Decrypt a JWE into a StringBuilder

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.DecryptSb, which decrypts a recipient of a loaded JWE and writes the plaintext into a StringBuilder.

let jwe = chilkat::Jwe::new();

// Load the JWE compact serialization to be decrypted.
let jwe_compact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>".to_string();
if jwe.load_jwe(&jwe_compact).is_err() {
    println!("{}", jwe.last_error_text());
    return;
}

// The 256-bit key-wrapping key (base64) for recipient index 0.  In production, obtain the key
// from a secure source rather than hard-coding it.
let base64_key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=".to_string();
if jwe.set_wrapping_key(0, &base64_key, "base64").is_err() {
    println!("{}", jwe.last_error_text());
    return;
}

// Decrypt recipient index 0, writing the plaintext into a StringBuilder.
let sb_content = chilkat::StringBuilder::new();
if jwe.decrypt_sb(0, "utf-8", &sb_content).is_err() {
    println!("{}", jwe.last_error_text());
    return;
}

println!("{}", sb_content.get_as_string().unwrap_or_default());