Examples with RSAPublicKeySpec java.security.spec.RSAPublicKeySpec used on opensource projects

Example 46 with RSAPublicKeySpec

use of java.security.spec.RSAPublicKeySpec in project j2objc by google.

the class RSAPublicKeySpecTest method testRSAPublicKeySpec02.

/**
     * Test #2 for <code>RSAPublicKeySpec</code> constructor
     * Assertion: Constructs <code>RSAPublicKeySpec</code>
     * object using valid parameters
     */
public final void testRSAPublicKeySpec02() {
    KeySpec ks = new RSAPublicKeySpec(null, null);
    assertTrue(ks instanceof RSAPublicKeySpec);
}

Example 47 with RSAPublicKeySpec

use of java.security.spec.RSAPublicKeySpec in project j2objc by google.

the class RSAPublicKeyTest method test_getPublicExponent.

/**
     * java.security.interfaces.RSAPublicKey
     * #getPublicExponent()
     */
public void test_getPublicExponent() throws Exception {
    KeyFactory gen = KeyFactory.getInstance("RSA");
    final BigInteger n = BigInteger.valueOf(3233);
    final BigInteger e = BigInteger.valueOf(17);
    RSAPublicKey key = (RSAPublicKey) gen.generatePublic(new RSAPublicKeySpec(n, e));
    assertEquals("invalid public exponent", e, key.getPublicExponent());
}

Example 48 with RSAPublicKeySpec

use of java.security.spec.RSAPublicKeySpec in project druid by alibaba.

the class ConfigTools method encrypt.

public static String encrypt(byte[] keyBytes, String plainText) throws Exception {
    PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyBytes);
    KeyFactory factory = KeyFactory.getInstance("RSA", "SunRsaSign");
    PrivateKey privateKey = factory.generatePrivate(spec);
    Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
    try {
        cipher.init(Cipher.ENCRYPT_MODE, privateKey);
    } catch (InvalidKeyException e) {
        //For IBM JDK, 原因请看解密方法中的说明
        RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) privateKey;
        RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(rsaPrivateKey.getModulus(), rsaPrivateKey.getPrivateExponent());
        Key fakePublicKey = KeyFactory.getInstance("RSA").generatePublic(publicKeySpec);
        cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.ENCRYPT_MODE, fakePublicKey);
    }
    byte[] encryptedBytes = cipher.doFinal(plainText.getBytes("UTF-8"));
    String encryptedString = Base64.byteArrayToBase64(encryptedBytes);
    return encryptedString;
}

Example 49 with RSAPublicKeySpec

use of java.security.spec.RSAPublicKeySpec in project remusic by aa112901.

the class RsaCal method main1.

public static void main1(String[] args) throws Exception {
    // TODO Auto-generated method stub
    HashMap<String, Object> map = RSAUtils.getKeys();
    //生成公钥和私钥
    //     RSAPublicKey publicKey = (RSAPublicKey) map.get("public");
    //     RSAPrivateKey privateKey = (RSAPrivateKey) map.get("private");
    String big1 = "00e0b509f6259df8642dbc35662901477df22677ec152b5ff68ace615bb7b725152b3ab17a876aea8a5aa76d2e417629ec4ee341f56135fccf695280104e0312ecbda92557c93870114af6c9d05c4f7f0c3685b7a46bee255932575cce10b424d813cfe4875d3e82047b97ddef52741d546b8e289dc6935b3ece0462db0a22b8e7";
    String big2 = "010001";
    //  System.out.println(b1.toString());
    // System.out.println(b2.toString());
    RSAPublicKeySpec rsaPubKS = new RSAPublicKeySpec(new BigInteger(big1, 16), new BigInteger(big2, 16));
    KeyFactory kf = KeyFactory.getInstance("RSA");
    RSAPublicKey publicKey = (RSAPublicKey) kf.generatePublic(rsaPubKS);
    //模
    String modulus = publicKey.getModulus().toString();
    //公钥指数
    String public_exponent = publicKey.getPublicExponent().toString();
    System.err.println(modulus);
    System.err.println(public_exponent);
    //私钥指数
    //  String private_exponent = privateKey.getPrivateExponent().toString();
    //明文
    String ming = "628211bf359401b7";
    //使用模和指数生成公钥和私钥
    RSAPublicKey pubKey = RSAUtils.getPublicKey(new BigInteger(big1, 16) + "", new BigInteger(big2, 16) + "");
    // RSAPrivateKey priKey = RSAUtils.getPrivateKey(modulus, private_exponent);
    //加密后的密文
    String mi = RSAUtils.encryptByPublicKey(ming, pubKey);
    System.err.println(mi);
//解密后的明文
//  ming = RSAUtils.decryptByPrivateKey(mi, priKey);
//  System.err.println(ming);
}

Example 50 with RSAPublicKeySpec

use of java.security.spec.RSAPublicKeySpec in project Mycat-Server by MyCATApache.

the class DecryptUtil method encrypt.

public static String encrypt(byte[] keyBytes, String plainText) throws Exception {
    PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyBytes);
    KeyFactory factory = KeyFactory.getInstance("RSA");
    PrivateKey privateKey = factory.generatePrivate(spec);
    Cipher cipher = Cipher.getInstance("RSA");
    try {
        cipher.init(Cipher.ENCRYPT_MODE, privateKey);
    } catch (InvalidKeyException e) {
        //For IBM JDK, 原因请看解密方法中的说明
        RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) privateKey;
        RSAPublicKeySpec publicKeySpec = new RSAPublicKeySpec(rsaPrivateKey.getModulus(), rsaPrivateKey.getPrivateExponent());
        Key fakePublicKey = KeyFactory.getInstance("RSA").generatePublic(publicKeySpec);
        cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.ENCRYPT_MODE, fakePublicKey);
    }
    byte[] encryptedBytes = cipher.doFinal(plainText.getBytes("UTF-8"));
    String encryptedString = Base64.byteArrayToBase64(encryptedBytes);
    return encryptedString;
}