def decrypt_acrastruct(data, private_key, client_id=None, zone_id=None):
public_key = data[8:8+45]
encrypted_symmetric = data[8+45:8+45+84]
smessage_decryptor = smessage.SMessage(private_key, public_key)
symmetric = smessage_decryptor.unwrap(encrypted_symmetric)
encrypted_data = data[8+45+84+8:]
if zone_id:
return scell.SCellSeal(symmetric).decrypt(encrypted_data, zone_id)
else:
return scell.SCellSeal(symmetric).decrypt(encrypted_data)
def decrypt_private_key(private_key, key_id, master_key):
return scell.SCellSeal(master_key).decrypt(private_key, key_id)
if node.text:
# encrypt leaf data and replace it in file by base64 encoding
node.text = base64.b64encode(
encryptor.encrypt(node.text.encode('utf-8'),
context + "/" + node.tag)).decode('ascii')
def decrypt_children(node, context):
if len(node):
for i in range(0, len(node)):
decrypt_children(node[i], context + "/" + node.tag)
else:
if node.text:
# decrypt base64 encoded leaf data and replace it by plain value
node.text = encryptor.decrypt(base64.b64decode(
node.text), context + "/" + node.tag).decode('utf-8')
# encoding file 'example_data/test.xml' and save result to encoded_data.xml
tree = ET.parse('example_data/test.xml')
root = tree.getroot()
encryptor = scell.SCellSeal(master_key)
encrypt_children(root, "")
tree.write("encoded_data.xml")
# decoding file encoded_data.xml and save result to decoded_data.xml
tree2 = ET.parse('encoded_data.xml')
root2 = tree2.getroot()
decrypt_children(root2, "")
tree2.write("decoded_data.xml")
# limitations under the License.
#
import sys
from base64 import b64encode, b64decode
from pythemis import scell
_, COMMAND, KEY, MESSAGE, CONTEXT = range(5)
if len(sys.argv) not in (4, 5):
print('Usage: <command: enc | dec > <key> <message> <context (optional)>')
exit(1)
command = sys.argv[COMMAND]
key = sys.argv[KEY]
message = sys.argv[MESSAGE]
context = sys.argv[CONTEXT].encode('utf-8') if len(sys.argv) == 5 else None
cell = scell.SCellSeal(key.encode('utf-8'))
if command == 'enc':
encrypted_message = cell.encrypt(message.encode('utf-8'), context)
encoded_message = b64encode(encrypted_message).decode('ascii')
print(encoded_message)
elif command == 'dec':
decoded_message = b64decode(message.encode('ascii'))
decrypted_message = cell.decrypt(decoded_message, context)
print(decrypted_message.decode('utf-8'))
else:
print('Wrong command, use "enc" or "dec"')
exit(1)
import sys
from base64 import b64encode, b64decode
from pythemis import scell
_, COMMAND, KEY, MESSAGE, CONTEXT = range(5)
if len(sys.argv) not in (4, 5):
sys.stderr.write('usage: {enc|dec} <passphrase> <message> [context]\n')
exit(1)
command = sys.argv[COMMAND]
passphrase = sys.argv[KEY]
message = sys.argv[MESSAGE]
context = sys.argv[CONTEXT].encode('UTF-8') if len(sys.argv) == 5 else None
cell = scell.SCellSeal(passphrase=passphrase)
if command == 'enc':
encrypted_message = cell.encrypt(message.encode('UTF-8'), context)
encoded_message = b64encode(encrypted_message)
print(encoded_message.decode('ASCII'))
elif command == 'dec':
decoded_message = b64decode(message.encode('ASCII'))
decrypted_message = cell.decrypt(decoded_message, context)
print(decrypted_message.decode('UTF-8'))
else:
sys.stderr.write(
'unknown command "{}", use "enc" or "dec"\n'.format(command))
exit(1)
if node.text:
# encrypt leaf data and replace it in file by base64 encoding
node.text = base64.b64encode(
encryptor.encrypt(node.text.encode('utf-8'),
context + "/" + node.tag)).decode('ascii')
def decrypt_children(node, context):
if len(node):
for i in range(0, len(node)):
decrypt_children(node[i], context + "/" + node.tag)
else:
if node.text:
# decrypt base64 encoded leaf data and replace it by plain value
node.text = encryptor.decrypt(base64.b64decode(
node.text), context + "/" + node.tag).decode('utf-8')
# encoding file 'example_data/test.xml' and save result to encoded_data.xml
tree = ET.parse('example_data/test.xml')
root = tree.getroot()
encryptor = scell.SCellSeal(password)
encrypt_children(root, "")
tree.write("encoded_data.xml")
# decoding file encoded_data.xml and save result to decoded_data.xml
tree2 = ET.parse('encoded_data.xml')
root2 = tree2.getroot()
decrypt_children(root2, "")
tree2.write("decoded_data.xml")