Large collection of hashing functions on Github
Maciej Czyzewski collected on Github a collection of source codes for various hashing algorithms : for computing checksums, non-cryptographic and cryptographic.
In the repository you can find, for example, the implementation of CRC / MD5 / GOST 34.311-95 / SHA-3. Each hash function is represented by a source code in C and a makefile to build it. Algorithms are supposed to be used for learning purposes - in real projects it is recommended to use existing libraries (for example, Crypto ++ for C ++, BouncyCastle for Java, etc.), which are listed in the repository, for security purposes.
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Active work continues on the repository, so in the future it is worth waiting for the collection to be replenished.
Github
Hash Funk Overview
Hash functions are functions designed to “compress” an arbitrary message or data set, usually written in a binary alphabet, into some bit combination of a fixed length, called convolution. Hash functions have a variety of uses for conducting statistical experiments, testing logic devices, and building fast search algorithms and checking the integrity of records in databases. The main requirement for hash functions is the uniform distribution of their values ​​with a random choice of argument values.
A cryptographic hash function is any hash function that is crypto-resistant, that is, satisfies a number of requirements specific to cryptographic applications. In cryptography, hash functions are used to solve the following tasks:
- building data integrity control systems during their transfer or storage,
- data source authentication.
http://habrahabr.ru/post/93226/
A cryptographic hash function is any hash function that is crypto-resistant, that is, satisfies a number of requirements specific to cryptographic applications. In cryptography, hash functions are used to solve the following tasks:
- building data integrity control systems during their transfer or storage,
- data source authentication.
http://habrahabr.ru/post/93226/
Source: https://habr.com/ru/post/247279/
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