Results 151 to 160 of about 169,330 (191)

Implementation of MD5 Collision Attack in Program

Lecture Notes in Computer Science, 2019
Md5 [1] has been widely used because of its irreversibility, but its security is also questionable. Since Professor Wang [2] pointed out that MD5 is unsafe, Md5 collision and various attack algorithms began to appear and were used in large quantities. In the paper of Bai Honghuan’s MD5 fast collision algorithm [3], the characteristics of MD5 collision ...
Mohan Li
exaly   +2 more sources

Hardware implementation of the MD5 algorithm.

IFAC Postprint Volumes IPPV / International Federation of Automatic Control, 2009
Abstract The paper presents a hardware implementation of the MD5 hash generator. The generator comprises MD5 processing unit, data exchange interface and memory block for storing input messages. A general concept and implementation of the MD5 generator modules is described.
Danuta Pamula, Adam Ziebinski
exaly   +2 more sources

Improved Single-Key Distinguisher on HMAC-MD5 and Key Recovery Attacks on Sandwich-MAC-MD5 and MD5-MAC

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2015
Yu Sasaki, Gaoli Wang
exaly   +2 more sources

MD5 Research

2010 Second International Conference on Multimedia and Information Technology, 2010
This paper describes the MD5 algorithm. It analyses the theories from program codes and sums up some current crack approaches of this algorithm. According to these crack ways, the paper brings forward the corresponding measures for improvement and adopts procedures to achieve a project to prove its ...
Zhao Yong-Xia, Zhen Ge
openaire   +1 more source

MD5-Based Error Detection

2009 Pacific-Asia Conference on Circuits, Communications and Systems, 2009
This paper proposes one kind of MD5-based error-detecting mechanism. The 128-bit MD5 code is compressed into 16-bit error-detecting code in order to substitute for that computed with CRC or checksum. In this mechanism, computer-simulating technology is used to simulate natural and manual attacks.
Hu Ming, Wang Yan
openaire   +1 more source

Improved Collision Attacks on MD4 and MD5

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2007
At Eurocrypt'05, Wang et al. presented efficient collision attacks on MD5 and MD4 hash functions. They found a collision of MD5 with a complexity of less than 237 MD5 hash operations, and a collision of MD4 with complexity less than 28 MD4 hash operations. In their attack, the procedure to generate a collision is divided into 4 steps.
Yu Sasaki, Yusuke Naito 0001, Noboru Kunihiro, Kazuo Ohta   +3 more
openaire   +1 more source

Collisions of MMO-MD5 and Their Impact on Original MD5

2011
In this paper, we find collisions of MD5 in the Matyas-Meyer-Oseas mode and Miyaguchi-Preneel mode with a complexity of 239 operations, which runs contrary to the cryptographer's belief that these modes are stronger against collision attacks than the Davies-Meyer mode due to the impossibility of the message modification.
openaire   +1 more source

A New Collision Attack on MD5

2009 International Conference on Networks Security, Wireless Communications and Trusted Computing, 2009
In 2005, collision resistance of several hash functions was broken by Wang et al. The strategy of determining message differential is the most important part of collision attacks against hash functions. So far, there are only three other message differentials attack published, one of which is 6 bits difference and two are 1 bit difference.
Wang Yu, Chen Jianhua, He Debiao
openaire   +1 more source

An Improved Collision Attack on MD5 Algorithm

2008
The research on the attack algorithm for a MD5 collision is one of the focuses in cryptology nowadays. In this paper, by analyzing the properties of the nonlinear Boolean functions used in MD5 and the differences in term of XOR and subtraction modulo 232, we prove that some sufficient conditions presented by Jie Liang and Xuejia Lai are also necessary ...
Shiwei Chen, Chenhui Jin
openaire   +1 more source

Preimage Attacks on Step-Reduced MD5

2008
In this paper, we propose preimage attacks on step-reduced MD5. We show that a preimage of a 44-step MD5 can be computed to a complexity of 296. We also consider a preimage attack against variants of MD5 where the round order is modified from the real MD5.
Yu Sasaki, Kazumaro Aoki
openaire   +1 more source