使用VB寫的加密算法庫,包括Blowfish, IDEA, Triple DES (3DES), DES, DESE, Gost, Skipjack, TEA, Cast5, Serpent-128, Serpent-192, Serpent-256, Rijndael-128, Rijndael-192, Rijndael-256, RC2, RC4, and Twofish), six popular hash algorithms (SHA-1, SHA-256, MD2, MD4, MD5, and RipeMD), 還有 HuffMan和Base64算法.
標簽:
加密
算法庫
上傳時間:
2014-12-21
上傳用戶:zhichenglu
In each step the LZSS algorithm sends either a character or a <position, length> pair. Among these, perhaps character "e" appears more frequently than "x", and a <position, length> pair of length 3 might be commoner than one of length 18, say. Thus, if we encode the more frequent in fewer bits and the less frequent in more bits, the total length of the encoded text will be diminished. This consideration suggests that we use HuffMan or arithmetic coding, preferably of adaptive kind, along with LZSS.
標簽:
algorithm
character
position
either
上傳時間:
2014-01-27
上傳用戶:wang0123456789