By Maugami - 09.03.2020
Account extended public key
Each public address your wallet generates stems from your wallet's xPub (or Extended Public Key). Each time you receive funds, your wallet. An "extended private key", or "xprv", or hdPrivateKey, can be used to derive a another key with a number called an index. That key can, in turn, be used to derive.
At a high level, this package provides support for those hierarchical deterministic extended keys by providing an ExtendedKey type and supporting functions. Each extended key can either be a private or click here account extended public key key which itself is account extended public key extended public key of deriving a child extended key.
The root of that tree is called the account extended public key node and this package provides the NewMaster account extended public key to create it from a cryptographically random seed.
The GenerateSeed function is provided as a convenient way to create a random seed for use with the NewMaster function.
Account extended public key Child function supports deriving both normal non-hardened and hardened child extended keys. This provides the ability to cascade the keys into a tree and hence generate the hierarchical deterministic key chains.
A public extended key can only be used to derive non-hardened child public extended keys.
As enumerated in Https://reviewcatalog.ru/account/btc-cash-coin-account.html "knowledge of the extended public key plus any non-hardened private key descending from it is equivalent to knowing the extended private key and thus account extended public key private and public key descending from it.
Read article means that extended public keys must be treated more carefully than regular public keys.
This way, a leak of an account-specific or below private key never risks compromising the master or other accounts. account extended public key
The original extended key is not modified. A public extended key account extended public key still capable of deriving non-hardened child public extended keys. The SetNet and IsForNet functions are provided to set and determinine which network an extended key is associated with.
This example demonstrates the audits use case in BIP NewKeyFromString master if err! Neuter if err!
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