Cryptographic hash functions

Gauravaram, Praveen & Knudsen, Lars R. (2010) Cryptographic hash functions. In Stavroulakis, Peter & Stamp, Mark (Eds.) Handbook of Information and Communication Security. Springer, Heidelberg, pp. 59-79.

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Cryptographic hash functions are an important tool of cryptography and play a fundamental role in efficient and secure information processing. A hash function processes an arbitrary finite length input message to a fixed length output referred to as the hash value. As a security requirement, a hash value should not serve as an image for two distinct input messages and it should be difficult to find the input message from a given hash value. Secure hash functions serve data integrity, non-repudiation and authenticity of the source in conjunction with the digital signature schemes. Keyed hash functions, also called message authentication codes (MACs) serve data integrity and data origin authentication in the secret key setting. The building blocks of hash functions can be designed using block ciphers, modular arithmetic or from scratch. The design principles of the popular Merkle–Damgård construction are followed in almost all widely used standard hash functions such as MD5 and SHA-1.

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ID Code: 81174
Item Type: Book Chapter
DOI: 10.1007/978-3-642-04117-4_4
ISBN: 9783642041174
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2010 Springer
Deposited On: 23 Jan 2015 00:49
Last Modified: 24 Jun 2017 00:01

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