超级课程表登录加密算法

来源：互联网发布：linux命令行新建文件编辑：程序博客网时间：2024/04/27 23:27
 //加密    public static String encrypt(String paramString) {        String paramString2 = getEncryptKey();        try {            paramString = URLEncoder.encode(paramString, "utf-8");            SecretKeySpec secretKeySpec = new SecretKeySpec(DigestUtils.md5(paramString2), "AES");            Cipher localCipher = Cipher.getInstance("AES");            localCipher.init(1, secretKeySpec);            paramString = byte2HexStr(localCipher.doFinal(paramString.getBytes("utf-8")));        } catch (Exception e) {            e.printStackTrace();        }        return paramString;    }    //获取加密Key    private static String getEncryptKey() {        String paramString = "friday_syllabus";        int j = 0;        String encrypt = new String();        char[] array1 = "0123456789abcdef".toCharArray();        try {            MessageDigest md = MessageDigest.getInstance("MD5");            md.update(paramString.getBytes());            byte[] md5bytes = md.digest();//md5值            char[] keychars = new char[32];            for (int i = 0; i < 16; i++) {                int k = md5bytes[i];                int m = j + 1;                keychars[j] = array1[(k >>> 4 & 0xF)];                j = m + 1;                keychars[m] = array1[(k & 0xF)];            }            encrypt = new String(keychars).toUpperCase();        } catch (Exception e) {            e.printStackTrace();        }        return encrypt;    }    //字节码转16进制字符串    private static String byte2HexStr(byte[] b) {        String temp = "";        StringBuilder sb = new StringBuilder("");        for (int n = 0; n < b.length; n++) {            temp = Integer.toHexString(b[n] & 0xFF);            sb.append((temp.length() == 1) ? "0" + temp : temp);        }        return sb.toString().toUpperCase().trim();    }
0 0