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This code snippet is able to generate a scram salted password 'hash' in the format and with the necessary information mongooseim expects when using http auth and scram. See http://stackoverflow.com/questions/35652435/mongooseim-ejabberd-http-auth-using-scram and http://mongooseim.readthedocs.org/en/1.6.1/advanced-configuration/HTTP-authenticatio…
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# https://tools.ietf.org/html/rfc5802 | |
import base64 | |
import hashlib | |
import hmac | |
import sys | |
from passlib.hash import scram | |
# password_to_scram(Password, IterationCount) -> | |
# Salt = crypto:rand_bytes(?SALT_LENGTH), | |
# SaltedPassword = salted_password(Password, Salt, IterationCount), | |
# StoredKey = stored_key(scram:client_key(SaltedPassword)), | |
# ServerKey = server_key(SaltedPassword), | |
# #scram{storedkey = base64:encode(StoredKey), | |
# serverkey = base64:encode(ServerKey), | |
# salt = base64:encode(Salt), | |
# iterationcount = IterationCount}. | |
def main(): | |
rounds = 4096 | |
hash = scram.encrypt(sys.argv[1], rounds=rounds, salt_size=16) | |
hash = scram.encrypt('1234', rounds=rounds, salt='salt') | |
salt, iterations, salted_password = scram.extract_digest_info(hash, "sha-1") | |
# server_key(SaltedPassword) -> | |
# crypto:hmac(sha, SaltedPassword, <<"Server Key">>). | |
server_key = hmac.new(key=salted_password, msg='Server Key', digestmod=hashlib.sha1).digest() | |
# client_key(SaltedPassword) -> | |
# crypto:hmac(sha, SaltedPassword, <<"Client Key">>). | |
client_key = hmac.new(key=salted_password, msg='Client Key', digestmod=hashlib.sha1).digest() | |
# StoredKey = stored_key(scram:client_key(SaltedPassword)), | |
stored_key = hashlib.sha1(client_key).digest() | |
result = '==SCRAM==,%s,%s,%s,%d' % \ | |
(base64.b64encode(stored_key), base64.b64encode(server_key), base64.b64encode(salt), rounds) | |
print result | |
if __name__ == '__main__': | |
main() |
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