Java

Load RSA Private Key from JWK Format (JSON Web Key)

See more RSA Examples

Demonstrates how to load an RSA private key from JWK (JSON Web Key) format.

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

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.PrivateKey;

public class ChilkatExample {

    public static void main(String[] args) {
        // Note: This example requires Chilkat v9.5.0.66 or later.

        // First build a JWK sample to load..
        JsonObject json = new JsonObject();
        json.updateString("kty", "RSA");
        json.updateString("n", "33TqqLR3eeUmDtHS89qF3p4MP7Wfqt2Zjj3lZjLjjCGDvwr9cJNlNDiuKboODgUiT4ZdPWbOiMAfDcDzlOxA04DDnEFGAf-kDQiNSe2ZtqC7bnIc8-KSG_qOGQIVaay4Ucr6ovDkykO5Hxn7OU7sJp9TP9H0JH8zMQA6YzijYH9LsupTerrY3U6zyihVEDXXOv08vBHk50BMFJbE9iwFwnxCsU5-UZUZYw87Uu0n4LPFS9BT8tUIvAfnRXIEWCha3KbFWmdZQZlyrFw0buUEf0YN3_Q0auBkdbDR_ES2PbgKTJdkjc_rEeM0TxvOUf7HuUNOhrtAVEN1D5uuxE1WSw");
        json.updateString("e", "AQAB");
        json.updateString("d", "DjU54mYvHpICXHjc5-JiFqiH8NkUgOG8LL4kwt3DeBp9bP0-5hSJH8vmzwJkeGG9L79EWG4b_bfxgYdeNX7cFFagmWPRFrlxbd64VRYFawZHRJt-2cbzMVI6DL8EK4bu5Ux5qTiV44Jw19hoD9nDzCTfPzSTSGrKD3iLPdnREYaIGDVxcjBv3Tx6rrv3Z2lhHHKhEHb0RRjATcjAVKV9NZhMajJ4l9pqJ3A4IQrCBl95ux6Xm1oXP0i6aR78cjchsCpcMXdP3WMsvHgTlsZT0RZLFHrvkiNHlPiil4G2_eHkwvT__CrcbO6SmI_zCtMmypuHJqcr-Xb7GPJoa64WoQ");
        json.updateString("p", "8K33pX90XX6PZGiv26wZm7tfvqlqWFT03nUMvOAytqdxhO2HysiPn4W58OaJd1tY4372Qpiv6enmUeI4MidCie-s-d0_B6A0xfhU5EeeaDN0xDOOl8yN-kaaVj9b4HDR3c91OAwKpDJQIeJVZtxoijxl-SRx3u7Vs_7meeSpOfE");
        json.updateString("q", "7a5KnUs1pTo72A-JquJvIz4Eu794Yh3ftTk_Et-83aE_FVc6Nk-EhfnwYSNpVmM6UKdrAoy5gsCvZPxrq-eR9pEwU8M5UOlki03vWY_nqDBpJSIqwPvGHUB16zvggsPQUyQBfnN3N8XlDi12n88ltvWwEhn1LQOwMUALEfka9_s");
        json.updateString("dp", "DB9nGuHplY_7Xv5a5UCs5YgxkWPtJFfbIZ1Zr-XHCCY09JIWReOGQG226OhjwixKtOK_OqmAKtMKM9OmKviJRHNbDhbTxumN3u7cL8dftjXpSryiEQlPmWyW94MneI2WNIrvh4wruQuDt8EztgOiDFxwcnUgey8iend7WmZnE7E");
        json.updateString("dq", "O-bSTUQ4N_UuQezgkF3TDrnBraO67leDGwRbfiE_U0ghQvqh5DA0QSPVzlWDZc9KUitvj8vxsR9o1PW9GS0an17GJEYuetLnkShKK3NWOhBBX6d1yP9rVdH6JhgIJEy_g0Suz7TAFiFc8i7JF8u4QJ05C8bZAMhOLotqftQeVOM");
        json.updateString("qi", "InfGmkb2jNkPGuNiZ-mU0-ZrOgLza_fLL9ErZ35jUPhGFzdGxJNobklvsNoTd-E2GAU41YkJh24bncMLvJVYxHHA5iF7FBWx1SvpEyKVhhnIcuXGD7N5PbNZzEdmr9C6I7cPVkWO-sUV7zfFukexIcANmsd_oBBGKRoYzP5Tti4");

        // The JSON contains the following:
        // {
        //   "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"
        // }

        // Note: The JSON can contain other members, such as "use", "kid", or anything else.  These will be ignored.
        json.setEmitCompact(false);

        // Show the JWK string to be loaded:
        String jwkStr = json.emit();

        PrivateKey privKey = new PrivateKey();
        try {
            privKey.loadJwk(jwkStr);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // OK.. the JWK is loaded.  It can be used in whatever way desired...

        // The key can be retrieved in any other format, such as XML or PEM..
        System.out.println(privKey.getXml());

        // XML output:
        // <RSAKeyValue>
        //     <Modulus>33TqqLR3eeUmDtHS89qF3p4MP7Wfqt2Zjj3lZjLjjCGDvwr9cJNlNDiuKboODgUiT4ZdPWbOiMAfDcDzlOxA04DDnEFGAf+kDQiNSe2ZtqC7bnIc8+KSG/qOGQIVaay4Ucr6ovDkykO5Hxn7OU7sJp9TP9H0JH8zMQA6YzijYH9LsupTerrY3U6zyihVEDXXOv08vBHk50BMFJbE9iwFwnxCsU5+UZUZYw87Uu0n4LPFS9BT8tUIvAfnRXIEWCha3KbFWmdZQZlyrFw0buUEf0YN3/Q0auBkdbDR/ES2PbgKTJdkjc/rEeM0TxvOUf7HuUNOhrtAVEN1D5uuxE1WSw==</Modulus>
        //     <Exponent>AQAB</Exponent>
        //     <D>DjU54mYvHpICXHjc5+JiFqiH8NkUgOG8LL4kwt3DeBp9bP0+5hSJH8vmzwJkeGG9L79EWG4b/bfxgYdeNX7cFFagmWPRFrlxbd64VRYFawZHRJt+2cbzMVI6DL8EK4bu5Ux5qTiV44Jw19hoD9nDzCTfPzSTSGrKD3iLPdnREYaIGDVxcjBv3Tx6rrv3Z2lhHHKhEHb0RRjATcjAVKV9NZhMajJ4l9pqJ3A4IQrCBl95ux6Xm1oXP0i6aR78cjchsCpcMXdP3WMsvHgTlsZT0RZLFHrvkiNHlPiil4G2/eHkwvT//CrcbO6SmI/zCtMmypuHJqcr+Xb7GPJoa64WoQ==</D>
        //     <P>8K33pX90XX6PZGiv26wZm7tfvqlqWFT03nUMvOAytqdxhO2HysiPn4W58OaJd1tY4372Qpiv6enmUeI4MidCie+s+d0/B6A0xfhU5EeeaDN0xDOOl8yN+kaaVj9b4HDR3c91OAwKpDJQIeJVZtxoijxl+SRx3u7Vs/7meeSpOfE=</P>
        //     <Q>7a5KnUs1pTo72A+JquJvIz4Eu794Yh3ftTk/Et+83aE/FVc6Nk+EhfnwYSNpVmM6UKdrAoy5gsCvZPxrq+eR9pEwU8M5UOlki03vWY/nqDBpJSIqwPvGHUB16zvggsPQUyQBfnN3N8XlDi12n88ltvWwEhn1LQOwMUALEfka9/s=</Q>
        //     <DP>DB9nGuHplY/7Xv5a5UCs5YgxkWPtJFfbIZ1Zr+XHCCY09JIWReOGQG226OhjwixKtOK/OqmAKtMKM9OmKviJRHNbDhbTxumN3u7cL8dftjXpSryiEQlPmWyW94MneI2WNIrvh4wruQuDt8EztgOiDFxwcnUgey8iend7WmZnE7E=</DP>
        //     <DQ>O+bSTUQ4N/UuQezgkF3TDrnBraO67leDGwRbfiE/U0ghQvqh5DA0QSPVzlWDZc9KUitvj8vxsR9o1PW9GS0an17GJEYuetLnkShKK3NWOhBBX6d1yP9rVdH6JhgIJEy/g0Suz7TAFiFc8i7JF8u4QJ05C8bZAMhOLotqftQeVOM=</DQ>
        //     <InverseQ>InfGmkb2jNkPGuNiZ+mU0+ZrOgLza/fLL9ErZ35jUPhGFzdGxJNobklvsNoTd+E2GAU41YkJh24bncMLvJVYxHHA5iF7FBWx1SvpEyKVhhnIcuXGD7N5PbNZzEdmr9C6I7cPVkWO+sUV7zfFukexIcANmsd/oBBGKRoYzP5Tti4=</InverseQ>
        // </RSAKeyValue>

        System.out.println(privKey.getPkcs8EncryptedPem("secret"));

        // PEM output

        // -----BEGIN ENCRYPTED PRIVATE KEY-----
        // MIIFDjBABgkqhkiG9w0BBQ0wMzAbBgkqhkiG9w0BBQwwDgQIRp9eD6gS5x4CAggA
        // MBQGCCqGSIb3DQMHBAgMYSDcTKD+UASCBMgAtoYFncjSiep51R2qhK0j5RLsPdCD
        // tb3GiwJJycYkMMpbOCVIBNtDMDRrAuTQmdDjFAgKkfktT0p1fLd0RHAv4JKWrDeE
        // OsV1BS1pJgI6ulEJVs7nwV9y6JkzuqIiguVM1ukYm8uwjVwKBQtOg9jZjE7uLqSs
        // X508rEI3BNxKeD5VMpIDzh+nil5pG3AC74/yAJFJop5J+dcoYgTIVwwcWsieKpCD
        // wgTmXQ53tYGtudC4HM3Wtp2PHdg6jDVZFeXkjbcJFKsmalw9wCDOUvE64onUqyhf
        // z/8Thu2g3Bs4rYXflEbIbsxqYit7wM5nLAvqByKdOUdmOLLsj0PlnN+ZA9+JRmnI
        // bOHUg+XxvreRdphXeNeUF16ro22c9TMyjSXiEP6RvrEcyoi0UnVeeCKjO90q10n3
        // TQdIFMkY1gwgUuBo+OUtZPTkbrFA33e9NiHc/OiHVETDHYO/WEceu2ef6mSjcw+C
        // Q6WMR6EH24eXUfoI4xaNexGaR7w2EkU1UfGqs6f+c4siZMPExm41H2Xc/MBOpmES
        // iQxoinajiiw4DOQ08Cs/hVAm4/dH9XhCnBIig+PZpmeOZGoeyK2D57czLaTPBHdH
        // Jr7sZ/pe9vk84DAeQw0nxRbatxBqw2Zq0r6kjmwljRKNlJXGuPlfw0ooOH8F4c+E
        // e8XwrPKsOe14u4plP5H0u5N+JVBJGJdGQOuFGKU7Flw0hgEdwdyxHv5dDmPyhtyR
        // Ty1YjYyGQZxWLxw4Q2qJwpikL6o8ylXegSr20aeHFDvtCY63UFLxvZ4pDnCxOIR8
        // xXJJy179t6BbCPQao4c5U/PRsahgUn/XjKL0lXFUyWoX6Rehr8Zmr+RZFaVhG4WO
        // ZodH2CzYNv6co7bfLKLa9u1NHPfTVTVxZTYKw/tuPGscVVhXptPDCjHqOvCtX+pS
        // +oshZ1SwM/0MgDmJfyJ0rDkkjBDsv5x5iJV9jmx/DAlGhOR7Is9xgjx5XEXD8oug
        // fVQI2ZpZqQ1EAPCGKfQl7XUMwN4S0cmYf/xS5afNMyABJGj0wUdF3YlHxkz+wkeE
        // poQ/1EVQLCTVcJBrbbpkJAgUFFwOm6o8behxgVr3yHuO6zuFi5rXVqnztm9JYMRj
        // H3ACb14wRR2ctyZovPvZpODywH1K7kfIdRn9UE/o21HfnhtdUJEFPTS16mjGsJpx
        // E5aSCXVrvrb/JqHpSvNRpKlHWV9nxuONzqBX3QKa5X/31opPI7qEBYND0oHuH/cB
        // BYlstKCUhb4hmg4M6qwA7qC5aLJVoz8toWA4cv0JhhVqnR1jcsyq+r4zusdiEJ2I
        // kW5F9u0zNLa8xHByz3Qr6wTMBu3NY3w9NFwIXXq2lkrxDlvHFjMImdXFzb/G1fbc
        // 7BDIOwPrEffb0yEsgHxJVHE3NPZJOrbLquS7M8IFjhoky6QxesaU/QLjyMMKphrQ
        // EdmBRwKsYHS9BdX4YawtCRjJd3n+z2guF+dIHDvIZVgL1Ednu7G654gVl+MJVIHo
        // Wc7pGOc3PRaAEPRF9O0Smwwr+x1qRedoCVhLc3idWPAW+dOTpZUbTSB21D/Q8vdr
        // QJ0fNbTa4AGLLoMOp0rZI1ji6ghcMqz5FqyhDqawSV7je6Z/EE0DRwzRZ1mRwykF
        // Qe0=
        // -----END ENCRYPTED PRIVATE KEY-----
    }
}