#### [Abblix\.Oidc\.Server](https://www.abblix.com/en/docs/api/abblix-oidc-server 'index')

## Abblix\.Oidc\.Server\.Features\.DeviceAuthorization Namespace

| Classes | |
| :--- | :--- |
| [DeviceAuthorizationRequest](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.DeviceAuthorizationRequest 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.DeviceAuthorizationRequest') | Represents a stored device authorization request as defined in RFC 8628\. This record is used to persist the state of a device authorization flow between the initial request and when the user completes authentication\. |
| [DeviceAuthorizationStorage](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.DeviceAuthorizationStorage 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.DeviceAuthorizationStorage') | Implements storage for device authorization requests as defined in RFC 8628\. Stores requests by device\_code \(for client polling\) with a secondary index by user\_code \(for user verification\)\. Uses atomic distributed cache operations to prevent race conditions in token issuance\. |
| [DeviceCodeGenerator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.DeviceCodeGenerator 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.DeviceCodeGenerator') | Generates high\-entropy device codes for the Device Authorization Grant \(RFC 8628\)\. The device code is used by clients to poll the token endpoint\. |
| [InvalidUserCode](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.InvalidUserCode 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.InvalidUserCode') | Indicates that the user code was not found or has expired\. |
| [UserCodeAlreadyUsed](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeAlreadyUsed 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeAlreadyUsed') | Indicates that the user code has already been used \(approved or denied\)\. |
| [UserCodeGenerator](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeGenerator 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeGenerator') | Generates user codes for the Device Authorization Grant \(RFC 8628\)\. The alphabet used for code generation is configurable to support numeric, alphabetic, or alphanumeric codes\. |
| [UserCodeNormalizer](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeNormalizer 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeNormalizer') | Canonicalizes user\-entered user codes for the Device Authorization Grant \(RFC 8628\) following the input\-processing guidance in Section 6\.1: punctuation added for readability \(dashes, spaces\) and any other characters outside the configured alphabet are dropped, and case is folded when the alphabet is single\-case so that a user typing the equivalent lowercase \(or uppercase\) form is not rejected\. |
| [UserCodeRateLimiter](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeRateLimiter 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeRateLimiter') | Implements rate limiting for user code verification attempts to prevent brute force attacks\. Uses exponential backoff and per\-IP rate limiting as recommended by RFC 8628 Section 5\.2\. |
| [UserCodeVerificationResult](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeVerificationResult 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeVerificationResult') | Represents the result of a user code verification attempt\. This is a discriminated union with three concrete implementations\. |
| [UserCodeVerificationService](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.UserCodeVerificationService 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.UserCodeVerificationService') | Implements the user code verification service for the Device Authorization Grant flow \(RFC 8628\)\. This service handles the verification, approval, and denial of device authorization requests with built\-in brute force protection\. |
| [ValidUserCode](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.ValidUserCode 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.ValidUserCode') | Indicates that the user code was successfully verified and the request is pending authorization\. |

| Enums | |
| :--- | :--- |
| [DeviceAuthorizationStatus](https://www.abblix.com/en/docs/api/abblix-oidc-server/Abblix.Oidc.Server.Features.DeviceAuthorization.DeviceAuthorizationStatus 'Abblix\.Oidc\.Server\.Features\.DeviceAuthorization\.DeviceAuthorizationStatus') | Represents the various states of a device authorization request as defined in RFC 8628\. This enumeration defines the possible statuses that a device authorization request can have, facilitating the management of the device authorization flow\. |