Description: SHA (Secure Hash Algorithm, Secure Hash Algorithm translated) is a U.S. National Security Agency (NSA) design, the U.S. National Institute of Standards and Technology (NIST) released a series of password hash function. Formally known as the SHA family members of the first release in 1993. But now people take it the informal name of a SHA-0 in order to avoid confusion of its successor. Two years later, SHA-1, the first successor to SHA issued. There are four variants have been released to enhance the output of some minor changes to the scope and design: SHA-224, SHA-256, SHA-384 and SHA-512 (these are sometimes also known as SHA-2).
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sha1.java
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