derive
abstract fun deriveHd44ChildKey(secretSeed: ByteArray, purpose: Long, coinType: Long, account: Long, change: Boolean, index: Int): Pair<ByteArray, String>
This function calculates the BIP44 key from the specified path. BIP44 requires that purpose, coinType and account are "hardened". This function will automatically harden those parameters if you pass unhardened values. Therefore this function cannot be used for generalized (non-BIP44) child key derivation.