HMAC Authentication

We have developed example projects that illustrate the implementation of HMAC authentication for communication with the PORTOS API.


The source project and examples can be found in ninedigit/nws4-php GitHub project.


The example project for C# can be found in ninedigit/AspNetCore.Identity.NWS4.Examples GitHub project.

Examples are using the NineDigit.NWS4 library, which can be found as NuGet package at

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