The SCRAMApp is an iOS application that uses SCRAM (aka rfc5802) to demonstrate the use of SCRAM to authenticate. It includes an implementation of the Salted Challenge Response Authentication Mechanism written in Swift.
Since this is an app, the SCRAM implementation cannot be easily reused from another application.
Please see the TODO below on what it takes to create SCRAM as a Swift framework. Pull requests are welcomed.
- Support of a SCRAM-SHA-1 authentication exchange without the use of channel binding
- Support channel binding
- Create test cases that use both usernames and passwords with non-ASCII codepoints.
Informative Note: Implementors are encouraged to create test cases that use both usernames and passwords with non-ASCII codepoints. In particular, it's useful to test codepoints whose "Unicode Normalization Form C" and "Unicode Normalization Form KC" are different. Some examples of such codepoints include Vulgar Fraction One Half (U+00BD) and Acute Accent (U+00B4).
See 3: SCRAM Algorithm Overview
Before sending the username to the server, the client SHOULD prepare the username using the "SASLprep" profile [RFC4013] of the "stringprep" algorithm [RFC3454] treating it as a query string (i.e., unassigned Unicode code points are allowed). If the preparation of the username fails or results in an empty string, the client SHOULD abort the authentication exchange (*).
- Create a Swift framework. See Adding CommonCrypto to custom Swift framework and CommonCrypto lacks module definiton
- An Alamofire component library that supports SCRAM over HTTP.
iOS 8.4
Xcode 7.3.1
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