v9.0.0

Changelog

• Added .NET 9 support

Lifecycle

Official End-of-Life dates for target frameworks are:

• .NET 8 EOL: November 2026
• .NET 9 EOL: May 2026

While support for .NET 9 ends sooner than one for .NET 8, to keep versioning simple, we will keep supporting SimpleOTP 9.x and .NET 9 up until .NET 8 EOL (November 2026).

If this will be proven to be an optimal strategy, the same cycle will be applied for v10 and v11

v8.0.0

• Complete library overhaul
• Added DependencyInjection package for ASP.NET projects

See README for more information.

Important

This library doesn't support .NET versions earlier .NET 8 (including .NET Core, .NET Standard, etc.), and introduces breaking changes compared to v1. Treat v1 as a separate library that has been deprecated in favor of this one.

[1.2.3] SimpleOTP library package

• Fixed invalid code generation with secrets which are lowercase or space-separated

[1.2.2] SimpleOTP library package

• Fixed Base32 encoder
• Updated NuGet dependency packages

[1.2.1] SimpleOTP library package

• Fixed generated secret length
• Fixed URI encoding issues in 'OTPConfiguration.GetUri()'

[1.2.0] SimpleOTP library package

• Expanded support to .NET Standard 2.1 and .NET Core 3.1
• Fixed some documentation typos (#14)

[1.1.0] SimpleOTP library package

• Updated OTP validation methods signatures: ValidateCode() is now deprecated and will be removed in future releases

[1.0.0] SimpleOTP library package

.NET library for TOTP/HOTP implementation on server (ASP.NET) or client (Xamarin) side

Features

• Generate and validate OTP codes
• Support of TOTP (RFC 6238) and HOTP (RFC 4226) algorithms
• Support of HMAC-SHA1, HMAC-SHA256 and HMAC-SHA512 hashing algorithms
• Setup URI parser
• Database-ready configuration models
• Configuration generator for server-side implementation
• QR code generator
• No dependencies