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Remove nim random usage from noise

This commit is contained in:
Giovanni Petrantoni 2020-03-26 15:04:46 +09:00
parent b132eae939
commit 33ceefb209
1 changed files with 6 additions and 2 deletions
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8
libp2p/protocols/secure/noise.nim
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@ -9,7 +9,6 @@
import chronos import chronos
import chronicles import chronicles
import random
import stew/[endians2, byteutils] import stew/[endians2, byteutils]
import nimcrypto/[utils, sysrand, sha2, hmac] import nimcrypto/[utils, sysrand, sha2, hmac]
import ../../connection import ../../connection
@ -283,8 +282,13 @@ proc sendHSMessage(sconn: Connection; buf: seq[byte]) {.async.} =
await sconn.write(outbuf) await sconn.write(outbuf)
proc packNoisePayload(payload: openarray[byte]): seq[byte] = proc packNoisePayload(payload: openarray[byte]): seq[byte] =
var
ns: uint32
if randomBytes(addr ns, 4) != 4:
raise newException(NoiseHandshakeError, "Failed to generate randomBytes")
let let
noiselen = rand(2..<NoiseSize) noiselen = int((ns mod (NoiseSize - 2)) + 1)
plen = payload.len.uint16 plen = payload.len.uint16
var var