basic functionalty

modules/Crypto/PublicKey/__init__.py

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+# -*- coding: utf-8 -*-
+#
+# ===================================================================
+# The contents of this file are dedicated to the public domain.  To
+# the extent that dedication to the public domain is not available,
+# everyone is granted a worldwide, perpetual, royalty-free,
+# non-exclusive license to exercise all rights associated with the
+# contents of this file for any purpose whatsoever.
+# No rights are reserved.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+# ===================================================================
+
+"""Public-key encryption and signature algorithms.
+
+Public-key encryption uses two different keys, one for encryption and
+one for decryption.  The encryption key can be made public, and the
+decryption key is kept private.  Many public-key algorithms can also
+be used to sign messages, and some can *only* be used for signatures.
+
+========================  =============================================
+Module                    Description
+========================  =============================================
+Crypto.PublicKey.DSA      Digital Signature Algorithm (Signature only)
+Crypto.PublicKey.ElGamal  (Signing and encryption)
+Crypto.PublicKey.RSA      (Signing, encryption, and blinding)
+========================  =============================================
+
+:undocumented: _DSA, _RSA, _fastmath, _slowmath, pubkey
+"""
+
+class KeyFormatError(ValueError):
+    pass
+
+__all__ = ['RSA', 'DSA', 'ElGamal']
+__revision__ = "$Id$"
+