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61 lines
1.8 KiB
61 lines
1.8 KiB
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package trie
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import "github.com/ethereum/go-ethereum/crypto"
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var keyPrefix = []byte("secure-key-")
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type SecureTrie struct {
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*Trie
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}
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func NewSecure(root []byte, backend Backend) *SecureTrie {
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return &SecureTrie{New(root, backend)}
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}
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func (self *SecureTrie) Update(key, value []byte) Node {
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shaKey := crypto.Sha3(key)
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self.Trie.cache.Put(append(keyPrefix, shaKey...), key)
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return self.Trie.Update(shaKey, value)
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}
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func (self *SecureTrie) UpdateString(key, value string) Node {
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return self.Update([]byte(key), []byte(value))
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}
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func (self *SecureTrie) Get(key []byte) []byte {
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return self.Trie.Get(crypto.Sha3(key))
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}
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func (self *SecureTrie) GetString(key string) []byte {
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return self.Get([]byte(key))
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}
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func (self *SecureTrie) Delete(key []byte) Node {
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return self.Trie.Delete(crypto.Sha3(key))
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}
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func (self *SecureTrie) DeleteString(key string) Node {
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return self.Delete([]byte(key))
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}
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func (self *SecureTrie) Copy() *SecureTrie {
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return &SecureTrie{self.Trie.Copy()}
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}
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func (self *SecureTrie) GetKey(shaKey []byte) []byte {
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return self.Trie.cache.Get(append(keyPrefix, shaKey...))
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}
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