2014/10/15 下午 10:12:27

iphone Programming Glossary: padded

How to decrypt a file in Objective C/IOS that is encrypted in php?

http://stackoverflow.com/questions/10078026/how-to-decrypt-a-file-in-objective-c-ios-that-is-encrypted-in-php

cbc mode the default for CommonCrypto. The padding to block size is with null characters rather nonstandard so the non padded length may be a problem. Not that you need yet another AES method this is the one I use #import CommonCrypto CommonCryptor.h..

iOS 5: Data encryption AES-256 EncryptWithKey: not found

http://stackoverflow.com/questions/11482470/ios-5-data-encryption-aes-256-encryptwithkey-not-found

NSData Encryption NSData AES256EncryptWithKey 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.. free the buffer return nil 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..

How to decrypt an encrypted Apple iTunes iPhone backup?

http://stackoverflow.com/questions/1498342/how-to-decrypt-an-encrypted-apple-itunes-iphone-backup

a manipulation of the backup password that users are prompted to enter by iTunes and passed to AppleMobileBackup.exe padded in a fashion dictated by CBC. However given the reference to the iPhone keychain I wonder whether the backup password might..

Extracting images from a PDF

http://stackoverflow.com/questions/2475450/extracting-images-from-a-pdf

dict cgColorSpace bps int rowBits bps spp width int rowBytes rowBits 8 pdf image row lengths are padded to byte alignment if rowBits 8 0 rowBytes maskImage SMaskImageFromImageDictionary dict if format CGPDFDataFormatRaw sourceImage..

What's wrong with how I'm using NSDateFormatter?

http://stackoverflow.com/questions/2993578/whats-wrong-with-how-im-using-nsdateformatter

e day of week e EEE EEEE F week of month g julian day since 1 1 4713 BC G era designator G GGG GGGG h hour 1 12 zero padded H hour 0 23 zero padded L month of year L LL LLL LLLL m minute of hour 0 59 zero padded M month of year M MM MMM MMMM Q.. F week of month g julian day since 1 1 4713 BC G era designator G GGG GGGG h hour 1 12 zero padded H hour 0 23 zero padded L month of year L LL LLL LLLL m minute of hour 0 59 zero padded M month of year M MM MMM MMMM Q quarter of year Q QQ QQQ.. G GGG GGGG h hour 1 12 zero padded H hour 0 23 zero padded L month of year L LL LLL LLLL m minute of hour 0 59 zero padded M month of year M MM MMM MMMM Q quarter of year Q QQ QQQ QQQQ s seconds of minute 0 59 zero padded S fraction of second..

What Techniques Are Best To Live Stream iPhone Video Camera Data To a Computer?

http://stackoverflow.com/questions/3964442/what-techniques-are-best-to-live-stream-iphone-video-camera-data-to-a-computer

thread to fill a buffer directly from AVCaptureOutput and a communications thread to send and rezero the buffer padded if need be to a previously specified host every x milliseconds. After you accomplish initial data transfer I would work..

send RSA public key to iphone and use it to encrypt

http://stackoverflow.com/questions/4211484/send-rsa-public-key-to-iphone-and-use-it-to-encrypt

using the public key using SecKeyEncrypt. On server decrypt the message. The message is short enough so that the PKCS1 padded result fits into 128 bytes. I don't know how to do 2~4. Anyone knows iphone c cryptography openssl rsa share improve..

iPHone - AES 256 encryption without padding

http://stackoverflow.com/questions/4540725/iphone-aes-256-encryption-without-padding

objective-c code to right pad a NSString?

http://stackoverflow.com/questions/5386351/objective-c-code-to-right-pad-a-nsstring

an NSString in objective c please For example want these strings Testing 123 Long String Hello World Short if right padded to a column width of say 12 and then a sting XXX is added to the end of each it would give Testing 123 xxx Hello World xxx.. format. Since you want the result to be left justified you need to precede the width specifier with a minus NSString padded NSString stringWithFormat @ 12@ someString Or if you wanted the result to be exactly 12 characters you can use both minimum..

AESCrypt decryption between iOS and PHP

http://stackoverflow.com/questions/6461419/aescrypt-decryption-between-ios-and-php

OK say it pads shorter keys with null bytes to make them 32 bytes. This might explain why your 16 byte key is being padded with 16 null characters. But when it comes to the actual act of encryption it's using AES 128 but with the 32 byte key... key. Say wha Converting tc.'s Python to PHP base64encoded_ciphertext '7opqbb7sEVNoXplyQv X8g ' key 'a16byteslongkey ' padded_key key . str_repeat chr 0x00 16 Argh result mcrypt_decrypt MCRYPT_RIJNDAEL_128 padded_key base64_decode base64encoded_ciphertext.. X8g ' key 'a16byteslongkey ' padded_key key . str_repeat chr 0x00 16 Argh result mcrypt_decrypt MCRYPT_RIJNDAEL_128 padded_key base64_decode base64encoded_ciphertext 'ecb' Yetch result ends up being padded with 0x0b's vertical tab . var_dump rtrim..