https://github.com/dorssel/dotnet-aes-extra

.NET Standard 2.0 implementation of AES-CTR, AES-CMAC, SIV-AES (aka AES-SIV), AES-CMAC-PRF-128 (aka PRF_AES128_CMAC), and PBKDF2-AES-CMAC-PRF-128.
https://github.com/dorssel/dotnet-aes-extra

aes aes-cmac aes-cmac-prf-128 aes-cmac-siv aes-ctr aes-ctr-mode aes-siv cmac cryptography dotnet dotnet-standard pbkdf2-aes-cmac-prf-128 siv siv-aes siv-mode

Last synced: 3 months ago
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.NET Standard 2.0 implementation of AES-CTR, AES-CMAC, SIV-AES (aka AES-SIV), AES-CMAC-PRF-128 (aka PRF_AES128_CMAC), and PBKDF2-AES-CMAC-PRF-128.

• Host: GitHub
• URL: https://github.com/dorssel/dotnet-aes-extra
• Owner: dorssel
• License: mit
• Created: 2022-07-17T21:38:26.000Z (almost 3 years ago)
• Default Branch: master
• Last Pushed: 2025-04-01T21:35:38.000Z (3 months ago)
• Last Synced: 2025-04-01T22:33:52.064Z (3 months ago)
• Topics: aes, aes-cmac, aes-cmac-prf-128, aes-cmac-siv, aes-ctr, aes-ctr-mode, aes-siv, cmac, cryptography, dotnet, dotnet-standard, pbkdf2-aes-cmac-prf-128, siv, siv-aes, siv-mode
• Language: C#
• Homepage: https://dorssel.github.io/dotnet-aes-extra/
• Size: 423 KB
• Stars: 3
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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# dotnet-aes-extra

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.NET Standard 2.0 implementation of the following AES modes that are not included in .NET 6.0 / .NET Framework:

- AES-CTR, as defined by [NIST SP 800-38A](https://csrc.nist.gov/publications/detail/sp/800-38a/final)

- AES-CMAC, as defined by [NIST SP 800-38B](https://csrc.nist.gov/publications/detail/sp/800-38b/final)

- SIV-AES, as defined by [RFC 5297](https://datatracker.ietf.org/doc/html/rfc5297) \

  (Note: this is often refered to as AES-SIV, but the original RFC specification uses the name SIV-AES)

The implementation is for AnyCPU, and works on all platforms.

# Usage

The released binary NuGet packages and the .NET assemblies contained therein:

- use [Strong Naming](https://docs.microsoft.com/en-us/dotnet/standard/library-guidance/strong-naming),

- include [SourceLink](https://docs.microsoft.com/en-us/dotnet/standard/library-guidance/sourcelink),

- include [IntelliSense](https://docs.microsoft.com/en-us/visualstudio/ide/using-intellisense) compatible documentation, and

- are signed and timestamped with Authenticode.

All public classes are in the `Dorssel.Security.Cryptography` namespace.

- `AesCtr` is modeled after .NET's `Aes`. So, instead of `Aes.Create()`, use `AesCtr.Create()`.

- `AesCmac` is modeled after .NET's `HMACSHA256`. So, instead of `new HMACSHA256(key)`, use `new AesCmac(key)`.

- `AesSiv` is modeled after .NET's `AesGcm`. So, instead of `new AesGcm(key)`, use `new AesSiv(key)`.