def crypt(action, data, iv_random=True):
try:
# key, it has to be 128, 192, o 256 bits, check configuration
key = '147896523'
# Initialization vector. It has the first 16 bytes in the message.
# it is used to have the same message encrypted but with different result
# CBCMode de AES
if iv_random:
iv = os.urandom(16 * 1024)[0:16]
else:
# This case should be for the emails
iv = ' ' * 16
# The information of the message have to be multiple of 16 (AES block size), for this reason PADDING.
# PADDING Guarantees that the message is multiple of the block
padding = ' '
pad = lambda s: s + (16 - len(s) % 16) * padding
if action == 'encrypt':
return base64.b64encode(
iv + AES.new(key, AES.MODE_CBC, iv).encrypt(pad(data)))
elif action == 'decrypt':
return AES.new(key, AES.MODE_CBC, data[:16]).decrypt(
base64.b64decode(data).rstrip(padding))[16:]
except Exception as e:
HTTP(str(e))
def crypt(action, data, iv_random=True):
try:
import os
from config import AppConfig
config = AppConfig()['crypt']
if not config['is_active']:
return data
# Clave, debe de ser de 128, 192, o 256 bits, check configuration
key = config['key']
# Initialization vector. Almacenado en los 16 primeros bytes del mensaje.
# Utilizado para para tener el mismo mensaje encritado con distinto texto.
# CBCMode de AES
if iv_random:
iv = os.urandom(16 * 1024)[0:16]
else:
# This case should be for the emails
iv = ' ' * 16
# La longitud de la informacion a cifrar debe ser multiple de 16 (tamaño de bloque de AES), por eso PADDING.
# Garantiza que el valor a cifrar sea multiple del tamaño de bloque
padding = ' '
pad = lambda s: s + (16 - len(s) % 16) * padding
import gluon.contrib.aes as AES
import base64
if action == 'encrypt':
return base64.b64encode(iv + AES.new(key, AES.MODE_CBC, iv).encrypt(pad(data)))
elif action == 'decrypt':
return AES.new(key, AES.MODE_CBC, data[:16]).decrypt(base64.b64decode(data).rstrip(padding))[16:]
except Exception as e:
logger.error(str(e))
def decrypt_item(nome_item):
from gluon.contrib import aes as AES
import base64
#chave padrão para criar a sequencia de criptografia, ela usa a sequencia alfabetica dessa chave para criar a criptografia
secret_key = 'yma2578kyma2578kyma2578k'
cipher = AES.new(secret_key,AES.MODE_ECB)
decoded = cipher.decrypt(base64.b64decode(nome_item)).strip()
return decoded
def crypt_item(nome_item):
from gluon.contrib import aes as AES
import base64
#chave padrão para criar a sequencia de criptografia, ela usa a sequencia alfabetica dessa chave para criar a criptografia
msg_text = str(nome_item).rjust( 32)
secret_key = 'yma2578kyma2578kyma2578k'
cipher = AES.new(secret_key,int(AES.MODE_ECB))
encoded = base64.b64encode(cipher.encrypt(str(msg_text)))
return encoded.strip()
def teste_crypt():
from gluon.contrib import aes as AES
import base64
msg_text = '*****@*****.**'.rjust( 32)
secret_key = 'yma2578kyma2578kyma2578k'
cipher = AES.new(secret_key,AES.MODE_ECB)
encoded = base64.b64encode(cipher.encrypt(msg_text))
decoded = cipher.decrypt(base64.b64decode(encoded)).strip()
print decoded.strip()
return 'decoded:' + decoded.strip() + '// coded : ' + encoded.strip()
def AES_new(key, IV=None):
""" Returns an AES cipher object and random IV if None specified """
if IV is None:
IV = fast_urandom16()
return AES.new(key, AES.MODE_CBC, IV), IV
def aes_new(key, iv=None):
""" Returns an AES cipher object and random IV if None specified """
if iv is None:
iv = Enc.fast_urandom16()
return AES.new(str(key), AES.MODE_CBC, iv), iv
