crypto_yolo_verify

gistfile1.txt

$ 
$ aptitude show libsodium13 
Package: libsodium13                     
New: yes
State: installed
Automatically installed: no
Multi-Arch: same
Version: 1.0.1-1
Priority: optional
Section: universe/libs
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Architecture: amd64
Uncompressed Size: 393 k
Depends: libc6 (>= 2.14)
PreDepends: multiarch-support
Breaks: libsodium13 (!= 1.0.1-1)
Replaces: libsodium13 (< 1.0.1-1)
Description: Network communication, cryptography and signaturing library
 NaCl (pronounced "salt") is a new easy-to-use high-speed software library for network communication, encryption, decryption, signatures,
 etc. 
 
 NaCl's goal is to provide all of the core operations needed to build higher-level cryptographic tools. 
 
 Sodium is a portable, cross-compilable, installable, packageable fork of NaCl, with a compatible API.
Homepage: http://www.libsodium.org/

$ 
$ 
$ python
Python 2.7.9 (default, Apr  2 2015, 15:33:21) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import libnacl
>>> 
>>> libnacl.__version__
'1.4.2'
>>> 
>>> from libnacl import crypto_auth, crypto_auth_verify, crypto_onetimeauth, crypto_onetimeauth_verify
>>> 
>>> 
>>> 
>>> for auth, verify in [[crypto_auth, crypto_auth_verify], [crypto_onetimeauth, crypto_onetimeauth_verify]]:
...     print((auth, verify))
...     print('should be valid:')
...     try:
...             print(repr(verify(auth('foo', 'bar'), 'foo', 'bar')))
...     except:
...             print('> invalid')
...     print('should be invalid:')
...     try:
...             print(repr(verify(auth('foo', 'bar'), 'fizz', 'buzz')))
...     except:
...             print('> invalid')
... 
(<function crypto_auth at 0x7f799b2e10c8>, <function crypto_auth_verify at 0x7f799b2e1140>)
should be valid:
'foo'
should be invalid:
> invalid
(<function crypto_onetimeauth at 0x7f799b2e11b8>, <function crypto_onetimeauth_verify at 0x7f799b2e1230>)
should be valid:
'foo'
should be invalid:
'fizz'
>>> 
>>> 
>>> 
>>> crypto_onetimeauth('foo', 'bar')
'\x0cKJa\x1d_\x02\x05\x0f\x15\x8a\xf4\xb7\x00\x00\x00'
>>> 
>>> crypto_onetimeauth('fizz', 'buzz')
'\x11\xf7\xa3\x0b?n\xb7\xcb\xa4\xcc<\x10-X\x94\xea'
>>> 
>>> 
>>> 
>>> crypto_onetimeauth_verify(crypto_onetimeauth('pubkey', 'secret'), 'pubkey', 'secret')
'pubkey'
>>> 
>>> crypto_onetimeauth_verify(crypto_onetimeauth('pubkey', 'forged'), 'pubkey', 'secret')
'pubkey'
>>> 
>>>