HAS-V: A New Hash Function with Variable Output Length

  • Authors:
  • Nan Kyoung Park;Joon Ho Hwang;Pil Joong Lee

  • Affiliations:
  • -;-;-

  • Venue:
  • SAC '00 Proceedings of the 7th Annual International Workshop on Selected Areas in Cryptography
  • Year:
  • 2000

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Abstract

Hash functions play an essential role in many areas of cryptographic applications such as digital signature, authentication, and key derivation. In this paper, we propose a new hash function with variable output length, namely HAS-V, to meet the needs of various security levels desired among different applications. A great deal of attention was paid to balance the characteristics of security and performance. The use of message expansion, 4-variable Boolean functions, variable and fixed amounts of shifts, and interrelated parallel lines provide a high level of security for HAS-V. Experiments show that HAS-V is about 19% faster than SHA-1, 31% faster than RIPEMD-160, and 26% faster than HAVAL on a Pentium PC.