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Implemented propagation node peering key generation and peering cost signalling

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This commit is contained in:
Mark Qvist 2025-10-31 13:53:59 +01:00
commit 434267784d
6 changed files with 257 additions and 96 deletions
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31
LXMF/LXStamper.py
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@ -7,23 +7,24 @@ import math
import itertools
import multiprocessing
WORKBLOCK_EXPAND_ROUNDS = 3000
WORKBLOCK_EXPAND_ROUNDS_PN = 1000
STAMP_SIZE = RNS.Identity.HASHLENGTH
PN_VALIDATION_POOL_MIN_SIZE = 256
WORKBLOCK_EXPAND_ROUNDS = 3000
WORKBLOCK_EXPAND_ROUNDS_PEERING = 20000
WORKBLOCK_EXPAND_ROUNDS_PN = 1000
STAMP_SIZE = RNS.Identity.HASHLENGTH
PN_VALIDATION_POOL_MIN_SIZE = 256
active_jobs = {}
def stamp_workblock(message_id, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
def stamp_workblock(material, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
wb_st = time.time()
workblock = b""
for n in range(expand_rounds):
workblock += RNS.Cryptography.hkdf(length=256,
derive_from=message_id,
salt=RNS.Identity.full_hash(message_id+msgpack.packb(n)),
derive_from=material,
salt=RNS.Identity.full_hash(material+msgpack.packb(n)),
context=None)
wb_time = time.time() - wb_st
# RNS.log(f"Stamp workblock size {RNS.prettysize(len(workblock))}, generated in {round(wb_time*1000,2)}ms", RNS.LOG_DEBUG)
RNS.log(f"Stamp workblock size {RNS.prettysize(len(workblock))}, generated in {round(wb_time*1000,2)}ms", RNS.LOG_DEBUG)
return workblock
@ -81,9 +82,9 @@ def validate_pn_stamps(transient_list, target_cost):
if len(transient_list) <= PN_VALIDATION_POOL_MIN_SIZE or non_mp_platform: return validate_pn_stamps_job_simple(transient_list, target_cost)
else: return validate_pn_stamps_job_multip(transient_list, target_cost)
def generate_stamp(message_id, stamp_cost):
def generate_stamp(message_id, stamp_cost, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
RNS.log(f"Generating stamp with cost {stamp_cost} for {RNS.prettyhexrep(message_id)}...", RNS.LOG_DEBUG)
workblock = stamp_workblock(message_id)
workblock = stamp_workblock(message_id, expand_rounds=expand_rounds)
start_time = time.time()
stamp = None
@ -362,4 +363,12 @@ if __name__ == "__main__":
RNS.loglevel = RNS.LOG_DEBUG
RNS.log("Testing LXMF stamp generation", RNS.LOG_DEBUG)
message_id = os.urandom(32)
generate_stamp(message_id, cost)
generate_stamp(message_id, cost)
RNS.log("Testing propagation stamp generation", RNS.LOG_DEBUG)
message_id = os.urandom(32)
generate_stamp(message_id, cost, expand_rounds=WORKBLOCK_EXPAND_ROUNDS_PN)
RNS.log("Testing peering key generation", RNS.LOG_DEBUG)
message_id = os.urandom(32)
generate_stamp(message_id, cost, expand_rounds=WORKBLOCK_EXPAND_ROUNDS_PEERING)