| public SignData ( byte buffer, int offset, int count, object halg ) : byte[] | ||
| buffer | byte | The input data for which to compute the hash |
| offset | int | The offset into the array from which to begin using data |
| count | int | The number of bytes in the array to use as data. |
| halg | object | The hash algorithm to use to create the hash value. |
| return | byte[] | |
public byte[] SignData(byte[] buffer, int offset, int count, object halg)
{
int calgHash = CapiHelper.ObjToHashAlgId(halg);
HashAlgorithm hash = CapiHelper.ObjToHashAlgorithm(halg);
byte[] hashVal = hash.ComputeHash(buffer, offset, count);
return SignHash(hashVal, calgHash);
}
public string SignAuthCookieV1(string cookie)
{
byte[] privateKey = this.GetPrivateKey(KeyType.AuthCookieV1);
//// The array to store the signed message in bytes
byte[] signedBytes;
using (var rsa = new RSACryptoServiceProvider())
{
// Write the message to a byte array using UTF8 as the encoding.
byte[] originalData = System.Text.Encoding.UTF8.GetBytes(cookie);
try
{
// Import the private key used for signing the message
rsa.ImportParameters(SecureSigningService.FromBinaryToRSAParameters(privateKey));
signedBytes = rsa.SignData(originalData, CryptoConfig.MapNameToOID("SHA512"));
}
catch (CryptographicException e)
{
Console.WriteLine(e.Message);
return null;
}
finally
{
//// Set the keycontainer to be cleared when rsa is garbage collected.
rsa.PersistKeyInCsp = false;
}
}
// Convert the a base64 string before returning
return Convert.ToBase64String(signedBytes);
}