diff options
Diffstat (limited to 'pym/portage/checksum.py')
| -rw-r--r-- | pym/portage/checksum.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/pym/portage/checksum.py b/pym/portage/checksum.py index 6bace4d6a..a4a744ba9 100644 --- a/pym/portage/checksum.py +++ b/pym/portage/checksum.py @@ -80,6 +80,25 @@ sha1hash = _generate_hash_function("SHA1", _new_sha1, origin="internal") from portage.util.whirlpool import new as _new_whirlpool whirlpoolhash = _generate_hash_function("WHIRLPOOL", _new_whirlpool, origin="bundled") +# Try to use mhash if available +# mhash causes GIL presently, so it gets less priority than hashlib and +# pycrypto. However, it might be the only accelerated implementation of +# WHIRLPOOL available. +try: + import mhash, functools + md5hash = _generate_hash_function("MD5", functools.partial(mhash.MHASH, mhash.MHASH_MD5), origin="mhash") + sha1hash = _generate_hash_function("SHA1", functools.partial(mhash.MHASH, mhash.MHASH_SHA1), origin="mhash") + sha256hash = _generate_hash_function("SHA256", functools.partial(mhash.MHASH, mhash.MHASH_SHA256), origin="mhash") + sha512hash = _generate_hash_function("SHA512", functools.partial(mhash.MHASH, mhash.MHASH_SHA512), origin="mhash") + for local_name, hash_name in (("rmd160", "ripemd160"), ("whirlpool", "whirlpool")): + if hasattr(mhash, 'MHASH_%s' % local_name.upper()): + globals()['%shash' % local_name] = \ + _generate_hash_function(local_name.upper(), \ + functools.partial(mhash.MHASH, getattr(mhash, 'MHASH_%s' % hash_name.upper())), \ + origin='mhash') +except ImportError: + pass + # Use pycrypto when available, prefer it over the internal fallbacks try: from Crypto.Hash import SHA256, RIPEMD |