Java加密技术(九) - 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
yptByPublicKey(byte[] data, String certificatePath) throws Exception { // 函誼巷埒 PublicKey publicKey = getPublicKey(certificatePath); // 斤方象紗畜 Cipher cipher = Cipher.getInstance(publicKey.getAlgorithm()); cipher.init(Cipher.DECRYPT_MODE, publicKey); return cipher.doFinal(data); } /** * 刮屬Certificate * * @param certificatePath * @return */ public static boolean verifyCertificate(String certificatePath) { return verifyCertificate(new Date(), certificatePath); } /** * 刮屬Certificate頁倦狛豚賜涙丼 * * @param date * @param certificatePath * @return */ public static boolean verifyCertificate(Date date, String certificatePath) { boolean status = true; try { // 函誼屬慕 Certificate certificate = getCertificate(certificatePath); // 刮屬屬慕頁倦狛豚賜涙丼 status = verifyCertificate(date, certificate); } catch (Exception e) { status = false; } return status; } /** * 刮屬屬慕頁倦狛豚賜涙丼 * * @param date * @param certificate * @return */ private static boolean verifyCertificate(Date date, Certificate certificate) { boolean status = true; try { X509Certificate x509Certificate = (X509Certificate) certificate; x509Certificate.checkValidity(date); } catch (Exception e) { status = false; } return status; } /** * 禰兆 * * @param keyStorePath * @param alias * @param password * * @return * @throws Exception */ public static String sign(byte[] sign, String keyStorePath, String alias, String password) throws Exception { // 資誼屬慕 X509Certificate x509Certificate = (X509Certificate) getCertificate( keyStorePath, alias, password); // 資函暴埒 KeyStore ks = getKeyStore(keyStorePath, password); // 函誼暴埒 PrivateKey privateKey = (PrivateKey) ks.getKey(alias, password .toCharArray()); // 更秀禰兆 Signature signat |
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