(Unicode C++) Get RSA Private Key in JWK Format (JSON Web Key)

Demonstrates how to get an RSA private key in JWK (JSON Web Key) format.

Note: This example requires Chilkat v9.5.0.66 or later.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <CkStringBuilderW.h>
#include <CkPrivateKeyW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    // Note: This example requires Chilkat v9.5.0.66 or later.

    // Load a PEM file into memory.
    CkStringBuilderW sbPem;
    bool success = sbPem.LoadFile(L"qa_data/pem/rsa_passwd.pem",L"utf-8");
    if (success != true) {
        wprintf(L"Failed to load PEM file.\n");
        return;
    }

    // Load the PEM into a private key object.
    CkPrivateKeyW privKey;
    success = privKey.LoadEncryptedPem(sbPem.getAsString(),L"passwd");
    if (success != true) {
        wprintf(L"%s\n",privKey.lastErrorText());
        return;
    }

    // Get the private key in JWK format:
    const wchar_t *jwk = privKey.getJwk();

    // The GetJwk method will return the JWK in the most compact JSON format possible,
    // as a single line with no extra whitespace.  To get a more human-readable JWK (for this example),
    // load into a Chilkat JSON object and emit non-compact:

    CkJsonObjectW json;
    json.Load(jwk);
    json.put_EmitCompact(false);
    wprintf(L"RSA Private Key in JWK format:\n");
    wprintf(L"%s\n",json.emit());

    // Sample output:
    // { 
    //   "kty": "RSA",
    //   "n": "33TqqLR3eeUmDtHS89qF3p4MP7Wfqt2Zjj3lZjLjjCGDvwr9cJNlNDiuKboODgUiT4ZdPWbOiMAfDcDzlOxA04DDnEFGAf-kDQiNSe2ZtqC7bnIc8-KSG_qOGQIVaay4Ucr6ovDkykO5Hxn7OU7sJp9TP9H0JH8zMQA6YzijYH9LsupTerrY3U6zyihVEDXXOv08vBHk50BMFJbE9iwFwnxCsU5-UZUZYw87Uu0n4LPFS9BT8tUIvAfnRXIEWCha3KbFWmdZQZlyrFw0buUEf0YN3_Q0auBkdbDR_ES2PbgKTJdkjc_rEeM0TxvOUf7HuUNOhrtAVEN1D5uuxE1WSw",
    //   "e": "AQAB",
    //   "d": "DjU54mYvHpICXHjc5-JiFqiH8NkUgOG8LL4kwt3DeBp9bP0-5hSJH8vmzwJkeGG9L79EWG4b_bfxgYdeNX7cFFagmWPRFrlxbd64VRYFawZHRJt-2cbzMVI6DL8EK4bu5Ux5qTiV44Jw19hoD9nDzCTfPzSTSGrKD3iLPdnREYaIGDVxcjBv3Tx6rrv3Z2lhHHKhEHb0RRjATcjAVKV9NZhMajJ4l9pqJ3A4IQrCBl95ux6Xm1oXP0i6aR78cjchsCpcMXdP3WMsvHgTlsZT0RZLFHrvkiNHlPiil4G2_eHkwvT__CrcbO6SmI_zCtMmypuHJqcr-Xb7GPJoa64WoQ",
    //   "p": "8K33pX90XX6PZGiv26wZm7tfvqlqWFT03nUMvOAytqdxhO2HysiPn4W58OaJd1tY4372Qpiv6enmUeI4MidCie-s-d0_B6A0xfhU5EeeaDN0xDOOl8yN-kaaVj9b4HDR3c91OAwKpDJQIeJVZtxoijxl-SRx3u7Vs_7meeSpOfE",
    //   "q": "7a5KnUs1pTo72A-JquJvIz4Eu794Yh3ftTk_Et-83aE_FVc6Nk-EhfnwYSNpVmM6UKdrAoy5gsCvZPxrq-eR9pEwU8M5UOlki03vWY_nqDBpJSIqwPvGHUB16zvggsPQUyQBfnN3N8XlDi12n88ltvWwEhn1LQOwMUALEfka9_s",
    //   "dp": "DB9nGuHplY_7Xv5a5UCs5YgxkWPtJFfbIZ1Zr-XHCCY09JIWReOGQG226OhjwixKtOK_OqmAKtMKM9OmKviJRHNbDhbTxumN3u7cL8dftjXpSryiEQlPmWyW94MneI2WNIrvh4wruQuDt8EztgOiDFxwcnUgey8iend7WmZnE7E",
    //   "dq": "O-bSTUQ4N_UuQezgkF3TDrnBraO67leDGwRbfiE_U0ghQvqh5DA0QSPVzlWDZc9KUitvj8vxsR9o1PW9GS0an17GJEYuetLnkShKK3NWOhBBX6d1yP9rVdH6JhgIJEy_g0Suz7TAFiFc8i7JF8u4QJ05C8bZAMhOLotqftQeVOM",
    //   "qi": "InfGmkb2jNkPGuNiZ-mU0-ZrOgLza_fLL9ErZ35jUPhGFzdGxJNobklvsNoTd-E2GAU41YkJh24bncMLvJVYxHHA5iF7FBWx1SvpEyKVhhnIcuXGD7N5PbNZzEdmr9C6I7cPVkWO-sUV7zfFukexIcANmsd_oBBGKRoYzP5Tti4"
    // } 
    }