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| author | Jeffrey Walton <noloader@gmail.com> | 2019-02-10 23:08:14 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-02-10 23:08:14 -0500 |
| commit | 0ca4c41a9780814de19b997f1635668781dd5fdb (patch) | |
| tree | 88a6e132c17f01b8b1d8945abb94defce66ad482 /validat7.cpp | |
| parent | 1c6a96a57eadef520af26c61afc43e8aba6da910 (diff) | |
| download | cryptopp-git-0ca4c41a9780814de19b997f1635668781dd5fdb.tar.gz | |
Add ed25519 SignStream and VerifyStream functions (GH #796, PR #797)
Diffstat (limited to 'validat7.cpp')
| -rw-r--r-- | validat7.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/validat7.cpp b/validat7.cpp index db9c31ea..ad8bf755 100644 --- a/validat7.cpp +++ b/validat7.cpp @@ -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
|