SwiftPM

// swift-tools-version:5.0import PackageDescriptionletpackage=Package(  name:"MyTool",  dependencies:[.package(url:"https://github.com/tgymnich/OTPKit.git",.from:"1.0.0"),],  targets:[.target(name:"MyTool", dependencies:["OTPKit"]),])

Features

Usage

Accounts

Creating an Account from an URL

leturl=URL(string:"otpauth://totp/foo?secret=wew3k6ztd7kuh5ucg4pejqi4swwrrneh72ad2sdovikfatzbc5huto2j&algorithm=SHA256&digits=6&period=30")!letaccount=Account<TOTP>(from: url)print(account?.otpGenerator.code()) // Prints the TOTP code for the current time.

Saving and loading of accounts from the Keychain

letkeychain=Keychain(service:"ch.gymni.test.otpauth")leturl=URL(string:"otpauth://totp/foo?secret=wew3k6ztd7kuh5ucg4pejqi4swwrrneh72ad2sdovikfatzbc5huto2j&algorithm=SHA256&digits=6&period=30")!lettotp=TOTP(algorithm:.sha256, secret:"wew3k6ztd7kuh5ucg4pejqi4swwrrneh72ad2sdovikfatzbc5huto2j".base32DecodedData!, digits:6, period:30)letaccount=Account(label:"foo", otp: totp)try account.save(to: keychain)letaccounts=try?Account.loadAll(from: keychain)

Deleting all accounts from keychain

letkeychain=Keychain(service:"ch.gymni.test.otpauth")try! keychain.removeAll()

Generating TOTP codes

For a specific Date

letdate=Date(timeIntervalSince1970:1234)lettotp=TOTP(algorithm:.sha256, secret:"01234567890".data(using:.ascii)!, digits:6, period:30)letcode= totp.code(for: date)

For the current period

lettotp=TOTP(algorithm:.sha256, secret:"01234567890".data(using:.ascii)!, digits:6, period:30)letcode= totp.code()

For a custom period

letperiod:UInt64=1234lettotp=TOTP(algorithm:.sha256, secret:"01234567890".data(using:.ascii)!, digits:6, period:30)letcode= totp.code(for: period)

Using NotificationCenter

lettotp=TOTP(algorithm:.sha256, secret:"01234567890".data(using:.ascii)!, digits:6, period:30)NotificationCenter.default.addObserver(forName:.didGenerateNewOTPCode, object: totp, queue:.main){ notificationinletcode= notification.userInfo?[TOTP.UserInfoKeys.code]as?String}

Using a Combine Publisher

lettotp=TOTP(algorithm:.sha256, secret:"01234567890".data(using:.ascii)!, digits:6, period:TOTPPublisherTests.period)letpub=TOTP.TOTPPublisher(totp: totp).sink{ codeinprint(code)}