问无法在进程中执行支持代码读取Objective类数据。在真实的iPhone设备上

EN

+ (NSData *)aesDecrypt:(NSURL *)url :(NSString *)key {

NSData *data = [NSData dataWithContentsOfURL: url];
if (data == nil) {
    NSLog(@"file not found");
    return nil;
}

char keyPtr[kCCKeySizeAES128];
bzero(keyPtr, sizeof(keyPtr));

[key getCString:keyPtr maxLength:sizeof(keyPtr)];

size_t bufferSize = [data length] + kCCBlockSizeAES128;
size_t decryptedBytesSize = 0;

void *buffer = malloc(bufferSize);

CCCryptorStatus result = CCCrypt(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding, keyPtr, kCCKeySizeAES128, keyPtr, [data bytes],
        [data length], buffer, bufferSize, &decryptedBytesSize);

NSData *decrypted = [NSData dataWithBytes:buffer length:bufferSize];

NSError *error;

if (kCCSuccess != result) {
    NSLog(@"aes decrypt error");
    return nil;
}

return decrypted;
}