| __init__.py |
|
1931 |
| _compat.py |
Common functions for providing cross-python version compatibility.
|
4047 |
| _rwlock.py |
Read-Write locking primitive
Synchronization object used in a solution of so-called second
readers-writers problem. In this problem, many readers can simultaneously
access a share, and a writer has an exclusive access to this share.
Additionally, the following constraints should be met:
1) no reader should be kept waiting if the share is currently opened for
reading unless a writer is also waiting for the share,
2) no writer should be kept waiting for the share longer than absolutely
necessary.
The implementation is based on [1, secs. 4.2.2, 4.2.6, 4.2.7]
with a modification -- adding an additional lock (C{self.__readers_queue})
-- in accordance with [2].
Sources:
[1] A.B. Downey: "The little book of semaphores", Version 2.1.5, 2008
[2] P.J. Courtois, F. Heymans, D.L. Parnas:
"Concurrent Control with 'Readers' and 'Writers'",
Communications of the ACM, 1971 (via [3])
[3] http://en.wikipedia.org/wiki/Readers-writers_problem
|
2849 |
| _sha3.py |
Implementation of the SHAKE-256 algorithm for Ed448
|
4747 |
| _version.py |
{
"date": "2025-03-13T12:48:15+0100",
"dirty": false,
"error": null,
"full-revisionid": "2a6593d840ad153a16ebdd4f9b772b290494f3e3",
"version": "0.19.1"
}
|
498 |
| curves.py |
Serialise the curve parameters to binary string.
:param str encoding: the format to save the curve parameters in.
Default is ``named_curve``, with fallback being the ``explicit``
if the OID is not set for the curve.
:param str point_encoding: the point encoding of the generator when
explicit curve encoding is used. Ignored for ``named_curve``
format.
:return: DER encoded ECParameters structure
:rtype: bytes
|
15975 |
| der.py |
Encode and IMPLICIT value using :term:`DER`.
:param int tag: the tag value to encode, must be between 0 an 31 inclusive
:param bytes value: the data to encode
:param str cls: the class of the tag to encode: "application",
"context-specific", or "private"
:rtype: bytes
|
16444 |
| ecdh.py |
Class for performing Elliptic-curve Diffie-Hellman (ECDH) operations.
|
11011 |
| ecdsa.py |
Low level implementation of Elliptic-Curve Digital Signatures.
.. note ::
You're most likely looking for the :py:class:`~ecdsa.keys` module.
This is a low-level implementation of the ECDSA that operates on
integers, not byte strings.
NOTE: This a low level implementation of ECDSA, for normal applications
you should be looking at the keys.py module.
Classes and methods for elliptic-curve signatures:
private keys, public keys, signatures,
and definitions of prime-modulus curves.
Example:
.. code-block:: python
# (In real-life applications, you would probably want to
# protect against defects in SystemRandom.)
from random import SystemRandom
randrange = SystemRandom().randrange
# Generate a public/private key pair using the NIST Curve P-192:
g = generator_192
n = g.order()
secret = randrange( 1, n )
pubkey = Public_key( g, g * secret )
privkey = Private_key( pubkey, secret )
# Signing a hash value:
hash = randrange( 1, n )
signature = privkey.sign( hash, randrange( 1, n ) )
# Verifying a signature for a hash value:
if pubkey.verifies( hash, signature ):
print("Demo verification succeeded.")
else:
print("*** Demo verification failed.")
# Verification fails if the hash value is modified:
if pubkey.verifies( hash-1, signature ):
print("**** Demo verification failed to reject tampered hash.")
else:
print("Demo verification correctly rejected tampered hash.")
Revision history:
2005.12.31 - Initial version.
2008.11.25 - Substantial revisions introducing new classes.
2009.05.16 - Warn against using random.randrange in real applications.
2009.05.17 - Use random.SystemRandom by default.
Originally written in 2005 by Peter Pearson and placed in the public domain,
modified as part of the python-ecdsa package.
|
31699 |
| eddsa.py |
Implementation of Edwards Digital Signature Algorithm. |
7170 |
| ellipticcurve.py |
:term:`Short Weierstrass Elliptic Curve <short Weierstrass curve>` over a
prime field.
|
54296 |
| errors.py |
Raised in case the encoding of private or public key is malformed. |
130 |
| keys.py |
Primary classes for performing signing and verification operations.
|
65503 |
| numbertheory.py |
Base class for exceptions in this module. |
17831 |
| rfc6979.py |
RFC 6979:
Deterministic Usage of the Digital Signature Algorithm (DSA) and
Elliptic Curve Digital Signature Algorithm (ECDSA)
http://tools.ietf.org/html/rfc6979
Many thanks to Coda Hale for his implementation in Go language:
https://github.com/codahale/rfc6979
|
2850 |
| ssh.py |
|
1916 |
| test_curves.py |
|
13081 |
| test_der.py |
This is the old way to use the function. |
18915 |
| test_ecdh.py |
|
15380 |
| test_ecdsa.py |
Check test vectors from X9.62 |
25037 |
| test_eddsa.py |
|
33720 |
| test_ellipticcurve.py |
|
8798 |
| test_jacobi.py |
|
25811 |
| test_keys.py |
Verify that ecdsa.keys.VerifyingKey.from_string() can be used with
bytes-like objects
|
39415 |
| test_malformed_sigs.py |
Since the data is hashed for processing, really any string will do. |
11289 |
| test_numbertheory.py |
Strategy that returns lists of numbers, all having a common factor.
|
13265 |
| test_pyecdsa.py |
|
91272 |
| test_rw_lock.py |
@param buffer_: common buffer_ shared by the readers and writers
@type buffer_: list
@type rw_lock: L{RWLock}
@param init_sleep_time: sleep time before doing any action
@type init_sleep_time: C{float}
@param sleep_time: sleep time while in critical section
@type sleep_time: C{float}
@param to_write: data that will be appended to the buffer
|
7021 |
| test_sha3.py |
|
3042 |
| util.py |
This module includes some utility functions.
The methods most typically used are the sigencode and sigdecode functions
to be used with :func:`~ecdsa.keys.SigningKey.sign` and
:func:`~ecdsa.keys.VerifyingKey.verify`
respectively. See the :func:`sigencode_strings`, :func:`sigdecode_string`,
:func:`sigencode_der`, :func:`sigencode_strings_canonize`,
:func:`sigencode_string_canonize`, :func:`sigencode_der_canonize`,
:func:`sigdecode_strings`, :func:`sigdecode_string`, and
:func:`sigdecode_der` functions.
|
18006 |