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Fix destination hash construction and random blob extraction

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This commit is contained in:
Mark Qvist 2022-10-04 09:11:20 +02:00
parent 11667504b2
commit 7997fd104e
3 changed files with 22 additions and 29 deletions
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38
RNS/Destination.py
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@ -89,19 +89,17 @@ class Destination:
return name
# @staticmethod
# def hash(identity, app_name, *aspects):
# """
# :returns: A destination name in adressable hash form, for an app_name and a number of aspects.
# """
# base_name = Destination.expand_name(None, app_name, *aspects)
# hash_material = RNS.Identity.full_hash(base_name.encode("utf-8"))
@staticmethod
def hash(identity, app_name, *aspects):
"""
:returns: A destination name in adressable hash form, for an app_name and a number of aspects.
"""
name_hash = RNS.Identity.full_hash(Destination.expand_name(None, app_name, *aspects).encode("utf-8"))
addr_hash_material = name_hash
if identity != None:
addr_hash_material += identity.hash
# if identity != None:
# hash_material += identity.hash
# # Create a digest for the destination
# return RNS.Identity.full_hash(hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
return RNS.Identity.full_hash(addr_hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
@staticmethod
def app_and_aspects_from_name(full_name):
@ -117,8 +115,8 @@ class Destination:
:returns: A destination name in adressable hash form, for a full name string and Identity instance.
"""
app_name, aspects = Destination.app_and_aspects_from_name(full_name)
aspects.append(identity.hexhash)
return Destination.hash(app_name, *aspects)
return Destination.hash(identity, app_name, *aspects)
def __init__(self, identity, direction, type, app_name, *aspects):
# Check input values and build name string
@ -144,15 +142,11 @@ class Destination:
raise TypeError("Selected destination type PLAIN cannot hold an identity")
self.identity = identity
self.full_name = Destination.expand_name(identity, app_name, *aspects)
self.name_hash = RNS.Identity.full_hash(self.expand_name(None, app_name, *aspects).encode("utf-8"))
self.addr_hash_material = self.name_hash
if self.identity != None:
self.addr_hash_material += self.identity.hash
self.name = Destination.expand_name(identity, app_name, *aspects)
# Generate the destination address hash
self.hash = RNS.Identity.full_hash(self.addr_hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
self.hash = Destination.hash(self.identity, app_name, *aspects)
self.name_hash = RNS.Identity.full_hash(self.expand_name(None, app_name, *aspects).encode("utf-8"))
self.hexhash = self.hash.hex()
self.default_app_data = None
@ -166,7 +160,7 @@ class Destination:
"""
:returns: A human-readable representation of the destination including addressable hash and full name.
"""
return "<"+self.full_name+"/"+self.hexhash+">"
return "<"+self.name+"/"+self.hexhash+">"
def announce(self, app_data=None, path_response=False, send=True):