一行代码实现ios 3des加密解密-百家乐凯发k8

#import  
#import 
#import 
#import "gtmbase64.h" 
//密匙 key
#define gkey      @"kyle_chu"
//偏移量
#define giv       @"jukai" 
//字符串加密
-(nsstring *)doencryptstr:(nsstring *)originalstr{
  //把string 转nsdata
  nsdata* data = [originalstr datausingencoding:nsutf8stringencoding];
  //length
  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];
  //偏移量
  const void *vinitvec = (const void *) [giv utf8string];
  //配置cccrypt
  ccstatus = cccrypt(kccencrypt,
            kccalgorithm3des, //3des
            kccoptionecbmode|kccoptionpkcs7padding, //设置模式
            vkey,  //key
            kcckeysize3des,
            vinitvec,   //偏移量，这里不用，设置为nil;不用的话，必须为nil,不可以为@“”
            vplaintext,
            plaintextbuffersize,
            (void *)bufferptr,
            bufferptrsize,
            &movedbytes);
  nsdata *mydata = [nsdata datawithbytes:(const void *)bufferptr length:(nsuinteger)movedbytes];
  nsstring *result = [gtmbase64 stringbyencodingdata:mydata];
  return result;
} 
//字符串解密
-(nsstring*)dodecencryptstr:(nsstring *)encryptstr{
  nsdata *encryptdata = [gtmbase64 decodedata:[encryptstr 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|kccoptionecbmode,
            vkey,
            kcckeysize3des,
            vinitvec,
            vplaintext,
            plaintextbuffersize,
            (void *)bufferptr,
            bufferptrsize,
            &movedbytes);
  nsstring *result = [[nsstring alloc] initwithdata:[nsdata datawithbytes:(const void *)bufferptr
                                   length:(nsuinteger)movedbytes] encoding:nsutf8stringencoding];
  return result;
} 

//1、设置您需要的密匙、偏移量
//密匙 key
#define gkey      @"kyle_chu"
//偏移量
#define giv       @"jukai" 
// @"kyle_jukai" 是测试字符串，换成您需要加密的内容即可
jkencrypt * en = [[jkencrypt alloc]init];
//加密
nsstring * encryptstr = [en doencryptstr: @"kyle_jukai"];
nsstring * encrypthex = [en doencrypthex: @"kyle_jukai"];
nslog(@"字符串加密:%@",encryptstr);
nslog(@"十六进制加密:%@",encrypthex);
//解密
nsstring *decencryptstr = [en dodecencryptstr:encryptstr];
nsstring *decencrypthex = [en doencrypthex:encrypthex];
nslog(@"字符串解密:%@",decencryptstr);
nslog(@"字符串解密:%@",decencrypthex);