V3 version with backward comp

backend/internal/service/checksum.go

@@ -2,18 +2,9 @@ package service
 
 import (
 	"crypto/sha256"
-	"crypto/subtle"
 )
 
 func CreateSHA256Hash(data []byte) []byte {
-	hasher := sha256.New()
-	hasher.Write(data)
-	return hasher.Sum(nil)
-}
-
-func CompareHash(x, y []byte) bool {
-	if len(x) != len(y) {
-		return false
-	}
-	return subtle.ConstantTimeCompare(x, y) == 1
+	h := sha256.Sum256(data)
+	return h[:]
 }