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2014/10/15 下午 10:12:38

iphone Programming Glossary: plaintext

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

rk key KEYBITS unsigned char srcBytes unsigned char self bytes int index 0 while index self length unsigned char plaintext 16 unsigned char ciphertext 16 int j for j 0 j sizeof ciphertext j if index self length break ciphertext j srcBytes index.. j sizeof ciphertext j if index self length break ciphertext j srcBytes index rijndaelDecrypt rk nrounds ciphertext plaintext ret appendBytes plaintext length sizeof plaintext return ret This code works well for text but unable to decrypt files... index self length break ciphertext j srcBytes index rijndaelDecrypt rk nrounds ciphertext plaintext ret appendBytes plaintext length sizeof plaintext return ret This code works well for text but unable to decrypt files. When i save the decrypted..

Having trouble decrypting in C# something encrypted on iPhone using RSA

http://stackoverflow.com/questions/1133724/having-trouble-decrypting-in-c-sharp-something-encrypted-on-iphone-using-rsa

public key the byte array is different from the iPhone's version and readily decrypts using the private key. The raw plaintext string is 115 characters so it's within the 256 byte limitation of my 2048 bit key. Here's the iPhone encryption method.. try var encryptedBytes Convert.FromBase64String cipherText var decryptedBytes rsa.Decrypt encryptedBytes false var plaintext Encoding.UTF8.GetString decryptedBytes return plaintext catch CryptographicException e throw new ApplicationException.. var decryptedBytes rsa.Decrypt encryptedBytes false var plaintext Encoding.UTF8.GetString decryptedBytes return plaintext catch CryptographicException e throw new ApplicationException Unable to decrypt payload. e My suspicion was that there..

AES Encryption for an NSString on the iPhone

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

to write two methods that wrap the functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString key return plaintext dataUsingEncoding NSUTF8StringEncoding AES256EncryptWithKey key NSString decryptData.. functionality you need in forward and reverse... NSData encryptString NSString plaintext withKey NSString key return plaintext dataUsingEncoding NSUTF8StringEncoding AES256EncryptWithKey key NSString decryptData NSData ciphertext withKey NSString..

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 data description where.. . I need to return an NSString to the user which can be used to decrypt back to the original string using the same plaintext key. If the 'description' property of the NSData object can return a string is there any way I can produce an NSString from..

How to decrypt an encrypted Apple iTunes iPhone backup?

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

information in them. And after backup_tool finishes we can use decryption to get the sensitive information back in plaintext # You 耱l need to install the M2Crypto library before keychain_tool # will work. These commands may be all you need brew..

Creating ARPA language model file with 50,000 words

http://stackoverflow.com/questions/5743390/creating-arpa-language-model-file-with-50-000-words

as well. There is no web based tool I'm aware of like the Sphinx Knowledge Base Tool that will munge a 50 000 word plaintext corpus and return an ARPA language model. But you can obtain an already complete 64 000 word DMP language model which can..

Animaton in UIView like Alert (POP UP)

http://stackoverflow.com/questions/5814798/animaton-in-uiview-like-alert-pop-up

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

that AES128 uses 16 bytes per encrypted block so I get the impression that the error has something to do with the plaintext length falling on the block boundary. Has anyone run into this issue using CommonCryptor or SecKeyWrapper iphone ios aes..

AESCrypt decryption between iOS and PHP

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

research. The null padding on your key is likely because AES256 requires a 32 byte key. The 0x0B padding on the plaintext is thanks to PKCS7 . PKCS7 is a padding scheme where the byte used for padding is equal in value to the number of bytes.. of 'Hello' turning your 5 byte input into a 16 byte block for AES. 11 0x0B. Thus the code above will not work when the plaintext is not length 5. Try the following instead pad_char ord substr result 1 result_without_padding substr result 0 strlen result..

Having trouble decrypting in C# something encrypted on iPhone using RSA

http://stackoverflow.com/questions/1133724/having-trouble-decrypting-in-c-sharp-something-encrypted-on-iphone-using-rsa

method pretty much verbatim from the CryptoExercise sample app 's wrapSymmetricKey method NSData encrypt NSString plainText usingKey SecKeyRef key error NSError err size_t cipherBufferSize SecKeyGetBlockSize key uint8_t cipherBuffer NULL cipherBuffer.. NULL cipherBuffer malloc cipherBufferSize sizeof uint8_t memset void cipherBuffer 0x0 cipherBufferSize NSData plainTextBytes plainText dataUsingEncoding NSUTF8StringEncoding OSStatus status SecKeyEncrypt key kSecPaddingNone const uint8_t.. malloc cipherBufferSize sizeof uint8_t memset void cipherBuffer 0x0 cipherBufferSize NSData plainTextBytes plainText dataUsingEncoding NSUTF8StringEncoding OSStatus status SecKeyEncrypt key kSecPaddingNone const uint8_t plainTextBytes..

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

kCCAlgorithm3DES kCCOptionECBMode this could help vkey 123456789012345678901234 key kCCKeySize3DES nil init Vec iv vplainText Your Name plainText plainTextBufferSize void bufferPtr bufferPtrSize movedBytes EDIT 2 I played around with some command.. kCCOptionECBMode this could help vkey 123456789012345678901234 key kCCKeySize3DES nil init Vec iv vplainText Your Name plainText plainTextBufferSize void bufferPtr bufferPtrSize movedBytes EDIT 2 I played around with some command line to see which one.. this could help vkey 123456789012345678901234 key kCCKeySize3DES nil init Vec iv vplainText Your Name plainText plainTextBufferSize void bufferPtr bufferPtrSize movedBytes EDIT 2 I played around with some command line to see which one was right...

How to encrypt an NSString in Objective C with DES in ECB-Mode?

http://stackoverflow.com/questions/2512184/how-to-encrypt-an-nsstring-in-objective-c-with-des-in-ecb-mode

of 5 hours google and try'n'error NSString token @ us foo pw bar pwAlg false NSString key @ testtest const void vplainText size_t plainTextBufferSize plainTextBufferSize token length vplainText const void token UTF8String CCCryptorStatus ccStatus.. google and try'n'error NSString token @ us foo pw bar pwAlg false NSString key @ testtest const void vplainText size_t plainTextBufferSize plainTextBufferSize token length vplainText const void token UTF8String CCCryptorStatus ccStatus uint8_t bufferPtr.. NSString token @ us foo pw bar pwAlg false NSString key @ testtest const void vplainText size_t plainTextBufferSize plainTextBufferSize token length vplainText const void token UTF8String CCCryptorStatus ccStatus uint8_t bufferPtr NULL size_t bufferPtrSize..

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

Takes the X.509 certificate as NSData from dataWithContentsOfFile for example NSData encryptString NSString plainText withX509Certificate NSData certificate SecCertificateRef cert SecCertificateCreateWithData kCFAllocatorDefault __bridge.. noErr status SecTrustEvaluate trust trustResult SecKeyRef publicKey SecTrustCopyPublicKey trust const char plain_text plainText UTF8String size_t blockSize SecKeyGetBlockSize publicKey NSMutableData collectedCipherData NSMutableData data BOOL success..