HEX
Server: Apache
System: Linux vpshost0650.publiccloud.com.br 4.4.79-grsec-1.lc.x86_64 #1 SMP Wed Aug 2 14:18:21 -03 2017 x86_64
User: bandeirantesbomb3 (10068)
PHP: 8.0.7
Disabled: apache_child_terminate,dl,escapeshellarg,escapeshellcmd,exec,link,mail,openlog,passthru,pcntl_alarm,pcntl_exec,pcntl_fork,pcntl_get_last_error,pcntl_getpriority,pcntl_setpriority,pcntl_signal,pcntl_signal_dispatch,pcntl_sigprocmask,pcntl_sigtimedwait,pcntl_sigwaitinfo,pcntl_strerror,pcntl_wait,pcntl_waitpid,pcntl_wexitstatus,pcntl_wifexited,pcntl_wifsignaled,pcntl_wifstopped,pcntl_wstopsig,pcntl_wtermsig,php_check_syntax,php_strip_whitespace,popen,proc_close,proc_open,shell_exec,symlink,system
$ pwd: /usr/share/doc/python2-cryptography-1.7.2/docs/development/custom-vectors/
Upload Files
File: //usr/share/doc/python2-cryptography-1.7.2/docs/development/custom-vectors/secp256k1.rst
SECP256K1 vector creation
=========================

This page documents the code that was used to generate the SECP256K1 elliptic
curve test vectors as well as code used to verify them against another
implementation.


Creation
--------

The vectors are generated using a `pure Python ecdsa`_ implementation. The test
messages and combinations of algorithms are derived from the NIST vector data.

.. literalinclude:: /development/custom-vectors/secp256k1/generate_secp256k1.py

Download link: :download:`generate_secp256k1.py
</development/custom-vectors/secp256k1/generate_secp256k1.py>`


Verification
------------

``cryptography`` was modified to support the SECP256K1 curve. Then
the following python script was run to generate the vector files.

.. literalinclude:: /development/custom-vectors/secp256k1/verify_secp256k1.py

Download link: :download:`verify_secp256k1.py
</development/custom-vectors/secp256k1/verify_secp256k1.py>`

.. _`pure Python ecdsa`: https://pypi.python.org/pypi/ecdsa
@ Telegram