<!--
{
  "availability" : [
    "macCatalyst: 13.0.0 -",
    "macOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Security",
  "identifier" : "/documentation/Security/SecAuthenticationType",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "Security"
    ],
    "preciseIdentifier" : "c:@E@SecAuthenticationType"
  },
  "title" : "SecAuthenticationType"
}
-->

# SecAuthenticationType

The authentication type to use for an Internet password.

```
enum SecAuthenticationType
```

## Topics

### Constants

[`SecAuthenticationType.NTLM`](/documentation/Security/SecAuthenticationType/NTLM)

Specifies Windows NT LAN Manager authentication.

[`SecAuthenticationType.MSN`](/documentation/Security/SecAuthenticationType/MSN)

Specifies Microsoft Network default authentication.

[`SecAuthenticationType.DPA`](/documentation/Security/SecAuthenticationType/DPA)

Specifies Distributed Password authentication.

[`SecAuthenticationType.RPA`](/documentation/Security/SecAuthenticationType/RPA)

Specifies Remote Password authentication.

[`SecAuthenticationType.httpBasic`](/documentation/Security/SecAuthenticationType/httpBasic)

Specifies HTTP Basic authentication.

[`SecAuthenticationType.httpDigest`](/documentation/Security/SecAuthenticationType/httpDigest)

Specifies HTTP Digest Access authentication.

[`SecAuthenticationType.htmlForm`](/documentation/Security/SecAuthenticationType/htmlForm)

Specifies HTML form based authentication.

[`SecAuthenticationType.default`](/documentation/Security/SecAuthenticationType/default)

Specifies the default authentication type.

[`SecAuthenticationType.any`](/documentation/Security/SecAuthenticationType/any)

Specifies that any authentication type is acceptable.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)