From 7e48c1f9584783e88650ef4a5b0f438748dd9032 Mon Sep 17 00:00:00 2001
From: Grégoire Duchêne <gduchene@awhk.org>
Date: Sat, 5 Mar 2022 15:00:44 +0000
Subject: Use clearer return types for keys

---
 main.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index 996b359..b28865f 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@
 package main
 
 import (
+	"crypto"
 	"crypto/ecdsa"
 	"crypto/elliptic"
 	"crypto/rand"
@@ -285,7 +286,7 @@ func extKeyUsage() []x509.ExtKeyUsage {
 	return es
 }
 
-func keyPair() (interface{}, interface{}, error) {
+func keyPair() (crypto.PrivateKey, crypto.PublicKey, error) {
 	switch keyAlgo {
 	case "ecdsa":
 		key, err := ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
@@ -331,7 +332,7 @@ func newSerial() *big.Int {
 	return x.Add(x, big.NewInt(1))
 }
 
-func parsePrivateKey(b *pem.Block) (interface{}, error) {
+func parsePrivateKey(b *pem.Block) (crypto.PrivateKey, error) {
 	switch b.Type {
 	case "EC PRIVATE KEY":
 		return x509.ParseECPrivateKey(b.Bytes)
-- 
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