_write_key, specs->key_size);
XMEMCPY(keys->aead_dec_imp_IV,
keys->client_write_IV, AES_GCM_IMP_IV_SZ);
keys->client_write_IV, AEAD_IMP_IV_SZ);
}
enc->setup = 1;
dec->setup = 1;
}
#endif
#ifdef HAVE_AESCCM
if (specs->bulk_cipher_algorithm == aes_ccm) {
enc->aes = (Aes*)XMALLOC(sizeof(Aes), heap, DYNAMIC_TYPE_CIPHER);
if (enc->aes == NULL)
return MEMORY_E;
dec->aes = (Aes*)XMALLOC(sizeof(Aes), heap, DYNAMIC_TYPE_CIPHER);
if (dec->aes == NULL)
return MEMORY_E;
if (side == CLIENT_END) {
AesCcmSetKey(enc->aes, keys->client_write_key, specs->key_size);
XMEMCPY(keys->aead_enc_imp_IV,
keys->client_write_IV, AEAD_IMP_IV_SZ);
AesCcmSetKey(dec->aes, keys->server_write_key, specs->key_size);
XMEMCPY(keys->aead_dec_imp_IV,
keys->server_write_IV, AEAD_IMP_IV_SZ);
}
else {
AesCcmSetKey(enc->aes, keys->server_write_key, specs->key_size);
XMEMCPY(keys->aead_enc_imp_IV,
keys->server_write_IV, AEAD_IMP_IV_SZ);
AesCcmSetKey(dec->aes, keys->client_write_key, specs->key_size);
XMEMCPY(keys->aead_dec_imp_IV,
keys->client_write_IV, AEAD_IMP_IV_SZ);
}
enc->setup = 1;
dec->setup = 1;
@ -1210,7 +1273,7 @@ int StoreKeys(CYASSL* ssl, const byte* keyData)
#ifdef HAVE_AEAD
if (ssl->specs.cipher_type == aead) {
/* Initialize the AES-GCM explicit IV to a random number. */
RNG_GenerateBlock(ssl->rng, ssl->keys.aead_exp_IV, AES_GCM_EXP_IV_SZ);
RNG_GenerateBlock(ssl->rng, ssl->keys.aead_exp_IV, AEAD_EXP_IV_SZ);
}
#endif

5
src/ssl.c
View File

@ -5430,6 +5430,11 @@ int CyaSSL_set_compression(CYASSL* ssl)
case TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 :
return "TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384";
case TLS_RSA_WITH_AES_128_CCM_8_SHA256 :
return "TLS_RSA_WITH_AES_128_CCM_8_SHA256";
case TLS_RSA_WITH_AES_256_CCM_8_SHA384 :
return "TLS_RSA_WITH_AES_256_CCM_8_SHA384";
default:
return "NONE";
}

1
tests/include.am
View File

@ -27,6 +27,7 @@ EXTRA_DIST += tests/test.conf \
tests/test-aesgcm.conf \
tests/test-aesgcm-ecc.conf \
tests/test-aesgcm-openssl.conf \
tests/test-aesccm.conf \
tests/test-dtls.conf \
tests/test-rabbit.conf \
tests/test-null.conf \

11
tests/suites.c
View File

@ -370,6 +370,17 @@ int SuiteTest(void)
}
#endif
#if defined(HAVE_AESCCM)
/* add aesccm extra suites */
strcpy(argv0[1], "tests/test-aesccm.conf");
printf("starting aesccm extra cipher suite tests\n");
test_harness(&args);
if (args.return_code != 0) {
printf("error from script %d\n", args.return_code);
exit(EXIT_FAILURE);
}
#endif
#ifdef CYASSL_DTLS
/* add dtls extra suites */
strcpy(argv0[1], "tests/test-dtls.conf");

16
tests/test-aesccm.conf Normal file
View File

@ -0,0 +1,16 @@
# server TLSv1.2 AES128-CCM-8-SHA256
-v 3
-l AES128-CCM-8-SHA256
# client TLSv1.2 AES128-CCM-8-SHA256
-v 3
-l AES128-CCM-8-SHA256
# server TLSv1.2 AES256-CCM-8-SHA384
-v 3
-l AES256-CCM-8-SHA384
# client TLSv1.2 AES256-CCM-8-SHA384
-v 3
-l AES256-CCM-8-SHA384