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.

#include <CkJweW.h>
#include <CkBinDataW.h>

void ChilkatSample(void)
    {
    bool success = false;

    CkJweW jwe;

    //  Load the JWE compact serialization to be decrypted.
    const wchar_t *jweCompact = L"eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>";
    success = jwe.LoadJwe(jweCompact);
    if (success == false) {
        wprintf(L"%s\n",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.
    const wchar_t *base64Key = L"YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXowMTIzNDU=";
    success = jwe.SetWrappingKey(0,base64Key,L"base64");
    if (success == false) {
        wprintf(L"%s\n",jwe.lastErrorText());
        return;
    }

    //  Decrypt recipient index 0, writing the plaintext bytes into a BinData.
    CkBinDataW bd;
    success = jwe.DecryptBd(0,bd);
    if (success == false) {
        wprintf(L"%s\n",jwe.lastErrorText());
        return;
    }

    wprintf(L"Decrypted %d bytes.\n",bd.get_NumBytes());
    }