From bbe795455a13c57dbba64c1082b618e791af46ce Mon Sep 17 00:00:00 2001 From: obscuren Date: Tue, 24 Mar 2015 15:14:03 +0100 Subject: Secure trie shakey / key matching --- trie/secure_trie.go | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) (limited to 'trie/secure_trie.go') diff --git a/trie/secure_trie.go b/trie/secure_trie.go index b9fa376b8..f7a1950e5 100644 --- a/trie/secure_trie.go +++ b/trie/secure_trie.go @@ -2,6 +2,8 @@ package trie import "github.com/ethereum/go-ethereum/crypto" +var keyPrefix = []byte("secure-key-") + type SecureTrie struct { *Trie } @@ -11,7 +13,10 @@ func NewSecure(root []byte, backend Backend) *SecureTrie { } func (self *SecureTrie) Update(key, value []byte) Node { - return self.Trie.Update(crypto.Sha3(key), value) + 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)) @@ -34,3 +39,7 @@ func (self *SecureTrie) DeleteString(key string) Node { 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...)) +} -- cgit