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29f7573762
* add proto, add boilerplates * add canonical * fix tests * add vote signing test * Update internal/consensus/msgs_test.go * modify state execution in progress * add extension signing * VoteExtension -> ExtendVote * apply review * update data structures * Add comments * Apply suggestions from code review Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * *Signed -> *ToSign * add Vote to RequestExtendVote * apply reviews * Apply suggestions from code review Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com> Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> * fix typo, modify proto Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Dev Ojha <ValarDragon@users.noreply.github.com>
31 lines
1.2 KiB
Markdown
31 lines
1.2 KiB
Markdown
# KVStore
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There are two app's here: the KVStoreApplication and the PersistentKVStoreApplication.
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## KVStoreApplication
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The KVStoreApplication is a simple merkle key-value store.
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Transactions of the form `key=value` are stored as key-value pairs in the tree.
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Transactions without an `=` sign set the value to the key.
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The app has no replay protection (other than what the mempool provides).
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## PersistentKVStoreApplication
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The PersistentKVStoreApplication wraps the KVStoreApplication
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and provides three additional features:
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1) persistence of state across app restarts (using Tendermint's ABCI-Handshake mechanism)
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2) validator set changes
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The state is persisted in leveldb along with the last block committed,
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and the Handshake allows any necessary blocks to be replayed.
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Validator set changes are effected using the following transaction format:
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```md
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"val:pubkey1!power1,pubkey2!power2,pubkey3!power3"
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```
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where `pubkeyN` is a base64-encoded 32-byte ed25519 key and `powerN` is a new voting power for the validator with `pubkeyN` (possibly a new one).
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To remove a validator from the validator set, set power to `0`.
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There is no sybil protection against new validators joining.
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