First commit

.gitignore

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+# Xcode
+#
+# gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore
+
+## Build generated
+build/
+DerivedData
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata
+
+## Other
+*.xccheckout
+*.moved-aside
+*.xcuserstate
+*.xcscmblueprint
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+
+# CocoaPods
+#
+# We recommend against adding the Pods directory to your .gitignore. However
+# you should judge for yourself, the pros and cons are mentioned at:
+# http://guides.cocoapods.org/using/using-cocoapods.html#should-i-ignore-the-pods-directory-in-source-control
+#
+# Pods/
+
+# Carthage
+#
+# Add this line if you want to avoid checking in source code from Carthage dependencies.
+# Carthage/Checkouts
+
+Carthage/Build

README.md

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+SwiftyRSA
+=========
+
+Public key RSA encryption in Swift.
+
+Usage
+-----
+
+### Add keys ###
+
+First of all, create an instance of `SwiftyRSA`:
+
+```
+let rsa = SwiftyRSA()
+```
+
+#### Public key (PEM) ####
+
+```
+let pubPath   = bundle.pathForResource("public", ofType: "pem")!
+let pubString = NSString(contentsOfFile: pubPath, encoding: NSUTF8StringEncoding, error: nil)! as String
+let pubKey    = rsa.publicKeyFromPEMString(pubString)!
+```
+
+#### Public key (DER) ####
+
+```
+let rsa     = SwiftyRSA()
+let pubPath = bundle.pathForResource("public", ofType: "der")!
+let pubData = NSData(contentsOfFile: pubPath)!
+let pubKey  = rsa.publicKeyFromDERData(pubData)!
+```
+
+#### Private key (PEM) ####
+
+```
+let privPath   = bundle.pathForResource("private", ofType: "pem")!
+let privString = NSString(contentsOfFile: privPath, encoding: NSUTF8StringEncoding, error: nil)! as String
+let privKey    = rsa.privateKeyFromPEMString(privString)!
+```
+
+### Encrypt ###
+
+```
+let encryptedData = rsa.encryptString(str, publicKey: pubKey)!
+let encryptedString = NSString(data: encrypted, encoding: NSUTF8StringEncoding)!
+```
+
+### Decrypt ###
+
+```
+let decrypted = rsa.decryptData(encrypted, privateKey: privKey)!
+let encryptedString = NSString(data: encrypted, encoding: NSUTF8StringEncoding)!
+```
+
+Inspired from
+-------------
+
+ - <http://blog.flirble.org/2011/01/05/rsa-public-key-openssl-ios/>
+ - <https://github.com/lancy/RSADemo>