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Egor-Skriptunoff/pure_lua_SHA: SHA1, SHA2, SHA3, BLAKE2 and BLAKE3 functions wri ...

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开源软件名称(OpenSource Name):

Egor-Skriptunoff/pure_lua_SHA

开源软件地址(OpenSource Url):

https://github.com/Egor-Skriptunoff/pure_lua_SHA

开源编程语言(OpenSource Language):

Lua 100.0%

开源软件介绍(OpenSource Introduction):

pure_lua_SHA

SHA-1, SHA-2, SHA-3, BLAKE2 and BLAKE3 functions written in pure Lua and optimized for speed.


Installation

Just copy sha2.lua to Lua modules' folder.


Description

This module provides functions to calculate SHA digest.
This is a pure-Lua module, compatible with Lua 5.1, Lua 5.2, Lua 5.3, Lua 5.4, LuaJIT 2.0/2.1 and Fengari.

Main feature of this module: it was heavily optimized for speed.
For every Lua version the module contains particular implementation branch to get benefits from version-specific features.

Supported hashes:

MD5            - sha.md5(message)
SHA-1          - sha.sha1(message)
-- SHA2
SHA-224        - sha.sha224(message)
SHA-256        - sha.sha256(message)
SHA-384        - sha.sha384(message)
SHA-512        - sha.sha512(message)
SHA-512/224    - sha.sha512_224(message)
SHA-512/256    - sha.sha512_256(message)
-- SHA3
SHA3-224       - sha.sha3_224(message)
SHA3-256       - sha.sha3_256(message)
SHA3-384       - sha.sha3_384(message)
SHA3-512       - sha.sha3_512(message)
SHAKE128       - sha.shake128(digest_size_in_bytes, message)
SHAKE256       - sha.shake256(digest_size_in_bytes, message)
-- HMAC (applicable to any hash function mentioned above except SHAKE)
HMAC           - sha.hmac(sha.any_hash_func, key, message)
-- BLAKE2
BLAKE2b        - sha.blake2b(message, key, salt, digest_size_in_bytes)
BLAKE2s        - sha.blake2s(message, key, salt, digest_size_in_bytes)
BLAKE2bp       - sha.blake2bp(message, key, salt, digest_size_in_bytes)
BLAKE2sp       - sha.blake2sp(message, key, salt, digest_size_in_bytes)  -- BLAKE2sp is used in WinRAR and 7-Zip
BLAKE2Xb       - sha.blake2xb(digest_size_in_bytes, message, key, salt)
BLAKE2Xs       - sha.blake2xs(digest_size_in_bytes, message, key, salt)
-- BLAKE2b synonyms for shortened digest:
BLAKE2b-160    - sha.blake2b_160(message, key, salt)  -- BLAKE2b with digest_size_in_bytes = 20
BLAKE2b-256    - sha.blake2b_256(message, key, salt)  -- BLAKE2b with digest_size_in_bytes = 32
BLAKE2b-384    - sha.blake2b_384(message, key, salt)  -- BLAKE2b with digest_size_in_bytes = 48
BLAKE2b-512    - sha.blake2b_512(message, key, salt)  -- BLAKE2b with digest_size_in_bytes = 64 (default size)
-- BLAKE2s synonyms for shortened digest:
BLAKE2s-128    - sha.blake2s_128(message, key, salt)  -- BLAKE2s with digest_size_in_bytes = 16
BLAKE2s-160    - sha.blake2s_160(message, key, salt)  -- BLAKE2s with digest_size_in_bytes = 20
BLAKE2s-224    - sha.blake2s_224(message, key, salt)  -- BLAKE2s with digest_size_in_bytes = 28
BLAKE2s-256    - sha.blake2s_256(message, key, salt)  -- BLAKE2s with digest_size_in_bytes = 32 (default size)
-- BLAKE3
BLAKE3         - sha.blake3(message, key, digest_size_in_bytes)
BLAKE3_KDF     - sha.blake3_derive_key(key_material, context_string, derived_key_size_in_bytes)

Usage

Input data should be provided as a binary string: either as a whole string or as a sequence of substrings ("chunk-by-chunk" loading).
Result (SHA digest) is returned in hexadecimal representation (as a string of lowercase hex digits).

Simplest usage example:

local sha = require("sha2")
local your_hash = sha.sha256("your string")
-- assert(your_hash == "d14d691dac70eada14d9f23ef80091bca1c75cf77cf1cd5cf2d04180ca0d9911")

See file "sha2_test.lua" for more examples.


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