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Add SignStream and VerifyStream tests (GH #796)

pull/797/head
Jeffrey Walton 2019-02-10 22:47:28 -05:00
parent c1273955de
commit 2d3e19dac5
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GPG Key ID: B36AB348921B1838
1 changed files with 53 additions and 0 deletions
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53
validat7.cpp
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@ -537,6 +537,59 @@ bool TestEd25519()
else
std::cout << "FAILED:";
std::cout << " " << SIGN_COUNT << " verifications" << std::endl;
// Test signature verification using streams
for (unsigned int i = 0; i<SIGN_COUNT; ++i)
{
// Fresh keypair
(void)NaCl::crypto_sign_keypair(pk1, sk1);
std::memcpy(sk2, sk1, 32);
std::memcpy(pk2, pk1, 32);
// Message and signatures
byte msg1[MSG_SIZE+NACL_EXTRA], msg2[MSG_SIZE];
byte sig1[MSG_SIZE+NACL_EXTRA], sig2[64];
GlobalRNG().GenerateBlock(msg1, MSG_SIZE);
size_t len = GlobalRNG().GenerateWord32(0, MSG_SIZE);
std::memcpy(msg2, msg1, len);
// Spike the signatures
sig1[1] = 1; sig2[2] = 2;
// Create a stream
std::string str2((const char*)msg2, len);
std::istringstream iss(str2);
word64 smlen = sizeof(sig1);
int ret1 = NaCl::crypto_sign(sig1, &smlen, msg1, len, sk1);
int ret2 = Donna::ed25519_sign(iss, sk2, pk2, sig2);
int ret3 = std::memcmp(sig1, sig2, 64);
bool tamper = !!GlobalRNG().GenerateBit();
if (tamper)
{
sig1[1] ^= 1;
sig2[1] ^= 1;
}
// Reset stream
iss.clear();
iss.seekg(0);
// Verify the other's signature using the other's key
word64 mlen = len+NACL_EXTRA;
int ret4 = NaCl::crypto_sign_open(msg1, &mlen, sig1, smlen, pk2);
int ret5 = Donna::ed25519_sign_open(iss, pk1, sig2);
bool fail = ret1 != 0 || ret2 != 0 || ret3 != 0 || ((ret4 != 0) ^ tamper) || ((ret5 != 0) ^ tamper);
pass = pass && !fail;
}
if (pass)
std::cout << "passed:";
else
std::cout << "FAILED:";
std::cout << " " << SIGN_COUNT << " streams" << std::endl;
#endif
// RFC 8032 test vector