December 2018
Beginner to intermediate
564 pages
17h 34m
English
Content preview from Blockchain Developer's Guide
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Child key derivation
HD wallets extensively use the Child Key derivation (CKD) function to create child keys from the parent keys. Keys are derived using a one-way hash function using the following elements:
- Parent key
- Chain code which works as a seed, 256-bits
- Index number, 32-bits
There are various ways in which child keys can be generated from already present keys; the following are the key derivation sequences:
- Generation of private child key from private parent key
- Generation of public child key from public parent key
- Generation of public child key from private parent key
Let's discuss each of the previously mentioned sequences in detail.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.