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2014/10/15 ¤U¤È 10:03:31

iphone Programming Glossary: aes256encryptwithkey

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

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

to use a category your class add a #import NSData Encryption.h NSData Encryption.h @interface NSData Encryption NSData AES256EncryptWithKey NSString key NSData AES256DecryptWithKey NSString key @end NSData Encryption.m #import NSData Encryption.h #import CommonCrypto.. Encryption.m #import NSData Encryption.h #import CommonCrypto CommonCryptor.h @implementation 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..

Iphone Encryption on UIImage - kCCBufferTooSmall error on AES 256 encryption

http://stackoverflow.com/questions/13248786/iphone-encryption-on-uiimage-kccbuffertoosmall-error-on-aes-256-encryption

srcData UIImageJPEGRepresentation srcImage 1.0 NSLog @ srcData length d srcData length NSData encryptedData srcData AES256EncryptWithKey KEY NSLog @ encrypted data length d encryptedData length ........ later.. decryption decryptedImage UIImage imageWithData.. this code is working successfully. But when I run the code in an image with higher resolutions say 256 256 the method AES256EncryptWithKey failing with error kCCBufferTooSmall 4301 . Questions Does AES 256 impose any limit on the size in bytes of the payload..

AES Encryption for an NSString on the iPhone

http://stackoverflow.com/questions/1400246/aes-encryption-for-an-nsstring-on-the-iphone

NSString secret @ text to encrypt NSData plain secret dataUsingEncoding NSUTF8StringEncoding NSData cipher plain AES256EncryptWithKey key printf s n cipher description UTF8String plain cipher AES256DecryptWithKey key printf s n plain description UTF8String.. NSData encryptString NSString plaintext withKey NSString key return plaintext dataUsingEncoding NSUTF8StringEncoding AES256EncryptWithKey key NSString decryptData NSData ciphertext withKey NSString key return NSString alloc initWithData ciphertext AES256DecryptWithKey..

AESCrypt decryption between iOS and PHP

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

then it gets decrypted inside PHP where it gets stored into a database . This code NSString encryptedString @ Hello AES256EncryptWithKey @ a16byteslongkey NSLog @ The strign encrypted @ encryptedString Returns the string encrypted 7opqbb7sEVNoXplyQv X8g And.. Disclaimer I have zero iPhone development experience. Short answer what tc. said. Something is horribly wrong with the AES256EncryptWithKey Being AES256 you would expect it to require a 32 byte key not a 16 byte key. But OK say it pads shorter keys with null bytes..

Encryption App approval from Apple

http://stackoverflow.com/questions/8736298/encryption-app-approval-from-apple

algorithm. I didn't write this code just copied and pasted it from the web and included it in my app. NSData AES256EncryptWithKey NSString key NSData AES256DecryptWithKey NSString key Now for the million dollar question. What kind of approval process..