<PackageReference Include="Microsoft.IdentityModel.Tokens" Version="8.22.0" />

Microsoft.IdentityModel.Tokens.SecurityToken

public abstract class SecurityToken : ISafeLogSecurityArtifact
Base class for security token.
namespace Microsoft.IdentityModel.Tokens { public abstract class SecurityToken { public abstract string Id { get; } public abstract string Issuer { get; } public abstract SecurityKey SecurityKey { get; } public abstract SecurityKey SigningKey { get; set; } public abstract DateTime ValidFrom { get; } public abstract DateTime ValidTo { get; } public virtual string UnsafeToString(); protected SecurityToken(); } }