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/*
* TLS Cipher Suites
* (C) 2004-2010,2012 Jack Lloyd
*
* Released under the terms of the Botan license
*/
#include <botan/tls_suites.h>
#include <botan/parsing.h>
#include <sstream>
#include <stdexcept>
namespace Botan {
namespace TLS {
/**
* Convert an SSL/TLS ciphersuite to algorithm fields
*/
Ciphersuite Ciphersuite::lookup_ciphersuite(u16bit suite)
{
switch(suite)
{
// RSA ciphersuites
case TLS_RSA_WITH_AES_128_CBC_SHA:
return Ciphersuite("RSA", "", "SHA-1", "AES-128", 16);
case TLS_RSA_WITH_AES_256_CBC_SHA:
return Ciphersuite("RSA", "", "SHA-1", "AES-256", 32);
case TLS_RSA_WITH_AES_128_CBC_SHA256:
return Ciphersuite("RSA", "", "SHA-256", "AES-128", 16);
case TLS_RSA_WITH_AES_256_CBC_SHA256:
return Ciphersuite("RSA", "", "SHA-256", "AES-256", 32);
case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
return Ciphersuite("RSA", "", "SHA-1", "3DES", 24);
case TLS_RSA_WITH_RC4_128_SHA:
return Ciphersuite("RSA", "", "SHA-1", "ARC4", 16);
case TLS_RSA_WITH_RC4_128_MD5:
return Ciphersuite("RSA", "", "MD5", "ARC4", 16);
case TLS_RSA_WITH_SEED_CBC_SHA:
return Ciphersuite("RSA", "", "SHA-1", "SEED", 16);
// DH/DSS ciphersuites
case TLS_DHE_DSS_WITH_AES_128_CBC_SHA:
return Ciphersuite("DSA", "DH", "SHA-1", "AES-128", 16);
case TLS_DHE_DSS_WITH_AES_256_CBC_SHA:
return Ciphersuite("DSA", "DH", "SHA-1", "AES-256", 32);
case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256:
return Ciphersuite("DSA", "DH", "SHA-256", "AES-128", 16);
case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256:
return Ciphersuite("DSA", "DH", "SHA-256", "AES-256", 32);
case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA:
return Ciphersuite("DSA", "DH", "SHA-1", "3DES", 24);
case TLS_DHE_DSS_WITH_RC4_128_SHA:
return Ciphersuite("DSA", "DH", "SHA-1", "ARC4", 16);
case TLS_DHE_DSS_WITH_SEED_CBC_SHA:
return Ciphersuite("DSA", "DH", "SHA-1", "SEED", 16);
// DH/RSA ciphersuites
case TLS_DHE_RSA_WITH_AES_128_CBC_SHA:
return Ciphersuite("RSA", "DH", "SHA-1", "AES-128", 16);
case TLS_DHE_RSA_WITH_AES_256_CBC_SHA:
return Ciphersuite("RSA", "DH", "SHA-1", "AES-256", 32);
case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256:
return Ciphersuite("RSA", "DH", "SHA-256", "AES-128", 16);
case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256:
return Ciphersuite("RSA", "DH", "SHA-256", "AES-256", 32);
case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA:
return Ciphersuite("RSA", "DH", "SHA-1", "3DES", 24);
case TLS_DHE_RSA_WITH_SEED_CBC_SHA:
return Ciphersuite("RSA", "DH", "SHA-1", "SEED", 16);
// ECDH/RSA ciphersuites
case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA:
return Ciphersuite("RSA", "ECDH", "SHA-1", "AES-128", 16);
case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA:
return Ciphersuite("RSA", "ECDH", "SHA-1", "AES-256", 32);
case TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA:
return Ciphersuite("RSA", "ECDH", "SHA-1", "3DES", 24);
case TLS_ECDHE_RSA_WITH_RC4_128_SHA:
return Ciphersuite("RSA", "ECDH", "SHA-1", "ARC4", 16);
// SRP/RSA ciphersuites
case TLS_SRP_SHA_RSA_WITH_AES_128_SHA:
return Ciphersuite("RSA", "SRP/SHA-1", "SHA-1", "AES-128", 16);
case TLS_SRP_SHA_RSA_WITH_AES_256_SHA:
return Ciphersuite("RSA", "SRP/SHA-1", "SHA-1", "AES-256", 32);
case TLS_SRP_SHA_RSA_WITH_3DES_EDE_SHA:
return Ciphersuite("RSA", "SRP/SHA-1", "SHA-1", "3DES", 24);
// SRP/DSA ciphersuites
case TLS_SRP_SHA_DSS_WITH_AES_128_SHA:
return Ciphersuite("DSA", "SRP/SHA-1", "SHA-1", "AES-128", 16);
case TLS_SRP_SHA_DSS_WITH_AES_256_SHA:
return Ciphersuite("DSA", "SRP/SHA-1", "SHA-1", "AES-256", 32);
case TLS_SRP_SHA_DSS_WITH_3DES_EDE_SHA:
return Ciphersuite("DSA", "SRP/SHA-1", "SHA-1", "3DES", 24);
// ECDH/ECDSA ciphersuites
case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA:
return Ciphersuite("ECDSA", "ECDH", "SHA-1", "AES-128", 16);
case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA:
return Ciphersuite("ECDSA", "ECDH", "SHA-1", "AES-256", 32);
case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256:
return Ciphersuite("ECDSA", "ECDH", "SHA-256", "AES-128", 16);
case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384:
return Ciphersuite("ECDSA", "ECDH", "SHA-384", "AES-256", 32);
case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256:
return Ciphersuite("ECDSA", "ECDH", "SHA-256", "AES-128", 16);
case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384:
return Ciphersuite("ECDSA", "ECDH", "SHA-384", "AES-256", 32);
case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA:
return Ciphersuite("ECDSA", "ECDH", "SHA-1", "ARC4", 16);
case TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA:
return Ciphersuite("ECDSA", "ECDH", "SHA-1", "3DES", 24);
default:
return Ciphersuite(); // some unknown ciphersuite
}
}
std::string Ciphersuite::to_string() const
{
if(m_cipher_keylen == 0)
throw std::runtime_error("Ciphersuite::to_string - no value set");
std::ostringstream out;
out << "TLS_";
if(kex_algo() == "DH")
out << "DHE";
else if(kex_algo() == "ECDH")
out << "ECDHE";
else if(kex_algo() == "SRP/SHA-1")
out << "SRP_SHA";
else if(kex_algo() != "")
out << kex_algo();
if(kex_algo() != "")
out << '_';
if(sig_algo() == "DSA")
out << "DSS";
else
out << sig_algo();
out << "_WITH_";
if(cipher_algo() == "ARC4")
{
out << "RC4_128_";
}
else
{
if(cipher_algo() == "3DES")
out << "3DES_EDE";
else
out << replace_char(cipher_algo(), '-', '_');
out << "_CBC_";
}
if(mac_algo() == "SHA-1")
out << "SHA";
else if(mac_algo() == "SHA-256")
out << "SHA256";
else if(mac_algo() == "SHA-384")
out << "SHA384";
else
out << mac_algo();
return out.str();
}
Ciphersuite::Ciphersuite(const std::string& sig_algo,
const std::string& kex_algo,
const std::string& mac_algo,
const std::string& cipher_algo,
size_t cipher_algo_keylen) :
m_sig_algo(sig_algo),
m_kex_algo(kex_algo),
m_mac_algo(mac_algo),
m_cipher_algo(cipher_algo),
m_cipher_keylen(cipher_algo_keylen)
{
}
}
}
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