Zig

PBES2 Password-Based Encryption

See more Encryption Examples

Demonstrates PBES2 encryption 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();

    // Set properties for PBES2 encryption:

    // When the encryption algorithm is set to "pbes2",
    // Chilkat will automatically derive the actual secret key using PBKDF2 and
    // the specified paramters: password, salt, iteration count, hash function, and desired key length.

    crypt.setCryptAlgorithm("pbes2");
    crypt.setPbesPassword("mySecretPassword");

    // Set the underlying PBE algorithm (and key length):
    crypt.setPbesAlgorithm("aes");
    crypt.setKeyLength(256);

    crypt.setEncodedIV("000102030405060708090A0B0C0D0E0F", "hex");

    // Give it some salt:
    crypt.setEncodedSalt("0102030405060708", "hex");

    // A higher iteration count makes the algorithm more
    // computationally expensive and therefore exhaustive
    // searches (for breaking the encryption) is more difficult:
    crypt.setIterationCount(1024);

    // A hash algorithm needs to be set for PBES2:
    crypt.setHashAlgorithm("sha256");

    // Indicate that the encrypted bytes should be returned
    // as a hex string:
    crypt.setEncodingMode("hex");

    const plain_text = "To be encrypted.";

    const encrypted_text = try crypt.encryptStringENC(alloc, plain_text);

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

    // Now decrypt:
    const decrypted_text = try crypt.decryptStringENC(alloc, encrypted_text);

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