SHA1 Class (System.Security.Cryptography) | …

InfoQ - 促进软件开发及相关领域知识与创新的传播 … InfoQ是一个实践驱动的社区资讯站点，致力于促进软件开发及相关领域知识与创新的传播。提供架构，云计算，AI，前端，大数据，Java，软件开发，编程等技术资讯及技术会议，搭建连接中国技术高端社区与国际主流技术社区的桥梁。 Git fscked by SHA-1 collision? Not so fast, says Linus 2017-2-26 · Secondly, the nature of this particular SHA1 attack means that it's actually pretty easy to mitigate against, and there's already been two sets of patches posted for that mitigation. The reason mitigation is “pretty easy”, he explained, is that to generate a collision, the attacker has to control both the “good” object and the “bad PBKDF2+HMAC hash collisions explained · Mathias Bynens PBKDF2_HMAC_SHA1(chosen_password) == PBKDF2_HMAC_SHA1(HEX_TO_STRING(SHA1(chosen_password))) Note that the smallest password of the two always has a length of 20 characters, because SHA1 hashes always consist of exactly 40 hexadecimal digits representing 20 bytes. The First Collision for Full SHA-1 | SpringerLink

2017-2-23 · SHA-1（英语：Secure Hash Algorithm 1，中文名：安全散列算法1）是一种密码散列函数，美国国家安全局设计，并由美国国家标准技术研究所（NIST）发布为联邦数据处理标准（FIPS）。 SHA-1可以生成一个被称为消息摘要的160位（20字节）散列值，散列值通常的呈现形式为40个十六进制数。

From Collisions to Chosen-Pre x Collisions Application to 2019-5-22 · collision attack against SHA-1 has complexity 261 on CPU [Ste13], and 264:7 when implemented on GPU [SBK+17], while the best chosen-pre x collision attack has complexity 277:1 [SKP16]. Even though SHA-1 has been broken in 2004, it is still deployed in many security systems, because collision attacks do not seem to directly threaten most SHA1 Collision Signals the End of the Algorithm’s

Android生成APK后目录中META-INF目录文件解析 Android开发环境对每一个需要Release的APK都会进行签名，在APK文件被安装时，Android系统会对APK的签名信息进行比对，以此来判断程序的完整性，最终确定APK是否可以正常安装使用，一定程度上达到安全

Not disputing that this SHA1 collision does not signal any immediate emergency, just pointing out that git is used in different ways by different people, and some of those uses very much do depend on git's SHA1 for security. cben on Feb 26, 2017. Another case where git uses SHA1 is submodules. You audit libfoo's well-regarded v1.3.3.7 release Comparing Hash Algorithms: Md5, Sha1 or … 2013-4-2 · Some collision attacks against Sha1 exist but are not currently practical as the CPU power required is estimated as costing almost $3 million for each hash. Even if Sha1 can be considered acceptable for most uses, Sha2 is all-around a better alternative : it is just as fast, more secure, and the only potential downside is the larger space required for storing the hash. [讨论]sha1算法能破解么？ - Ubuntu中文论坛