Java加密技术（八） - 编程入门网
作者 佚名技术
来源 NET编程
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发布时间 2012-06-23
| ord.toCharArray()); return key; } /** * 喇Certificate資誼巷埒 * * @param certificatePath * @return * @throws Exception */ private static PublicKey getPublicKey(String certificatePath) throws Exception { Certificate certificate = getCertificate(certificatePath); PublicKey key = certificate.getPublicKey(); return key; } /** * 資誼Certificate * * @param certificatePath * @return * @throws Exception */ private static Certificate getCertificate(String certificatePath) throws Exception { CertificateFactory certificateFactory = CertificateFactory .getInstance(X509); FileInputStream in = new FileInputStream(certificatePath); Certificate certificate = certificateFactory.generateCertificate(in); in.close(); return certificate; } /** * 資誼Certificate * * @param keyStorePath * @param alias * @param password * @return * @throws Exception */ private static Certificate getCertificate(String keyStorePath, String alias, String password) throws Exception { KeyStore ks = getKeyStore(keyStorePath, password); Certificate certificate = ks.getCertificate(alias); return certificate; } /** * 資誼KeyStore * * @param keyStorePath * @param password * @return * @throws Exception */ private static KeyStore getKeyStore(String keyStorePath, String password) throws Exception { FileInputStream is = new FileInputStream(keyStorePath); KeyStore ks = KeyStore.getInstance(KEY_STORE); ks.load(is, password.toCharArray()); is.close(); return ks; } /** * 暴埒紗畜 * * @param data * @param keyStorePath * @param alias * @param password * @return * @throws Exception */ public static byte[] encryptByPrivateKey(byte[] data, String keyStorePath, String alias, String password) throws Exception { // 函誼暴埒 PrivateKey privateKey = getPrivateKey(keyStorePath, alias, password); // 斤方象紗畜 Cipher cipher = Cipher.getInstance(privateKe |
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