def _load_backend_mixin(mixin_cls, name, dryrun):
from passlib.utils import as_bool
if not as_bool(os.environ.get("PASSLIB_BUILTIN_BCRYPT")):
log.debug("bcrypt 'builtin' backend not enabled via $PASSLIB_BUILTIN_BCRYPT")
return False
global _builtin_bcrypt
from passlib.crypto._blowfish import raw_bcrypt as _builtin_bcrypt
return mixin_cls._finalize_backend_mixin(name, dryrun)
def _load_backend_mixin(mixin_cls, name, dryrun):
from passlib.utils import as_bool
if not as_bool(os.environ.get("PASSLIB_BUILTIN_BCRYPT")):
log.debug("bcrypt 'builtin' backend not enabled via $PASSLIB_BUILTIN_BCRYPT")
return False
global _builtin_bcrypt
from passlib.crypto._blowfish import raw_bcrypt as _builtin_bcrypt
return mixin_cls._finalize_backend_mixin(name, dryrun)
'shake_128',
'shake_256',
}
def _set_mock_fips_mode(enable=True):
"""
UT helper which monkeypatches lookup_hash() internals to replicate FIPS mode.
"""
global mock_fips_mode
mock_fips_mode = enable
lookup_hash.clear_cache()
# helper for UTs
if as_bool(os.environ.get("PASSLIB_MOCK_FIPS_MODE")):
_set_mock_fips_mode()
#=============================================================================
# hmac utils
#=============================================================================
#: translation tables used by compile_hmac()
_TRANS_5C = join_byte_values((x ^ 0x5C) for x in irange(256))
_TRANS_36 = join_byte_values((x ^ 0x36) for x in irange(256))
def compile_hmac(digest, key, multipart=False):
"""
This function returns an efficient HMAC function, hardcoded with a specific digest & key.
It can be used via ``hmac = compile_hmac(digest, key)``.