Lua

Simple AES ECB Decryption

See more Encryption Examples

Decrypt 256-bit encrypted content. Lua

local chilkat = require("chilkat")

-- This example assumes the Chilkat API to have been previously unlocked.
-- See Global Unlock Sample for sample code.

local crypt = chilkat.Crypt2.new()

-- Encrypted content (base64-encoded)
local ct = "d/95VziAnUNKkpXr3dJBFcQqAEDWlDkc7EU2jLkYPxmr6PpLRJlgHos+/Uy28CvJsmztQ3JkJAMukVoj46QJ/7RMuqLb31cSKd1ZvMzx9J9b6q0EkmPJcSfBhf2x7v5Qvq3lz1EIH7RM61cDGf+g9p4lt6FtU2MzCqtYD+Vr29voCn5WU1CnXmks64RrbyDA1DDHOx2deJ4Kn68+KoPM9tAw9kbf4HApL1nJYU3Mfzl+MnuHuB2kJpL5GqbuNvS+4QjxuwtNGuZEEY0gOS4RIvWl/XfkxtWHMkzsKy08AO792xDGer4rL4Q1NcfI/H2V"

-- 256-bit AES key (literally the 32 us-ascii bytes of this string)
local key = "sQsPQYesBM5qEM5OSxicFatIiLM459Bu"

-- Note: If your AES key is a string, and it's not clearly hex or base64, AND if the length of the string is the exact size of the AES key,
-- then *literally* use the ascii chars as the AES key.

crypt.crypt_algorithm = "aes"
crypt.cipher_mode = "ecb"
crypt.key_length = 256
-- use the exact ascii bytes as the key.
crypt:set_encoded_key(key, "ascii")
crypt.encoding_mode = "base64"

local pt = crypt:decrypt_string_enc(ct)

print(pt)