Update bls aggregation benchmark

benchmarks/bench_bls_sig_agggregation.nim

@@ -57,7 +57,13 @@ proc main(nb_samples: Natural) =
     parent_hashes = newSeqWith(num_parent_hashes, randBytes32())
     shard_block_hash = randBytes32()
 
-  echo "\n#### Block parameters"
+  echo '\n'
+  echo "######################"
+  echo "#"
+  echo "# Benchmark parameters"
+  echo "#"
+  echo "######################"
+  echo '\n'
   echo &"Number of validators:          {num_validators:>64}"
   echo &"Number of block parent hashes: {num_parent_hashes:>64}"
   echo &"Fork version:                  {fork_version:>64}"
@@ -67,59 +73,93 @@ proc main(nb_samples: Natural) =
   echo &"Shard_block_hash:              {shard_block_hash.toHex:>64}"
   echo &"justified_slot:                {justified_slot:>64}"
 
-  #####################
+  echo '\n'
+  echo "######################"
+  echo "#"
+  echo "# Benchmark prologue"
+  echo "#"
+  echo "######################"
+  echo '\n'
+
   var start = cpuTime()
   let secret_public_keypairs = newSeqWith(num_validators, newKeyPair())
   var stop = cpuTime()
-
-  echo '\n'
-  echo "#### Message, crypto keys and signatures"
+  echo "#### Message crypto keys, signatures and proofs of possession"
   echo &"{num_validators} secret and public keys pairs generated in {stop - start :>4.3f} s"
   echo &"Throughput: {num_validators.float / (stop - start) :>4.3f} kps/s (key pairs/second)"
 
-  echo '\n'
+  start = cpuTime()
+  let proof_of_possessions = secret_public_keypairs.mapIt(it.generatePoP())
+  stop = cpuTime()
+  echo &"{num_validators} proof of possessions in {stop - start :>4.3f} s"
+  echo &"Throughput: {num_validators.float / (stop - start) :>4.3f} pops/s (proofs-of-possession/second)"
+
   start = cpuTime()
   let msg = attestation_signed_data(
-              fork_version,
-              slot,
-              shard_id,
-              parent_hashes,
-              shard_block_hash,
-              justified_slot
+                fork_version,
+                slot,
+                shard_id,
+                parent_hashes,
+                shard_block_hash,
+                justified_slot
               )
   stop = cpuTime()
   echo &"Message generated in {(stop - start) * 1_000 :>4.3f} ms"
 
   echo '\n'
-  var pubkey_sig_pairs: tuple[pubkeys: seq[VerKey], signatures: seq[Signature]]
+  var pubkeys: seq[VerKey]
+  var signatures: seq[Signature]
   start = cpuTime()
   for kp in secret_public_keypairs:
-    # Note that message is first passed through
-    # Blake2 384 at the moment
-    pubkey_sig_pairs.pubkeys.add kp.verkey
-    pubkey_sig_pairs.signatures.add kp.sigkey.signMessage(msg.data) # toOpenArray?
+    pubkeys.add kp.verkey
+    signatures.add kp.sigkey.signMessage(msg.data) # toOpenArray?
   stop = cpuTime()
   echo &"{num_validators} public key and message signature pairs generated in {stop - start :>4.3f} s"
   echo &"Throughput: {num_validators.float / (stop - start) :>4.3f} kps/s (keysig pairs/second)"
+  echo "Note: message is re-hashed through Blake2B-384."
+  echo "      Eth2.0 spec mentions hashing with Blake2b-512 and slicing the first 256-bit."
+  echo "      However message signing is unspecified, and Milagro BLS12-384 requires a 384-bit input."
+
+  echo '\n'
+  echo "######################"
+  echo "#"
+  echo "# Benchmark main body"
+  echo "#"
+  echo "######################"
+  echo '\n'
+
+  echo '\n'
+  echo "#### Benchmark: proofs-of-possessions verification"
+  var pop_valid: bool
+  bench "Benchmarking proofs-of-possessions verification", pop_valid:
+    for i in 0 ..< proof_of_possessions.len:
+      pop_valid = pop_valid and proof_of_possessions[i].verifyPoP(pubkeys[i])
 
   ### Bench stuck in ECP2 multiplication at the moment
-  # echo '\n'
-  # echo "#### Benchmark: public keys aggregation"
-  # var agg_pubkey: AggregatedVerKey
-  # bench "Benchmarking public key aggregation", agg_pubkey:
-  #   agg_pubkey = initAggregatedKey(pubkey_sig_pairs.pubkeys)
+  echo '\n'
+  echo "#### Benchmark: public keys aggregation"
+  var agg_pubkey: VerKey
+  bench "Benchmarking public key aggregation", agg_pubkey:
+    agg_pubkey = combine(pubkeys)
 
   echo '\n'
   echo "#### Benchmark: signature aggregation"
-  var agg_sig: AggregatedSignature
+  var agg_sig: Signature
   bench "Benchmarking signature aggregation", agg_sig:
-    agg_sig = initAggregatedSignature(pubkey_sig_pairs)
+    agg_sig = combine(signatures)
+
+  echo '\n'
+  echo "#### Benchmark: message verification"
+  var msg_verif: bool
+  bench "Benchmarking message verification", msg_verif:
+    msg_verif = agg_sig.verifyMessage(msg.data, agg_pubkey)
 
-  # echo '\n'
-  # echo "#### Benchmark: message verification"
-  # var verif: bool
-  # bench "Benchmarking message verification", verif:
-  #   verif = agg_sig.verifyMessage(msg.data, agg_pubkey)
+  #####################
+  #
+  # Benchmark epilogue
+  #
+  #####################
+  discard
 
 when isMainModule:
   main(100)