SHA-1 produces a message digest based on principles similar to those used by Ronald L. Rivest of MIT in the design of the MD4 and MD5 message digest algorithms, but has a more conservative design.SHA-2 is a set of cryptographic hash functions (SHA-224, SHA-256, SHA-384, SHA-512, SHA-512/224, SHA-512/256) designed by the U.S. National Security Agency (NSA) and published in 2001 by the NIST as a U.S. Federal Information Processing Standard (FIPS).

代码
....\MD5的实现和测试.java
....\SHA-1和SHA-2的实现与测试 cosc385final
....\.....................................\A9Utility.java
....\.....................................\A9UtilityTests.java
....\.....................................\AllTests.java
....\.....................................\BlockCipher.java
....\.....................................\DESCipher.java
....\.....................................\DESCipherTests.java
....\.....................................\Radix64.java
....\.....................................\Radix64Tests.java
....\.....................................\RC4Cipher.java
....\.....................................\RC4CipherTests.java
....\.....................................\RijndaelCipher.java
....\.....................................\RijndaelCipherTests.java
....\.....................................\SHA-test.java
....\.....................................\SHA1.java
....\.....................................\SHA2.java

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