MultiFernet in Python assigning created list
I've been playing with the Fernet module in cryptography.fernet for Python 3.7 to try and create a rotating key structure, and recently discovered MultiFernet; where you provide a list to MultiFernet and are able to encode with index 0, and decode from a list of trial-and-error values within the MultiFernet list. (I hope that makes sense).
However, there seems to be a discrepancy between the way the module behaves and the documentation provided by this document, pages 9 and 10. Essentially, if I have a pre-created list of values, MultiFernet stores the values and creates the cryptographic instance, but loses the ability to encrypt/decrypt.
My code:
from cryptography.fernet import Fernet,MultiFernet
keystore =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key())
f = MultiFernet(keystore) # storing the list keystore creates a cryptographic instance here at f
token = f.encrypt(message) # Get error here, shown below
The error message:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib64/python3.7/site-packages/cryptography/fernet.py", line 151, in encrypt return self._fernets[0].encrypt(msg)
AttributeError: 'bytes' object has no attribute 'encrypt'
Using the same key from the keystore in a single
d = Fernet(keystore[0])
will provide success, but attempting to follow the recipe as the documentation shows that this
g = MultiFernet([keystore[0],keystore[1]])
returns the same error as above (even extracting the keys to individual variables, where key1 = keystore[0], ect)
So I'm at a loss here. Any thoughts?
python python-3.x cryptography
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
add a comment |
I've been playing with the Fernet module in cryptography.fernet for Python 3.7 to try and create a rotating key structure, and recently discovered MultiFernet; where you provide a list to MultiFernet and are able to encode with index 0, and decode from a list of trial-and-error values within the MultiFernet list. (I hope that makes sense).
However, there seems to be a discrepancy between the way the module behaves and the documentation provided by this document, pages 9 and 10. Essentially, if I have a pre-created list of values, MultiFernet stores the values and creates the cryptographic instance, but loses the ability to encrypt/decrypt.
My code:
from cryptography.fernet import Fernet,MultiFernet
keystore =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key())
f = MultiFernet(keystore) # storing the list keystore creates a cryptographic instance here at f
token = f.encrypt(message) # Get error here, shown below
The error message:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib64/python3.7/site-packages/cryptography/fernet.py", line 151, in encrypt return self._fernets[0].encrypt(msg)
AttributeError: 'bytes' object has no attribute 'encrypt'
Using the same key from the keystore in a single
d = Fernet(keystore[0])
will provide success, but attempting to follow the recipe as the documentation shows that this
g = MultiFernet([keystore[0],keystore[1]])
returns the same error as above (even extracting the keys to individual variables, where key1 = keystore[0], ect)
So I'm at a loss here. Any thoughts?
python python-3.x cryptography
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
add a comment |
I've been playing with the Fernet module in cryptography.fernet for Python 3.7 to try and create a rotating key structure, and recently discovered MultiFernet; where you provide a list to MultiFernet and are able to encode with index 0, and decode from a list of trial-and-error values within the MultiFernet list. (I hope that makes sense).
However, there seems to be a discrepancy between the way the module behaves and the documentation provided by this document, pages 9 and 10. Essentially, if I have a pre-created list of values, MultiFernet stores the values and creates the cryptographic instance, but loses the ability to encrypt/decrypt.
My code:
from cryptography.fernet import Fernet,MultiFernet
keystore =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key())
f = MultiFernet(keystore) # storing the list keystore creates a cryptographic instance here at f
token = f.encrypt(message) # Get error here, shown below
The error message:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib64/python3.7/site-packages/cryptography/fernet.py", line 151, in encrypt return self._fernets[0].encrypt(msg)
AttributeError: 'bytes' object has no attribute 'encrypt'
Using the same key from the keystore in a single
d = Fernet(keystore[0])
will provide success, but attempting to follow the recipe as the documentation shows that this
g = MultiFernet([keystore[0],keystore[1]])
returns the same error as above (even extracting the keys to individual variables, where key1 = keystore[0], ect)
So I'm at a loss here. Any thoughts?
python python-3.x cryptography
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
I've been playing with the Fernet module in cryptography.fernet for Python 3.7 to try and create a rotating key structure, and recently discovered MultiFernet; where you provide a list to MultiFernet and are able to encode with index 0, and decode from a list of trial-and-error values within the MultiFernet list. (I hope that makes sense).
However, there seems to be a discrepancy between the way the module behaves and the documentation provided by this document, pages 9 and 10. Essentially, if I have a pre-created list of values, MultiFernet stores the values and creates the cryptographic instance, but loses the ability to encrypt/decrypt.
My code:
from cryptography.fernet import Fernet,MultiFernet
keystore =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key())
f = MultiFernet(keystore) # storing the list keystore creates a cryptographic instance here at f
token = f.encrypt(message) # Get error here, shown below
The error message:
Traceback (most recent call last):
File "<input>", line 1, in <module>
File "/usr/lib64/python3.7/site-packages/cryptography/fernet.py", line 151, in encrypt return self._fernets[0].encrypt(msg)
AttributeError: 'bytes' object has no attribute 'encrypt'
Using the same key from the keystore in a single
d = Fernet(keystore[0])
will provide success, but attempting to follow the recipe as the documentation shows that this
g = MultiFernet([keystore[0],keystore[1]])
returns the same error as above (even extracting the keys to individual variables, where key1 = keystore[0], ect)
So I'm at a loss here. Any thoughts?
python python-3.x cryptography
python python-3.x cryptography
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
asked Nov 24 '18 at 18:51
NanotechMagusNanotechMagus
468
468
add a comment |
add a comment |
1 Answer
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After more research, I realized that the Fernet encryption must be applied after the key is generated for use in the MultiFernet token creation.
Example:
from cryptography.fernet import Fernet,MultiFernet
keystore =
keyfinal =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key()) # generates the initial keys
keyfinal.append(Fernet(keystore[x])) # Applies Fernet encryption to make usable keys
f = MultiFernet(keyfinal) # Set up MultiFernet on the keyfinal list
s = Fernet(keystore[2]) # Take a key from the initial keystore for single key encryption
token = s.encrypt(message) # encrypt using single key
print(f.decrypt(token)) # decrypt using MultiFernet
b"foo bar"
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
add a comment |
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1 Answer
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active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
After more research, I realized that the Fernet encryption must be applied after the key is generated for use in the MultiFernet token creation.
Example:
from cryptography.fernet import Fernet,MultiFernet
keystore =
keyfinal =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key()) # generates the initial keys
keyfinal.append(Fernet(keystore[x])) # Applies Fernet encryption to make usable keys
f = MultiFernet(keyfinal) # Set up MultiFernet on the keyfinal list
s = Fernet(keystore[2]) # Take a key from the initial keystore for single key encryption
token = s.encrypt(message) # encrypt using single key
print(f.decrypt(token)) # decrypt using MultiFernet
b"foo bar"
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
add a comment |
After more research, I realized that the Fernet encryption must be applied after the key is generated for use in the MultiFernet token creation.
Example:
from cryptography.fernet import Fernet,MultiFernet
keystore =
keyfinal =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key()) # generates the initial keys
keyfinal.append(Fernet(keystore[x])) # Applies Fernet encryption to make usable keys
f = MultiFernet(keyfinal) # Set up MultiFernet on the keyfinal list
s = Fernet(keystore[2]) # Take a key from the initial keystore for single key encryption
token = s.encrypt(message) # encrypt using single key
print(f.decrypt(token)) # decrypt using MultiFernet
b"foo bar"
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
add a comment |
After more research, I realized that the Fernet encryption must be applied after the key is generated for use in the MultiFernet token creation.
Example:
from cryptography.fernet import Fernet,MultiFernet
keystore =
keyfinal =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key()) # generates the initial keys
keyfinal.append(Fernet(keystore[x])) # Applies Fernet encryption to make usable keys
f = MultiFernet(keyfinal) # Set up MultiFernet on the keyfinal list
s = Fernet(keystore[2]) # Take a key from the initial keystore for single key encryption
token = s.encrypt(message) # encrypt using single key
print(f.decrypt(token)) # decrypt using MultiFernet
b"foo bar"
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
After more research, I realized that the Fernet encryption must be applied after the key is generated for use in the MultiFernet token creation.
Example:
from cryptography.fernet import Fernet,MultiFernet
keystore =
keyfinal =
message = b"foo bar"
for x in range(4):
keystore.append(Fernet.generate_key()) # generates the initial keys
keyfinal.append(Fernet(keystore[x])) # Applies Fernet encryption to make usable keys
f = MultiFernet(keyfinal) # Set up MultiFernet on the keyfinal list
s = Fernet(keystore[2]) # Take a key from the initial keystore for single key encryption
token = s.encrypt(message) # encrypt using single key
print(f.decrypt(token)) # decrypt using MultiFernet
b"foo bar"
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
answered Nov 24 '18 at 19:58
NanotechMagusNanotechMagus
468
468
add a comment |
add a comment |
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