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nss: do not enable AES cipher-suites by default 

... but allow them to be enabled/disabled explicitly.  The default
policy should be maintained at the NSS level.
This commit is contained in:
Kamil Dudka 2014-03-07 13:02:03 +01:00
parent 4c599b9d2d
commit b4f6cd46eb
1 changed files with 4 additions and 23 deletions
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27
lib/vtls/nss.c
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@ -123,6 +123,10 @@ static const cipher_s cipherlist[] = {
{"rsa_des_56_sha", TLS_RSA_EXPORT1024_WITH_DES_CBC_SHA},
{"rsa_rc4_56_sha", TLS_RSA_EXPORT1024_WITH_RC4_56_SHA},
/* AES ciphers. */
{"dhe_dss_aes_128_cbc_sha", TLS_DHE_DSS_WITH_AES_128_CBC_SHA},
{"dhe_dss_aes_256_cbc_sha", TLS_DHE_DSS_WITH_AES_256_CBC_SHA},
{"dhe_rsa_aes_128_cbc_sha", TLS_DHE_RSA_WITH_AES_128_CBC_SHA},
{"dhe_rsa_aes_256_cbc_sha", TLS_DHE_RSA_WITH_AES_256_CBC_SHA},
{"rsa_aes_128_sha", TLS_RSA_WITH_AES_128_CBC_SHA},
{"rsa_aes_256_sha", TLS_RSA_WITH_AES_256_CBC_SHA},
/* ECC ciphers. */
@ -153,18 +157,6 @@ static const cipher_s cipherlist[] = {
{"ecdh_anon_aes_256_sha", TLS_ECDH_anon_WITH_AES_256_CBC_SHA},
};
/* following ciphers are new in NSS 3.4 and not enabled by default, therefore
they are enabled explicitly */
static const int enable_ciphers_by_default[] = {
TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
TLS_DHE_DSS_WITH_AES_256_CBC_SHA,
TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
TLS_RSA_WITH_AES_128_CBC_SHA,
TLS_RSA_WITH_AES_256_CBC_SHA,
SSL_NULL_WITH_NULL_NULL
};
static const char* pem_library = "libnsspem.so";
SECMODModule* mod = NULL;
@ -1294,7 +1286,6 @@ CURLcode Curl_nss_connect(struct connectdata *conn, int sockindex)
curl_socket_t sockfd = conn->sock[sockindex];
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
CURLcode curlerr;
const int *cipher_to_enable;
PRSocketOptionData sock_opt;
long time_left;
PRUint32 timeout;
@ -1396,16 +1387,6 @@ CURLcode Curl_nss_connect(struct connectdata *conn, int sockindex)
/* reset the flag to avoid an infinite loop */
data->state.ssl_connect_retry = FALSE;
/* enable all ciphers from enable_ciphers_by_default */
cipher_to_enable = enable_ciphers_by_default;
while(SSL_NULL_WITH_NULL_NULL != *cipher_to_enable) {
if(SSL_CipherPrefSet(model, *cipher_to_enable, PR_TRUE) != SECSuccess) {
curlerr = CURLE_SSL_CIPHER;
goto error;
}
cipher_to_enable++;
}
if(data->set.ssl.cipher_list) {
if(set_ciphers(data, model, data->set.ssl.cipher_list) != SECSuccess) {
curlerr = CURLE_SSL_CIPHER;