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File: //lib/python3/dist-packages/twisted/cred/__pycache__/credentials.cpython-310.pyc
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This module defines L{ICredentials}, an interface for objects that represent
authentication credentials to provide, and also includes a number of useful
implementations of that interface.
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    I check credentials.

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    This credential is used when a CredentialChecker has access to the hash
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        @param digestHash: The hashed username:realm:password to check against.

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    I encapsulate a username and a hashed password.

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    password-equivalent hashes) form so that they can be hashed in a manner
    appropriate for the particular credentials class.

    @type username: L{bytes}
    @ivar username: The username associated with these credentials.
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        Validate these credentials against the correct password.

        @type password: L{bytes}
        @param password: The correct, plaintext password against which to
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        @rtype: C{bool} or L{Deferred}
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    it need only transform the stored password in a similar way before
    performing the comparison.

    @type username: L{bytes}
    @ivar username: The username associated with these credentials.

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    I am an explicitly anonymous request for access.

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        Verify that the credentials represented by this object agree with the
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        Verify that the credentials represented by this object agree with the
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        @param digestHash: A precomputed H(A1) value based on the username,
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    Support for RFC2617 HTTP Digest Authentication

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    @ivar privateKey: A random string used for generating the secure opaque.

    @type algorithm: L{bytes}
    @param algorithm: Case insensitive string specifying the hash algorithm to
        use.  Must be either C{'md5'} or C{'sha'}.  C{'md5-sess'} is B{not}
        supported.

    @type authenticationRealm: L{bytes}
    @param authenticationRealm: case sensitive string that specifies the realm
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        Generate the challenge for use in the WWW-Authenticate header.

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        Given the opaque and nonce from the request, as well as the client IP
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        And that it's not too old.

        @param opaque: The opaque value from the Digest response
        @param nonce: The nonce value from the Digest response
        @param clientip: The remote IP address of the client making the request
            or L{None} if the request was submitted over a channel where this
            does not make sense.

        @return: C{True} if the opaque was successfully verified.

        @raise error.LoginFailed: if C{opaque} could not be parsed or
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        Decode the given response and attempt to generate a
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        @type response: L{bytes}
        @param response: A string of comma separated key=value pairs

        @type method: L{bytes}
        @param method: The action requested to which this response is addressed
            (GET, POST, INVITE, OPTIONS, etc).

        @type host: L{bytes}
        @param host: The address the request was sent from.

        @raise error.LoginFailed: If the response does not contain a username,
            a nonce, an opaque, or if the opaque is invalid.

        @return: L{DigestedCredentials}
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    An encapsulation of some CramMD5 hashed credentials.

    @ivar challenge: The challenge to be sent to the client.
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    @ivar response: The hashed response from the client.
    @type response: L{bytes}

    @ivar username: The username from the response from the client.
    @type username: L{bytes} or L{None} if not yet provided.
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    L{ISSHPrivateKey} credentials encapsulate an SSH public key to be checked
    against a user's private key.

    @ivar username: The username associated with these credentials.
    @type username: L{bytes}

    @ivar algName: The algorithm name for the blob.
    @type algName: L{bytes}

    @ivar blob: The public key blob as sent by the client.
    @type blob: L{bytes}

    @ivar sigData: The data the signature was made from.
    @type sigData: L{bytes}

    @ivar signature: The signed data.  This is checked to verify that the user
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