client: Hash the nonce share without encoding

Manoranjith · Manoranjith · commit f732500b0d6e · 2022-01-17T22:44:08.000+05:30
- Nonce share, by itself is a byte array.

- Hence, it can be directly hashed without encoding.

Signed-off-by: Manoranjith &lt;ponraj.manoranjitha@in.bosch.com&gt;
diff --git a/client/proposal.go b/client/proposal.go
@@ -26,7 +26,6 @@ import (
 	"perun.network/go-perun/log"
 	"perun.network/go-perun/wallet"
 	"perun.network/go-perun/wire"
-	"perun.network/go-perun/wire/perunio"
 	pcontext "polycry.pt/poly-go/context"
 	"polycry.pt/poly-go/sync/atomic"
 )
@@ -496,7 +495,7 @@ func nonceShares(proposer, proposee NonceShare) []NonceShare {
 func calcNonce(nonceShares []NonceShare) channel.Nonce {
 	hasher := newHasher()
 	for i, share := range nonceShares {
-		if err := perunio.Encode(hasher, share); err != nil {
+		if _, err := hasher.Write(share[:]); err != nil {
 			log.Panicf("Failed to encode nonce share %d for hashing", i)
 		}
 	}

Original file line number	Diff line number	Diff line change
`@@ -26,7 +26,6 @@ import (`
`26`	`26`	`"perun.network/go-perun/log"`
`27`	`27`	`"perun.network/go-perun/wallet"`
`28`	`28`	`"perun.network/go-perun/wire"`
`29`		`- "perun.network/go-perun/wire/perunio"`
`30`	`29`	`pcontext "polycry.pt/poly-go/context"`
`31`	`30`	`"polycry.pt/poly-go/sync/atomic"`
`32`	`31`	`)`
`@@ -496,7 +495,7 @@ func nonceShares(proposer, proposee NonceShare) []NonceShare {`
`496`	`495`	`func calcNonce(nonceShares []NonceShare) channel.Nonce {`
`497`	`496`	`hasher := newHasher()`
`498`	`497`	`for i, share := range nonceShares {`
`499`		`- if err := perunio.Encode(hasher, share); err != nil {`
	`498`	`+ if _, err := hasher.Write(share[:]); err != nil {`
`500`	`499`	`log.Panicf("Failed to encode nonce share %d for hashing", i)`
`501`	`500`	`}`
`502`	`501`	`}`