a317fb03c2
When crypto_newsession() is given a request for an unsupported capability, raise a more specific error than EINVAL. This allows cryptotest.py to skip some HMAC tests that a driver does not support. Reviewed by: jhb, rlibby Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D12451
315 lines
9.3 KiB
Python
315 lines
9.3 KiB
Python
#!/usr/bin/env python
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#
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# Copyright (c) 2014 The FreeBSD Foundation
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# All rights reserved.
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#
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# This software was developed by John-Mark Gurney under
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# the sponsorship from the FreeBSD Foundation.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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from __future__ import print_function
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import errno
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import cryptodev
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import itertools
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import os
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import struct
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import unittest
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from cryptodev import *
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from glob import iglob
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katdir = '/usr/local/share/nist-kat'
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def katg(base, glob):
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assert os.path.exists(os.path.join(katdir, base)), "Please 'pkg install nist-kat'"
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return iglob(os.path.join(katdir, base, glob))
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aesmodules = [ 'cryptosoft0', 'aesni0', 'ccr0' ]
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desmodules = [ 'cryptosoft0', ]
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shamodules = [ 'cryptosoft0', 'ccr0' ]
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def GenTestCase(cname):
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try:
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crid = cryptodev.Crypto.findcrid(cname)
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except IOError:
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return None
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class GendCryptoTestCase(unittest.TestCase):
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###############
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##### AES #####
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###############
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@unittest.skipIf(cname not in aesmodules, 'skipping AES on %s' % (cname))
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def test_xts(self):
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for i in katg('XTSTestVectors/format tweak value input - data unit seq no', '*.rsp'):
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self.runXTS(i, cryptodev.CRYPTO_AES_XTS)
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@unittest.skipIf(cname not in aesmodules, 'skipping AES on %s' % (cname))
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def test_cbc(self):
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for i in katg('KAT_AES', 'CBC[GKV]*.rsp'):
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self.runCBC(i)
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@unittest.skipIf(cname not in aesmodules, 'skipping AES on %s' % (cname))
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def test_gcm(self):
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for i in katg('gcmtestvectors', 'gcmEncrypt*'):
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self.runGCM(i, 'ENCRYPT')
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for i in katg('gcmtestvectors', 'gcmDecrypt*'):
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self.runGCM(i, 'DECRYPT')
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_gmacsizes = { 32: cryptodev.CRYPTO_AES_256_NIST_GMAC,
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24: cryptodev.CRYPTO_AES_192_NIST_GMAC,
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16: cryptodev.CRYPTO_AES_128_NIST_GMAC,
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}
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def runGCM(self, fname, mode):
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curfun = None
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if mode == 'ENCRYPT':
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swapptct = False
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curfun = Crypto.encrypt
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elif mode == 'DECRYPT':
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swapptct = True
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curfun = Crypto.decrypt
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else:
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raise RuntimeError('unknown mode: %r' % repr(mode))
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for bogusmode, lines in cryptodev.KATParser(fname,
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[ 'Count', 'Key', 'IV', 'CT', 'AAD', 'Tag', 'PT', ]):
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for data in lines:
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curcnt = int(data['Count'])
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cipherkey = data['Key'].decode('hex')
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iv = data['IV'].decode('hex')
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aad = data['AAD'].decode('hex')
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tag = data['Tag'].decode('hex')
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if 'FAIL' not in data:
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pt = data['PT'].decode('hex')
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ct = data['CT'].decode('hex')
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if len(iv) != 12:
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# XXX - isn't supported
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continue
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c = Crypto(cryptodev.CRYPTO_AES_NIST_GCM_16,
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cipherkey,
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mac=self._gmacsizes[len(cipherkey)],
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mackey=cipherkey, crid=crid)
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if mode == 'ENCRYPT':
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rct, rtag = c.encrypt(pt, iv, aad)
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rtag = rtag[:len(tag)]
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data['rct'] = rct.encode('hex')
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data['rtag'] = rtag.encode('hex')
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self.assertEqual(rct, ct, repr(data))
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self.assertEqual(rtag, tag, repr(data))
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else:
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if len(tag) != 16:
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continue
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args = (ct, iv, aad, tag)
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if 'FAIL' in data:
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self.assertRaises(IOError,
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c.decrypt, *args)
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else:
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rpt, rtag = c.decrypt(*args)
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data['rpt'] = rpt.encode('hex')
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data['rtag'] = rtag.encode('hex')
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self.assertEqual(rpt, pt,
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repr(data))
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def runCBC(self, fname):
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curfun = None
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for mode, lines in cryptodev.KATParser(fname,
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[ 'COUNT', 'KEY', 'IV', 'PLAINTEXT', 'CIPHERTEXT', ]):
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if mode == 'ENCRYPT':
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swapptct = False
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curfun = Crypto.encrypt
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elif mode == 'DECRYPT':
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swapptct = True
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curfun = Crypto.decrypt
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else:
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raise RuntimeError('unknown mode: %r' % repr(mode))
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for data in lines:
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curcnt = int(data['COUNT'])
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cipherkey = data['KEY'].decode('hex')
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iv = data['IV'].decode('hex')
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pt = data['PLAINTEXT'].decode('hex')
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ct = data['CIPHERTEXT'].decode('hex')
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if swapptct:
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pt, ct = ct, pt
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# run the fun
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c = Crypto(cryptodev.CRYPTO_AES_CBC, cipherkey, crid=crid)
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r = curfun(c, pt, iv)
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self.assertEqual(r, ct)
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def runXTS(self, fname, meth):
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curfun = None
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for mode, lines in cryptodev.KATParser(fname,
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[ 'COUNT', 'DataUnitLen', 'Key', 'DataUnitSeqNumber', 'PT',
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'CT' ]):
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if mode == 'ENCRYPT':
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swapptct = False
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curfun = Crypto.encrypt
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elif mode == 'DECRYPT':
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swapptct = True
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curfun = Crypto.decrypt
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else:
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raise RuntimeError('unknown mode: %r' % repr(mode))
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for data in lines:
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curcnt = int(data['COUNT'])
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nbits = int(data['DataUnitLen'])
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cipherkey = data['Key'].decode('hex')
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iv = struct.pack('QQ', int(data['DataUnitSeqNumber']), 0)
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pt = data['PT'].decode('hex')
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ct = data['CT'].decode('hex')
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if nbits % 128 != 0:
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# XXX - mark as skipped
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continue
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if swapptct:
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pt, ct = ct, pt
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# run the fun
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c = Crypto(meth, cipherkey, crid=crid)
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r = curfun(c, pt, iv)
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self.assertEqual(r, ct)
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###############
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##### DES #####
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###############
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@unittest.skipIf(cname not in desmodules, 'skipping DES on %s' % (cname))
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def test_tdes(self):
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for i in katg('KAT_TDES', 'TCBC[a-z]*.rsp'):
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self.runTDES(i)
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def runTDES(self, fname):
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curfun = None
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for mode, lines in cryptodev.KATParser(fname,
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[ 'COUNT', 'KEYs', 'IV', 'PLAINTEXT', 'CIPHERTEXT', ]):
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if mode == 'ENCRYPT':
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swapptct = False
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curfun = Crypto.encrypt
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elif mode == 'DECRYPT':
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swapptct = True
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curfun = Crypto.decrypt
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else:
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raise RuntimeError('unknown mode: %r' % repr(mode))
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for data in lines:
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curcnt = int(data['COUNT'])
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key = data['KEYs'] * 3
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cipherkey = key.decode('hex')
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iv = data['IV'].decode('hex')
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pt = data['PLAINTEXT'].decode('hex')
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ct = data['CIPHERTEXT'].decode('hex')
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if swapptct:
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pt, ct = ct, pt
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# run the fun
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c = Crypto(cryptodev.CRYPTO_3DES_CBC, cipherkey, crid=crid)
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r = curfun(c, pt, iv)
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self.assertEqual(r, ct)
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###############
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##### SHA #####
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###############
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@unittest.skipIf(cname not in shamodules, 'skipping SHA on %s' % str(cname))
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def test_sha(self):
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# SHA not available in software
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pass
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#for i in iglob('SHA1*'):
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# self.runSHA(i)
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@unittest.skipIf(cname not in shamodules, 'skipping SHA on %s' % str(cname))
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def test_sha1hmac(self):
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for i in katg('hmactestvectors', 'HMAC.rsp'):
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self.runSHA1HMAC(i)
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def runSHA1HMAC(self, fname):
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for hashlength, lines in cryptodev.KATParser(fname,
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[ 'Count', 'Klen', 'Tlen', 'Key', 'Msg', 'Mac' ]):
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# E.g., hashlength will be "L=20" (bytes)
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hashlen = int(hashlength.split("=")[1])
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blocksize = None
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if hashlen == 20:
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alg = cryptodev.CRYPTO_SHA1_HMAC
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blocksize = 64
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elif hashlen == 28:
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# Cryptodev doesn't support SHA-224
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# Slurp remaining input in section
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for data in lines:
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continue
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continue
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elif hashlen == 32:
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alg = cryptodev.CRYPTO_SHA2_256_HMAC
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blocksize = 64
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elif hashlen == 48:
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alg = cryptodev.CRYPTO_SHA2_384_HMAC
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blocksize = 128
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elif hashlen == 64:
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alg = cryptodev.CRYPTO_SHA2_512_HMAC
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blocksize = 128
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else:
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# Skip unsupported hashes
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# Slurp remaining input in section
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for data in lines:
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continue
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continue
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for data in lines:
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key = data['Key'].decode('hex')
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msg = data['Msg'].decode('hex')
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mac = data['Mac'].decode('hex')
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tlen = int(data['Tlen'])
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if len(key) > blocksize:
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continue
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try:
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c = Crypto(mac=alg, mackey=key,
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crid=crid)
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except EnvironmentError, e:
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# Can't test hashes the driver does not support.
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if e.errno != errno.EOPNOTSUPP:
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raise
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continue
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_, r = c.encrypt(msg, iv="")
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# A limitation in cryptodev.py means we
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# can only store MACs up to 16 bytes.
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# That's good enough to validate the
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# correct behavior, more or less.
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maclen = min(tlen, 16)
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self.assertEqual(r[:maclen], mac[:maclen], "Actual: " + \
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repr(r[:maclen].encode("hex")) + " Expected: " + repr(data))
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return GendCryptoTestCase
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cryptosoft = GenTestCase('cryptosoft0')
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aesni = GenTestCase('aesni0')
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ccr = GenTestCase('ccr0')
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if __name__ == '__main__':
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unittest.main()
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