twisted.conch.checkers.SSHPublicKeyDatabase

def requestAvatarId(self, credentials):

Validate credentials and produce an avatar ID.

Parameters	credentials	something which implements one of the interfaces in `credentialInterfaces`.
Returns	a `Deferred` which will fire with a `bytes` that identifies an avatar, an empty tuple to specify an authenticated anonymous user (provided as `twisted.cred.checkers.ANONYMOUS`) or fail with `UnauthorizedLogin`. Alternatively, return the result itself.
See Also	`twisted.cred.credentials`

def _cbRequestAvatarId(self, validKey, credentials):

Check whether the credentials themselves are valid, now that we know if the key matches the user.

Parameters	validKey	A boolean indicating whether or not the public key matches a key in the user's authorized_keys file.
	credentials	The credentials offered by the user. (type: `ISSHPrivateKey` provider)
Returns	The user's username, if authentication was successful.
Raises	UnauthorizedLogin	(as a failure) if the key does not match the user in `credentials`. Also raised if the user provides an invalid signature.
	ValidPublicKey	(as a failure) if the key matches the user but the credentials do not include a signature. See `error.ValidPublicKey` for more information.

def getAuthorizedKeysFiles(self, credentials):

Return a list of FilePath instances for authorized_keys files which might contain information about authorized keys for the given credentials.

On OpenSSH servers, the default location of the file containing the list of authorized public keys is $HOME/.ssh/authorized_keys.

$HOME/.ssh/authorized_keys2 is also returned, though it has been deprecated by OpenSSH since 2001.

Returns A list of FilePath instances to files with the authorized keys.

def checkKey(self, credentials):

Retrieve files containing authorized keys and check against user credentials.

def _ebRequestAvatarId(self, f):

Undocumented

Method	requestAvatarId	Validate credentials and produce an avatar ID.
Method	getAuthorizedKeysFiles	Return a list of `FilePath` instances for authorized_keys files which might contain information about authorized keys for the given credentials.
Method	checkKey	Retrieve files containing authorized keys and check against user credentials.
Method	_cbRequestAvatarId	Check whether the credentials themselves are valid, now that we know if the key matches the user.
Method	_ebRequestAvatarId	Undocumented

twisted.conch.checkers.SSHPublicKeyDatabase class documentation