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2014/10/15 ¤U¤È 10:05:47

iphone Programming Glossary: cryptoexercise

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

within the 256 byte limitation of my 2048 bit key. Here's the iPhone encryption method pretty much verbatim from the CryptoExercise sample app 's wrapSymmetricKey method NSData encrypt NSString plainText usingKey SecKeyRef key error NSError err size_t..

AES Encryption for an NSString on the iPhone

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

data. I've tried the technique detailed in the first comment on this post but I've had no luck so far. Apple's CryptoExercise certainly has something but I can't make sense of it... I've seen lots of references to CCCrypt but it's failed in every..

Converting Raw RSA Key value to SecKeyRef Object for Encryption

http://stackoverflow.com/questions/1536894/converting-raw-rsa-key-value-to-seckeyref-object-for-encryption

is not in X509 format thanks in advance iphone share improve this question The following code comes from Apple's CryptoExercise example in SecKeyWrapper.m. It assumes the publicKey NSData object is the binary DER encoded ASN.1 object not base 64 encoded...

RSA Encryption on iPhone

http://stackoverflow.com/questions/2418337/rsa-encryption-on-iphone

improve this question You probably want to look at this thread on the Apple Developer Forums and also check out the CryptoExercise sample code. In short the recommendation is that you distribute your public key as a DER encoded X.509 certificate because..

How to find out the modulus and exponent of RSA Public Key on iPhone/Objective C

http://stackoverflow.com/questions/3840005/how-to-find-out-the-modulus-and-exponent-of-rsa-public-key-on-iphone-objective-c

Busted my head on this but here's a solution I've found without using any external packages . First go to Apple's CryptoExercise example. Download the SecKeyWrapper class from there. The interesting function in that class is getPublicKeyBits. Link to.. function in that class is getPublicKeyBits. Link to the example http developer.apple.com library ios #samplecode CryptoExercise Introduction Intro.html The bits you will receive is a DER encoded wiki it public key containing both the modulus and exp...

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

16 bytes of UTF8 with SecKeyWrapper breaks ccStatus 4304 I'm using Apple's SecKeyWrapper class from the CryptoExercise sample code in the Apple docs to do some symmetric encryption with AES128. For some reason when I encrypt 1 15 characters.. that satisfy length 16 0 and those that don't. And again this is a modification to the SecKeyWrapper class of the CryptoExercise example code. Not sure how this impacts those of you using CommonCrypto with home rolled wrappers. share improve this answer..

Saving SecKeyRef device generated public/private key pair on disk

http://stackoverflow.com/questions/5988735/saving-seckeyref-device-generated-public-private-key-pair-on-disk

iPhone RSA algorithm with modulus and exponent [duplicate]

http://stackoverflow.com/questions/6665832/iphone-rsa-algorithm-with-modulus-and-exponent

This would allow you to store the key using the addPeerPublicKey keyBits method from SecKeyWrapper in the Apple CryptoExercise example. Or from the perspective of the low level API you can use SecItemAdd . NSString peerName @ Test Public Key NSData..

RSA Encryption public key?

http://stackoverflow.com/questions/7255991/rsa-encryption-public-key

This would allow you to store the key using the addPeerPublicKey keyBits method from SecKeyWrapper in the Apple CryptoExercise example. Or from the perspective of the low level API you can use SecItemAdd . NSString peerName @ Test Public Key NSData..