Decrypt a JWE into BinData

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.DecryptBd, which decrypts a recipient of a loaded JWE and writes the plaintext bytes into a BinData.

var success = false;

var jwe = new CkJwe();

//  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 bytes into a BinData.
var bd = new CkBinData();
success = jwe.DecryptBd(0,bd);
if (success == false) {
    console.log(jwe.LastErrorText);
    return;
}

console.log("Decrypted " + bd.NumBytes + " bytes.");