iOS DES加密

浏览数：23 / 时间：2015年06月11日

+(NSString *) encryptUseDES:(NSString *)plainText key:(NSString *)key
{
   //testByte是关键点
    NSData *data1 = [key dataUsingEncoding:NSUTF8StringEncoding];
    Byte *testByte = (Byte *)[data1 bytes];


    NSString *ciphertext = nil;
    NSData *textData = [plainText dataUsingEncoding:NSUTF8StringEncoding];
    NSUInteger dataLength = [textData length];
    unsigned char buffer[1024];
    memset(buffer, 0, sizeof(char));
    size_t numBytesEncrypted = 0;
    CCCryptorStatus cryptStatus = CCCrypt(kCCEncrypt, kCCAlgorithmDES,
                                          kCCOptionPKCS7Padding,
                                          [key UTF8String], kCCKeySizeDES,
                                          testByte,
                                          [textData bytes], dataLength,
                                          buffer, 1024,
                                          &numBytesEncrypted);
    if (cryptStatus == kCCSuccess) {
        NSData *data = [NSData dataWithBytes:buffer length:(NSUInteger)numBytesEncrypted];
        ciphertext = [Base64 encode:data];
        NSLog(@"-------------%@",ciphertext);
    }
    return ciphertext;
}

首先建一个NSObject DesCodeFunc类，写上面的工厂方法然后在需要调用的地方写下面的字符串即可注意后面key需要客户给
[DesCodeFunc encryptUseDES:tfield2cart.text key:@"Markor02"]