Cryptography

Supported platforms:
Available since: Gideros 2016.04

Description

Cryptographic primitives.

Example

local key = "GiderosGideros11"
local iv = "GiderosRules2023"
local paddingType = 1


local function cryptCopy(src, dst)
	local srcf = io.open(src, "rb")
	local dstf = io.open(dst, "wb")
	local size = 2^13 -- good buffer size (8K)
	while true do
		local block = srcf:read(size)
		if not block then break end
		block = Cryptography.aesEncrypt(block,key,iv,paddingType)
		dstf:write(block)
	end
	srcf:close()
	dstf:close()
end

local function decryptCopy(src, dst)
	local srcf = io.open(src, "rb")
	local dstf = io.open(dst, "wb")
	local size = 2^13 + 16 -- good buffer size (8K + 16 for padding)
	while true do
		local block = srcf:read(size)
		if not block then break end
		block = Cryptography.aesDecrypt(block,key,iv,paddingType)
		dstf:write(block)
	end
	srcf:close()
	dstf:close()
end

cryptCopy ("|D|myfile.sqlite", "C:/tmp/myfile.crypt")
decryptCopy ("C:/tmp/myfile.crypt", "C:/tmp/myfile.sqlite")

Methods Cryptography.aesDecrypt decrypts an AES string Cryptography.aesEncrypt encrypts a string with AES Cryptography.b64 Base64 encode some data Cryptography.md5 computes the MD5 hash of the input string Cryptography.pbkdf2 Password-Based Key Derivation Function 2 Cryptography.sha1 sha1 encode some data Cryptography.unb64 Base64 decode a string

Events Constants

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