If I want to use java to implement offline signature, where can I find the information?

Question

Where is the process of iota private key, address generation and signature?

Answer 1

What you want to use is the java binding for the rust client:

https://github.com/iotaledger/iota.rs/tree/dev/bindings/java

Then you make a Client object, then run the function Client.get_addresses(). Also in the docs.iota.org it reccomends to use stronghold for and account type ownership for security.

We strongly recommend to use official wallet.rs library together with stronghold.rs enclave for value-based transfers. This combination incorporates the best security practices while dealing with seeds, related addresses and UTXO.

IOTA uses the BIP32 and BIP44 standard. Here is a python example, the functions in java should have the same names,

import os import iota_client # Get the seed from environment variableIOTA_SEED_SECRET = os.getenv('IOTA_SEED_SECRET') if not IOTA_SEED_SECRET: raise Exception("Please define environment variable called `IOTA_SEED_SECRET`") client = iota_client.Client() address_changed_list = client.get_addresses( seed=IOTA_SEED_SECRET, account_index=0, input_range_begin=0, input_range_end=10, get_all=True ) print(address_changed_list)