System.Security.Cryptography.DSA.SignData C# (CSharp) Метод

        public virtual byte[] SignData(Stream data, HashAlgorithmName hashAlgorithm)
        {
            if (data == null) { throw new ArgumentNullException(nameof(data)); }
            if (String.IsNullOrEmpty(hashAlgorithm.Name)) { throw HashAlgorithmNameNullOrEmpty(); }

            byte[] hash = HashData(data, hashAlgorithm);
            return CreateSignature(hash);
        }

 public byte[] SignData(byte[] buffer)
 {
     return(_impl.SignData(buffer, HashAlgorithmName.SHA1));
 }