Examples with PKCS8EncodedKeySpec java.security.spec.PKCS8EncodedKeySpec used on opensource projects

Example 81 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project chuidiang-ejemplos by chuidiang.

the class RSAAsymetricCrypto method loadPrivateKey.

private static PrivateKey loadPrivateKey(String fileName) throws Exception {
    FileInputStream fis = new FileInputStream(fileName);
    int numBtyes = fis.available();
    byte[] bytes = new byte[numBtyes];
    fis.read(bytes);
    fis.close();
    KeyFactory keyFactory = KeyFactory.getInstance("RSA");
    KeySpec keySpec = new PKCS8EncodedKeySpec(bytes);
    PrivateKey keyFromBytes = keyFactory.generatePrivate(keySpec);
    return keyFromBytes;
}

Example 82 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project JustAndroid by chinaltz.

the class SignUtils method sign.

public static String sign(String content, String privateKey) {
    String str = "";
    try {
        Log.e("GFH", "sssssssssssssssss");
        PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(Base64.decode(privateKey));
        KeyFactory keyf = KeyFactory.getInstance(ALGORITHM, "BC");
        PrivateKey priKey = keyf.generatePrivate(priPKCS8);
        java.security.Signature signature = java.security.Signature.getInstance(SIGN_ALGORITHMS);
        signature.initSign(priKey);
        signature.update(content.getBytes(DEFAULT_CHARSET));
        byte[] signed = signature.sign();
        str = Base64.encode(signed);
    } catch (Exception e) {
        Log.e("GFH", "捕获的异常信息==" + e);
    }
    Log.e("GFH", "签名后的str==" + str);
    return str;
}

Example 83 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project JustAndroid by chinaltz.

the class SignUtilsV2 method sign.

public static String sign(String content, String privateKey, boolean rsa2) {
    try {
        PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(Base64V2.decode(privateKey));
        KeyFactory keyf = KeyFactory.getInstance(ALGORITHM);
        PrivateKey priKey = keyf.generatePrivate(priPKCS8);
        java.security.Signature signature = java.security.Signature.getInstance(getAlgorithms(rsa2));
        signature.initSign(priKey);
        signature.update(content.getBytes(DEFAULT_CHARSET));
        byte[] signed = signature.sign();
        return Base64V2.encode(signed);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 84 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project JustAndroid by chinaltz.

the class AbRsa method sign.

/**
     *
     * 获取数字签名.
     * 利用私钥对一个字串进行加密,得到数字签名.是用来证明信息的确来自密钥所有人.然后用公钥解密。
     * @param content     内容
     * @param privateKey  私钥
     * @return  数字签名
     */
public static String sign(String content, String privateKey) {
    try {
        PKCS8EncodedKeySpec priPKCS8 = new PKCS8EncodedKeySpec(AbBase64.decode(privateKey));
        KeyFactory keyf = KeyFactory.getInstance(ALGORITHM);
        PrivateKey priKey = keyf.generatePrivate(priPKCS8);
        java.security.Signature signature = java.security.Signature.getInstance(SIGN_ALGORITHMS);
        signature.initSign(priKey);
        signature.update(content.getBytes(DEFAULT_CHARSET));
        byte[] signed = signature.sign();
        return AbBase64.encode(signed);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

Example 85 with PKCS8EncodedKeySpec

use of java.security.spec.PKCS8EncodedKeySpec in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreTest method testKeyStore_SetEntry_PrivateKeyEntry_Overwrites_PrivateKeyEntry_Encrypted_Success.

public void testKeyStore_SetEntry_PrivateKeyEntry_Overwrites_PrivateKeyEntry_Encrypted_Success() throws Exception {
    setupPassword();
    mKeyStore.load(null, null);
    final KeyFactory keyFact = KeyFactory.getInstance("RSA");
    final CertificateFactory f = CertificateFactory.getInstance("X.509");
    // Start with PrivateKeyEntry
    {
        PrivateKey expectedKey = keyFact.generatePrivate(new PKCS8EncodedKeySpec(FAKE_RSA_KEY_1));
        final Certificate[] expectedChain = new Certificate[2];
        expectedChain[0] = f.generateCertificate(new ByteArrayInputStream(FAKE_RSA_USER_1));
        expectedChain[1] = f.generateCertificate(new ByteArrayInputStream(FAKE_RSA_CA_1));
        PrivateKeyEntry expected = new PrivateKeyEntry(expectedKey, expectedChain);
        mKeyStore.setEntry(TEST_ALIAS_1, expected, null);
        Entry actualEntry = mKeyStore.getEntry(TEST_ALIAS_1, null);
        assertNotNull("Retrieved entry should exist", actualEntry);
        assertTrue("Retrieved entry should be of type PrivateKeyEntry", actualEntry instanceof PrivateKeyEntry);
        PrivateKeyEntry actual = (PrivateKeyEntry) actualEntry;
        assertPrivateKeyEntryEquals(actual, "RSA", FAKE_RSA_KEY_1, FAKE_RSA_USER_1, FAKE_RSA_CA_1);
    }
    // TODO make entirely new test vector for the overwrite
    // Replace with PrivateKeyEntry
    {
        PrivateKey expectedKey = keyFact.generatePrivate(new PKCS8EncodedKeySpec(FAKE_RSA_KEY_1));
        final Certificate[] expectedChain = new Certificate[2];
        expectedChain[0] = f.generateCertificate(new ByteArrayInputStream(FAKE_RSA_USER_1));
        expectedChain[1] = f.generateCertificate(new ByteArrayInputStream(FAKE_RSA_CA_1));
        PrivateKeyEntry expected = new PrivateKeyEntry(expectedKey, expectedChain);
        mKeyStore.setEntry(TEST_ALIAS_1, expected, null);
        Entry actualEntry = mKeyStore.getEntry(TEST_ALIAS_1, null);
        assertNotNull("Retrieved entry should exist", actualEntry);
        assertTrue("Retrieved entry should be of type PrivateKeyEntry", actualEntry instanceof PrivateKeyEntry);
        PrivateKeyEntry actual = (PrivateKeyEntry) actualEntry;
        assertPrivateKeyEntryEquals(actual, "RSA", FAKE_RSA_KEY_1, FAKE_RSA_USER_1, FAKE_RSA_CA_1);
    }
}