使用java访问MS CryptoAPI

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;

public class CryptoExample {
    public static void main(String[] args) throws Exception {
        // 创建密钥和证书
        SecretKeySpec keySpec = new SecretKeySpec("mykey".getBytes(), "HmacSHA256");
        X509Certificate cert = generateCertificate("mykey");

        // 加密数据
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
        cipher.init(Cipher.ENCRYPT_MODE, keySpec, cert);
        byte[] encrypted = cipher.doFinal("Hello, World!".getBytes());

        // 解密数据
        cipher.init(Cipher.DECRYPT_MODE, keySpec, cert);
        byte[] decrypted = cipher.doFinal(encrypted);
        String original = new String(decrypted);
        System.out.println(original);
    }

    private static X509Certificate generateCertificate(String key) throws Exception {
        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        keyStore.load(null, null);
        keyStore.setCertificateEntry("mykey", generateCertificate(key));
        return keyStore.getCertificate("mykey");
    }

    private static X509Certificate generateCertificate(String key) throws Exception {
        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        keyStore.load(null, null);
        keyStore.setCertificateEntry("mykey", generateCertificate(key));
        return keyStore.getCertificate("mykey");
    }
}