2014/10/15 下午 10:03:31

iphone Programming Glossary: aes

AES Encryption for an NSString on the iPhone

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

Encryption for an NSString on the iPhone Can anybody point me in the right direction to be able to encrypt a string returning.. right direction to be able to encrypt a string returning another string with the encrypted data I've been trying with AES256 encryption. I want to write a method which takes two NSString instances one being the message to encrypt and the other.. 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..

Encrypted NSData to NSString in obj-c?

http://stackoverflow.com/questions/1417893/encrypted-nsdata-to-nsstring-in-obj-c

NSData to NSString in obj c I have an iPhone app which encrypts an inputted NSString using CCCrypt AES256 and a plaintext key. The string and key are given to the encryption method which returns an NSData object. Requesting.. dataUsingEncoding and initWithData encoding methods to convert between NSData and NSString. Even with these note that AES encrypted data will probably not translate well into strings as is some byte sequences just won't play nicely so it's a.. wiki page on the topic. Edit I was assuming you'd combine this with my answer to your previous question on AES encryption of NSString objects. Encoding data as Base64 doesn't place any restrictions on the data itself it can certainly..

Does my application “contain encryption”?

http://stackoverflow.com/questions/2135081/does-my-application-contain-encryption

as exemptions under question 2 you need to submit for an ERN authorization . Examples of standard encryption are AES SSL https . This authorization requires that you submit an annual report to two U.S. Government agencies with information..

how to use DES algorithm to encrypt or decrypt some data in object-c嚗?/a>

http://stackoverflow.com/questions/4601347/how-to-use-des-algorithm-to-encrypt-or-decrypt-some-data-in-object-c

AES interoperability between .Net and iPhone?

http://stackoverflow.com/questions/538435/aes-interoperability-between-net-and-iphone

interoperability between .Net and iPhone I need to encrypt a string on the iPhone and send it to a .Net web service for.. 17 symmetric encryption with the iphone sdk AFAIK my key settings are the same result.BlockSize 128 iPhone kCCBlockSizeAES128 result.KeySize 128 kCCBlockSizeAES128 result.Mode CipherMode.CBC result.Padding PaddingMode.PKCS7 kCCOptionPKCS7Padding.. sdk AFAIK my key settings are the same result.BlockSize 128 iPhone kCCBlockSizeAES128 result.KeySize 128 kCCBlockSizeAES128 result.Mode CipherMode.CBC result.Padding PaddingMode.PKCS7 kCCOptionPKCS7Padding I tried different ways of generating..

AESCrypt decryption between iOS and PHP

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

decryption between iOS and PHP I am having a heck of a time figuring out how to decrypt a string encrypted with the.. between iOS and PHP I am having a heck of a time figuring out how to decrypt a string encrypted with the NSData AESCrypt.m Explained here I have been looking at a handful of other threads but I only need the iDevice to send a string to.. 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..

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

I am unable to decrypt it in IOS. I had tried many libraries like NSDATA CommonCrypto NSFileManager AES NSDATA aes but i have not got success in decrypting the file. Following is the objective C code used NSData AESDecryptWithPassphrase..

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

image probably big ones If the answer to the first question is NO then why this error iphone encryption uiimage aes nsdata share improve this question No not really. Some hash functions do have a maximum but that's more in the order..

AES Encryption for an NSString on the iPhone

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

an encrypted string but I hope that's as simple as kCCEncrypt kCCDecrypt. iphone objective c encryption nsstring aes share improve this question Since you haven't posted any code it's difficult to know exactly which problems you're encountering...

How can I make my AES encryption identical between Java and Objective-C (iPhone)?

http://stackoverflow.com/questions/2280375/how-can-i-make-my-aes-encryption-identical-between-java-and-objective-c-iphone

ECB and CBC on the java side and it had no effect. Can anyone help please.... java iphone objective c encryption aes share improve this question Since the CCCrypt takes an IV does it not use a chaining block cipher method such as CBC.. was right. I thought I could contribute it echo Now then and what is this nonsense all about. Do you know openssl enc aes 128 ecb K echo 1234567890123456 xxd p iv 0 xxd 0000000 7a68 ea36 8288 c73d f7c4 5d8d 2243 2577 zh.6... .. . C w 0000010..

Help for AES-128 Bit Algorithm ?? i want to encrypt it

http://stackoverflow.com/questions/2774239/help-for-aes-128-bit-algorithm-i-want-to-encrypt-it

to encrypt it Can i get link for AES 128 Bit Algorithm any sample code please help objective c iphone encryption aes share improve this question AES 128 is already implemented in the Security framework and CommonCrypto API for the iPhone...

How to decompress an AES-256 encrypted Zip file?

http://stackoverflow.com/questions/4063725/how-to-decompress-an-aes-256-encrypted-zip-file

decompressing AES 256 bit archives built in Winzip compression utility. Thanks. iphone objective c decompression aes winzip share improve this question zlib is part of the iPhone sdk and is a well established and free option. If you're..

AES256 String encryption on PHP and decryption on iPhone

http://stackoverflow.com/questions/4455104/aes256-string-encryption-on-php-and-decryption-on-iphone

autorelease NSLog response but it doesn't work anyone has a method that works thanks php iphone encryption aes share improve this question I bet you're stumbling upon a padding issue. I addressed this topic in three SO answers..

iPHone - AES 256 encryption without padding

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

modes only. How can I code my iphone app so that encryption decryption happens successfully iphone security aes share improve this question Block ciphers will always be a multiple of their block size. When data does not fit exactly..

AES interoperability between .Net and iPhone?

http://stackoverflow.com/questions/538435/aes-interoperability-between-net-and-iphone

cannot be removed. The .Net code is from http blog.realcoderscoding.com index.php 2008 07 dot net encryption simple aes wrapper The iPhone code uses the sample code from http nootech.wordpress.com 2009 01 17 symmetric encryption with the iphone.. generating ciphertext. hello hello is e0PnmbTg 3cT3W 92CDw1Q in .Net yrKe5Z7p7MNqx9 CbBvNqQ on iPhone and openssl enc aes 128 cbc nosalt a in hello.txt pass pass hello generates QA Ul r6Zmr7yHipMcHSbQ Update I've posted the working code for this.. hello generates QA Ul r6Zmr7yHipMcHSbQ Update I've posted the working code for this here . .net iphone encryption aes share improve this question At the very least you are using differing initialization vectors IV . The .Net code uses..

Encrypting 16 bytes of UTF8 with SecKeyWrapper breaks (ccStatus == -4304)

http://stackoverflow.com/questions/5884119/encrypting-16-bytes-of-utf8-with-seckeywrapper-breaks-ccstatus-4304

length falling on the block boundary. Has anyone run into this issue using CommonCryptor or SecKeyWrapper iphone ios aes share improve this question The following lines... We don't want to toss padding on if we don't need to if pkcs7 kCCOptionECBMode..