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.

bool success = false;

Chilkat.Jwe jwe = new Chilkat.Jwe();

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

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

Debug.WriteLine(sbContent.GetAsString());