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| author | Rasmus Dahlberg <rasmus.dahlberg@kau.se> | 2021-06-02 00:40:31 +0200 |
|---|---|---|
| committer | Rasmus Dahlberg <rasmus.dahlberg@kau.se> | 2021-06-02 00:40:31 +0200 |
| commit | bd7f85f538a14e59efd647c3fadf9e6dbc6383f7 (patch) | |
| tree | 8c471732ba8706f40c3335fe88aa61520ab5046c /types/util.go | |
| parent | 2dcaf038655426c572c5d292973001c581f0a1a2 (diff) | |
added leaf hash helper
Diffstat (limited to 'types/util.go')
| -rw-r--r-- | types/util.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/types/util.go b/types/util.go index dc8ccba..3cd7dfa 100644 --- a/types/util.go +++ b/types/util.go @@ -4,6 +4,10 @@ import ( "crypto/sha256" ) +const ( + LeafHashPrefix = 0x00 +) + func Hash(buf []byte) *[HashSize]byte { var ret [HashSize]byte hash := sha256.New() @@ -11,3 +15,7 @@ func Hash(buf []byte) *[HashSize]byte { copy(ret[:], hash.Sum(nil)) return &ret } + +func HashLeaf(buf []byte) *[HashSize]byte { + return Hash(append([]byte{LeafHashPrefix}, buf...)) +} |