BIP 44 master private key sign tx

I have this Bip44 path implemented

m / purpose' / coin_type' / account' / change / address_index

Is it possible to use the Master private key to sign all the tx
ie. Bitcoin TX, Etherum TX

or do I have to get the asset based private keys for each asset and sign the tx's ?

f4r4

Posted 2018-04-02T08:05:30.407

Reputation: 181

Answers

or I have to get the asset based private keys for each asset and sign the tx's ?

Yes, you can't sign transactions using the master private key. Sign each transaction using the derived private keys.

MCCCS

Posted 2018-04-02T08:05:30.407

Reputation: 5 827

Thanks for the answer, btw Is it possible to use m/0/k path and sign tx using the master private key ? – f4r4 – 2018-04-04T05:36:37.817

No, use this: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki#private-parent-key--private-child-key

– MCCCS – 2018-04-04T06:06:04.027

you can't sign tx with the parent node xprv which are extension keys, so you have to use the address keys (which don't have chaincode in the key, standard private key)

LIU YUE

Posted 2018-04-02T08:05:30.407

Reputation: 194