If MD5 and SHA-1 are the building of the building of the building, now, now, the foundation of these buildings has already had a lot of cracks, even, there is a danger of collapse.
The global academic world is shocked, and the major security system, which is in the US military network is self-dangerous ...
Before 8 months, people also thought that MD5 and SHA-1 in the world were a trusted security digital signature algorithm; today, today, the trusted digital signature system, shocking two The "collision" will force these two most widely signature encryption algorithms.
MD5 and SHA-1 The most extensive digital signature encryption algorithm was crackled from Mathematics, Shandong University, and the industry was shocked, and it also began to reflect on the digital sign name algorithm system today. my country in 2005. The "Electronic Signature Law" implemented on April 1 also began to withstand various pressures.
Two "collision" shocked the world
In his participation in the 2004 International Cryptographic Conference (CRYPTO'2004), "A awakening, everything has changed." Professor Wang Xiaoyun from China Shandong University Deciphering the report of the MD5, HAVAL-128, MD4 and RIPEMD algorithms on Crypto'2004, which is shocked by the international top cryptography experts. The summary report of the meeting wrote this: "What should we do? MD5 is hit hard, it will be eliminated from the application. SHA-1 is still alive, but I also see its end. Now I have to start replacement SHA- 1. "
The MD5 algorithm is a digital signature encryption algorithm issued in 1991. It has solved the security defects of the MD4 algorithm and become an application very widely used. As an application example of the Hash function, the MD5 itself also has a vulnerability, but in more than ten years of research and application, people have not found the technology that can quickly crack the algorithm in an acceptable time and computing power, thus Specification
