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https://github.com/markqvist/Reticulum.git
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Fix destination hash construction and random blob extraction
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parent
11667504b2
commit
7997fd104e
@ -89,19 +89,17 @@ class Destination:
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return name
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# @staticmethod
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# def hash(identity, app_name, *aspects):
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# """
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# :returns: A destination name in adressable hash form, for an app_name and a number of aspects.
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# """
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# base_name = Destination.expand_name(None, app_name, *aspects)
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# hash_material = RNS.Identity.full_hash(base_name.encode("utf-8"))
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@staticmethod
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def hash(identity, app_name, *aspects):
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"""
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:returns: A destination name in adressable hash form, for an app_name and a number of aspects.
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"""
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name_hash = RNS.Identity.full_hash(Destination.expand_name(None, app_name, *aspects).encode("utf-8"))
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addr_hash_material = name_hash
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if identity != None:
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addr_hash_material += identity.hash
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# if identity != None:
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# hash_material += identity.hash
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# # Create a digest for the destination
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# return RNS.Identity.full_hash(hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
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return RNS.Identity.full_hash(addr_hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
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@staticmethod
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def app_and_aspects_from_name(full_name):
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@ -117,8 +115,8 @@ class Destination:
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:returns: A destination name in adressable hash form, for a full name string and Identity instance.
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"""
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app_name, aspects = Destination.app_and_aspects_from_name(full_name)
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aspects.append(identity.hexhash)
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return Destination.hash(app_name, *aspects)
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return Destination.hash(identity, app_name, *aspects)
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def __init__(self, identity, direction, type, app_name, *aspects):
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# Check input values and build name string
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@ -144,15 +142,11 @@ class Destination:
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raise TypeError("Selected destination type PLAIN cannot hold an identity")
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self.identity = identity
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self.full_name = Destination.expand_name(identity, app_name, *aspects)
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self.name_hash = RNS.Identity.full_hash(self.expand_name(None, app_name, *aspects).encode("utf-8"))
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self.addr_hash_material = self.name_hash
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if self.identity != None:
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self.addr_hash_material += self.identity.hash
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self.name = Destination.expand_name(identity, app_name, *aspects)
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# Generate the destination address hash
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self.hash = RNS.Identity.full_hash(self.addr_hash_material)[:RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
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self.hash = Destination.hash(self.identity, app_name, *aspects)
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self.name_hash = RNS.Identity.full_hash(self.expand_name(None, app_name, *aspects).encode("utf-8"))
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self.hexhash = self.hash.hex()
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self.default_app_data = None
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@ -166,7 +160,7 @@ class Destination:
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"""
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:returns: A human-readable representation of the destination including addressable hash and full name.
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"""
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return "<"+self.full_name+"/"+self.hexhash+">"
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return "<"+self.name+"/"+self.hexhash+">"
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def announce(self, app_data=None, path_response=False, send=True):
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@ -219,7 +219,7 @@ class Identity:
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signature = packet.data[Identity.KEYSIZE//8+Identity.HASHLENGTH//8+10:Identity.KEYSIZE//8+Identity.HASHLENGTH//8+10+Identity.SIGLENGTH//8]
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app_data = b""
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if len(packet.data) > Identity.KEYSIZE//8+Identity.HASHLENGTH//8+10+Identity.SIGLENGTH//8:
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app_data = packet.data[Identity.KEYSIZE//8+10+Identity.KEYSIZE//8:]
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app_data = packet.data[Identity.KEYSIZE//8+Identity.HASHLENGTH//8+10+Identity.SIGLENGTH//8:]
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signed_data = destination_hash+public_key+name_hash+random_hash+app_data
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@ -245,6 +245,7 @@ class Identity:
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return True
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else:
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RNS.log("Received invalid announce for "+RNS.prettyhexrep(destination_hash)+". Destination mismatch.", RNS.LOG_DEBUG)
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return False
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else:
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@ -1084,7 +1084,7 @@ class Transport:
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if (not any(packet.destination_hash == d.hash for d in Transport.destinations) and packet.hops < Transport.PATHFINDER_M+1):
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announce_emitted = Transport.announce_emitted(packet)
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random_blob = packet.data[RNS.Identity.KEYSIZE//8:RNS.Identity.KEYSIZE//8+RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
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random_blob = packet.data[RNS.Identity.KEYSIZE//8+RNS.Identity.HASHLENGTH//8:RNS.Identity.KEYSIZE//8+RNS.Identity.HASHLENGTH//8+10]
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random_blobs = []
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if packet.destination_hash in Transport.destination_table:
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random_blobs = Transport.destination_table[packet.destination_hash][4]
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@ -1798,14 +1798,12 @@ class Transport:
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queued_announces = True if len(on_interface.announce_queue) > 0 else False
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if queued_announces:
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# TODO: Reset to extra level, probably
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RNS.log("Blocking recursive path request on "+str(on_interface)+" due to queued announces", RNS.LOG_DEBUG)
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RNS.log("Blocking recursive path request on "+str(on_interface)+" due to queued announces", RNS.LOG_EXTREME)
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return
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else:
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now = time.time()
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if now < on_interface.announce_allowed_at:
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# TODO: Reset to extra level, probably
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RNS.log("Blocking recursive path request on "+str(on_interface)+" due to active announce cap", RNS.LOG_DEBUG)
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RNS.log("Blocking recursive path request on "+str(on_interface)+" due to active announce cap", RNS.LOG_EXTREME)
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return
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else:
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tx_time = ((len(path_request_data)+RNS.Reticulum.HEADER_MINSIZE)*8) / on_interface.bitrate
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@ -2058,7 +2056,7 @@ class Transport:
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@staticmethod
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def announce_emitted(packet):
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random_blob = packet.data[RNS.Identity.KEYSIZE//8:RNS.Identity.KEYSIZE//8+RNS.Reticulum.TRUNCATED_HASHLENGTH//8]
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random_blob = packet.data[RNS.Identity.KEYSIZE//8+RNS.Identity.HASHLENGTH//8:RNS.Identity.KEYSIZE//8+RNS.Identity.HASHLENGTH//8+10]
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announce_emitted = int.from_bytes(random_blob[5:10], "big")
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return announce_emitted
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