failure on OSX Lion python27 from ports

[gwenhastings]

I am NOT a python programmer but I did install libsodium python 2.7 virtualenv py-dev and libffi from ports and keep getting the following

pbp Traceback (most recent call last): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pbp", line 9, in load_entry_point('pbp==0.2', 'console_scripts', 'pbp')() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 352, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2307, in load_entry_point return ep.load() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2021, in load entry = import(self.module_name, globals(),globals(), ['name']) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/main.py", line 5, in import publickey File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/publickey.py", line 2, in import pysodium as nacl, scrypt # external dependencies File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/init.py", line 30, in from pysodium import sodium File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/sodium.py", line 130, in lib = ffi.verify("#include <sodium.h>", libraries=["sodium"]) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cffi/api.py", line 339, in verify lib = self.verifier.load_library() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cffi/verifier.py", line 73, in load_library self._write_source() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/cffi/verifier.py", line 125, in _write_source file = open(self.sourcefilename, 'w') IOError: [Errno 2] No such file or directory: '/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/pycache/_cffi__x6f20fc6x6947e85f.c'

tried uninstalling and installing pbp via pip a couple of times(as well as libffi (via ports)) pyffi on the OSX 10.7 platform would seem to require python 3(I am stuck at python 2.7 for GNURADIO concerns)..

HELP? Suggestions?(and this is why I prefer delivery of security/crypto utils in c as the implementation vehicle tends to be more widely supported. python,ruby,java,what have you tends to be a bit more fragile with regards to the run time environment due to the additional layers of software infrastructure(and greatly increated local attack surface(host based attacks)) while warding off other classes of attacks... depends on where you want to draw your line in the sand.. and given I am very comfortable with c and the object code/linkages/machine code produced and NOT so comfy with python(as evidenced :)

ps will attempt openbsd amd64 5.1 next

[gwenhastings]

made the directory /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/pycache/ then chmod a+rwxt /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/pycache/

problem solved

[stef]

howdy, i just released a new version of pysodium, that moved away from cffi to ctypes, so this issue should never come up again. could you try with a fresh install of pysodium/pbp to confirm this? you can keep your key/config directories of course. see https://github.com/stef/pbp/issues/6

[gwenhastings]

oops after ssudo pip uninstall pysodium/pbp and then a suso pip reinstall MacBook-Pro:~ gwen$ sudo pip uninstall pysodium Uninstalling pysodium: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium-0.5.9.1-py2.7.egg-info /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/init.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/init.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/sodium.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/sodium.pyc Proceed (y/n)? y Successfully uninstalled pysodium MacBook-Pro:~ gwen$ pbp Traceback (most recent call last): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pbp", line 5, in from pkg_resources import load_entry_point File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2697, in working_set.require(requires) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 669, in require needed = self.resolve(parse_requirements(requirements)) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 572, in resolve raise DistributionNotFound(req) pkg_resources.DistributionNotFound: pysodium MacBook-Pro:~ gwen$ sudo pip uninstall pbp Uninstalling pbp: /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pbp /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp-0.2-py2.7.egg-info /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/init.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/init.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/chaining.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/chaining.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/main.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/main.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/pbp.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/pbp.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/publickey.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/publickey.pyc /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/utils.py /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/utils.pyc Proceed (y/n)? y Successfully uninstalled pbp MacBook-Pro:~ gwen$ sudo pip install pbp Downloading/unpacking pbp Downloading pbp-0.2.1.tar.gz Running setup.py (path:/private/tmp/pip_build_root/pbp/setup.py) egg_info for package pbp

Requirement already satisfied (use --upgrade to upgrade): cffi in /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from pbp) Requirement already satisfied (use --upgrade to upgrade): scrypt in /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from pbp) Downloading/unpacking pysodium (from pbp) Downloading pysodium-0.6.tar.gz Running setup.py (path:/private/tmp/pip_build_root/pysodium/setup.py) egg_info for package pysodium

Requirement already satisfied (use --upgrade to upgrade): SecureString in /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from pbp) Requirement already satisfied (use --upgrade to upgrade): pycparser in /opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages (from cffi->pbp) Installing collected packages: pbp, pysodium Running setup.py install for pbp

Installing pbp script to /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin

Running setup.py install for pysodium

Successfully installed pbp pysodium Cleaning up... MacBook-Pro:~ gwen$ pbp Traceback (most recent call last): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pbp", line 9, in load_entry_point('pbp==0.2.1', 'console_scripts', 'pbp')() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 353, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2302, in load_entry_point return ep.load() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2029, in load entry = import(self.module_name, globals(),globals(), ['name']) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/main.py", line 5, in import publickey, pysodium as nacl File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/publickey.py", line 2, in import pysodium as nacl, scrypt # external dependencies File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/init.py", line 32, in sodium = ctypes.cdll.LoadLibrary("libsodium.so") File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/init.py", line 443, in LoadLibrary return self._dlltype(name) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/init.py", line 365, in init self._handle = _dlopen(self._name, mode) OSError: dlopen(libsodium.so, 6): image not found

gwens-MacBook-Pro:~ gwen$ gwens-MacBook-Pro:~ gwen$ sudo pip install libsodium sudo: pip: command not found gwens-MacBook-Pro:~ gwen$ . ~/.profile gwens-MacBook-Pro:~ gwen$ sudo pip install libsodium Downloading/unpacking libsodium ^CCleaning up... Operation cancelled by user Storing debug log for failure in /Users/gwen/.pip/pip.log gwens-MacBook-Pro:~ gwen$ sudo [prt install libsodium sudo: [prt: command not found gwens-MacBook-Pro:~ gwen$ sudo port install libsodium ---> Cleaning libsodium ---> Scanning binaries for linking errors: 100.0% ---> No broken files found. gwens-MacBook-Pro:~ gwen$ vi new gwens-MacBook-Pro:~ gwen$ pbp Traceback (most recent call last): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/pbp", line 9, in load_entry_point('pbp==0.2.1', 'console_scripts', 'pbp')() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 353, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2302, in load_entry_point return ep.load() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pkg_resources.py", line 2029, in load entry = import(self.module_name, globals(),globals(), ['name']) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/main.py", line 5, in import publickey, pysodium as nacl File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pbp/publickey.py", line 2, in import pysodium as nacl, scrypt # external dependencies File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pysodium/init.py", line 32, in sodium = ctypes.cdll.LoadLibrary("libsodium.so") File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/init.py", line 443, in LoadLibrary return self._dlltype(name) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/init.py", line 365, in init self._handle = _dlopen(self._name, mode) OSError: dlopen(libsodium.so, 6): image not found

Any suggestions?

[DrWhax]

It can't seem to open libsodium.so.6. can it find libsodium.so? What if you provide a symlink from libsodium.so to libsodium.so.6?

[stef]

dunno about freebsd, does it need ldconfig?

[stef]

i was told to try /etc/rc.d/ldconfig start

[gwenhastings]

no ldconfig on OSX an the ctypes cant find lib issue seems to be documented here https://www.google.com/search?q=%22OSError%3A+dlopen%28libsodium.so%2C+6%29%3A+image+not+found%22&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=fflb

and file on my libsodium by hand or by macports shows same arch as the python interpreter.. and this was NOT happening before this last change stef...and the migration to cytpes seems to have activated this bug(not that I even understand except to know that its a change in how the lib is called... for python) file /usr/local/lib/libsodium.4.dylib /usr/local/lib/libsodium.4.dylib: Mach-O 64-bit dynamically linked shared library x86_64 file /opt/local/lib/libsodium.4.dylib /opt/local/lib/libsodium.4.dylib: Mach-O 64-bit dynamically linked shared library x86_64 gwens-MacBook-Pro:crypto gwen$ sudo port uninstall libsodium ---> Deactivating libsodium @0.4.5_0 ---> Cleaning libsodium ---> Uninstalling libsodium @0.4.5_0 ---> Cleaning libsodium

also tried it in both locations with appropriate changes of LD_LIBRARY_CONFIG as well as path to change the interpreter used from macports to osx native

 I am stumped for a moment...

[stef]

apparently libs on macosx are called something else from .so: https://stackoverflow.com/questions/11554355/mac-os-x-lion-python-ctype-cdll-error-lib-so-6-image-not-found can you try out to change line 32 in pysodium/__init__.py to

sodium = ctypes.cdll.LoadLibrary("libsodium.dylib")

[gwenhastings]

working... ie that resolved the osx case

[gwenhastings]

uh stef? after you and Thomas get done, will I still be able to have a printable 32 byte public key? and we are aiming for some kind of gpg command line compatibility as much as possible?(to reuse most of the scripts and software already built for calling gpg from scripts etc) ouch I just tried the key-export and armor functions and got out

(=Q(P6b=tbfHtx;n>V(bn~Tgun}3aaajKbEfLt{2_cFHyBPIk10b&vqLE1)V4l&-m?w86%$$hNKOwW}G2DN&dbRI4DyV;V}@<mIeSFsfXh@l^9Ox?-=-M(F2yZ*-T$^@oA?$6I3UTt{Wc-+1hD14}GLyC|HO|HGD}LiROzzF$kEt>!O|FW>GSyEAecAsnQtrZTXf-QLGB7bTEifIF)&mxF*-9cIx;pcGBi0hH#Q(3ARr(hGB7bUEifIF)&mxF_-9cIx;pcGBq$TH8&t2ARr(hbY_jNYh%

as a result which is a far cry from my present pcp key for curve p25519:

1l0$WoM5C8z=yeZG7?$]f^Uu8.g>4rf#t^6mfW9(rr910

and to tell the truth after decades of enduring the pgp format and monstrosity that pgp keys became (dont even get me started on the abortion known as web of trust(evidence) ) I really prefer the smaller ??-85 presentation format for things like sigs etc...

will this be possible? gwen

[stef]

hmm, not directly. tom now also uses separate keys for encryption and signing, that means double the key size, however in pbp these two are considered "short-term", and there's a long-term signing key. so in pbp there's gonna be 3*32 bytes.

[gwenhastings]

hmm do these need to be represented in an external presentation format to allow someone to encrypt to moi?

 gwen

[stef]

for encryption not, for signing yes. for replacing short term keys, while having a trust anchor in the long term secret key, yes.

[gwenhastings]

and thus the thrust of my inquiry.. I still want a 32 byte external encryption key format for printing on business cards etc.(yes some of us still use same) .. having this would allow one to boot strap into longer key representations and go dark more easily in any conversation whether initiated offline or online. ie 32 random bytes are barely typeable.. 64 is beyond the pale for most folks to type(yes back in the day I hand toggled 4K 12bit programs into pdp8 etc) not no more...

[stef]

for that i would recommend to publish the long-term signing key, which you can then use to issue new encryption keys to your peers when needed.

[gwenhastings]

and a signing key wont encrypt the initial conversation I want my first conversation to be private when bootstrapping from a business card into an encrypted online conversation.. a long term key is not needed here but encryption from the start IS needed...(tradecraft reasons)

[gwenhastings]

so is it possible to have an option to export an encryption key alone or encryption and/or signing key ie I could then write a script to generate an encryption key for particular usages..

[gwenhastings]

or am I missing something and its(the option I am requesting ) already there? btw thanx for the fast response on the osx issue.

[stef]

you need different keys for signing and encrypting.

[gwenhastings]

yes I understand that.. but for a Person possessing a business card with an encryption key to contact me NO signature is necessary when I hand said business card in person to the recipient. I just want the ability to extract each keytype into its own printable representation, ie the above is merely one example, I can think of more in tradecraft where signatures are NOT necessary for secure comms just an encryption key.

and while someone MAY be willing to type 32 bytes in to be able to reach me 64 is OUT of the question and 96 keystrokes beyond the pale.

I will be testing next to export/import encryption and signature keys into datamatrix,QR and PDF -417 encodings for optical pickup, encryption + sig key is valuable for that use case and MITM attacks ARE of concern so sigs become important.