feat: generate secp256k1 private key

[leovct]

Description

Main feature

Generate an Secp256k1 nodekey from a private key (in hex format).

polycli nodekey --private-key 2a4ae8c4c250917781d38d95dafbb0abe87ae2c9aea02ed7c7524685358e49c2 --key-type secp256k1 | jq

{
  "address": "99AA9FC116C1E5E741E9EC18BD1FD232130A5C44",
  "pub_key": {
    "type": "comet/PubKeySecp256k1Uncompressed",
    "value": "BBNYN0nMJsgo0Fp3kVW85PRGBNe7Gdz1XBFuTWQ7D8FnKRb2JYO3i3FK2UiA5+gTSxYu1K66KdYjQYP1mOkH09g="
  },
  "priv_key": {
    "type": "comet/PrivKeySecp256k1Uncompressed",
    "value": "OP72E0D7GEi/4VySpolVudLW7uPJm+6PWEtFKJmvp1M="
  }
}

Most of the logic has been copy/pasted from 0xPolygon/cometbft's fork (scep256k1 package). Indeed, it's not possible to import the package yet because go.mod declares its path as github.com/cometbft/cometbft instead of github.com/0xpolygon/cometbft. Unfortunately, the logic will need to be updated to support new versions. For now, we support the latest polygon's cometbft relase.

Minor

Allow passing an hex encoded private key from the command line to generate a node key.

polycli nodekey --private-key 2a4ae8c4c250917781d38d95dafbb0abe87ae2c9aea02ed7c7524685358e49c2 | jq

{
  "PublicKey": "93e8717f46b146ebfb99159eb13a5d044c191998656c8b79007b16051bb1ff762d09884e43783d898dd47f6220af040206cabbd45c9a26bb278a522c3d538a1f",
  "PrivateKey": "2a4ae8c4c250917781d38d95dafbb0abe87ae2c9aea02ed7c7524685358e49c2",
  "ENR": "enode://93e8717f46b146ebfb99159eb13a5d044c191998656c8b79007b16051bb1ff762d09884e43783d898dd47f6220af040206cabbd45c9a26bb278a522c3d538a1f@0.0.0.0:30303?discport=0"
}

Jira / Linear Tickets

x

Testing

x

[ARR552]

I think It would be nice to add unit tests to this functions

[rebelArtists]

lgtm, looks need to rebase tho