Security models

Ramestta provides three types of security models for developers to build their DApps upon:

1. Proof of Stake security

2. Plasma security

3. Hybrid (Plasma + PoS)

What follows is a description of each of these security models offered by Ramestta Network, and what would be the developer workflow for each with an example DApp.

Proof of Stake security​

A Proof of Stake layer for Tendermint is built on top of Heimdall & Bor. When two-thirds of the validators sign a checkpoint, it becomes part of the root chain.

We enable PoS on our platform by using Polygon staking management contracts and incentivized validators running Heimdall and Bor nodes. These implement the following features:

• The ability for anyone to stake RAMA tokens on the Polygon smart contract and join the system as a Validator

• Earn staking rewards for validating state transitions on Ramestta

The PoS mechanism also acts as a mitigation to the data unavailability problem for our sidechains in terms of Plasma.

The sidechain state is periodically finalized via checkpoints via our fast finality layer. Our fast finality helps us cement sidechain state. A chain compatible with EVM has fewer validators and a faster block time with high throughput. There is an emphasis on scalability over high levels of decentralization. Heimdall ensures that the final state commit is bulletproof and passes via a large validator set and hence high decentralization.

For developers

DApp developers can create a PoS security DApp simply by deploying their smart contract on Ramestta Chain. Because the account-based architecture enables an EVM-compatible sidechain, this is possible.

Plasma Security​

Ramestta Chain provides Plasma Guarantees for different atack scenarios.

• Chain operator (or in Ramestta, the Heimdall layer) is corrupt.

• The user is corrupt.

Ramestta Chain offers a solution for users whose plasma chain assets have been compromised, as they can initiate a mass exit using rootchain smart contracts. The use of plasma contracts provides added security to Shibarium, as they rely on Polygon's smart contracts and consensus mechanism. This means that the plasma chain can use simpler consensus mechanisms while still maintaining a high level of security comparable to the main chain. However, the overall security of Ramestta is still ultimately dependent on the security of Polygon and indirectly with Ethereum .

For developers

If you want to build DApps on Ramestta Chain with Plasma security guarantee, you must write custom predicates for your smart contracts. Basically, this means writing the external contracts that handle the dispute conditions determined by Ramestta plasma.

Hybrid​

The DApps on Ramestta Network can utilize either pure Plasma security or pure Proof of Stake security, or a hybrid approach that combines both. Developers can choose to implement a hybrid approach to provide both plasma and proof of stake guarantees in specific workflows. For instance, a gaming DApp that utilizes its own erc20 token to reward players can deploy game logic smart contracts directly on the Ramestta sidechain, ensuring Proof of Stake security. At the same time, Erc20 token transfers can be secured with Plasma guarantees and fraud proofs that are embedded in Ramestta's rootchain contracts.