twisted.cred.

def calcHA1(pszAlg, pszUserName, pszRealm, pszPassword, pszNonce, pszCNonce, preHA1=None):

Compute H(A1) from RFC 2617.

Parameters	pszAlg	The name of the algorithm to use to calculate the digest. Currently supported are md5, md5-sess, and sha.
	pszUserName	The username
	pszRealm	The realm
	pszPassword	The password
	pszNonce	The nonce
	pszCNonce	The cnonce
	preHA1	If available this is a str containing a previously calculated H(A1) as a hex string. If this is given then the values for pszUserName, pszRealm, and pszPassword must be `None` and are ignored.

def calcHA2(algo, pszMethod, pszDigestUri, pszQop, pszHEntity):

Compute H(A2) from RFC 2617.

Parameters	pszAlg	The name of the algorithm to use to calculate the digest. Currently supported are md5, md5-sess, and sha.
	pszMethod	The request method.
	pszDigestUri	The request URI.
	pszQop	The Quality-of-Protection value.
	pszHEntity	The hash of the entity body or `None` if `pszQop` is not `'auth-int'`.
Returns	The hash of the A2 value for the calculation of the response digest.

def calcResponse(HA1, HA2, algo, pszNonce, pszNonceCount, pszCNonce, pszQop):

Compute the digest for the given parameters.

Parameters	HA1	The H(A1) value, as computed by `calcHA1`.
	HA2	The H(A2) value, as computed by `calcHA2`.
	pszNonce	The challenge nonce.
	pszNonceCount	The (client) nonce count value for this response.
	pszCNonce	The client nonce.
	pszQop	The Quality-of-Protection value.

Function	calcHA1	Compute H(A1) from RFC 2617.
Function	calcHA2	Compute H(A2) from RFC 2617.
Function	calcResponse	Compute the digest for the given parameters.

twisted.cred._digest module documentation