Blockchain Release: HIP 29 and HIP 30 support

The team has a new release tagged 2021.05.04.2 which adds support for HIP-29, HIP-30, and various bug fixes. This is a required upgrade for all miners and will be automatic for all Hotspots using the Helium firmware when we GA.

miner#757: Switch to threshold cryptography

As mentioned in HIP-30, this adds support for erlang-tc in miner to start using BLS12-381 keys for HoneyBadgerBFT consensus and DKG.

miner#756: Update blockchain-core and snapshot to 830161

The team updated miner dependencies and the snapshot block to 830161 to allow newly onboarded hotspots to sync faster to the current blockchain head block.

miner#755: Make print_keys independent of running miner

This fixes the miner print_keys CLI to avoid a trailing ok and removes a hardcoded path dependency.

blockchain-core#793: Fix to_json for payment-v2 memos

The team noticed that previously added memo support for payment_v2 transactions was not updating the JSON for use in the API correctly. This has been fixed.

hbbft#66: Add support for threshold cryptography

As mentioned in HIP-30, this adds support for running the HoneyBadgerBFT protocol over the BLS12-381 curve to generate ephemeral keys used by the consensus group to make blocks.

dkg#36: Add support for threshold cryptography

As mentioned in HIP-30, this adds support for running the distributed key generation protocol over the BLS12-381 curve to generate ephemeral keys used by the consensus group to make blocks.

libp2p-crypto#10: Multisig support

As mentioned in HIP-29, this adds support for multi-signature keys.

Plan

We have been beta testing 2021.05.04.2 since May 4th, 2021 5:30 PM PT. Current ETA for GA is 1:00 PM PT, May 5th, 2021.