public static bool Validate(byte[] message, byte[] publicKey, byte[] signatureBytes)
{
int cb;
UInt32 nspk = strTou32(signatureBytes, 0);
UInt32 nspkKey = strTou32(publicKey, 0);
if (nspk + 1 != nspkKey)
{
throw new CoseException("Incorrect number of signature layeres for the public key");
}
byte[][] sigList = new byte[nspk + 1][];
byte[][] publist = new byte[nspk][];
int offset = 4;
for (uint i = 0; i < nspk; i++)
{
cb = LmsKey.SignatureLength(signatureBytes, offset);
sigList[i] = new byte[cb];
Array.Copy(signatureBytes, offset, sigList[i], 0, cb);
offset += cb;
cb = LmsKey.PublicKeyLength(signatureBytes, offset);
publist[i] = new byte[cb];
Array.Copy(signatureBytes, offset, publist[i], 0, cb);
offset += cb;
}
cb = LmsKey.SignatureLength(signatureBytes, offset);
sigList[nspk] = new byte[cb];
Array.Copy(signatureBytes, offset, sigList[nspk], 0, cb);
byte[] key = new byte[publicKey.Length - 4];
Array.Copy(publicKey, 4, key, 0, key.Length);
for (uint i = 0; i < nspk; i++)
{
if (!LmsKey.Validate(publist[i], key, sigList[i]))
{
return(false);
}
Array.Copy(publist[i], key, publist[i].Length);
}
return(LmsKey.Validate(message, key, sigList[nspk]));
}
public static string PrintSignature(byte[] signatureBytes)
{
UInt32 nspk = strTou32(signatureBytes, 0);
string result = "";
int offset = 4;
for (uint i = 0; i < nspk; i++)
{
result += LmsKey.PrintSignature(signatureBytes, ref offset);
result += LmsKey.PrintPublicKey(signatureBytes, ref offset);
}
result +=
"------------------------------------------------\nfinal signature:\n-----------------------------------";
result += LmsKey.PrintSignature(signatureBytes, ref offset);
return(result);
}
public HssNode(string[] input, int offset)
{
privateKey = new LmsKey(input, offset);
}
public HssNode(LmsAlgorithmType lmsType, LmotsAlgorithmType lmotsType)
{
privateKey = new LmsKey(lmsType, lmotsType);
}
