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mailiverse/cpp/Lib/xcode-botan/Botan-1.10.3/checks/ecdsa.cpp
Timothy Prepscius e803b91b5c adds the cpp files
2013-07-25 22:51:23 -04:00

440 lines
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/******************************************************
* ECDSA tests *
* *
* (C) 2007 Falko Strenzke *
* Manuel Hartl *
* 2008 Jack Lloyd *
******************************************************/
#include "validate.h"
#if defined(BOTAN_HAS_ECDSA)
#include <botan/botan.h>
#include <botan/pubkey.h>
#include <botan/ecdsa.h>
#include <botan/rsa.h>
#include <botan/x509cert.h>
#include <botan/oids.h>
#include <iostream>
#include <fstream>
#include <memory>
#include "common.h"
using namespace Botan;
#define TEST_DATA_DIR "checks/ecc_testdata"
#define CHECK_MESSAGE(expr, print) try { if(!(expr)) std::cout << print << "\n"; } catch(std::exception& e) { std::cout << __FUNCTION__ << ": " << e.what() << "\n"; }
#define CHECK(expr) try { if(!(expr)) std::cout << #expr << "\n"; } catch(std::exception& e) { std::cout << __FUNCTION__ << ": " << e.what() << "\n"; }
namespace {
std::string to_hex(const SecureVector<byte>& bin)
{
return hex_encode(&bin[0], bin.size());
}
/**
* Tests whether the the signing routine will work correctly in case
* the integer e that is constructed from the message (thus the hash
* value) is larger than n, the order of the base point. Tests the
* signing function of the pk signer object */
void test_hash_larger_than_n(RandomNumberGenerator& rng)
{
std::cout << "." << std::flush;
EC_Group dom_pars(OID("1.3.132.0.8")); // secp160r1
// n = 0x0100000000000000000001f4c8f927aed3ca752257 (21 bytes)
// -> shouldn't work with SHA224 which outputs 28 bytes
ECDSA_PrivateKey priv_key(rng, dom_pars);
SecureVector<byte> message(20);
for(size_t i = 0; i != message.size(); ++i)
message[i] = i;
PK_Signer pk_signer_160(priv_key, "EMSA1_BSI(SHA-1)");
PK_Verifier pk_verifier_160(priv_key, "EMSA1_BSI(SHA-1)");
PK_Signer pk_signer_224(priv_key, "EMSA1_BSI(SHA-224)");
// Verify we can sign and verify with SHA-160
SecureVector<byte> signature_160 = pk_signer_160.sign_message(message, rng);
CHECK(pk_verifier_160.verify_message(message, signature_160));
bool signature_failed = false;
try
{
SecureVector<byte> signature_224 = pk_signer_224.sign_message(message, rng);
}
catch(Encoding_Error)
{
signature_failed = true;
}
CHECK(signature_failed);
// now check that verification alone fails
// sign it with the normal EMSA1
PK_Signer pk_signer(priv_key, "EMSA1(SHA-224)");
SecureVector<byte> signature = pk_signer.sign_message(message, rng);
PK_Verifier pk_verifier(priv_key, "EMSA1_BSI(SHA-224)");
// verify against EMSA1_BSI
if(pk_verifier.verify_message(message, signature))
std::cout << "Corrupt ECDSA signature verified, should not have\n";
}
void test_decode_ecdsa_X509()
{
std::cout << "." << std::flush;
X509_Certificate cert(TEST_DATA_DIR "/CSCA.CSCA.csca-germany.1.crt");
CHECK_MESSAGE(OIDS::lookup(cert.signature_algorithm().oid) == "ECDSA/EMSA1(SHA-224)", "error reading signature algorithm from x509 ecdsa certificate");
CHECK_MESSAGE(to_hex(cert.serial_number()) == "01", "error reading serial from x509 ecdsa certificate");
CHECK_MESSAGE(to_hex(cert.authority_key_id()) == "0096452DE588F966C4CCDF161DD1F3F5341B71E7", "error reading authority key id from x509 ecdsa certificate");
CHECK_MESSAGE(to_hex(cert.subject_key_id()) == "0096452DE588F966C4CCDF161DD1F3F5341B71E7", "error reading Subject key id from x509 ecdsa certificate");
std::auto_ptr<X509_PublicKey> pubkey(cert.subject_public_key());
bool ver_ec = cert.check_signature(*pubkey);
CHECK_MESSAGE(ver_ec, "could not positively verify correct selfsigned x509-ecdsa certificate");
}
void test_decode_ver_link_SHA256()
{
std::cout << "." << std::flush;
X509_Certificate root_cert(TEST_DATA_DIR "/root2_SHA256.cer");
X509_Certificate link_cert(TEST_DATA_DIR "/link_SHA256.cer");
std::auto_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
bool ver_ec = link_cert.check_signature(*pubkey);
CHECK_MESSAGE(ver_ec, "could not positively verify correct SHA256 link x509-ecdsa certificate");
}
void test_decode_ver_link_SHA1()
{
std::cout << "." << std::flush;
X509_Certificate root_cert(TEST_DATA_DIR "/root_SHA1.163.crt");
X509_Certificate link_cert(TEST_DATA_DIR "/link_SHA1.166.crt");
std::auto_ptr<X509_PublicKey> pubkey(root_cert.subject_public_key());
bool ver_ec = link_cert.check_signature(*pubkey);
CHECK_MESSAGE(ver_ec, "could not positively verify correct SHA1 link x509-ecdsa certificate");
}
void test_sign_then_ver(RandomNumberGenerator& rng)
{
std::cout << '.' << std::flush;
EC_Group dom_pars(OID("1.3.132.0.8"));
ECDSA_PrivateKey ecdsa(rng, dom_pars);
PK_Signer signer(ecdsa, "EMSA1(SHA-1)");
SecureVector<byte> msg = hex_decode("12345678901234567890abcdef12");
SecureVector<byte> sig = signer.sign_message(msg, rng);
PK_Verifier verifier(ecdsa, "EMSA1(SHA-1)");
bool ok = verifier.verify_message(msg, sig);
if(!ok)
std::cout << "ERROR: Could not verify ECDSA signature\n";
sig[0]++;
ok = verifier.verify_message(msg, sig);
if(ok)
std::cout << "ERROR: Bogus ECDSA signature verified anyway\n";
}
bool test_ec_sign(RandomNumberGenerator& rng)
{
std::cout << "." << std::flush;
try
{
EC_Group dom_pars(OID("1.3.132.0.8"));
ECDSA_PrivateKey priv_key(rng, dom_pars);
std::string pem_encoded_key = PKCS8::PEM_encode(priv_key);
PK_Signer signer(priv_key, "EMSA1(SHA-224)");
PK_Verifier verifier(priv_key, "EMSA1(SHA-224)");
for(size_t i = 0; i != 256; ++i)
signer.update(static_cast<byte>(i));
SecureVector<byte> sig = signer.signature(rng);
for(u32bit i = 0; i != 256; ++i)
verifier.update(static_cast<byte>(i));
if(!verifier.check_signature(sig))
{
std::cout << "ECDSA self-test failed!";
return false;
}
// now check valid signature, different input
for(u32bit i = 1; i != 256; ++i) //starting from 1
verifier.update(static_cast<byte>(i));
if(verifier.check_signature(sig))
{
std::cout << "ECDSA with bad input passed validation";
return false;
}
// now check with original input, modified signature
sig[sig.size()/2]++;
for(u32bit i = 0; i != 256; ++i)
verifier.update(static_cast<byte>(i));
if(verifier.check_signature(sig))
{
std::cout << "ECDSA with bad signature passed validation";
return false;
}
}
catch (std::exception& e)
{
std::cout << "Exception in test_ec_sign - " << e.what() << "\n";
return false;
}
return true;
}
void test_create_pkcs8(RandomNumberGenerator& rng)
{
std::cout << "." << std::flush;
try
{
RSA_PrivateKey rsa_key(rng, 1024);
//RSA_PrivateKey rsa_key2(1024);
//cout << "\nequal: " << (rsa_key == rsa_key2) << "\n";
//DSA_PrivateKey key(DL_Group("dsa/jce/1024"));
std::ofstream rsa_priv_key(TEST_DATA_DIR "/rsa_private.pkcs8.pem");
rsa_priv_key << PKCS8::PEM_encode(rsa_key);
EC_Group dom_pars(OID("1.3.132.0.8"));
ECDSA_PrivateKey key(rng, dom_pars);
// later used by other tests :(
std::ofstream priv_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem");
priv_key << PKCS8::PEM_encode(key);
}
catch (std::exception& e)
{
std::cout << "Exception: " << e.what() << std::endl;
}
}
void test_create_and_verify(RandomNumberGenerator& rng)
{
std::cout << "." << std::flush;
EC_Group dom_pars(OID("1.3.132.0.8"));
ECDSA_PrivateKey key(rng, dom_pars);
std::ofstream priv_key(TEST_DATA_DIR "/dompar_private.pkcs8.pem");
priv_key << PKCS8::PEM_encode(key);
std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
ECDSA_PrivateKey* loaded_ec_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
CHECK_MESSAGE(loaded_ec_key, "the loaded key could not be converted into an ECDSA_PrivateKey");
std::auto_ptr<PKCS8_PrivateKey> loaded_key_1(PKCS8::load_key(TEST_DATA_DIR "/rsa_private.pkcs8.pem", rng));
ECDSA_PrivateKey* loaded_rsa_key = dynamic_cast<ECDSA_PrivateKey*>(loaded_key_1.get());
CHECK_MESSAGE(!loaded_rsa_key, "the loaded key is ECDSA_PrivateKey -> shouldn't be, is a RSA-Key");
//calc a curve which is not in the registry
// string p_secp = "2117607112719756483104013348936480976596328609518055062007450442679169492999007105354629105748524349829824407773719892437896937279095106809";
std::string a_secp = "0a377dede6b523333d36c78e9b0eaa3bf48ce93041f6d4fc34014d08f6833807498deedd4290101c5866e8dfb589485d13357b9e78c2d7fbe9fe";
std::string b_secp = "0a9acf8c8ba617777e248509bcb4717d4db346202bf9e352cd5633731dd92a51b72a4dc3b3d17c823fcc8fbda4da08f25dea89046087342595a7";
std::string G_secp_comp = "04081523d03d4f12cd02879dea4bf6a4f3a7df26ed888f10c5b2235a1274c386a2f218300dee6ed217841164533bcdc903f07a096f9fbf4ee95bac098a111f296f5830fe5c35b3e344d5df3a2256985f64fbe6d0edcc4c61d18bef681dd399df3d0194c5a4315e012e0245ecea56365baa9e8be1f7";
std::string order_g = "0e1a16196e6000000000bc7f1618d867b15bb86474418f";
// ::SecureVector<byte> sv_p_secp = hex_decode ( p_secp );
SecureVector<byte> sv_a_secp = hex_decode ( a_secp );
SecureVector<byte> sv_b_secp = hex_decode ( b_secp );
SecureVector<byte> sv_G_secp_comp = hex_decode ( G_secp_comp );
SecureVector<byte> sv_order_g = hex_decode ( order_g );
// BigInt bi_p_secp = BigInt::decode ( &sv_p_secp[0], sv_p_secp.size() );
BigInt bi_p_secp("2117607112719756483104013348936480976596328609518055062007450442679169492999007105354629105748524349829824407773719892437896937279095106809");
BigInt bi_a_secp = BigInt::decode ( &sv_a_secp[0], sv_a_secp.size() );
BigInt bi_b_secp = BigInt::decode ( &sv_b_secp[0], sv_b_secp.size() );
BigInt bi_order_g = BigInt::decode ( &sv_order_g[0], sv_order_g.size() );
CurveGFp curve(bi_p_secp, bi_a_secp, bi_b_secp);
PointGFp p_G = OS2ECP ( sv_G_secp_comp, curve );
EC_Group dom_params(curve, p_G, bi_order_g, BigInt(1));
if(!p_G.on_the_curve())
throw Internal_Error("Point not on the curve");
ECDSA_PrivateKey key_odd_oid(rng, dom_params);
std::string key_odd_oid_str = PKCS8::PEM_encode(key_odd_oid);
DataSource_Memory key_data_src(key_odd_oid_str);
std::auto_ptr<PKCS8_PrivateKey> loaded_key2(PKCS8::load_key(key_data_src, rng));
if(!dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get()))
{
std::cout << "Failed to reload an ECDSA key with unusual parameter set\n";
}
}
void test_curve_registry(RandomNumberGenerator& rng)
{
std::vector<std::string> oids;
oids.push_back("1.3.132.0.8");
oids.push_back("1.2.840.10045.3.1.1");
oids.push_back("1.2.840.10045.3.1.2");
oids.push_back("1.2.840.10045.3.1.3");
oids.push_back("1.2.840.10045.3.1.4");
oids.push_back("1.2.840.10045.3.1.5");
oids.push_back("1.2.840.10045.3.1.6");
oids.push_back("1.2.840.10045.3.1.7");
oids.push_back("1.3.132.0.6");
oids.push_back("1.3.132.0.7");
oids.push_back("1.3.132.0.28");
oids.push_back("1.3.132.0.29");
oids.push_back("1.3.132.0.9");
oids.push_back("1.3.132.0.30");
oids.push_back("1.3.132.0.31");
oids.push_back("1.3.132.0.32");
oids.push_back("1.3.132.0.33");
oids.push_back("1.3.132.0.10");
oids.push_back("1.3.132.0.34");
oids.push_back("1.3.132.0.35");
oids.push_back("1.3.6.1.4.1.8301.3.1.2.9.0.38");
oids.push_back("1.3.36.3.3.2.8.1.1.1");
oids.push_back("1.3.36.3.3.2.8.1.1.3");
oids.push_back("1.3.36.3.3.2.8.1.1.5");
oids.push_back("1.3.36.3.3.2.8.1.1.7");
oids.push_back("1.3.36.3.3.2.8.1.1.9");
oids.push_back("1.3.36.3.3.2.8.1.1.11");
oids.push_back("1.3.36.3.3.2.8.1.1.13");
unsigned int i;
for (i = 0; i < oids.size(); i++)
{
std::cout << "." << std::flush;
try
{
OID oid(oids[i]);
EC_Group dom_pars(oid);
ECDSA_PrivateKey ecdsa(rng, dom_pars);
PK_Signer signer(ecdsa, "EMSA1(SHA-1)");
PK_Verifier verifier(ecdsa, "EMSA1(SHA-1)");
SecureVector<byte> msg = hex_decode("12345678901234567890abcdef12");
SecureVector<byte> sig = signer.sign_message(msg, rng);
if(!verifier.verify_message(msg, sig))
std::cout << "Failed testing ECDSA sig for curve " << oids[i] << "\n";
}
catch(Invalid_Argument& e)
{
std::cout << "Error testing curve " << oids[i] << " - " << e.what() << "\n";
}
}
// std::cout << "test_curve_registry finished" << endl;
}
void test_read_pkcs8(RandomNumberGenerator& rng)
{
std::cout << "." << std::flush;
SecureVector<byte> msg = hex_decode("12345678901234567890abcdef12");
try
{
std::auto_ptr<PKCS8_PrivateKey> loaded_key(PKCS8::load_key(TEST_DATA_DIR "/wo_dompar_private.pkcs8.pem", rng));
ECDSA_PrivateKey* ecdsa = dynamic_cast<ECDSA_PrivateKey*>(loaded_key.get());
CHECK_MESSAGE(ecdsa, "the loaded key could not be converted into an ECDSA_PrivateKey");
PK_Signer signer(*ecdsa, "EMSA1(SHA-1)");
SecureVector<byte> sig = signer.sign_message(msg, rng);
PK_Verifier verifier(*ecdsa, "EMSA1(SHA-1)");
CHECK_MESSAGE(verifier.verify_message(msg, sig),
"generated sig could not be verified positively");
}
catch (std::exception& e)
{
std::cout << "Exception in test_read_pkcs8 - " << e.what() << "\n";
}
try
{
std::auto_ptr<PKCS8_PrivateKey> loaded_key_nodp(PKCS8::load_key(TEST_DATA_DIR "/nodompar_private.pkcs8.pem", rng));
// anew in each test with unregistered domain-parameters
ECDSA_PrivateKey* ecdsa_nodp = dynamic_cast<ECDSA_PrivateKey*>(loaded_key_nodp.get());
CHECK_MESSAGE(ecdsa_nodp, "the loaded key could not be converted into an ECDSA_PrivateKey");
PK_Signer signer(*ecdsa_nodp, "EMSA1(SHA-1)");
PK_Verifier verifier(*ecdsa_nodp, "EMSA1(SHA-1)");
SecureVector<byte> signature_nodp = signer.sign_message(msg, rng);
CHECK_MESSAGE(verifier.verify_message(msg, signature_nodp),
"generated signature could not be verified positively (no_dom)");
try
{
std::auto_ptr<PKCS8_PrivateKey> loaded_key_withdp(
PKCS8::load_key(TEST_DATA_DIR "/withdompar_private.pkcs8.pem", rng));
std::cout << "Unexpected success: loaded key with unknown OID\n";
}
catch (std::exception) { /* OK */ }
}
catch (std::exception& e)
{
std::cout << "Exception in test_read_pkcs8 - " << e.what() << "\n";
}
}
}
u32bit do_ecdsa_tests(Botan::RandomNumberGenerator& rng)
{
std::cout << "Testing ECDSA (InSiTo unit tests): ";
test_hash_larger_than_n(rng);
test_decode_ecdsa_X509();
test_decode_ver_link_SHA256();
test_decode_ver_link_SHA1();
test_sign_then_ver(rng);
test_ec_sign(rng);
test_create_pkcs8(rng);
test_create_and_verify(rng);
test_curve_registry(rng);
test_read_pkcs8(rng);
std::cout << std::endl;
return 0;
}
#else
u32bit do_ecdsa_tests(Botan::RandomNumberGenerator&) { return 0; }
#endif
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