https://github.com/moteus/lua-bgcrypto-sha

https://github.com/moteus/lua-bgcrypto-sha

Last synced: 13 days ago
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• Host: GitHub
• URL: https://github.com/moteus/lua-bgcrypto-sha
• Owner: moteus
• License: bsd-2-clause
• Created: 2013-11-19T12:35:14.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2019-05-05T13:36:53.000Z (over 5 years ago)
• Last Synced: 2024-10-17T16:11:00.074Z (27 days ago)
• Language: C
• Size: 106 KB
• Stars: 4
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
lua-bgcrypto-sha

================

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## Digest API ##

### Digest.new() => Digest context

### Each MESSAGE can be present like

 * `message [,offset=1 [, size=]]` if message is string 

 * `message [,offset=1], size` if message is raw pointer to memory (light userdata)

### Digest.digest(MESSAGE [, text = false]) => string

### Digest.pbkdf2(password, salt, iterations, key_length) => string

### digest:update(MESSAGE) => self

### digest:digest([MESSAGE ,] [text = false]) => self

### digest:reset() => self

### digest:clone() => self

## HMAC API ##

### Digest.hmac.new(key) => HMAC Context

### Digest.hmac.digest(key, MESSAGE[, text = false]) => string

### hmac:update(MESSAGE) => self

### hmac:digest([MESSAGE ,] [text = false]) => self

### hmac:reset([key]) => self

### hmac:clone() => self

## Usage ##

```Lua

local sha1 = require "bgcrypto.sha1"

local key = "\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11\11"

local msg = "The quick brown fox jumps over the lazy dog"

print(sha1.digest(msg, true))

print(sha1.hmac.digest(key, msg, true))

local ctx = sha1.new()

for i = 1, #msg do ctx:update(msg, i, 1) end

print(ctx:digest(true))

local ctx = sha1.hmac.new(key)

for i = 1, #msg do ctx:update(msg, i, 1) end

print(ctx:digest(true))

print(ctx:reset(key):update(msg:sub(1, 25)):digest(msg:sub(26), true))

print(string.format("%q", sha1.pbkdf2('secret', '123salt', 1000, 32)))

```

See [AesFileEncrypt](examples/AesFileEncrypt.lua) implementation using `lua-bgcrypto` library.

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