3des加密解密
来源：互联网 发布：淘宝上药店是真的吗 编辑：程序博客网 时间：2024/06/16 01:26
php服务器，java服务器，android，ios开发兼容的3des加密解密，
php
<?phpclass DES3 { #密钥可写成构造方法传入 var $key = "my.oschina.net/penngo?#@"; var $iv = "01234567"; function encrypt($input){ $size = mcrypt_get_block_size(MCRYPT_3DES,MCRYPT_MODE_CBC); $input = $this->pkcs5_pad($input, $size); $key = str_pad($this->key,24,'0'); $td = mcrypt_module_open(MCRYPT_3DES, '', MCRYPT_MODE_CBC, ''); if( $this->iv == '' ){ $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); } else { $iv = $this->iv; } @mcrypt_generic_init($td, $key, $iv); $data = mcrypt_generic($td, $input); mcrypt_generic_deinit($td); mcrypt_module_close($td); $data = base64_encode($data); return $data; } function decrypt($encrypted){ $encrypted = base64_decode($encrypted); $key = str_pad($this->key,24,'0'); $td = mcrypt_module_open(MCRYPT_3DES,'',MCRYPT_MODE_CBC,''); if( $this->iv == '' ) { $iv = @mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); } else { $iv = $this->iv; } $ks = mcrypt_enc_get_key_size($td); @mcrypt_generic_init($td, $key, $iv); $decrypted = mdecrypt_generic($td, $encrypted); mcrypt_generic_deinit($td); mcrypt_module_close($td); $y=$this->pkcs5_unpad($decrypted); return $y; } function pkcs5_pad ($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } function pkcs5_unpad($text){ $pad = ord($text{strlen($text)-1}); if ($pad > strlen($text)) { return false; } if (strspn($text, chr($pad), strlen($text) - $pad) != $pad){ return false; } return substr($text, 0, -1 * $pad); } function PaddingPKCS7($data) { $block_size = mcrypt_get_block_size(MCRYPT_3DES, MCRYPT_MODE_CBC); $padding_char = $block_size - (strlen($data) % $block_size); $data .= str_repeat(chr($padding_char),$padding_char); return $data; }}$des = new DES3();echo $ret = $des->encrypt("来自http://my.oschina.net/penngo的博客") . "\n";echo $des->decrypt($ret) . "\n";java(android)
import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.OutputStream;import java.io.UnsupportedEncodingException;import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec; /** * 3DES加密工具类 */ public class DES3 { // 密钥 private final static String secretKey = "my.oschina.net/penngo?#@" ; // 向量 private final static String iv = "01234567" ; // 加解密统一使用的编码方式 private final static String encoding = "utf-8" ; /** * 3DES加密 * * @param plainText 普通文本 * @return * @throws Exception */ public static String encode(String plainText) throws Exception { Key deskey = null ; DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes()); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance( "desede" ); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance( "desede/CBC/PKCS5Padding" ); IvParameterSpec ips = new IvParameterSpec(iv.getBytes()); cipher.init(Cipher.ENCRYPT_MODE, deskey, ips); byte [] encryptData = cipher.doFinal(plainText.getBytes(encoding)); return Base64.encode(encryptData); } /** * 3DES解密 * * @param encryptText 加密文本 * @return * @throws Exception */ public static String decode(String encryptText) throws Exception { Key deskey = null ; DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes()); SecretKeyFactory keyfactory = SecretKeyFactory.getInstance( "desede" ); deskey = keyfactory.generateSecret(spec); Cipher cipher = Cipher.getInstance( "desede/CBC/PKCS5Padding" ); IvParameterSpec ips = new IvParameterSpec(iv.getBytes()); cipher.init(Cipher.DECRYPT_MODE, deskey, ips); byte [] decryptData = cipher.doFinal(Base64.decode(encryptText)); return new String(decryptData, encoding); } public static String padding(String str) { byte[] oldByteArray; try { oldByteArray = str.getBytes("UTF8"); int numberToPad = 8 - oldByteArray.length % 8; byte[] newByteArray = new byte[oldByteArray.length + numberToPad]; System.arraycopy(oldByteArray, 0, newByteArray, 0, oldByteArray.length); for (int i = oldByteArray.length; i < newByteArray.length; ++i) { newByteArray[i] = 0; } return new String(newByteArray, "UTF8"); } catch (UnsupportedEncodingException e) { System.out.println("Crypter.padding UnsupportedEncodingException"); } return null; } /** * Base64编码工具类 * */ public static class Base64 { private static final char [] legalChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" .toCharArray(); public static String encode( byte [] data) { int start = 0 ; int len = data.length; StringBuffer buf = new StringBuffer(data.length * 3 / 2 ); int end = len - 3 ; int i = start; int n = 0 ; while (i <= end) { int d = (((( int ) data[i]) & 0x0ff ) << 16 ) | (((( int ) data[i + 1 ]) & 0x0ff ) << 8 ) | ((( int ) data[i + 2 ]) & 0x0ff ); buf.append(legalChars[(d >> 18 ) & 63 ]); buf.append(legalChars[(d >> 12 ) & 63 ]); buf.append(legalChars[(d >> 6 ) & 63 ]); buf.append(legalChars[d & 63 ]); i += 3 ; if (n++ >= 14 ) { n = 0 ; buf.append( " " ); } } if (i == start + len - 2 ) { int d = (((( int ) data[i]) & 0x0ff ) << 16 ) | (((( int ) data[i + 1 ]) & 255 ) << 8 ); buf.append(legalChars[(d >> 18 ) & 63 ]); buf.append(legalChars[(d >> 12 ) & 63 ]); buf.append(legalChars[(d >> 6 ) & 63 ]); buf.append( "=" ); } else if (i == start + len - 1 ) { int d = ((( int ) data[i]) & 0x0ff ) << 16 ; buf.append(legalChars[(d >> 18 ) & 63 ]); buf.append(legalChars[(d >> 12 ) & 63 ]); buf.append( "==" ); } return buf.toString(); } private static int decode( char c) { if (c >= 'A' && c <= 'Z' ) return (( int ) c) - 65 ; else if (c >= 'a' && c <= 'z' ) return (( int ) c) - 97 + 26 ; else if (c >= '0' && c <= '9' ) return (( int ) c) - 48 + 26 + 26 ; else switch (c) { case '+' : return 62 ; case '/' : return 63 ; case '=' : return 0 ; default : throw new RuntimeException( "unexpected code: " + c); } } /** * Decodes the given Base64 encoded String to a new byte array. The byte array holding the decoded data is returned. */ public static byte [] decode(String s) { ByteArrayOutputStream bos = new ByteArrayOutputStream(); try { decode(s, bos); } catch (IOException e) { throw new RuntimeException(); } byte [] decodedBytes = bos.toByteArray(); try { bos.close(); bos = null ; } catch (IOException ex) { System.err.println( "Error while decoding BASE64: " + ex.toString()); } return decodedBytes; } private static void decode(String s, OutputStream os) throws IOException { int i = 0 ; int len = s.length(); while ( true ) { while (i < len && s.charAt(i) <= ' ' ) i++; if (i == len) break ; int tri = (decode(s.charAt(i)) << 18 ) + (decode(s.charAt(i + 1 )) << 12 ) + (decode(s.charAt(i + 2 )) << 6 ) + (decode(s.charAt(i + 3 ))); os.write((tri >> 16 ) & 255 ); if (s.charAt(i + 2 ) == '=' ) break ; os.write((tri >> 8 ) & 255 ); if (s.charAt(i + 3 ) == '=' ) break ; os.write(tri & 255 ); i += 4 ; } } } public static void main(String[] args) throws Exception{ String plainText = "来自http://my.oschina.net/penngo的博客"; String encryptText = DES3.encode(plainText); System.out.println(encryptText); System.out.println(DES3.decode(encryptText)); }}Ojbective-C(ios)
// // DES3Util.h // #import <Foundation/Foundation.h> @interface DES3Util : NSObject { } // 加密方法 + (NSString*)encrypt:(NSString*)plainText; // 解密方法 + (NSString*)decrypt:(NSString*)encryptText; @end // // DES3Util.m // #import "DES3Util.h" #import <CommonCrypto/CommonCryptor.h> #import "GTMBase64.h" #define gkey @"my.oschina.net/penngo?#@" #define gIv @"01234567" @implementation DES3Util // 加密方法 + (NSString*)encrypt:(NSString*)plainText { NSData* data = [plainText dataUsingEncoding:NSUTF8StringEncoding]; size_t plainTextBufferSize = [data length]; const void *vplainText = (const void *)[data bytes]; CCCryptorStatus ccStatus; uint8_t *bufferPtr = NULL; size_t bufferPtrSize = 0; size_t movedBytes = 0; bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t)); memset((void *)bufferPtr, 0x0, bufferPtrSize); const void *vkey = (const void *) [gkey UTF8String]; const void *vinitVec = (const void *) [gIv UTF8String]; ccStatus = CCCrypt(kCCEncrypt, kCCAlgorithm3DES, kCCOptionPKCS7Padding, vkey, kCCKeySize3DES, vinitVec, vplainText, plainTextBufferSize, (void *)bufferPtr, bufferPtrSize, &movedBytes); NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes]; NSString *result = [GTMBase64 stringByEncodingData:myData]; return result; } // 解密方法 + (NSString*)decrypt:(NSString*)encryptText { NSData *encryptData = [GTMBase64 decodeData:[encryptText dataUsingEncoding:NSUTF8StringEncoding]]; size_t plainTextBufferSize = [encryptData length]; const void *vplainText = [encryptData bytes]; CCCryptorStatus ccStatus; uint8_t *bufferPtr = NULL; size_t bufferPtrSize = 0; size_t movedBytes = 0; bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1); bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t)); memset((void *)bufferPtr, 0x0, bufferPtrSize); const void *vkey = (const void *) [gkey UTF8String]; const void *vinitVec = (const void *) [gIv UTF8String]; ccStatus = CCCrypt(kCCDecrypt, kCCAlgorithm3DES, kCCOptionPKCS7Padding, vkey, kCCKeySize3DES, vinitVec, vplainText, plainTextBufferSize, (void *)bufferPtr, bufferPtrSize, &movedBytes); NSString *result = [[[NSString alloc] initWithData:[NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes] encoding:NSUTF8StringEncoding] autorelease]; return result; } @end转自：http://www.open-open.com/code/view/1437384095506
阅读全文
0 0
- DES/3DES加密，解密
- 3DES 加密解密
- 3des加密解密
- 3-DES加密解密
- 3DES加密解密
- 3des加密解密
- 3des加密解密
- 3DES 加密解密
- 3DES加密解密
- 3DES 加密解密
- 3DES 加密、解密
- 3DES 加密解密
- 3DES加密解密
- 3des加密解密
- des/3des加密解密验证网站
- stm8 des/3des加密解密
- sunjce iOS des 3des解密加密
- 3DES加密与解密
- 【玖哥乱弹】程序员的健康
- 使用BigDecimal进行精确运算
- (199)材质编辑器
- 集合
- 干货分享：详解线程的开始和创建
- 3des加密解密
- C#多线程之旅(1)
- web storage 存图片
- 自定义MVC升级版
- JSON
- 详解SQL集合运算
- 玲珑学院OJ 1126
- Python 读取csv的某行
- 【博客美化】04.自定义地址栏logo
