private static byte[] EncodeString(byte[] str) { if (Arrays.IsNullOrEmpty(str)) { return(XofUtilities.LeftEncode(0L)); } return(Arrays.Concatenate(XofUtilities.LeftEncode(str.Length * 8L), str)); }
private byte[] encodeString(byte[] str) { if (str == null || str.Length == 0) { return(XofUtilities.LeftEncode(0)); } return(Arrays.Concatenate(XofUtilities.LeftEncode(str.Length * 8L), str)); }
public void Reset() { cshake.Reset(); Arrays.Clear(buffer); byte[] hdr = XofUtilities.LeftEncode(B); cshake.BlockUpdate(hdr, 0, hdr.Length); nCount = 0; bufOff = 0; firstOutput = true; }
/// <summary> /// Base constructor /// </summary> /// <param name="bitLength">bit length of the underlying SHAKE function, 128 or 256.</param> /// <param name="N">the function name string, note this is reserved for use by NIST. Avoid using it if not required.</param> /// <param name="S">the customization string - available for local use.</param> public CShakeDigest(int bitLength, byte[] N, byte[] S) : base(bitLength) { if ((N == null || N.Length == 0) && (S == null || S.Length == 0)) { diff = null; } else { diff = Arrays.ConcatenateAll(XofUtilities.LeftEncode(rate / 8), encodeString(N), encodeString(S)); DiffPadAndAbsorb(); } }