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.

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var jwe = new chilkat.Jwe();

    //  Load the JWE compact serialization to be decrypted.
    var jweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
    success = jwe.LoadJwe(jweCompact);
    if (success == false) {
        console.log(jwe.LastErrorText);
        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.
    var base64Key = "YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
    success = jwe.SetWrappingKey(0,base64Key,"base64");
    if (success == false) {
        console.log(jwe.LastErrorText);
        return;
    }

    //  Decrypt recipient index 0, writing the plaintext into a StringBuilder.
    var sbContent = new chilkat.StringBuilder();
    success = jwe.DecryptSb(0,"utf-8",sbContent);
    if (success == false) {
        console.log(jwe.LastErrorText);
        return;
    }

    console.log(sbContent.GetAsString());

}

chilkatExample();