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Document decrypt function #321

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Document decrypt function #321

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d4654bb
Document decrypt function
KamilaBorowska May 27, 2017
3e6bb7e
Fix formatting (travis complains)
KamilaBorowska May 27, 2017
56a4282
And fix it again
KamilaBorowska May 27, 2017
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18 changes: 18 additions & 0 deletions encryption.py
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,24 @@ def create_decryptor(private_location, public_location):
public_file.write(pem)

def decrypt(ciphertext):
"""Decrypts a string that was encrypted user-side.

Example:

>>> from cryptography.hazmat.backends import default_backend
>>> from cryptography.hazmat.primitives import hashes
>>> from cryptography.hazmat.primitives.asymmetric import padding
>>> from cryptography.hazmat.primitives.serialization import load_pem_public_key
>>> pkey = load_pem_public_key(open("server/pubkey.txt", "rb").read(), default_backend())
>>> message = b"Hello, world!"
>>> encrypted = pkey.encrypt(message, padding.OAEP(
... padding.MGF1(hashes.SHA1()),
... hashes.SHA1(),
... None
... ))
>>> decrypt(encrypted)
b'Hello, world!'
"""
return private_key.decrypt(
ciphertext,
padding.OAEP(
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