/* Same function for block and iv size */
uint8_t sslCipherSuiteGetSymmetricCipherBlockIvSize(SSLCipherSuite cipherSuite) {
SSL_CipherAlgorithm alg = sslCipherSuiteGetSymmetricCipherAlgorithm(cipherSuite);
switch (alg) {
case SSL_CipherAlgorithmNull:
case SSL_CipherAlgorithmRC4_128:
return 0;
case SSL_CipherAlgorithmDES_CBC:
case SSL_CipherAlgorithm3DES_CBC:
case SSL_CipherAlgorithmRC2_128:
return 8;
case SSL_CipherAlgorithmAES_128_CBC:
case SSL_CipherAlgorithmAES_128_GCM:
case SSL_CipherAlgorithmAES_256_CBC:
case SSL_CipherAlgorithmAES_256_GCM:
return 16;
default:
return 0;
}
}
static const SSLSymmetricCipher *sslCipherSuiteGetSymmetricCipher(uint16_t selectedCipher)
{
SSL_CipherAlgorithm alg = sslCipherSuiteGetSymmetricCipherAlgorithm(selectedCipher);
switch(alg) {
case SSL_CipherAlgorithmNull:
return &SSLCipherNull;
#if ENABLE_RC2
case SSL_CipherAlgorithmRC2_128:
return &SSLCipherRC2_128;
#endif
#if ENABLE_RC4
case SSL_CipherAlgorithmRC4_128:
return &SSLCipherRC4_128;
#endif
#if ENABLE_DES
case SSL_CipherAlgorithmDES_CBC:
return &SSLCipherDES_CBC;
#endif
case SSL_CipherAlgorithm3DES_CBC:
return &SSLCipher3DES_CBC;
case SSL_CipherAlgorithmAES_128_CBC:
return &SSLCipherAES_128_CBC;
case SSL_CipherAlgorithmAES_256_CBC:
return &SSLCipherAES_256_CBC;
#if ENABLE_AES_GCM
case SSL_CipherAlgorithmAES_128_GCM:
return &SSLCipherAES_128_GCM;
case SSL_CipherAlgorithmAES_256_GCM:
return &SSLCipherAES_256_GCM;
#endif
default:
check(0);
return &SSLCipherNull;
}
}
