System.IdentityModel.Tokens.Jwt by: Microsoft

Includes types that provide support for creating, serializing and validating JSON Web Tokens. As of IdentityModel 7x, this is a legacy tool that should be replaced with Microsoft.IdentityModel.JsonWebTokens.

System.IO.Hashing by: Microsoft

Provides non-cryptographic hash algorithms, such as CRC-32. Commonly Used Types: System.IO.Hashing.Crc32 System.IO.Hashing.XxHash32

System.IO.Packaging by: Microsoft

Provides classes that support storage of multiple data objects in a single container.

System.IO.Pipelines by: Microsoft

Single producer single consumer byte buffer management. Commonly Used Types: System.IO.Pipelines.Pipe System.IO.Pipelines.PipeWriter System.IO.Pipelines.PipeReader

System.IO.Ports by: Microsoft

Provides classes for controlling serial ports. Commonly Used Types: System.IO.Ports.SerialPort

System.Linq.Dynamic.Core by: ZZZ Projects, Stef Heyenrath, Microsoft, Scott Guthrie, King Wilder, Nathan Arnott

This is a .NETStandard / .NET Core port of the the Microsoft assembly for the .Net 4.0 Dynamic language functionality.

System.Management by: Microsoft

Provides access to a rich set of management information and management events about the system, devices, and applications instrumented to the Windows Management Instrumentation (WMI) infrastructure. Commonly Used Types: System.Management.ManagementClass System.Management.ManagementObject System.Management.SelectQuery

System.Net.Http.Json by: Microsoft

Provides extension methods for System.Net.Http.HttpClient and System.Net.Http.HttpContent that perform automatic serialization and deserialization using System.Text.Json. Commonly Used Types: System.Net.Http.Json.HttpClientJsonExtensions System.Net.Http.Json.HttpContentJsonExtensions System.Net.Http.Json.JsonContent

System.Numerics.Tensors by: Microsoft

Provides support for operating over tensors.

System.Private.Uri by: Microsoft

Internal implementation package not meant for direct consumption. Please do not reference directly. Provides implementation of System.Uri. When using NuGet 3.x this package requires at least version 3.4.

System.Reflection.Context by: Microsoft

Provides CustomReflectionContext to enable customized reflection contexts.

System.Reflection.Metadata by: Microsoft

This package provides a low-level .NET (ECMA-335) metadata reader and writer. It's geared for performance and is the ideal choice for building higher-level libraries that intend to provide their own object model, such as compilers. The metadata format is defined by the ECMA-335 - Common Language Infrastructure (CLI) specification. The System.Reflection.Metadata library is built-in as part of the shared framework in .NET Runtime. The package can be installed when you need to use it in other target frameworks.

System.Resources.Extensions by: Microsoft

Provides classes which read and write resources in a format that supports non-primitive objects. Commonly Used Types: System.Resources.Extensions.DeserializingResourceReader System.Resources.Extensions.PreserializedResourceWriter

System.Runtime.Caching by: Microsoft

Provides classes to use caching facilities. Commonly Used Types: System.Runtime.Caching.CacheEntryChangeMonitor System.Runtime.Caching.CacheEntryRemovedArguments System.Runtime.Caching.CacheEntryUpdateArguments System.Runtime.Caching.CacheItem System.Runtime.Caching.CacheItemPolicy System.Runtime.Caching.ChangeMonitor System.Runtime.Caching.FileChangeMonitor System.Runtime.Caching.HostFileChangeMonitor System.Runtime.Caching.MemoryCache System.Runtime.Caching.ObjectCache

System.Runtime.InteropServices.NFloat.Internal by: Microsoft

Exposes additional NFloat APIs for Xamarin/Maui APIs from System.Runtime.InteropServices

System.Security.Cryptography.Pkcs by: Microsoft

Provides support for PKCS and CMS algorithms. Commonly Used Types: System.Security.Cryptography.Pkcs.EnvelopedCms

System.Security.Cryptography.ProtectedData by: Microsoft

Provides access to Windows Data Protection Api. Commonly Used Types: System.Security.Cryptography.DataProtectionScope System.Security.Cryptography.ProtectedData

System.Security.Cryptography.Xml by: Microsoft

Provides classes to support the creation and validation of XML digital signatures. The classes in this namespace implement the World Wide Web Consortium Recommendation, "XML-Signature Syntax and Processing", described at http://www.w3.org/TR/xmldsig-core/. Commonly Used Types: System.Security.Cryptography.Xml.CipherData System.Security.Cryptography.Xml.CipherReference System.Security.Cryptography.Xml.DataObject System.Security.Cryptography.Xml.DataReference System.Security.Cryptography.Xml.DSAKeyValue System.Security.Cryptography.Xml.EncryptedData System.Security.Cryptography.Xml.EncryptedKey System.Security.Cryptography.Xml.EncryptedReference System.Security.Cryptography.Xml.EncryptedType System.Security.Cryptography.Xml.EncryptedXml System.Security.Cryptography.Xml.EncryptionMethod System.Security.Cryptography.Xml.EncryptionProperty System.Security.Cryptography.Xml.EncryptionPropertyCollection System.Security.Cryptography.Xml.KeyInfo System.Security.Cryptography.Xml.KeyInfoClause System.Security.Cryptography.Xml.KeyInfoEncryptedKey System.Security.Cryptography.Xml.KeyInfoName System.Security.Cryptography.Xml.KeyInfoNode System.Security.Cryptography.Xml.KeyInfoRetrievalMethod System.Security.Cryptography.Xml.KeyInfoX509Data System.Security.Cryptography.Xml.KeyReference System.Security.Cryptography.Xml.Reference System.Security.Cryptography.Xml.ReferenceList System.Security.Cryptography.Xml.RSAKeyValue System.Security.Cryptography.Xml.Signature System.Security.Cryptography.Xml.SignedInfo System.Security.Cryptography.Xml.SignedXml System.Security.Cryptography.Xml.Transform System.Security.Cryptography.Xml.TransformChain System.Security.Cryptography.Xml.XmlDecryptionTransform System.Security.Cryptography.Xml.XmlDsigBase64Transform System.Security.Cryptography.Xml.XmlDsigC14NTransform System.Security.Cryptography.Xml.XmlDsigC14NWithCommentsTransform System.Security.Cryptography.Xml.XmlDsigEnvelopedSignatureTransform System.Security.Cryptography.Xml.XmlDsigExcC14NTransform System.Security.Cryptography.Xml.XmlDsigExcC14NWithCommentsTransform System.Security.Cryptography.Xml.XmlDsigXPathTransform System.Security.Cryptography.Xml.XmlDsigXsltTransform System.Security.Cryptography.Xml.XmlLicenseTransform

System.Security.Permissions by: Microsoft

Provides types supporting Code Access Security (CAS).

System.ServiceModel.Syndication by: Microsoft

Provides classes related to service model syndication.