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Implemented client-side propagation stamp generation and inclusion in outbound propagation messages

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This commit is contained in:
Mark Qvist 2025-10-31 21:45:40 +01:00
commit 704b37dc16
7 changed files with 228 additions and 90 deletions
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16
LXMF/LXStamper.py
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@ -10,7 +10,7 @@ import multiprocessing
WORKBLOCK_EXPAND_ROUNDS = 3000
WORKBLOCK_EXPAND_ROUNDS_PN = 1000
WORKBLOCK_EXPAND_ROUNDS_PEERING = 25
STAMP_SIZE = RNS.Identity.HASHLENGTH
STAMP_SIZE = RNS.Identity.HASHLENGTH//8
PN_VALIDATION_POOL_MIN_SIZE = 256
active_jobs = {}
@ -24,7 +24,7 @@ def stamp_workblock(material, expand_rounds=WORKBLOCK_EXPAND_ROUNDS):
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
@ -52,23 +52,23 @@ def validate_peering_key(peering_id, peering_key, target_cost):
def validate_pn_stamp(transient_data, target_cost):
from .LXMessage import LXMessage
if len(transient_data) <= LXMessage.LXMF_OVERHEAD+STAMP_SIZE: return False, None, None
if len(transient_data) <= LXMessage.LXMF_OVERHEAD+STAMP_SIZE: return None, None, None
else:
lxm_data = transient_data[:-STAMP_SIZE]
stamp = transient_data[-STAMP_SIZE:]
transient_id = RNS.Identity.full_hash(lxm_data)
workblock = stamp_workblock(transient_id, expand_rounds=WORKBLOCK_EXPAND_ROUNDS_PN)
if not stamp_valid(stamp, target_cost, workblock): return False, None, None
if not stamp_valid(stamp, target_cost, workblock): return None, None, None
else:
value = stamp_value(workblock, stamp)
return True, transient_id, value
return transient_id, lxm_data, value
def validate_pn_stamps_job_simple(transient_list, target_cost):
validated_messages = []
for transient_data in transient_list:
stamp_valid, transient_id, value = validate_pn_stamp(transient_data, target_cost)
if stamp_valid: validated_messages.append([transient_id, transient_data, value])
transient_id, lxm_data, value = validate_pn_stamp(transient_data, target_cost)
if transient_id: validated_messages.append([transient_id, lxm_data, value])
return validated_messages
@ -80,7 +80,7 @@ def validate_pn_stamps_job_multip(transient_list, target_cost):
with multiprocessing.Pool(pool_count) as p:
validated_entries = p.starmap(validate_pn_stamp, zip(transient_list, itertools.repeat(target_cost)))
return [e for e in validated_entries if e[0] == True]
return [e for e in validated_entries if e[0] != None]
def validate_pn_stamps(transient_list, target_cost):
non_mp_platform = RNS.vendor.platformutils.is_android()