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