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To maintain data integrity hash functions are generally used. Hash function is one type of cryptographic primitives, which provide an assurance for data integrity. NAS has designed SHA hash functions which are the set of cryptographic hash function. There are so many SHA function existing in which SHA-1 produces message digest that is of 160 bits long. Later in SHA-1 has been identified security flaws, namely that a possible mathematical weakness might exist. This point out that stronger hash function would be desirable. In this paper, the authors are proposing a new hash function, say SHA-176 that has more strength than the existing. In this they are fulfilling basic security principle i.e. integrity.
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