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(); abcd.A = 0x67452301; abcd.B = 0xefcdab89; abcd.C = 0x98badcfe; abcd.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)); }
protected override void HashCore(byte[] array, int ibStart, int cbSize) { int startIndex = ibStart; int totalArrayLength = _dataSize + cbSize; if (totalArrayLength >= 64) { Array.Copy(array, startIndex, _data, _dataSize, 64 - _dataSize); // Process message of 64 bytes (512 bits) MD5Core.GetHashBlock(_data, ref _abcd, 0); startIndex += 64 - _dataSize; totalArrayLength -= 64; while (totalArrayLength >= 64) { Array.Copy(array, startIndex, _data, 0, 64); MD5Core.GetHashBlock(array, ref _abcd, startIndex); totalArrayLength -= 64; startIndex += 64; } _dataSize = totalArrayLength; Array.Copy(array, startIndex, _data, 0, totalArrayLength); } else { Array.Copy(array, startIndex, _data, _dataSize, cbSize); _dataSize = totalArrayLength; } _totalLength += cbSize; }
public static string GetMd5Hash(string input) { #if WINRT // NB: Technically, we could do this everywhere, but if we did this // upgrade, we may return different strings than we used to (i.e. // formatting-wise), which would break old caches. return(MD5Core.GetHashString(input, Encoding.UTF8)); #else using (var md5Hasher = new MD5Managed()) { // Convert the input string to a byte array and compute the hash. var data = md5Hasher.ComputeHash(Encoding.UTF8.GetBytes(input)); var sBuilder = new StringBuilder(); foreach (var item in data) { sBuilder.Append(item.ToString("x2")); } return(sBuilder.ToString()); } #endif }
protected override byte[] HashFinal() { return(MD5Core.GetHashFinalBlock(_data, 0, _dataSize, _abcd, _totalLength * 8)); }
protected override byte[] HashFinal() { base.HashValue = MD5Core.GetHashFinalBlock(_data, 0, _dataSize, _abcd, _totalLength * 8); return(base.HashValue); }