From 47bacfd5c5d22470340e0823c4ad37b45914b68e Mon Sep 17 00:00:00 2001
From: Rasmus Dahlberg <rasmus.dahlberg@kau.se>
Date: Sun, 6 Jun 2021 15:59:35 +0200
Subject: started using the refactored packages in siglog server

---
 pkg/types/util.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 pkg/types/util.go

(limited to 'pkg/types/util.go')

diff --git a/pkg/types/util.go b/pkg/types/util.go
new file mode 100644
index 0000000..3cd7dfa
--- /dev/null
+++ b/pkg/types/util.go
@@ -0,0 +1,21 @@
+package types
+
+import (
+	"crypto/sha256"
+)
+
+const (
+	LeafHashPrefix = 0x00
+)
+
+func Hash(buf []byte) *[HashSize]byte {
+	var ret [HashSize]byte
+	hash := sha256.New()
+	hash.Write(buf)
+	copy(ret[:], hash.Sum(nil))
+	return &ret
+}
+
+func HashLeaf(buf []byte) *[HashSize]byte {
+	return Hash(append([]byte{LeafHashPrefix}, buf...))
+}
-- 
cgit v1.2.3