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/*
* (C) 2017 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#include <botan/tls_algos.h>
#include <botan/exceptn.h>
namespace Botan {
namespace TLS {
std::string kdf_algo_to_string(KDF_Algo algo)
{
switch(algo)
{
case KDF_Algo::SHA_1:
return "SHA-1";
case KDF_Algo::SHA_256:
return "SHA-256";
case KDF_Algo::SHA_384:
return "SHA-384";
}
throw Invalid_State("kdf_algo_to_string unknown enum value");
}
std::string kex_method_to_string(Kex_Algo method)
{
switch(method)
{
case Kex_Algo::STATIC_RSA:
return "RSA";
case Kex_Algo::DH:
return "DH";
case Kex_Algo::ECDH:
return "ECDH";
case Kex_Algo::CECPQ1:
return "CECPQ1";
case Kex_Algo::PSK:
return "PSK";
case Kex_Algo::DHE_PSK:
return "DHE_PSK";
case Kex_Algo::ECDHE_PSK:
return "ECDHE_PSK";
}
throw Invalid_State("kex_method_to_string unknown enum value");
}
Kex_Algo kex_method_from_string(const std::string& str)
{
if(str == "RSA")
return Kex_Algo::STATIC_RSA;
if(str == "DH")
return Kex_Algo::DH;
if(str == "ECDH")
return Kex_Algo::ECDH;
if(str == "CECPQ1")
return Kex_Algo::CECPQ1;
if(str == "PSK")
return Kex_Algo::PSK;
if(str == "DHE_PSK")
return Kex_Algo::DHE_PSK;
if(str == "ECDHE_PSK")
return Kex_Algo::ECDHE_PSK;
throw Invalid_Argument("Unknown kex method " + str);
}
std::string auth_method_to_string(Auth_Method method)
{
switch(method)
{
case Auth_Method::RSA:
return "RSA";
case Auth_Method::ECDSA:
return "ECDSA";
case Auth_Method::IMPLICIT:
return "IMPLICIT";
}
throw Invalid_State("auth_method_to_string unknown enum value");
}
Auth_Method auth_method_from_string(const std::string& str)
{
if(str == "RSA")
return Auth_Method::RSA;
if(str == "ECDSA")
return Auth_Method::ECDSA;
if(str == "IMPLICIT")
return Auth_Method::IMPLICIT;
throw Invalid_Argument("Bad signature method " + str);
}
bool group_param_is_dh(Group_Params group)
{
uint16_t group_id = static_cast<uint16_t>(group);
return (group_id >= 256 && group_id < 512);
}
Group_Params group_param_from_string(const std::string& group_name)
{
if(group_name == "secp256r1")
return Group_Params::SECP256R1;
if(group_name == "secp384r1")
return Group_Params::SECP384R1;
if(group_name == "secp521r1")
return Group_Params::SECP521R1;
if(group_name == "brainpool256r1")
return Group_Params::BRAINPOOL256R1;
if(group_name == "brainpool384r1")
return Group_Params::BRAINPOOL384R1;
if(group_name == "brainpool512r1")
return Group_Params::BRAINPOOL512R1;
if(group_name == "x25519")
return Group_Params::X25519;
if(group_name == "ffdhe/ietf/2048")
return Group_Params::FFDHE_2048;
if(group_name == "ffdhe/ietf/3072")
return Group_Params::FFDHE_3072;
if(group_name == "ffdhe/ietf/4096")
return Group_Params::FFDHE_4096;
if(group_name == "ffdhe/ietf/6144")
return Group_Params::FFDHE_6144;
if(group_name == "ffdhe/ietf/8192")
return Group_Params::FFDHE_8192;
return Group_Params::NONE; // unknown
}
std::string group_param_to_string(Group_Params group)
{
switch(group)
{
case Group_Params::SECP256R1:
return "secp256r1";
case Group_Params::SECP384R1:
return "secp384r1";
case Group_Params::SECP521R1:
return "secp521r1";
case Group_Params::BRAINPOOL256R1:
return "brainpool256r1";
case Group_Params::BRAINPOOL384R1:
return "brainpool384r1";
case Group_Params::BRAINPOOL512R1:
return "brainpool512r1";
case Group_Params::X25519:
return "x25519";
case Group_Params::FFDHE_2048:
return "ffdhe/ietf/2048";
case Group_Params::FFDHE_3072:
return "ffdhe/ietf/3072";
case Group_Params::FFDHE_4096:
return "ffdhe/ietf/4096";
case Group_Params::FFDHE_6144:
return "ffdhe/ietf/6144";
case Group_Params::FFDHE_8192:
return "ffdhe/ietf/8192";
default:
return "";
}
}
std::string hash_function_of_scheme(Signature_Scheme scheme)
{
switch(scheme)
{
case Signature_Scheme::ECDSA_SHA1:
case Signature_Scheme::RSA_PKCS1_SHA1:
return "SHA-1";
case Signature_Scheme::ECDSA_SHA256:
case Signature_Scheme::RSA_PKCS1_SHA256:
case Signature_Scheme::RSA_PSS_SHA256:
return "SHA-256";
case Signature_Scheme::ECDSA_SHA384:
case Signature_Scheme::RSA_PKCS1_SHA384:
case Signature_Scheme::RSA_PSS_SHA384:
return "SHA-384";
case Signature_Scheme::ECDSA_SHA512:
case Signature_Scheme::RSA_PKCS1_SHA512:
case Signature_Scheme::RSA_PSS_SHA512:
return "SHA-512";
case Signature_Scheme::EDDSA_25519:
case Signature_Scheme::EDDSA_448:
return "Pure";
case Signature_Scheme::NONE:
return "";
}
throw Invalid_State("hash_function_of_scheme: Unknown signature algorithm enum");
}
const std::vector<Signature_Scheme>& all_signature_schemes()
{
/*
* This is ordered in some approximate order of preference
*/
static const std::vector<Signature_Scheme> all_schemes = {
//Signature_Scheme::EDDSA_448,
//Signature_Scheme::EDDSA_25519,
Signature_Scheme::RSA_PSS_SHA384,
Signature_Scheme::RSA_PSS_SHA256,
Signature_Scheme::RSA_PSS_SHA512,
Signature_Scheme::RSA_PKCS1_SHA384,
Signature_Scheme::RSA_PKCS1_SHA512,
Signature_Scheme::RSA_PKCS1_SHA256,
Signature_Scheme::ECDSA_SHA384,
Signature_Scheme::ECDSA_SHA512,
Signature_Scheme::ECDSA_SHA256,
Signature_Scheme::RSA_PKCS1_SHA1,
Signature_Scheme::ECDSA_SHA1,
};
return all_schemes;
}
bool signature_scheme_is_known(Signature_Scheme scheme)
{
switch(scheme)
{
case Signature_Scheme::RSA_PKCS1_SHA1:
case Signature_Scheme::RSA_PKCS1_SHA256:
case Signature_Scheme::RSA_PKCS1_SHA384:
case Signature_Scheme::RSA_PKCS1_SHA512:
case Signature_Scheme::RSA_PSS_SHA256:
case Signature_Scheme::RSA_PSS_SHA384:
case Signature_Scheme::RSA_PSS_SHA512:
case Signature_Scheme::ECDSA_SHA1:
case Signature_Scheme::ECDSA_SHA256:
case Signature_Scheme::ECDSA_SHA384:
case Signature_Scheme::ECDSA_SHA512:
return true;
default:
return false;
}
}
std::string signature_algorithm_of_scheme(Signature_Scheme scheme)
{
switch(scheme)
{
case Signature_Scheme::RSA_PKCS1_SHA1:
case Signature_Scheme::RSA_PKCS1_SHA256:
case Signature_Scheme::RSA_PKCS1_SHA384:
case Signature_Scheme::RSA_PKCS1_SHA512:
case Signature_Scheme::RSA_PSS_SHA256:
case Signature_Scheme::RSA_PSS_SHA384:
case Signature_Scheme::RSA_PSS_SHA512:
return "RSA";
case Signature_Scheme::ECDSA_SHA1:
case Signature_Scheme::ECDSA_SHA256:
case Signature_Scheme::ECDSA_SHA384:
case Signature_Scheme::ECDSA_SHA512:
return "ECDSA";
case Signature_Scheme::EDDSA_25519:
return "Ed25519";
case Signature_Scheme::EDDSA_448:
return "Ed448";
case Signature_Scheme::NONE:
return "";
}
throw Invalid_State("signature_algorithm_of_scheme: Unknown signature algorithm enum");
}
std::string sig_scheme_to_string(Signature_Scheme scheme)
{
switch(scheme)
{
case Signature_Scheme::RSA_PKCS1_SHA1:
return "RSA_PKCS1_SHA1";
case Signature_Scheme::RSA_PKCS1_SHA256:
return "RSA_PKCS1_SHA256";
case Signature_Scheme::RSA_PKCS1_SHA384:
return "RSA_PKCS1_SHA384";
case Signature_Scheme::RSA_PKCS1_SHA512:
return "RSA_PKCS1_SHA512";
case Signature_Scheme::ECDSA_SHA1:
return "ECDSA_SHA1";
case Signature_Scheme::ECDSA_SHA256:
return "ECDSA_SHA256";
case Signature_Scheme::ECDSA_SHA384:
return "ECDSA_SHA384";
case Signature_Scheme::ECDSA_SHA512:
return "ECDSA_SHA512";
case Signature_Scheme::RSA_PSS_SHA256:
return "RSA_PSS_SHA256";
case Signature_Scheme::RSA_PSS_SHA384:
return "RSA_PSS_SHA384";
case Signature_Scheme::RSA_PSS_SHA512:
return "RSA_PSS_SHA512";
case Signature_Scheme::EDDSA_25519:
return "EDDSA_25519";
case Signature_Scheme::EDDSA_448:
return "EDDSA_448";
case Signature_Scheme::NONE:
return "";
}
throw Invalid_State("sig_scheme_to_string: Unknown signature algorithm enum");
}
std::string padding_string_for_scheme(Signature_Scheme scheme)
{
switch(scheme)
{
case Signature_Scheme::RSA_PKCS1_SHA1:
return "EMSA_PKCS1(SHA-1)";
case Signature_Scheme::RSA_PKCS1_SHA256:
return "EMSA_PKCS1(SHA-256)";
case Signature_Scheme::RSA_PKCS1_SHA384:
return "EMSA_PKCS1(SHA-384)";
case Signature_Scheme::RSA_PKCS1_SHA512:
return "EMSA_PKCS1(SHA-512)";
case Signature_Scheme::ECDSA_SHA1:
return "EMSA1(SHA-1)";
case Signature_Scheme::ECDSA_SHA256:
return "EMSA1(SHA-256)";
case Signature_Scheme::ECDSA_SHA384:
return "EMSA1(SHA-384)";
case Signature_Scheme::ECDSA_SHA512:
return "EMSA1(SHA-512)";
case Signature_Scheme::RSA_PSS_SHA256:
return "PSSR(SHA-256,MGF1,32)";
case Signature_Scheme::RSA_PSS_SHA384:
return "PSSR(SHA-384,MGF1,48)";
case Signature_Scheme::RSA_PSS_SHA512:
return "PSSR(SHA-512,MGF1,64)";
case Signature_Scheme::EDDSA_25519:
return "Pure";
case Signature_Scheme::EDDSA_448:
return "Pure";
case Signature_Scheme::NONE:
return "";
}
throw Invalid_State("padding_string_for_scheme: Unknown signature algorithm enum");
}
}
}
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