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Refactored fernet to token

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Mark Qvist 2024-11-22 15:19:12 +01:00
parent 04d2626809
commit aabb763cea
8 changed files with 38 additions and 34 deletions
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20
RNS/Link.py
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@ -21,7 +21,7 @@
# SOFTWARE.
from RNS.Cryptography import X25519PrivateKey, X25519PublicKey, Ed25519PrivateKey, Ed25519PublicKey
from RNS.Cryptography import Fernet
from RNS.Cryptography import Token
from RNS.Channel import Channel, LinkChannelOutlet
from time import sleep
@ -61,7 +61,7 @@ class Link:
ECPUBSIZE = 32+32
KEYSIZE = 32
MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.TOKEN_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
ESTABLISHMENT_TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT
"""
@ -188,7 +188,7 @@ class Link:
self.prv = X25519PrivateKey.generate()
self.sig_prv = Ed25519PrivateKey.generate()
self.fernet = None
self.token = None
self.pub = self.prv.public_key()
self.pub_bytes = self.pub.public_bytes()
@ -979,14 +979,14 @@ class Link:
def encrypt(self, plaintext):
try:
if not self.fernet:
if not self.token:
try:
self.fernet = Fernet(self.derived_key)
self.token = Token(self.derived_key)
except Exception as e:
RNS.log("Could not instantiate Fernet while performin encryption on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
RNS.log("Could not instantiate token while performing encryption on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)
raise e
return self.fernet.encrypt(plaintext)
return self.token.encrypt(plaintext)
except Exception as e:
RNS.log("Encryption on link "+str(self)+" failed. The contained exception was: "+str(e), RNS.LOG_ERROR)
@ -995,10 +995,10 @@ class Link:
def decrypt(self, ciphertext):
try:
if not self.fernet:
self.fernet = Fernet(self.derived_key)
if not self.token:
self.token = Token(self.derived_key)
return self.fernet.decrypt(ciphertext)
return self.token.decrypt(ciphertext)
except Exception as e:
RNS.log("Decryption failed on link "+str(self)+". The contained exception was: "+str(e), RNS.LOG_ERROR)