php+ios加密和解密3des+base64

我需要用php加密和解密由这里解释的ios方法生成的字符串代码https://stackoverflow.com/a/9479657/721253

为了用php加密，我使用脚本

$key = 'f968f8e82961489a8b14b345';
$data = 'odio quando sto studiando e un velociraptor mi lancia addosso banane';
$encrypted = null;
$m = mcrypt_module_open(MCRYPT_3DES, null, MCRYPT_MODE_ECB, null);
$fake_iv = str_repeat(chr(0), mcrypt_enc_get_iv_size($m));
mcrypt_generic_init($m, $key, $fake_iv);
$encrypted = mcrypt_generic($m, $data);
die(base64_encode($encrypted));

在IO上，我使用

NSURL *url = [NSURL URLWithString:@"http://oscurodrago.it/tools/crypto.php"];
NSData *data = [NSData dataWithContentsOfURL:url];
NSData *outData = [self TripleDES:data encryptOrDecrypt:kCCDecrypt key:@"f968f8e82961489a8b14b345"];

ccStatus返回解码错误->if（ccStatus==kCCDecodeError）NSLog（@"decode error"）；

更新那是viewcontroller.m，我正在那里测试脚本

#import <CommonCrypto/CommonCryptor.h>
#import "GTMBase64.h"
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (NSData*)TripleDES:(NSData*)plainData encryptOrDecrypt:(CCOperation)encryptOrDecrypt key:(NSString*)key {
    const void *vplainText;
    size_t plainTextBufferSize;
    if (encryptOrDecrypt == kCCDecrypt)
    {
        NSData *EncryptData = [GTMBase64 decodeData:plainData];
        plainTextBufferSize = [EncryptData length];
        vplainText = [EncryptData bytes];
    }
    else
    {
        plainTextBufferSize = [plainData length];
        vplainText = (const void *)[plainData bytes];
    }
    CCCryptorStatus ccStatus;
    uint8_t *bufferPtr = NULL;
    size_t bufferPtrSize = 0;
    size_t movedBytes = 0;
    // uint8_t ivkCCBlockSize3DES;
    bufferPtrSize = (plainTextBufferSize + kCCBlockSize3DES) & ~(kCCBlockSize3DES - 1);
    bufferPtr = malloc( bufferPtrSize * sizeof(uint8_t));
    memset((void *)bufferPtr, 0x0, bufferPtrSize);
    // memset((void *) iv, 0x0, (size_t) sizeof(iv));
    //    NSString *key = @"123456789012345678901234";
    NSString *initVec = @"init Vec";
    const void *vkey = (const void *) [key UTF8String];
    const void *vinitVec = (const void *) [initVec UTF8String];
    ccStatus = CCCrypt(encryptOrDecrypt,
                       kCCAlgorithm3DES,
                       kCCOptionPKCS7Padding,
                       vkey, //"123456789012345678901234", //key
                       kCCKeySize3DES,
                       vinitVec, //"init Vec", //iv,
                       vplainText, //"Your Name", //plainText,
                       plainTextBufferSize,
                       (void *)bufferPtr,
                       bufferPtrSize,
                       &movedBytes);
    if (ccStatus == kCCSuccess) NSLog(@"SUCCESS");
    else if (ccStatus == kCCParamError) NSLog( @"PARAM ERROR");
     else if (ccStatus == kCCBufferTooSmall) NSLog( @"BUFFER TOO SMALL");
     else if (ccStatus == kCCMemoryFailure) NSLog( @"MEMORY FAILURE");
     else if (ccStatus == kCCAlignmentError) NSLog( @"ALIGNMENT");
     else if (ccStatus == kCCDecodeError) NSLog( @"DECODE ERROR");
     else if (ccStatus == kCCUnimplemented) NSLog( @"UNIMPLEMENTED");
    NSData *result;
    if (encryptOrDecrypt == kCCDecrypt)
    {
        result = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes];
    }
    else
    {
        NSData *myData = [NSData dataWithBytes:(const void *)bufferPtr length:(NSUInteger)movedBytes];
        result = [GTMBase64 encodeData:myData];
    }
    return result;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    NSURL *url = [NSURL URLWithString:@"http://www.oscurodrago.it/tools/crypto.php"];
    NSData *data = [NSData dataWithContentsOfURL:url];
    NSData *outData = [[NSData alloc] initWithData:[self TripleDES:data encryptOrDecrypt:kCCDecrypt key:@"f968f8e82961489a8b14b345"]];
    NSLog(@"%@", data );
    // NSData *encriptdata = [self TripleDES:data encryptOrDecrypt:kCCEncrypt key:@"f968f8e82961489a8b14b345"];
    NSLog(@"%@", [outData length] );
}
- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
    } else {
        return YES;
    }
}
@end