A zkopru account manages both of the layer-1 and layer-2 key pairs. First of all, the account has an Ethereum account from a randomly generated private key. This is used for interactions on the layer-1. Second, Zkopru wallet creates a Babyjubjub private key and public key set from the Ethereum account's private key. This Babyjubjub keyset is used for the EdDSA and encrypted memo field on the layer-2.
Last updated
Key
Size
How to get
Where to use
Master seed
32 byte
Randomly generated
Recover keys
Ethereum private key
32 byte
Derived from master seed with BIP39
Layer1 ECDSA
Ethereum public address
20 byte
Derived from the private key
Layer 1 interactions
Babyjubjub private key
254 bit
Derived from Ethereum private key
Create EdDSA to spend UTXO
Babyjubjub public key
(254 bit, 254 bit)
Derived from Babyjubjub private key
Proving ownership of a UTXO
