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AES
- AES的基本要求是,采用对称分组密码体制。AES的加密数据块长度固定为128 比特,密钥长度则可以是128,192或256比特。AES加密有很多轮的重复和变换。大致步骤如下:1、密钥扩展(KeyExpansion)。2、初始轮(Initial Round)。3、重复轮(Rounds)。每一轮由四个不同的阶段组成,包括一个混淆和三个代换:字节代换(SubBytes)、行移位(ShiftRows)、列混淆(MixColumns)、轮密钥加(AddRoundKey)。4、最终轮(Final Round
There-are-three-types-of-cryptography-techniques.
- Caesar cipher is a simple substitution cipher where each letter in the plain text is replaced with a letter a fixed number of places down the aplhabet. EXAMPLE If the number of places to shift is 3, the letter A would be converted to ltter D. Usi
hash1
- hash算法MD4,用C++编写,输入任意长度可输出固定长度的hash值-hash algorithm MD4, written in C++, can be of any length and output a fixed-length hash value
i2 reader
- i2 reader for oscam fixed emm errors