void test_crypto_sign_open()
{
Console.WriteLine("Testing crypto_sign_open() .....");
byte[] message = LibSalt.StringToByteArray("test");
ulong mlen = 4;
byte[] pk = new byte[crypto_sign_PUBLICKEYBYTES];
byte[] sk = new byte[crypto_sign_SECRETKEYBYTES];
byte[] pk2 = new byte[crypto_sign_PUBLICKEYBYTES];
byte[] sk2 = new byte[crypto_sign_SECRETKEYBYTES];
LibSalt.crypto_sign_keypair(pk, sk);
LibSalt.crypto_sign_keypair(pk2, sk2);
ulong smlen = (ulong)LibSalt.crypto_sign_BYTES() + mlen;
byte[] signed_message = new byte[smlen];
LibSalt.crypto_sign(signed_message, message, sk);
byte[] unsigned_message = new byte[mlen];
int success = LibSalt.crypto_sign_open(unsigned_message, signed_message, pk);
int success2 = LibSalt.crypto_sign_open(unsigned_message, signed_message, pk2);
// Test for sucessful decoding signed message with correct private key
UnitTest.ASSERT_EQUALS(success, 0);
// Test for unsucessful decoding signed message with incorrect private key
UnitTest.ASSERT_DIFFERS(success2, 0);
}
void example_crypto_sign()
{
Console.WriteLine("Example: example_crypto_sign()");
byte[] message = LibSalt.StringToByteArray("example");
ulong mlen = (ulong)message.Length;
byte[] pk = new byte[crypto_sign_PUBLICKEYBYTES];
byte[] sk = new byte[crypto_sign_SECRETKEYBYTES];
byte[] pk2 = new byte[crypto_sign_PUBLICKEYBYTES];
byte[] sk2 = new byte[crypto_sign_SECRETKEYBYTES];
LibSalt.crypto_sign_keypair(pk, sk);
LibSalt.crypto_sign_keypair(pk2, sk2);
ulong smlen = (ulong)LibSalt.crypto_sign_BYTES() + mlen;
byte[] signed_message = new byte[smlen];
LibSalt.crypto_sign(signed_message, message, sk);
Console.WriteLine("Public Key: " + LibSalt.ByteArrayToString(pk));
Console.WriteLine("Signed Message: " + LibSalt.ByteArrayToString(signed_message));
byte[] unsigned_message = new byte[mlen];
byte[] unsigned_message2 = new byte[mlen];
int success = LibSalt.crypto_sign_open(unsigned_message, signed_message, pk);
int success2 = LibSalt.crypto_sign_open(unsigned_message2, signed_message, pk2);
Console.WriteLine("Unsigned Message: " + LibSalt.ByteArrayToString(unsigned_message));
Console.WriteLine("Signature Verification for pk: " + LibSalt.ByteArrayToString(pk));
if (success == 0)
{
Console.WriteLine("Valid Signature");
}
else
{
Console.WriteLine("Invalid signature");
}
Console.WriteLine("Signature Verification for pk2: " + LibSalt.ByteArrayToString(pk2));
if (success2 == 0)
{
Console.WriteLine("Valid Signature");
}
else
{
Console.WriteLine("Invalid signature");
}
}