python3-passlib 1.7.1-1 / usr / lib / python3 / dist-packages / passlib / tests / test_handlers_scrypt.py

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"""passlib.tests.test_handlers - tests for passlib hash algorithms"""
#=============================================================================
# imports
#=============================================================================
# core
import logging; log = logging.getLogger(__name__)
import warnings
warnings.filterwarnings("ignore", ".*using builtin scrypt backend.*")
# site
# pkg
from passlib import hash
from passlib.tests.utils import HandlerCase, TEST_MODE
from passlib.tests.test_handlers import UPASS_TABLE, PASS_TABLE_UTF8
# module

#=============================================================================
# scrypt hash
#=============================================================================
class _scrypt_test(HandlerCase):
    handler = hash.scrypt

    known_correct_hashes = [
        #
        # excepted from test vectors from scrypt whitepaper
        # (http://www.tarsnap.com/scrypt/scrypt.pdf, appendix b),
        # and encoded using passlib's custom format
        #

        # salt=b""
        ("", "$scrypt$ln=4,r=1,p=1$$d9ZXYjhleyA7GcpCwYoEl/FrSETjB0ro39/6P+3iFEI"),

        # salt=b"NaCl"
        ("password", "$scrypt$ln=10,r=8,p=16$TmFDbA$/bq+HJ00cgB4VucZDQHp/nxq18vII3gw53N2Y0s3MWI"),

        #
        # custom
        #

        # simple test
        ("test", '$scrypt$ln=8,r=8,p=1$wlhLyXmP8b53bm1NKYVQqg$mTpvG8lzuuDk+DWz8HZIB6Vum6erDuUm0As5yU+VxWA'),

        # different block value
        ("password", '$scrypt$ln=8,r=2,p=1$dO6d0xoDoLT2PofQGoNQag$g/Wf2A0vhHhaJM+addK61QPBthSmYB6uVTtQzh8CM3o'),

        # different rounds
        (UPASS_TABLE, '$scrypt$ln=7,r=8,p=1$jjGmtDamdA4BQAjBeA9BSA$OiWRHhQtpDx7M/793x6UXK14AD512jg/qNm/hkWZG4M'),

        # alt encoding
        (PASS_TABLE_UTF8, '$scrypt$ln=7,r=8,p=1$jjGmtDamdA4BQAjBeA9BSA$OiWRHhQtpDx7M/793x6UXK14AD512jg/qNm/hkWZG4M'),

        # diff block & parallel counts as well
        ("nacl", '$scrypt$ln=1,r=4,p=2$yhnD+J+Tci4lZCwFgHCuVQ$fAsEWmxSHuC0cHKMwKVFPzrQukgvK09Sj+NueTSxKds')
    ]

    if TEST_MODE("full"):
        # add some hashes with larger rounds value.
        known_correct_hashes.extend([
            #
            # from scrypt whitepaper
            #

            # salt=b"SodiumChloride"
            ("pleaseletmein", "$scrypt$ln=14,r=8,p=1$U29kaXVtQ2hsb3JpZGU"
                              "$cCO9yzr9c0hGHAbNgf046/2o+7qQT44+qbVD9lRdofI"),

            #
            # openwall format (https://gitlab.com/jas/scrypt-unix-crypt/blob/master/unix-scrypt.txt)
            #
            ("pleaseletmein",
             "$7$C6..../....SodiumChloride$kBGj9fHznVYFQMEn/qDCfrDevf9YDtcDdKvEqHJLV8D"),

        ])

    known_malformed_hashes = [
        # missing 'p' value
        '$scrypt$ln=10,r=1$wvif8/4fg1Cq9V7L2dv73w$bJcLia1lyfQ1X2x0xflehwVXPzWIUQWWdnlGwfVzBeQ',

        # rounds too low
        '$scrypt$ln=0,r=1,p=1$wvif8/4fg1Cq9V7L2dv73w$bJcLia1lyfQ1X2x0xflehwVXPzWIUQWWdnlGwfVzBeQ',

        # invalid block size
        '$scrypt$ln=10,r=A,p=1$wvif8/4fg1Cq9V7L2dv73w$bJcLia1lyfQ1X2x0xflehwVXPzWIUQWWdnlGwfVzBeQ',

        # r*p too large
        '$scrypt$ln=10,r=134217728,p=8$wvif8/4fg1Cq9V7L2dv73w$bJcLia1lyfQ1X2x0xflehwVXPzWIUQWWdnlGwfVzBeQ',
    ]

    def setUpWarnings(self):
        super(_scrypt_test, self).setUpWarnings()
        warnings.filterwarnings("ignore", ".*using builtin scrypt backend.*")

    def populate_settings(self, kwds):
        # builtin is still just way too slow.
        if self.backend == "builtin":
            kwds.setdefault("rounds", 6)
        super(_scrypt_test, self).populate_settings(kwds)

    class FuzzHashGenerator(HandlerCase.FuzzHashGenerator):

        def random_rounds(self):
            # decrease default rounds for fuzz testing to speed up volume.
            return self.randintgauss(4, 10, 6, 1)

# create test cases for specific backends
scrypt_scrypt_test = _scrypt_test.create_backend_case("scrypt")
scrypt_builtin_test = _scrypt_test.create_backend_case("builtin")

#=============================================================================
# eof
#=============================================================================

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