SM4、AES、DES加解密算法性能比较
测试代码
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");*/
}
性能比较结果
加密算法 文件大小 加密耗时(ms) 解密耗时(ms)
SM4 5M 1596 841
AES 5M 201 447
DES 5M 317 669
SM4 620KB 689 172
AES 620KB 109 186
DES 620KB 53 132
SM4 36KB 487 34
AES 36KB 20 57
DES 36KB 9 14
SM4 6Bytes 505 0
AES 6Bytes 13 24
DES 6Bytes 1 0
文章知识点与官方知识档案匹配，可进一步学习相关知识
————————————————
版权声明：本文为CSDN博主「我爱看明朝」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/u013565163/article/details/128047911