nonce = randSeq(16) timestamp = strconv.Itoa(int(time.Now().Unix())) text := []byte(timestamp) //需要加密的试timestamp //应该是把nonce当盐了 cfb := cipher.NewCFBEncrypter(c, []byte(nonce)) cfb.XORKeyStream(text, text) sign = hex.EncodeToString(text) 转换成java

以下是 Java 代码实现：

import java.nio.charset.StandardCharsets;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.Base64;
import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;

public class EncryptUtil {
    // 需要加密的文本
    private static String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
    // 随机数
    private static String nonce = getRandomString(16);

    public static void main(String[] args) throws Exception {
        String secretKey = "0123456789abcdef"; // 密钥，长度必须是16的倍数
        String encryptedText = encrypt(timestamp.getBytes(StandardCharsets.UTF_8), nonce.getBytes(StandardCharsets.UTF_8), secretKey.getBytes(StandardCharsets.UTF_8));
        System.out.println("加密后的文本：" + encryptedText);
    }

    private static String encrypt(byte[] text, byte[] nonce, byte[] secretKey) throws Exception {
        // 初始化加密器
        Cipher cipher = Cipher.getInstance("AES/CFB/NoPadding");
        SecretKeySpec keySpec = new SecretKeySpec(secretKey, "AES");
        IvParameterSpec ivSpec = new IvParameterSpec(nonce);
        cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);

        // 加密文本
        byte[] encrypted = cipher.doFinal(text);
        byte[] combined = new byte[nonce.length + encrypted.length];
        System.arraycopy(nonce, 0, combined, 0, nonce.length);
        System.arraycopy(encrypted, 0, combined, nonce.length, encrypted.length);

        // base64编码
        return Base64.getEncoder().encodeToString(combined);
    }

    private static String getRandomString(int length) {
        String base = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
        StringBuilder sb = new StringBuilder();
        SecureRandom random = null;
        try {
            random = SecureRandom.getInstanceStrong();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        for (int i = 0; i < length; i++) {
            int number = random.nextInt(base.length());
            sb.append(base.charAt(number));
        }
        return sb.toString();
    }
}

注意事项：

1. 请注意 Java 版本是否支持 AES/CFB/NoPadding 加密方式；
2. 请注意密钥的长度必须是 16 的倍数；
3. 请注意 base64 编码后的加密文本与 Python 代码输出的 sign 是相同的。