Initial commit.

Author: seb-m

.gitignore

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+# General ignore rules
+
+*.kpf
+*.o
+*.pyc
+*.a
+*~
+\#*
+*.log
+*.tmp
+*.bak
+a.out
+*.out
+*.so
+.#*
+docstrings/
+__pycache__/
+build/
+.DS_Store

Makefile

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+
+clean:
+	find . \( -name '*~' -or \
+		-name '*.pyc' -or \
+		-name '*.pyo' -or \
+		-name '#*' -or \
+		-name '.#*' -or \
+		-name 'MANIFEST' -or \
+		-name '*.so' \) \
+		-print -exec rm {} \;
+	rm -rf dist *build __pycache__

README.md

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+# Threshold Secret Sharing
+
+Implementation of Shamir's secret sharing scheme [http://tools.ietf.org/html/draft-mcgrew-tss-03](http://tools.ietf.org/html/draft-mcgrew-tss-03)
+
+## Example
+
+    import tss
+    # Create 8 shares of the secret recoverable from at least 5
+    # differents shares. Use secretid42 as identifier and hash the
+    # secret with sha256.
+    shares = tss.share_secret(5, 8, 'my shared secret', 'secretid42',
+                              tss.Hash.SHA256)
+    try:
+        # Recover the secret value
+        secret = tss.reconstruct_secret(shares)
+    except tss.TSSError:
+        pass  # Handling error
+
+## Notes
+
+* Operations are _not_ constant-time, and are quite verbose too
+* This implementation doesn't provide ECC encoding/decoding

setup.py

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+#!/usr/bin/env python
+import sys
+if sys.version_info < (2, 6):
+    sys.stderr.write('This module requires at least Python 2.6\n')
+    sys.exit(1)
+
+try:
+    from setuptools import setup
+except:
+    from distutils.core import setup
+
+classif = [
+    'Intended Audience :: Developers',
+    'License :: OSI Approved :: MIT License',
+    'Natural Language :: English',
+    'Operating System :: OS Independent',
+    'Programming Language :: Python',
+    'Programming Language :: Python :: 2.6',
+    'Programming Language :: Python :: 2.7',
+    'Programming Language :: Python :: 3',
+    'Programming Language :: Python :: 3.0',
+    'Programming Language :: Python :: 3.1',
+    'Programming Language :: Python :: 3.2',
+    'Programming Language :: Python :: 3.3',
+    'Topic :: Security',
+    'Topic :: Security :: Cryptography',
+    'Topic :: Software Development :: Libraries',
+    ]
+
+setup(
+    name='tss',
+    version='0.1',
+    description=('Threshold Secret Sharing.'),
+    author='Sebastien Martini',
+    author_email='[email protected]',
+    license='MIT License',
+    classifiers=classif,
+    url='http://github.com/seb-m/tss',
+    py_modules=['tss'],
+    )