p4u
3 years ago
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Copyright (c) 2018, Respective Authors all rights reserved. |
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The MIT License |
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Permission is hereby granted, free of charge, to any person obtaining a copy |
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of this software and associated documentation files (the "Software"), to deal |
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in the Software without restriction, including without limitation the rights |
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the Software is |
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furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included in |
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all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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THE SOFTWARE. |
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# asmt |
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asmt is a GoLang sparse merkle tree. |
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A forked of [Aergo SMT](https://github.com/aergoio/aergo/tree/develop/pkg/trie) with minor style code modifications |
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and some new methods: Walk() WalkWithRoot() and GetWithRoot(). |
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This module includes an abstraction layer to make the SMT more developer friendly with a very easy to use API: |
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+ Init(name, dataDir string) error |
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+ LastAccess() (timestamp int64) |
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+ Add(key, value []byte) error |
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+ AddBatch(keys, values [][]byte) (failedIndexes []int, err error) |
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+ GenProof(key, value []byte) (mproof []byte, err error) |
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+ CheckProof(key, value, root, mproof []byte) (included bool, err error) |
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+ Root() []byte |
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+ HashExists(hash []byte) (bool, error) |
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+ Dump(root []byte) (data []byte, err error) // Dump must return a format compatible with ImportDump |
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+ DumpPlain(root []byte) (keys [][]byte, values [][]byte, err error) |
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+ ImportDump(data []byte) error |
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+ Size(root []byte) (int64, error) |
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+ Snapshot(root []byte) (Tree, error) // Snapshot is a frozen trie on a specific Root hash that cannot be modified |
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