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Code Issues Releases Wiki Activity

remove unused bytes16 conversions

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This commit is contained in:
Thomas Waldmann 2017-07-26 04:34:02 +02:00
parent 63ebfc140b
commit dc4abffbc0
3 changed files with 2 additions and 21 deletions
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13
src/borg/crypto/low_level.pyx
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@ -134,25 +134,12 @@ import struct
_int = struct.Struct('>I')
_long = struct.Struct('>Q')
_2long = struct.Struct('>QQ')
bytes_to_int = lambda x, offset=0: _int.unpack_from(x, offset)[0]
bytes_to_long = lambda x, offset=0: _long.unpack_from(x, offset)[0]
long_to_bytes = lambda x: _long.pack(x)
def bytes16_to_int(b, offset=0):
h, l = _2long.unpack_from(b, offset)
return (h << 64) + l
def int_to_bytes16(i):
max_uint64 = 0xffffffffffffffff
l = i & max_uint64
h = (i >> 64) & max_uint64
return _2long.pack(h, l)
def num_cipher_blocks(length, blocksize=16):
"""Return the number of cipher blocks required to encrypt/decrypt <length> bytes of data.

2
src/borg/selftest.py
View file

@ -30,7 +30,7 @@
ChunkerTestCase,
]
SELFTEST_COUNT = 38
SELFTEST_COUNT = 37
class SelfTestResult(TestResult):

8
src/borg/testsuite/crypto.py
View file

@ -2,7 +2,7 @@
from ..crypto.low_level import AES256_CTR_HMAC_SHA256, AES256_GCM, AES256_OCB, CHACHA20_POLY1305, UNENCRYPTED, \
IntegrityError, blake2b_256, hmac_sha256, openssl10
from ..crypto.low_level import bytes_to_long, bytes_to_int, long_to_bytes, bytes16_to_int, int_to_bytes16
from ..crypto.low_level import bytes_to_long, bytes_to_int, long_to_bytes
from ..crypto.low_level import hkdf_hmac_sha512
from . import BaseTestCase
@ -20,12 +20,6 @@ def test_bytes_to_long(self):
self.assert_equal(bytes_to_long(b'\0\0\0\0\0\0\0\1'), 1)
self.assert_equal(long_to_bytes(1), b'\0\0\0\0\0\0\0\1')
def test_bytes16_to_int(self):
self.assert_equal(bytes16_to_int(b'\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1'), 1)
self.assert_equal(int_to_bytes16(1), b'\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1')
self.assert_equal(bytes16_to_int(b'\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0'), 2 ** 64)
self.assert_equal(int_to_bytes16(2 ** 64), b'\0\0\0\0\0\0\0\1\0\0\0\0\0\0\0\0')
def test_UNENCRYPTED(self):
iv = b'' # any IV is ok, it just must be set and not None
data = b'data'