1: <?php
2:
3: declare(strict_types=1);
4:
5: /**
6: * This file is part of the Nexus MCP SDK package.
7: *
8: * (c) 2026 John Paul E. Balandan, CPA <paulbalandan@gmail.com>
9: *
10: * For the full copyright and license information, please view
11: * the LICENSE file that was distributed with this source code.
12: */
13:
14: namespace Nexus\Mcp\Extension\Auth\Enterprise;
15:
16: /**
17: * The RFC 8693 subject token types an identity assertion is exchanged as.
18: *
19: * @see https://datatracker.ietf.org/doc/html/rfc8693#section-3
20: */
21: enum IdentityAssertionType: string
22: {
23: /**
24: * An OpenID Connect ID token from the client's own sign-on.
25: */
26: case IdToken = 'urn:ietf:params:oauth:token-type:id_token';
27:
28: /**
29: * A refresh token, which a SAML assertion is first exchanged for.
30: */
31: case RefreshToken = 'urn:ietf:params:oauth:token-type:refresh_token';
32: }
33: