Added VERIFY_ALWAYS_SUCCEEDS conditional to allow signature verifiers to always succeed during fuzzing for maximum code coverage.

libi2pd/Ed25519.cpp

@@ -126,6 +126,11 @@ namespace crypto
 		BN_CTX_free (ctx);
 		if (!passed)
 			LogPrint (eLogError, "25519 signature verification failed");
+
+#ifdef VERIFY_ALWAYS_SUCCEEDS
+		passed = true;
+#endif
+
 		return passed;
 	}
 

libi2pd/Gost.cpp

@@ -102,6 +102,11 @@ namespace crypto
 		EC_POINT_free (C);
 		BN_CTX_end (ctx);
 		BN_CTX_free (ctx);
+
+#ifdef VERIFY_ALWAYS_SUCCEEDS
+		ret = true;
+#endif
+
 		return ret;
 	}
 

libi2pd/Signature.cpp

@@ -34,7 +34,13 @@ namespace crypto
 
 	bool EDDSA25519Verifier::Verify (const uint8_t * buf, size_t len, const uint8_t * signature) const
 	{
-		return EVP_DigestVerify (m_MDCtx, signature, 64, buf, len);
+		bool ret = EVP_DigestVerify (m_MDCtx, signature, 64, buf, len);
+
+#ifdef VERIFY_ALWAYS_SUCCEEDS
+		ret = true;
+#endif
+
+		return ret;
 	}
 
 #else