encpedpop: Remove redundant arg n from signer_step

Author: real-or-random

reference/chilldkg.py

@@ -173,11 +173,10 @@ class Backup(NamedTuple):
 def signer_step1(seed: bytes, params: SessionParams) -> Tuple[SignerState1, SignerMsg1]:
     hostseckey, hostpubkey = hostkey_gen(seed)
     (hostpubkeys, t, params_id) = params
-    n = len(hostpubkeys)
 
     signer_idx = hostpubkeys.index(hostpubkey)
     enc_state, enc_smsg = encpedpop.signer_step(
-        seed, t, n, hostseckey, hostpubkeys, signer_idx
+        seed, t, hostseckey, hostpubkeys, signer_idx
     )
     state1 = SignerState1(params, signer_idx, enc_state)
     return state1, SignerMsg1(enc_smsg)

reference/encpedpop.py

@@ -78,7 +78,7 @@ def session_seed(seed, enckeys, t):
 
 
 def signer_step(
-    seed: bytes, t: int, n: int, deckey: bytes, enckeys: List[bytes], signer_idx: int
+    seed: bytes, t: int, deckey: bytes, enckeys: List[bytes], signer_idx: int
 ) -> Tuple[SignerState, SignerMsg]:
     assert t < 2 ** (4 * 8)
     n = len(enckeys)

reference/tests.py

@@ -60,7 +60,7 @@ def simulate_encpedpop(seeds, t) -> List[Tuple[bytes, simplpedpop.DKGOutput]]:
     enckeys = [out[1] for out in enc_soutputs0]
     for i in range(n):
         deckey = enc_soutputs0[i][0]
-        enc_soutputs1 += [encpedpop.signer_step(seeds[i], t, n, deckey, enckeys, i)]
+        enc_soutputs1 += [encpedpop.signer_step(seeds[i], t, deckey, enckeys, i)]
 
     smsgs = [smsg for (_, smsg) in enc_soutputs1]
     sstates = [sstate for (sstate, _) in enc_soutputs1]