E5qxxFL8

1NSString* plaintexthex = @"536176696E67204163636F756E747C313233343536000000";
2NSData *dTextIn = [self dataFromHexString:plaintexthex]; //my own way of convert hex to data
3
4NSString* keyhex = @"6E7B336FD2051BA165A9362BD9735531";
5NSData *_keyData = [self dataFromHexString:keyhex]; //my own way of convert hex to data
6
7CCCryptorStatus ccStatus;
8uint8_t *bufferPtr = NULL;
9size_t bufferPtrSize = 0;
10size_t movedBytes = 0;
11
12bufferPtrSize = ([dTextIn length] + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1);
13bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t));
14memset((void *)bufferPtr, 0x00, bufferPtrSize);
15
16uint8_t iv[kCCBlockSize3DES];
17memset((void *) iv, 0x00, (size_t) sizeof(iv));
18
19unsigned char *bytePtr = (unsigned char *)[_keyData bytes];
20
21ccStatus = CCCrypt(kCCEncrypt,              // CCoperation op
22                   kCCAlgorithm3DES,        // CCAlgorithm alg
23                   kCCModeCBC,              // CCOptions
24                   [_keyData bytes],        // const void *key
25                   kCCKeySize3DES,          // 3DES key size length 24 bit
26                   iv,                      // const void *iv,
27                   [dTextIn bytes],         // const void *dataIn 
28                   [dTextIn length],        // size_t dataInLength
29                   bufferPtr,               // void *dataOut
30                   bufferPtrSize,           // size_t dataOutAvailable
31                   &movedBytes);            // size_t *dataOutMoved
32
33NSString *result;
34NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:            (NSUInteger)movedBytes];
35result = [self hexStringFromData:myData];
36
37NSLog(@"Data to encrypt %@",dTextIn);
38NSLog(@"Encryption key %@",_keyData);
39NSLog(@"Bytes of key are %s ", bytePtr);
40NSLog(@"Key length %d ",[_keyData length]);
41NSLog(@"Encrypted bytes %@", myData);
42NSLog(@"Encrypted string %@", result);
43NSLog(@"Encrypted string length %d", [result length]);
44
45- (NSData *)dataFromHexString:(NSString *)string 
46{   
47    NSMutableData *stringData = [[[NSMutableData alloc] init] autorelease];
48    unsigned char whole_byte;
49    char byte_chars[3] = {'','',''};
50    int i;
51    for (i=0; i < [string length] / 2; i++) {
52        byte_chars[0] = [string characterAtIndex:i*2];
53        byte_chars[1] = [string characterAtIndex:i*2+1];
54        whole_byte = strtol(byte_chars, NULL, 16);
55        [stringData appendBytes:&whole_byte length:1]; 
56    }
57    return stringData;
58}
59	
60public byte[] encrypt(byte[] key, byte[] message) throws Exception {
61
62       byte [] plainTextBytes = message;
63       byte[] encryptKey = key;
64
65       SecretKey theKey = new SecretKeySpec(encryptKey, "DESede");
66       Cipher cipher = Cipher.getInstance("DESede/CBC/NoPadding");
67       IvParameterSpec IvParameters = new IvParameterSpec(new byte[] {(byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x00});
68       cipher.init(Cipher.ENCRYPT_MODE, theKey, IvParameters);
69       byte[] encrypted = cipher.doFinal(plainTextBytes);
70       return encrypted;
71  }