Beispiel #1
0
        public static unsafe void HashData(SafeHashHandleImpl hashHandle, byte[] data, int dataOffset, int dataLength)
        {
            if (data == null)
            {
                throw ExceptionUtility.ArgumentNull("data");
            }

            if (dataOffset < 0)
            {
                throw ExceptionUtility.ArgumentOutOfRange("dataOffset");
            }

            if (dataLength < 0)
            {
                throw ExceptionUtility.ArgumentOutOfRange("dataLength");
            }

            if (data.Length < dataOffset + dataLength)
            {
                throw ExceptionUtility.ArgumentOutOfRange("dataLength");
            }

            if (dataLength > 0)
            {
                fixed(byte *dataRef = data)
                {
                    var dataOffsetRef = dataRef + dataOffset;

                    if (!CryptoApi.CryptHashData(hashHandle, dataOffsetRef, (uint)dataLength, 0))
                    {
                        throw CreateWin32Error();
                    }
                }
            }
        }