HAS-V

1 Specification

• digest size: 128 - 320 bits
• max. message length: < 2⁶⁴ bits
• compression function: 1024-bit message block, 320-bit chaining variable
• Specification:

Nan Kyoung Park, Joon Ho Hwang, Pil Joong Lee - HAS-V: A New Hash Function with Variable Output Length

Selected Areas in Cryptography 2012:202-216,2000

http://link.springer.de/link/service/series/0558/bibs/2012/20120202.htm
Bibtex

Author : Nan Kyoung Park, Joon Ho Hwang, Pil Joong Lee
Title : HAS-V: A New Hash Function with Variable Output Length
In : Selected Areas in Cryptography -
Address :
Date : 2000

2 Cryptanalysis

2.1 Best Known Results

Mendel and Rijmen show weaknesses in the compression function of HAS-V. They present pseudo-collisions for HAS-V for all output sizes. Furthermore, they show a preimage and second preimage attack on HAS-V (with output size >160) with complexity of about 2¹⁶² compression function evaluations.

---

2.2 Generic Attacks

• Generic Attacks on the Merkle-Damgaard Construction

---

---

---

---

2.6 Others

Florian Mendel, Vincent Rijmen - Weaknesses in the HAS-V Compression Function

ICISC 4817:335-345,2007

http://dx.doi.org/10.1007/978-3-540-76788-6_27
Bibtex

Author : Florian Mendel, Vincent Rijmen
Title : Weaknesses in the HAS-V Compression Function
In : ICISC -
Address :
Date : 2007