mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
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49 lines
2.1 KiB
Go
49 lines
2.1 KiB
Go
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/*
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Package direct defines an implementation of an on-disk, EIP-2335 keystore.json
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approach towards defining validator accounts in Prysm. A validating private key is
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encrypted using a passphrase and its resulting encrypted file is stored as a
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keystore.json file under a unique, human-readable, account namespace. This direct keymanager approach
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relies on storing account information on-disk, making it trivial to import, export and
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list all associated accounts for a user.
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EIP-2335 is a keystore format defined by https://eips.ethereum.org/EIPS/eip-2335 for
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storing and defining encryption for BLS12-381 private keys, utilized by eth2. This keystore.json
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format is not compatible with the current keystore standard used in eth1 due to a lack of
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support for KECCAK-256. Passwords utilized for key encryptions are strings of arbitrary unicode characters.
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The password is first converted to its NFKD representation, stripped of control codes specified
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in the EIP link above, and finally the password is UTF-8 encoded.
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Accounts are stored on disk according to the following structure using human-readable
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account namespaces as directories:
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wallet-dir/
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keymanageropts.json
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personally-conscious-echidna/
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keystore.json
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deposit_data.ssz
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deposit_transaction.rlp
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shy-extroverted-robin/
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keystore.json
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deposit_data.ssz
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deposit_transaction.rlp
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passwords/
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personally-conscious-echidna.pass
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shy-extroverted-robin.pass
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EIP-2335 keystores are stored alongside deposit data credentials for the
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created validator accounts. An additional deposit_transaction.rlp file is stored under the account,
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containing a raw bytes eth1 transaction data ready to be used to submit a 32ETH deposit to the
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eth2 deposit contract for a validator. Passwords are stored in a separate directory for easy unlocking
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of the associated keystores by an account namespace.
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This direct keymanager can be customized via a keymanageropts.json file, which has the following
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JSON schema as its options:
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{
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direct_eip_version: string
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}
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Currently, the only supported value for `direct_eip_version` is "EIP-2335".
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*/
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package direct
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