The Reliable USB Formatting Utility

A generic cross-platform C library that includes many commonly used components and frameworks, and a new scripting language interpreter. It currently supports C99 and Aspect-Oriented Programming (AOP).

Public Domain C Library of Cryptographic functions. Including: MD5, SHA1, SHA256, SHA512, RC4, AES, AES-CTR, AES-OFB, AES-CBC

A cross-platform desktop utility for computing message digests or checksums

A script language of time-sharing scheduling coroutine in single thread

安卓逆向相关文章中的示例代码（Sample code in Android reverse engineering articles）

SHA-2 algorithm implementations

C64 Bitcoin miner

Lean cryptographic library usable for bare-metal environments

Hashing tool supporting md5,sha1,sha256,sha512,whirlpool,jh and hmac versions of these. Includes recursive file hashing and other features.

SHA-256 algorithm implementation (С/С++)

Performance Evaluation of SHA-256 using SHA New Instructions.

ASICseer Pool: Fast, C-based, multithreaded mining pool software for Bitcoin Cash

Cryptographic suite for Arduino (SHA, HMAC-SHA)

sha256, hmac with sha256 and pbkdf2 with hmac-sha256 in one header file

secretbase - Cryptographic Hash, Extendable-Output and Binary/Text Encoding Functions

Much like John the Ripper, without all the fancy shit. Just reads from a wordlist and cracks those hashes.

C Crypto library supporting DES, AES128, SHA256, CCM-AES128, ECDSA, ECDH, PKCS#1 v1.5

All Cryptography Algorithms are implemented in C.

Easily compare SHA/BLAKE2 sums.