public static extern int blsVerify(blsSignature sig, blsPublicKey pub, byte[] m, int size);
static void bls_use_stackTest()
{
var msg = "this is a pen";
var msgBytes = Encoding.UTF8.GetBytes(msg);
var msgSize = msgBytes.Length;
//blsSetETHserialization(1);
//Console.WriteLine("Eth serialization set");
var privateKeyBytes = new byte[] {
0x47, 0xb8, 0x19, 0x2d, 0x77, 0xbf, 0x87, 0x1b,
0x62, 0xe8, 0x78, 0x59, 0xd6, 0x53, 0x92, 0x27,
0x25, 0x72, 0x4a, 0x5c, 0x03, 0x1a, 0xfe, 0xab,
0xc6, 0x0b, 0xce, 0xf5, 0xff, 0x66, 0x51, 0x38
};
Console.WriteLine("Serialized private key: {0}", BitConverter.ToString(privateKeyBytes));
var sec = new blsSecretKey();
unsafe
{
fixed(byte *privateKeyPtr = privateKeyBytes)
{
blsSecretKeyDeserialize(ref sec, privateKeyPtr, privateKeyBytes.Length);
}
}
//blsSecretKeySetByCSPRNG(out sec);
Console.WriteLine("Secret key: {0}", sec);
Console.WriteLine();
var pub = new blsPublicKey();
blsGetPublicKey(ref pub, ref sec);
// unsafe
// {
// fixed (blsPublicKey* pubPtr = pub)
// fixed (blsSecretKey* secPtr = sec)
// {
// blsGetPublicKey(pubPtr, secPtr);
// }
// }
Console.WriteLine("Public key: {0}", pub);
Console.WriteLine();
var buffer = new Span <byte>(new byte[48]);
unsafe
{
fixed(byte *ptr = buffer)
{
blsPublicKeySerialize(ptr, buffer.Length, ref pub);
}
}
Console.WriteLine("Expecting public key b301803f...");
Console.WriteLine("Serialized public key: {0}", BitConverter.ToString(buffer.ToArray()));
var sig0 = new blsSignature();
var ret0 = blsVerify(ref sig0, ref pub, msgBytes, msgSize);
Console.WriteLine("Verify Fail {0}", ret0);
var sig = new blsSignature();
blsSign(ref sig, ref sec, msgBytes, msgSize);
Console.WriteLine("Signature : {0}", sig);
Console.WriteLine();
int ret = blsVerify(ref sig, ref pub, msgBytes, msgSize);
Console.WriteLine("Verify Result {0}", ret);
msgBytes[0]++;
int ret2 = blsVerify(ref sig, ref pub, msgBytes, msgSize);
Console.WriteLine("Verify Result after tamper {0}", ret2);
}
public static extern int blsSign(out blsSignature sig, blsSecretKey sec, byte[] m, int size);
public static extern int blsSign([In, Out] ref blsSignature sig, ref blsSecretKey sec, byte[] m, int size);