* hashes. This is used exclusively by the {@code jcifs.http.NtlmSsp}
     * class which is in turn used by NTLM HTTP authentication functionality.
     *
     * @param domain the authentication domain
     * @param username the username to authenticate with
     * @param challenge the server challenge bytes
     * @param ansiHash the ANSI password hash

                available, instead of erroring out, the dependency result will be
                `None`.

                This is useful when you want to have optional authentication.

                It is also useful when you want to have authentication that can be
                provided in one of multiple optional ways (for example, in a query
                parameter or in an HTTP Bearer token).
                """

        // Authentication
        final Hc5Authentication[] siteCredentialList = getAuthenticationArray();
        final List<Pair<Hc5FormScheme, Credentials>> formSchemeList = new ArrayList<>();
        for (final Hc5Authentication authentication : siteCredentialList) {
            final AuthScheme authScheme = authentication.getAuthScheme();
            if (authScheme instanceof Hc5FormScheme) {

hmac-sha1-96
```

### Certificate-based authentication

`--sftp=trusted-user-ca-key=...` specifies a file containing public key of certificate authority that is trusted
to sign user certificates for authentication.

Implementation is identical with "TrustedUserCAKeys" setting in OpenSSH server with exception that only one CA
key can be defined.

::: fastapi.security.APIKeyHeader

::: fastapi.security.APIKeyQuery

## HTTP Authentication Schemes

::: fastapi.security.HTTPBasic

::: fastapi.security.HTTPBearer

::: fastapi.security.HTTPDigest

## HTTP Credentials

::: fastapi.security.HTTPAuthorizationCredentials

::: fastapi.security.HTTPBasicCredentials

## OAuth2 Authentication

::: fastapi.security.OAuth2

import jcifs.smb1.util.Encdec;
import jcifs.smb1.util.Hexdump;
import jcifs.smb1.util.LogStream;

/**
For initiating NTLM authentication (including NTLMv2). If you want to add NTLMv2 authentication support to something this is what you want to use. See the code for details. Note that JCIFS does not implement the acceptor side of NTLM authentication.
 */

public class NtlmContext {

    NtlmPasswordAuthentication auth;
    int ntlmsspFlags;

     */
    protected CacheEntry referrals = null;

    /**
     * Gets the map of trusted domains for DFS resolution
     * @param auth the authentication credentials
     * @return a map of trusted domain names to domain controllers
     * @throws SmbAuthException if authentication fails
     */
    public HashMap getTrustedDomains(final NtlmPasswordAuthentication auth) throws SmbAuthException {
        if (DISABLED || auth.domain == "?") {

    }

    /**
     * Returns the authentication target.
     *
     * @return A <code>String</code> containing the authentication target.
     */
    public String getTarget() {
        return this.target;
    }

    /**
     * Sets the authentication target.
     *
     * @param target
     *            The authentication target.
     */

import jcifs.util.Crypto;
import jcifs.util.Hexdump;

/**
 * For initiating NTLM authentication (including NTLMv2). If you want to add NTLMv2 authentication support to something
 * this is what you want to use. See the code for details. Note that JCIFS does not implement the acceptor side of NTLM
 * authentication.
 *
 */
public class NtlmContext implements SSPContext {

    }

    /**
     * Gets the array of supported authentication mechanisms
     * @return the mechanisms array
     */
    public ASN1ObjectIdentifier[] getMechanisms() {
        return this.mechanisms;
    }

    /**
     * Sets the array of supported authentication mechanisms
     * @param mechanisms the mechanisms to set
     */