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Document the crypto/ module

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Lonami Exo
2017-11-26 16:57:40 +01:00
parent 74ec6391d9
commit a932fb6470
8 changed files with 142 additions and 21 deletions
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17
telethon/crypto/aes.py
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@@ -1,3 +1,6 @@
"""
AES IGE implementation in Python. This module may use libssl if available.
"""
import os
import pyaes
from . import libssl
@@ -9,10 +12,15 @@ if libssl.AES is not None:
else:
# Fallback to a pure Python implementation
class AES:
"""
Class that servers as an interface to encrypt and decrypt
text through the AES IGE mode.
"""
@staticmethod
def decrypt_ige(cipher_text, key, iv):
"""Decrypts the given text in 16-bytes blocks by using the
given key and 32-bytes initialization vector
"""
Decrypts the given text in 16-bytes blocks by using the
given key and 32-bytes initialization vector.
"""
iv1 = iv[:len(iv) // 2]
iv2 = iv[len(iv) // 2:]
@@ -42,8 +50,9 @@ else:
@staticmethod
def encrypt_ige(plain_text, key, iv):
"""Encrypts the given text in 16-bytes blocks by using the
given key and 32-bytes initialization vector
"""
Encrypts the given text in 16-bytes blocks by using the
given key and 32-bytes initialization vector.
"""
# Add random padding iff it's not evenly divisible by 16 already