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Add tests for EdDSA25519, fix Verifier.

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This commit is contained in:
EinMByte 2015-08-29 23:21:32 +02:00
parent 99b2ca860d
commit eabf434a48
5 changed files with 108 additions and 5 deletions
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4
core/crypto/EdDSA25519.cpp
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@ -14,7 +14,7 @@ EDDSA25519Verifier::EDDSA25519Verifier(const uint8_t* signingKey)
bool EDDSA25519Verifier::Verify(const uint8_t* buf, size_t len, const uint8_t* signature) const
{
return ed25519_ref10_open(signature, buf, len, m_PublicKey) > 0;
return ed25519_ref10_open(signature, buf, len, m_PublicKey) >= 0;
}
size_t EDDSA25519Verifier::GetPublicKeyLen() const
@ -35,7 +35,7 @@ EDDSA25519Signer::EDDSA25519Signer(const uint8_t* signingPrivateKey)
ed25519_ref10_pubkey(m_PublicKey, m_PrivateKey);
}
void EDDSA25519Signer::Sign(CryptoPP::RandomNumberGenerator& rnd, const uint8_t* buf, int len, uint8_t* signature) const
void EDDSA25519Signer::Sign(CryptoPP::RandomNumberGenerator&, const uint8_t* buf, int len, uint8_t* signature) const
{
ed25519_ref10_sign(signature, buf, len, m_PrivateKey, m_PublicKey);
}

2
core/crypto/EdDSA25519.h
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@ -37,7 +37,7 @@ public:
* @todo do not pass random number generator, EdDSA does not require a random
* source
*/
void Sign(CryptoPP::RandomNumberGenerator& rnd, const uint8_t* buf, int len, uint8_t* signature) const;
void Sign(CryptoPP::RandomNumberGenerator&, const uint8_t* buf, int len, uint8_t* signature) const;
uint8_t m_PrivateKey[EDDSA25519_PRIVATE_KEY_LENGTH];
uint8_t m_PublicKey[EDDSA25519_PUBLIC_KEY_LENGTH];

2
core/crypto/ed25519/crypto_verify_32.h
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@ -1,3 +1,3 @@
#include <cstring>
#define crypto_verify_32(a,b) (std::memcmp((a), (b), 32) == 0)
#define crypto_verify_32(a,b) (!!std::memcmp((a), (b), 32))

1
core/crypto/ed25519/open.cpp
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@ -33,7 +33,6 @@ int crypto_sign_open(
ge_tobytes(rcheck,&R);
if (crypto_verify_32(rcheck,rcopy) == 0)
return 0;
badsig:
return -1;

104
tests/Crypto.cpp
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@ -2,6 +2,7 @@
#include <boost/test/unit_test.hpp>
#include "crypto/aes.h"
#include "crypto/EdDSA25519.h"
using namespace i2p::crypto;
@ -200,5 +201,108 @@ BOOST_FIXTURE_TEST_CASE(AesCbcDecrypt, AesCbcFixture)
}
}
struct EDDSAFixture {
EDDSAFixture()
: verifier(public_key), signer(private_key), dummy_rng() {}
uint8_t private_key[32] = {
0xe1, 0xec, 0xff, 0xa6, 0xcd, 0x4e, 0xc7, 0x09, 0x2f, 0x87,
0x44, 0xaf, 0x48, 0xb3, 0x7f, 0x63, 0x71, 0x63, 0x1e, 0x01,
0xf7, 0x20, 0xe9, 0x0a, 0xfa, 0x3c, 0x90, 0xec, 0x97, 0x4c,
0x16, 0x27
};
uint8_t public_key[32] = {
0x0f, 0x90, 0x8b, 0xaf, 0xef, 0x40, 0x79, 0xb5, 0x94, 0xb5,
0x13, 0xf9, 0xf6, 0x02, 0x65, 0xef, 0x4d, 0x95, 0xa4, 0x84,
0x2d, 0xc7, 0x23, 0x1b, 0x93, 0xe4, 0x2e, 0x9d, 0x45, 0x52,
0xed, 0x62
};
EDDSA25519Verifier verifier;
EDDSA25519Signer signer;
CryptoPP::RandomNumberGenerator dummy_rng;
};
BOOST_FIXTURE_TEST_CASE(EdDSA25519KeyLength, EDDSAFixture)
{
BOOST_CHECK_EQUAL(verifier.GetPublicKeyLen(), EDDSA25519_PUBLIC_KEY_LENGTH);
}
BOOST_FIXTURE_TEST_CASE(EdDSA25519SignatureLength, EDDSAFixture)
{
BOOST_CHECK_EQUAL(verifier.GetSignatureLen(), EDDSA25519_SIGNATURE_LENGTH);
}
BOOST_FIXTURE_TEST_CASE(EdDSA25519Sign, EDDSAFixture)
{
const uint8_t message[33] = {
0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20,
0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x73, 0x73, 0x61,
0x67, 0x65, 0x21, 0x20, 0x2d, 0x45, 0x69, 0x6e, 0x4d, 0x42,
0x79, 0x74, 0x65
};
const uint8_t signature[64] = {
0xfa, 0x69, 0x31, 0x22, 0x61, 0xb5, 0x4f, 0xf5, 0x7e, 0x20,
0xa6, 0x05, 0x91, 0xe7, 0xab, 0x41, 0x43, 0x48, 0x85, 0x02,
0xac, 0xcf, 0x3f, 0x17, 0x13, 0x09, 0x3e, 0x25, 0x3c, 0x15,
0x6d, 0xc3, 0x55, 0xcd, 0x8a, 0x30, 0x07, 0xe2, 0x41, 0xa1,
0x98, 0x24, 0xe5, 0xc0, 0x9e, 0x90, 0xbb, 0x9e, 0x6b, 0xe8,
0x41, 0x84, 0x2d, 0x13, 0x2e, 0x1f, 0x2a, 0x46, 0x31, 0x2e,
0x5c, 0x94, 0x7e, 0x0d
};
uint8_t output[64] = {};
signer.Sign(dummy_rng, message, 33, output);
BOOST_CHECK_EQUAL_COLLECTIONS(output, output + 64, signature, signature + 64);
}
BOOST_FIXTURE_TEST_CASE(EdDSA25519Verify, EDDSAFixture)
{
const uint8_t message[33] = {
0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20,
0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x73, 0x73, 0x61,
0x67, 0x65, 0x21, 0x20, 0x2d, 0x45, 0x69, 0x6e, 0x4d, 0x42,
0x79, 0x74, 0x65
};
const uint8_t signature[64] = {
0xfa, 0x69, 0x31, 0x22, 0x61, 0xb5, 0x4f, 0xf5, 0x7e, 0x20,
0xa6, 0x05, 0x91, 0xe7, 0xab, 0x41, 0x43, 0x48, 0x85, 0x02,
0xac, 0xcf, 0x3f, 0x17, 0x13, 0x09, 0x3e, 0x25, 0x3c, 0x15,
0x6d, 0xc3, 0x55, 0xcd, 0x8a, 0x30, 0x07, 0xe2, 0x41, 0xa1,
0x98, 0x24, 0xe5, 0xc0, 0x9e, 0x90, 0xbb, 0x9e, 0x6b, 0xe8,
0x41, 0x84, 0x2d, 0x13, 0x2e, 0x1f, 0x2a, 0x46, 0x31, 0x2e,
0x5c, 0x94, 0x7e, 0x0d
};
BOOST_CHECK(verifier.Verify(message, 33, signature));
}
BOOST_FIXTURE_TEST_CASE(EdDSA25519VerifyBadMsg, EDDSAFixture)
{
const uint8_t message[10] = {};
const uint8_t signature[64] = {
0xfa, 0x69, 0x31, 0x22, 0x61, 0xb5, 0x4f, 0xf5, 0x7e, 0x20,
0xa6, 0x05, 0x91, 0xe7, 0xab, 0x41, 0x43, 0x48, 0x85, 0x02,
0xac, 0xcf, 0x3f, 0x17, 0x13, 0x09, 0x3e, 0x25, 0x3c, 0x15,
0x6d, 0xc3, 0x55, 0xcd, 0x8a, 0x30, 0x07, 0xe2, 0x41, 0xa1,
0x98, 0x24, 0xe5, 0xc0, 0x9e, 0x90, 0xbb, 0x9e, 0x6b, 0xe8,
0x41, 0x84, 0x2d, 0x13, 0x2e, 0x1f, 0x2a, 0x46, 0x31, 0x2e,
0x5c, 0x94, 0x7e, 0x0d
};
BOOST_CHECK(!verifier.Verify(message, 10, signature));
}
BOOST_FIXTURE_TEST_CASE(EdDSA25519VerifyBadSignature, EDDSAFixture)
{
const uint8_t message[33] = {
0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20,
0x74, 0x65, 0x73, 0x74, 0x20, 0x6d, 0x65, 0x73, 0x73, 0x61,
0x67, 0x65, 0x21, 0x20, 0x2d, 0x45, 0x69, 0x6e, 0x4d, 0x42,
0x79, 0x74, 0x65
};
const uint8_t signature[64] = {};
BOOST_CHECK(!verifier.Verify(message, 33, signature));
}
BOOST_AUTO_TEST_SUITE_END()