


java - Please help me convert this DES encryption code into PHP. Is this the DES algorithm?
<code>import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import java.io.IOException; import java.security.SecureRandom; public class PHPDESEncrypt { String key; public PHPDESEncrypt() { } public PHPDESEncrypt(String key) { this.key = key; } public byte[] desEncrypt(byte[] plainText) throws Exception { SecureRandom sr = new SecureRandom(); DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey key = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.ENCRYPT_MODE, key, sr); byte data[] = plainText; byte encryptedData[] = cipher.doFinal(data); return encryptedData; } public byte[] desDecrypt(byte[] encryptText) throws Exception { SecureRandom sr = new SecureRandom(); DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey key = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.DECRYPT_MODE, key, sr); byte encryptedData[] = encryptText; byte decryptedData[] = cipher.doFinal(encryptedData); return decryptedData; } public String encrypt(String input) throws Exception { return base64Encode(desEncrypt(input.getBytes())).replaceAll("\\s*", ""); } public String decrypt(String input) throws Exception { byte[] result = base64Decode(input); return new String(desDecrypt(result)); } public String base64Encode(byte[] s) { if (s == null) return null; BASE64Encoder b = new sun.misc.BASE64Encoder(); return b.encode(s); } public byte[] base64Decode(String s) throws IOException { if (s == null) { return null; } BASE64Decoder decoder = new BASE64Decoder(); byte[] b = decoder.decodeBuffer(s); return b; } public static void main(String[] args) { try { PHPDESEncrypt d = new PHPDESEncrypt("12345678"); String p = d.encrypt("love"); System.out.println("密文:" + p); } catch (Exception e) { e.printStackTrace(); } } public String getKey() { return key; } public void setKey(String key) { this.key = key; } } </code>
回复内容:
<code>import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; import javax.crypto.Cipher; import javax.crypto.SecretKey; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESKeySpec; import java.io.IOException; import java.security.SecureRandom; public class PHPDESEncrypt { String key; public PHPDESEncrypt() { } public PHPDESEncrypt(String key) { this.key = key; } public byte[] desEncrypt(byte[] plainText) throws Exception { SecureRandom sr = new SecureRandom(); DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey key = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.ENCRYPT_MODE, key, sr); byte data[] = plainText; byte encryptedData[] = cipher.doFinal(data); return encryptedData; } public byte[] desDecrypt(byte[] encryptText) throws Exception { SecureRandom sr = new SecureRandom(); DESKeySpec dks = new DESKeySpec(key.getBytes()); SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey key = keyFactory.generateSecret(dks); Cipher cipher = Cipher.getInstance("DES"); cipher.init(Cipher.DECRYPT_MODE, key, sr); byte encryptedData[] = encryptText; byte decryptedData[] = cipher.doFinal(encryptedData); return decryptedData; } public String encrypt(String input) throws Exception { return base64Encode(desEncrypt(input.getBytes())).replaceAll("\\s*", ""); } public String decrypt(String input) throws Exception { byte[] result = base64Decode(input); return new String(desDecrypt(result)); } public String base64Encode(byte[] s) { if (s == null) return null; BASE64Encoder b = new sun.misc.BASE64Encoder(); return b.encode(s); } public byte[] base64Decode(String s) throws IOException { if (s == null) { return null; } BASE64Decoder decoder = new BASE64Decoder(); byte[] b = decoder.decodeBuffer(s); return b; } public static void main(String[] args) { try { PHPDESEncrypt d = new PHPDESEncrypt("12345678"); String p = d.encrypt("love"); System.out.println("密文:" + p); } catch (Exception e) { e.printStackTrace(); } } public String getKey() { return key; } public void setKey(String key) { this.key = key; } } </code>
des加密有好几种。。不知道你这种是哪个。。。这里有两种,你可以对照一下php Des加密
这个……看你贴的代码是java
吧!你要用php
的DES
解密需要至少得需要知道加密key
和对应的加密模式例如是CBC
,CFB
,ECB
等!确认好之后,用楼上的给你的dome应该没问题的

TooptimizePHPcodeforreducedmemoryusageandexecutiontime,followthesesteps:1)Usereferencesinsteadofcopyinglargedatastructurestoreducememoryconsumption.2)LeveragePHP'sbuilt-infunctionslikearray_mapforfasterexecution.3)Implementcachingmechanisms,suchasAPC

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

The best way to send emails is to use the PHPMailer library. 1) Using the mail() function is simple but unreliable, which may cause emails to enter spam or cannot be delivered. 2) PHPMailer provides better control and reliability, and supports HTML mail, attachments and SMTP authentication. 3) Make sure SMTP settings are configured correctly and encryption (such as STARTTLS or SSL/TLS) is used to enhance security. 4) For large amounts of emails, consider using a mail queue system to optimize performance.

CustomheadersandadvancedfeaturesinPHPemailenhancefunctionalityandreliability.1)Customheadersaddmetadatafortrackingandcategorization.2)HTMLemailsallowformattingandinteractivity.3)AttachmentscanbesentusinglibrarieslikePHPMailer.4)SMTPauthenticationimpr

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

ThebestapproachforsendingemailsinPHPisusingthePHPMailerlibraryduetoitsreliability,featurerichness,andeaseofuse.PHPMailersupportsSMTP,providesdetailederrorhandling,allowssendingHTMLandplaintextemails,supportsattachments,andenhancessecurity.Foroptimalu

The reason for using Dependency Injection (DI) is that it promotes loose coupling, testability, and maintainability of the code. 1) Use constructor to inject dependencies, 2) Avoid using service locators, 3) Use dependency injection containers to manage dependencies, 4) Improve testability through injecting dependencies, 5) Avoid over-injection dependencies, 6) Consider the impact of DI on performance.

PHPperformancetuningiscrucialbecauseitenhancesspeedandefficiency,whicharevitalforwebapplications.1)CachingwithAPCureducesdatabaseloadandimprovesresponsetimes.2)Optimizingdatabasequeriesbyselectingnecessarycolumnsandusingindexingspeedsupdataretrieval.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool

Zend Studio 13.0.1
Powerful PHP integrated development environment

SublimeText3 Linux new version
SublimeText3 Linux latest version
