Skip to main content

VM Account Abstraction

VM Account Abstraction is a feature that simplifies the management of accounts across different virtual machines (VMs) integrated within the AstroMesh blockchain ecosystem. By deriving accounts for various VMs from a single Cosmos account, users can seamlessly interact with different VMs without managing multiple accounts. This document provides details on how accounts are derived for Cosmos, EVM, and SVM, and the use of Plane native denominations.

Flux Cosmos Account​

info

Cosmos Account uses Ethereum Secp256k1 curve so it's natively compatible with Flux EVM.

The Cosmos account is the primary account format used within the Flux Astromesh ecosystem. It is a 22-byte account represented in bech32 format with the prefix lux.

Format: 22-byte bech32
Prefix: lux
Cosmos Account: lux154evaeem8veltk78y6athyzya6wwzhvu33wzpl

Flux WasmVM Account​

Makes use of native Cosmos account

Format: 22-byte bech32
Prefix: lux
WasmVM Account: lux154evaeem8veltk78y6athyzya6wwzhvu33wzpl

Flux EVM Account​

The EVM account has exact equivalent bytes value derived from the Cosmos account but is represented in the Ethereum hex format. This allows users to interact with Ethereum-based applications and smart contracts using the same underlying account.

Format: Ethereum hex
Derivation: Directly from the Cosmos account
Example:
Cosmos Account: lux154evaeem8veltk78y6athyzya6wwzhvu33wzpl
Flux EVM Account: 0xa572cee73b3b33f5dbc726babb9044ee9ce15d9c

Flux SVM Account​

Since the Solana Sealevel VM requires a 32-byte account, we use account link mechanism to allow user to authorize SVM transaction using secp256k1 Cosmos keypair.

Account linking flow

  • Generate Solana ed25519 keypair for new accounts.
  • Use Cosmos secp256k1 keypair to sign transaction to create and fund new SVM accounts via SVM System Program Instruction.
  • Once SVM accounts are created, send flux.svm.v1beta1.MsgLinkSVMAccount transaction with ed25519 signatures for linking verification.
  • From here, users can use Cosmos keypair to sign on behalf of linked SVM account.
Format: 32-byte base58
Derivation: Using account link mechanism
Example:
Cosmos Account: lux154evaeem8veltk78y6athyzya6wwzhvu33wzpl
SVM Account: 288X1LxTA1VhRQQM1igEnhnyT3mXiw51CBrToZg2qvgM

Plane Native Denomination​

Astromesh uses a 1:1 conversion rate to swap from LUX to the native gas tokens of Flux EVM and SVM. These are shadow tokens, meaning they are not transferable outside of the VM. The primary purpose of these shadow gas tokens is to ensure full compatibility with all integrated VMs and maintain the usability of dApps that require native gas tokens.

1 LUX = 1 shadow ETH
1 LUX = 1 shadow SOL

Summary​

VM Account Abstraction in Astromesh allows users to manage a single account across multiple VMs, including Cosmos, EVM, and SVM. By deriving accounts from a common Cosmos account and using shadow gas tokens, users can interact seamlessly with different virtual machines while maintaining compatibility and usability for a wide range of dApps.