32 bytes of additional entropy which can be used to derive HD child nodes.
The child index at which this node is derived from its parent node
(identified via parentFingerprint
). Indexes less than 0x80000000
(2147483648
) use standard derivation, while indexes equal to or greater
than 0x80000000
use the "hardened" derivation algorithm. The maximum
index is 0xffffffff
(4294967295
).
In BIP32 HD derivation paths, hardened indexes are usually represented by
subtracting the hardened index offset (2147483648
) and appending '
to
the child index number. E.g. 0'
is a childIndex
of 2147483648
, and
2'
is a childIndex
of 2147483650
.
The depth of this node, between 0
(for master nodes) and 255
. E.g. for
a path of m/0/0
, depth
is 2
.
The 32-byte derivation result which is not a valid Secp256k1 private key. This is almost impossibly rare in a securely-random 32-byte Uint8Array, with a probability less than 1 in 2^127.
See validateSecp256k1PrivateKey
for details.
The first 4 bytes of the parent node's identifier. This is used to quickly
identify the parent node in data structures, but collisions can occur. To
resolve collisions, use the full parent identifer. (See
deriveHdPublicNodeIdentifier
for details.)
The full identifer of the parent node. This can be used to resolve
collisions where two possible parent nodes share a parentFingerprint
.
Since the full parentIdentifier
is not encoded in BIP32 HD keys, it
might be unknown.
Generated using TypeDoc
An invalid private node in a Hierarchical Deterministic (HD) key tree. This is almost impossibly rare in a securely-random 32-byte Uint8Array, with a probability less than 1 in 2^127.
If this occurs during derivation from a seed, the error should be handled and a different seed should be used. If this occurs during HD derivation, BIP32 standardizes the procedure for skipping the offending key material by using the next child index. I.e. the node ultimately derived at the invalid child index is a duplicate of the node derived at
index + 1
.