From 665a44646e9453e37c8a73bdd2c94ba7dc1e7c0a Mon Sep 17 00:00:00 2001 From: obscuren Date: Wed, 29 Oct 2014 10:29:22 +0100 Subject: Generic hashing method --- ethchain/derive_sha.go | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 ethchain/derive_sha.go diff --git a/ethchain/derive_sha.go b/ethchain/derive_sha.go new file mode 100644 index 000000000..b41252e39 --- /dev/null +++ b/ethchain/derive_sha.go @@ -0,0 +1,20 @@ +package ethchain + +import ( + "github.com/ethereum/go-ethereum/ethtrie" + "github.com/ethereum/go-ethereum/ethutil" +) + +type DerivableList interface { + Len() int + GetRlp(i int) []byte +} + +func DeriveSha(list DerivableList) []byte { + trie := ethtrie.New(ethutil.Config.Db, "") + for i := 0; i < list.Len(); i++ { + trie.Update(string(ethutil.NewValue(i).Encode()), string(list.GetRlp(i))) + } + + return trie.GetRoot() +} -- cgit v1.2.3