Zig

Simple AES ECB Decryption

See more Encryption Examples

Decrypt 256-bit encrypted content. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const crypt = try chilkat.Crypt2.init();
    defer crypt.deinit();

    // Encrypted content (base64-encoded)
    const 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)
    const 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.setCryptAlgorithm("aes");
    crypt.setCipherMode("ecb");
    crypt.setKeyLength(256);
    // use the exact ascii bytes as the key.
    crypt.setEncodedKey(key, "ascii");
    crypt.setEncodingMode("base64");

    const pt = try crypt.decryptStringENC(alloc, ct);

    std.debug.print("{s}\n", .{pt});
}