61 lines
1.2 KiB
Python
61 lines
1.2 KiB
Python
import base64
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from Crypto.Cipher import AES
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import hashlib
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class Crypto:
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def __init__(self, secret):
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self.secret = add_pad(secret[0:16])
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self.cipher = AES.new(self.secret, AES.MODE_ECB)
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def encrypt(self, msg):
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return base64.urlsafe_b64encode(
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self.cipher.encrypt(
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add_pad(
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msg
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)
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)
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).decode("utf-8")
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def decrypt(self, enc):
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return remove_pad(
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self.cipher.decrypt(
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base64.urlsafe_b64decode(
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enc
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)
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).decode("utf-8")
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)
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def add_pad(string):
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""" Add spaces until length is multiple of 16 """
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while len(string)%16 != 0:
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string+=" "
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return string
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def get_direct_token(share, filename):
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if not 'pass_hash' in share:
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return None
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return password_hash(
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share['pass_hash'] + filename
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)
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def password_hash(string, salt=""):
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if type(string) == str:
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string = string.encode("utf-8")
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if type(salt) == str:
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salt = salt.encode("utf-8")
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return hashlib.sha1(
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string+salt
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).hexdigest()
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def remove_pad(string):
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""" Remove spaces from right """
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return string.rstrip(" ")
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