Rust

ClickBank Decrypt Instant Notification

See more ClickBank Examples

Demonstrates how to decrypt a ClickBank instant notification. See Instant Notification Service for more information and alternative code snippets. Rust

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

// secret key from your ClickBank account
let secret_key = "MY_SECRET_KEY".to_string();

let json_str = "{\"notification\":\"BASE64_NOTIFICATION\",\"iv\":\"BASE64_IV\"}".to_string();

let json = chilkat::JsonObject::new();
let _ = json.load(&json_str).is_ok();

// Get the encrypted notification (binary) and IV from the JSON.
let bd_notif = chilkat::BinData::new();
let bd_iv = chilkat::BinData::new();

let _ = bd_notif.append_encoded(&json.string_of("notification").unwrap_or_default(), "base64").is_ok();
let _ = bd_iv.append_encoded(&json.string_of("iv").unwrap_or_default(), "base64").is_ok();

// Get an SHA1 digest (as a hex string) of the secret key.
// A SHA1 digest is 20 bytes.  Therefore the hex string is 40 chars.
// Treat each us-ascii char as a binary byte of the secret key.
// 256-bit AES needs a 256-bit key, which is 32-bytes.  Therefore
// use the 1st 32 us-ascii chars of the hex SHA1 as the AES secret key.

let crypt = chilkat::Crypt2::new();
// Because we're using the hex string as the actual AES key, it matters whether the hex is uppercase or lowercase.
// We want lowercase.
crypt.set_encoding_mode("hex_lower");
crypt.set_hash_algorithm("sha1");
let hex_sha1 = crypt.hash_string_enc(&secret_key).unwrap_or_default();
println!("{}", hex_sha1);

// Treat the hex string as binary data for the AES key..
let bd_key = chilkat::BinData::new();
let _ = bd_key.append_string(&hex_sha1, "us-ascii");
let _ = bd_key.remove_chunk(32, 8);

crypt.set_key_length(256);
crypt.set_crypt_algorithm("aes");
crypt.set_cipher_mode("cbc");

// We can use any encoding because were just getting the binary bytes in an encoding, and then setting from the same encoding.
// We'll just use base64..
crypt.set_encoded_iv(&bd_iv.get_encoded("base64").unwrap_or_default(), "base64");
crypt.set_encoded_key(&bd_key.get_encoded("base64").unwrap_or_default(), "base64");

let _ = crypt.decrypt_bd(&bd_notif);
println!("Decrypted: {}", bd_notif.get_string("utf-8").unwrap_or_default());