HAS-160

1 Specification

• digest size: 160 bits
• max. message length: < 2⁶⁴ bits
• compression function: 512-bit message block, 160-bit chaining variable
• Specification: http://www.randombit.net/text/has160.html

2 Cryptanalysis

2.1 Best Known Results

The best known attack on HAS-160 is the collision attack of Mendel and Rijmen for 59 (out of 80) steps with a complexity of 2⁵⁵. The best collision example for 53 steps of HAS-160 was also presented by Mendel and Rijmen.

---

2.2 Generic Attacks

• Generic Attacks on the Merkle-Damgaard Construction

---

2.3 Collision Attacks

Florian Mendel, Vincent Rijmen - Colliding Message Pair for 53-Step HAS-160

ICISC 4817:324-334,2007

http://dx.doi.org/10.1007/978-3-540-76788-6_26
Bibtex

Author : Florian Mendel, Vincent Rijmen
Title : Colliding Message Pair for 53-Step HAS-160
In : ICISC -
Address :
Date : 2007

Hong-Su Cho, Sangwoo Park, Soo Hak Sung, Aaram Yun - Collision Search Attack for 53-Step HAS-160

ICISC 4296:286-295,2006

http://dx.doi.org/10.1007/11927587_24
Bibtex

Author : Hong-Su Cho, Sangwoo Park, Soo Hak Sung, Aaram Yun
Title : Collision Search Attack for 53-Step HAS-160
In : ICISC -
Address :
Date : 2006

Aaram Yun, Soo Hak Sung, Sangwoo Park, Donghoon Chang, Seokhie Hong, Hong-Su Cho - Finding Collision on 45-Step HAS-160

ICISC 3935:146-155,2005

http://dx.doi.org/10.1007/11734727_13
Bibtex

Author : Aaram Yun, Soo Hak Sung, Sangwoo Park, Donghoon Chang, Seokhie Hong, Hong-Su Cho
Title : Finding Collision on 45-Step HAS-160
In : ICISC -
Address :
Date : 2005

---

---

---