public static byte[] GetHash(byte[] input) { if (null == input) { throw new System.ArgumentNullException("input", "Unable to calculate hash over null input data"); } //Intitial values defined in RFC 1321 ABCDStruct abcd = new ABCDStruct { A = 0x67452301, B = 0xefcdab89, C = 0x98badcfe, D = 0x10325476 }; //We pass in the input array by block, the final block of data must be handled specialy for padding & length embeding int startIndex = 0; while (startIndex <= input.Length - 64) { MD5Core.GetHashBlock(input, ref abcd, startIndex); startIndex += 64; } // The final data block. return(MD5Core.GetHashFinalBlock(input, startIndex, input.Length - startIndex, abcd, (Int64)input.Length * 8)); }
/// <summary> /// When overridden in a derived class, finalizes the hash computation after the last data is processed by the cryptographic stream object. /// </summary> /// <returns>The computed hash code.</returns> protected override byte[] HashFinal() { base.HashValue = MD5Core.GetHashFinalBlock(_data, 0, _dataSize, _abcd, _totalLength * 8); return(base.HashValue); }