2
我嘗試使用CCCrypt方法上的Xcode 5的工作,但它已經從XCode4和XCode5CCCrypt不是IOS 7
- (NSData *)AES256DecryptWithKey:(NSString *)key
{
// 'key' should be 32 bytes for AES256, will be null-padded otherwise
char keyPtr[kCCKeySizeAES256+1]; // room for terminator (unused)
bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)
// fetch key data
[key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];
NSUInteger dataLength = [self length];
//See the doc: For block ciphers, the output size will always be less than or
//equal to the input size plus the size of one block.
//That's why we need to add the size of one block here
size_t bufferSize = dataLength + kCCBlockSizeAES128;
void *buffer = malloc(bufferSize);
size_t numBytesDecrypted = 0;
CCCryptorStatus cryptStatus = CCCrypt(kCCDecrypt, kCCAlgorithmAES128, kCCOptionPKCS7Padding,
keyPtr, kCCKeySizeAES256,
NULL /* initialization vector (optional) */,
[self bytes], dataLength, /* input */
buffer, bufferSize, /* output */
&numBytesDecrypted);
if(cryptStatus == kCCSuccess)
{
//the returned NSData takes ownership of the buffer and will free it on deallocation
return [NSData dataWithBytesNoCopy:buffer length:numBytesDecrypted];
}
free(buffer); //free the buffer
return nil;
}
不同的結果,當我把這種方法與此線......不同的結果
NSString *password = @"E7VRcIXn8yb2Ab+t/in9UzRof6vOpOYebgKbpt1GOcfDF8rpc5nZXngx1G8QfbDqsVrwZw26609GVwruUBrOirCI/WUT8U87fbD6lSy/zPwFIYC113LgXIEylYgzIWO4";
NSString *pwd = [password AES256DecryptWithKey: @"abcd"];
if (pwd) {
NSString *checkKey = @"0sSBf7Ncyov+uzvDikOBiA==";
NSString *uncryptChk = [checkKey AES256DecryptWithKey: pwd];
在XCode4中,結果是"abcd"
,而在XCode5中結果是""
。
請注意,由於iOS 7仍處於NDA之下,因此您不得在官方Apple Developers論壇之外討論此問題。我建議你把它發佈在那裏,因爲你會有更多的運氣獲得真正的答案。 – rckoenes
嗨,你找到它的任何解決方案....? – Hindu