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PKCS Extensions for .Net Core and Blazor.

License: GNU General Public License v3.0

C# 97.51% PowerShell 2.49%

pkcsextensions's Introduction

PKCS Extensions

PKCS extensions for .Net Standard, .Net Core and Blazor BCL without external dependencies.

Code is focused for AOT compilation and IL linking (small library, avoid reflection, minimalize internal code dependencies). Cryptography in Blazor WebAssembly is not supported in versions: 5.0, 6.0.

Usage

Install package dotnet add package PkcsExtensions.

Features

Namespace PkcsExtensions:
- ECDsaExtensions - export keys to DER/PEM format on ECDsa.
- HashAlgorithmConvertor - convert HashAlgorithmName to OID, implementation,...
- HexConvertor - convert from/to hexadecimal.
- PemFormater - helper class to convert DER to PEM and back.
- RSAExtensions - export keys to DER/PEM format on RSA.
- SecureStringHelper - safe provide SecureString to byte array.
Namespace PkcsExtensions.Algorithms:
- DigestRandomGenerator - Secure random generator based on hash algorithm (inspired from Bauncy Castle). Is helpful for password generation and entropy collection.
- HashAlgorithmExtensions - More friendly extensions for HashAlgorithm types.
- RngRandomGenerator - wrapper to RandomNumberGenerator
- SP800_108 - Standard KDF function in counter mode (inspired from Inferno library).
Namespace PkcsExtensions.ASN1 - ASN.1 writer and reader from Microsoft corefx repository.
Namespace PkcsExtensions.Pkcs1:
- Pkcs1DigestInfo - Is helpful for RSA signing using SmartCards through PKCS#11.
- ECDsaSigValue - Encode ECDsa-Sig-Value (RFC5480).
Namespace PkcsExtensions.Pkcs7 - Missing features for SignedCms.
Namespace PkcsExtensions.X509Certificates:
- X509Certificate2Extensions - X509Certificate2 extensions for determine the usage of certificate.
- X509Certificate2EncodeExtensions - encode (DER/PEM) extension for X509Certificate2.
- X509Certificate2NameInfoExtensions - X509Certificate2 extensions for extract values by OID from isser and subject name - method GetNameInfo.

Examples

See code examples in test project.

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pkcsextensions's Issues

Add non nullable types support.

Parse subject and issuer

Add extension method for X509Certificate2 to parse subject and issuer to OID and X509EntryName.

HashAlgorithmNameConvertor add TryFromOid method

(use tuples and pattern matching)

Add source link to builds

https://github.com/dotnet/sourcelink

https://github.com/clairernovotny/DeterministicBuilds

Add

Add [System.Runtime.Versioning.UnsupportedOSPlatform("browser")] for class is not supported in current WASM runtimne.

See dotnet/runtime#40074.

Add extensions to read certificate policy

Add X509Certificate Extension

Add extensions for X509Certificate2:

IReadonlyList<string> GetNameInfo(string nameTypeOid, bool forIssuer );
IReadonlyList<string> GetNameInfo(string nameTypeOid, X509NameSource nameSource);
// enum X509NameSource { Subject, Issuer }

Get values from subject and issuer name.

Improve performace in .Net 5

See https://docs.microsoft.com/en-us/dotnet/api/system.gc.allocateuninitializedarray?view=net-5.0

and SkipLocalsInit attribute.

Add code examples

Add code examples in sample md file or usage tests.

Add method to read key and certificate file

Add method for read key and certificate from file/memory - in DER or PEM format.

eg: X509Certificate2 Load(byte[] certificateContent, byte[] keyContent) - returns certificate with private key.

Add compiute hash async from Stream

Fix typo error

PkcsExtenions -> PkcsExtensions

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