Performance comparison of SM4, AES, and DES encryption and decryption algorithms

test code

  public void encryDecry() throws  Exception{
    
    
        SM4StringEncryptor sm4 = new SM4StringEncryptor();
        String path = "D:\\Users\\xlj\\Downloads\\sylog.txt";

        File file = new File(path);
        InputStreamReader reader = new InputStreamReader(new FileInputStream(path));

        BufferedReader br = new BufferedReader(reader);
        StringBuilder fileContent = new StringBuilder();

        String line = "";
        line = br.readLine();
        while (line != null) {
    
    
            line = br.readLine();
            fileContent.append(line);
        }
        System.out.println("文件原始大小:" + fileContent.length() /1024/1024 + "Mb");

        StringBuilder fileContent = new StringBuilder("xlj12442");
        long startTime = System.currentTimeMillis();

        String encryContent=  sm4.encrypt(fileContent.toString());
        System.out.println("sm4加密后:" + encryContent);
        System.out.println("sm4加密后文件大小:" + encryContent.length() /1024/1024 + "Mb");

        long endTime = System.currentTimeMillis();
        System.out.println("sm4加密耗时:" + (endTime - startTime) + "ms");

        String decryContent = sm4.decrypt(encryContent);
        System.out.println("sm4解密后:" + decryContent);
        System.out.println("sm4解密后文件大小:" + decryContent.length()  /1024/1024 + "Mb");
        long endTime1 = System.currentTimeMillis();
        System.out.println("sm4解密耗时:" + (endTime1 - endTime) + "ms");

        // aes
        byte[] key = SecureUtil.generateKey(SymmetricAlgorithm.AES.getValue()).getEncoded();
        SymmetricCrypto aes = new SymmetricCrypto(SymmetricAlgorithm.AES, key);

        long aesStartTime = System.currentTimeMillis();
        encryContent = aes.encryptHex(decryContent);
        long esaEndTimeEncry = System.currentTimeMillis();

        System.out.println("aes加密后:" + encryContent);
        System.out.println("aes加密后文件大小:" + encryContent.length() /1024/1024 + "Mb");
        System.out.println("aes加密耗时:" + (esaEndTimeEncry - aesStartTime) + "ms");


        long aesEncryStartTime = System.currentTimeMillis();
        decryContent = aes.decryptStr(encryContent, CharsetUtil.CHARSET_UTF_8);
        long aesEncryEndTime = System.currentTimeMillis();
        System.out.println("aes解密后:" + decryContent);
        System.out.println("aes解密后文件大小:" + decryContent.length()  /1024/1024 + "Mb");
        System.out.println("aes解密耗时:" + (aesEncryEndTime - aesEncryStartTime) + "ms");


        // des
        key = SecureUtil.generateKey(SymmetricAlgorithm.DESede.getValue()).getEncoded();
        SymmetricCrypto des = new SymmetricCrypto(SymmetricAlgorithm.DESede, key);


        long desStartTime = System.currentTimeMillis();
        encryContent = des.encryptHex(decryContent);
        long desEndTimeEncry = System.currentTimeMillis();

        System.out.println("des ede加密后:" + encryContent);
        System.out.println("des ede加密后文件大小:" + encryContent.length() /1024/1024 + "Mb");
        System.out.println("des ede加密耗时:" + (desEndTimeEncry - desStartTime) + "ms");


        long desEncryStartTime = System.currentTimeMillis();
        decryContent = des.decryptStr(encryContent, CharsetUtil.CHARSET_UTF_8);
        long desEncryEndTime = System.currentTimeMillis();
        System.out.println("des ede解密后:" + decryContent);
        System.out.println("des ede解密后文件大小:" + decryContent.length()  /1024/1024 + "Mb");
        System.out.println("des ede解密耗时:" + (desEncryEndTime - desEncryStartTime) + "ms");*/

    }

Performance comparison results

Encryption Algorithm	File size	Encryption time (ms)	Decryption time (ms)
SM4	5M	1596	841
AES	5M	201	447
OF THE	5M	317	669
SM4	620KB	689	172
AES	620KB	109	186
OF THE	620KB	53	132
SM4	36KB	487	34
AES	36KB	20	57
OF THE	36KB	9	14
SM4	6Bytes	505	0
AES	6Bytes	13	24
OF THE	6Bytes	1	0