How to decode NSData on iOS with RSA key?

Question

I like to know how to decrypt (and encrypt) NSData with an RSA key? I have know idea how to do this. Is there already a build in methode in the normal iOS Frameworks?

do you mean decrypt and encrypt? – danh Dec 14 '13 at 20:38 — danh, Dec 14 '13 at 20:38

score 1 · Accepted Answer · answered Dec 14 '13 at 21:11

1

Include this in your project: <CommonCrypto/CommonCryptor.h> and try the function CCCrypt. You can find tha man page here

answered Dec 14 '13 at 21:11

Levi

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OK, I worked it out, I can encrypt and decrypt the NSData on one idevice, but when I create a QR code with the encrypted NSData and read it on another iOS device and encrypt it with the same key I get an invalide NSData. The encrypted string is the same, but I cant decode it, do you know any fix? – David Gölzhäuser Dec 16 '13 at 21:02

How to decode NSData on iOS with RSA key?

1 Answers1