NotVault     |     The Self-Sovereignty SDK

The NotVault SDK is an open-source toolset designed for the swift and secure creation of self-sovereign data workflows. Its functionality spans multiple use cases, including confidential commerce and payments, token transfers, file management, and the application of verifiable credentials. With a focus on streamlining the incorporation of Zero Knowledge Proof (ZKP) technology, NotVault emphasises best practices for encryption, decentralisation, and peer-to-peer operations in all data exchanges.

Core Principles

NotVault operates on three fundamental principles:

• Peer-to-Peer: To mitigate risks associated with a single point of failure.
• Encryption: To maintain confidentiality at all times.
• Zero Knowledge Proofs: To minimise data footprints during communication.

The functionality of NotVault mirrors that of a wallet, facilitating the private linkage of a contact ID (such as an email) to a user's wallet. Additionally, it generates a new public/private key pair used for data encryption and signing within the ecosystem. This system negates the need to access the keys of the Ethereum wallet (typically inaccessible via API) and provides a more user-friendly method of connecting with other identities.

Key Features

Developers leveraging NotVault can access a plethora of features including:

• Wallet: Safeguards encrypted keys and metadata.
• Credentials: Facilitates the generation and verification of zkSNARK credential proofs.
• Vault: Manages confidential token balances and transfers.
• Files: Enables self-sovereign and encrypted file storage capability through IPFS.
• Commercial Deals: Supports the lifecycle management of transactional or contractual agreements, including their financial settlement. It offers self-custody escrows of token payment amounts via a peer-to-peer platform.
• Service Bus: Provides a confidential messaging service, ensuring integrity of timestamp, source, and underlying message using a zkSNARK. Harness the power of NotVault SDK to expedite the development of secure, decentralised applications and services.

Information

For more detailed information please go to our GITBOOK.

Contracts

Deployment Costs

	GOERLI	SEPOLIA	Hedera Testnet	Base Goerli	Deployment Gas
Wallet	0x5F4...	0x4b8...	0x756...	0xF97...	1,162,239
Vault	0x4C1...	0x38A...	0xd80...	0x9d6...	5,041,627
Deal	0xe8F...	0x523...	0x38c...	0xFCC...	4,328,511
Oracle	0xa94...	0x8b2...	0xeEB...	0xbbf...	693,393
ServiceBus	0x989...	0x5A9...	0xCe0...	0x24A...	735,119

Method Costs

	Methods	Approx Gas	Gas Limit
Wallet	registerKeys	684,397	700,000
Wallet	setValue	137,643	200,000
Wallet	setFileIndex	90,313	100,000
Wallet	setCredentialIndex	90,313	100,000
Vault	deposit	552,191	600,000
Vault	withdraw	374,927	400,000
Vault	createRequest	1,152,414	1,200,000
Vault	acceptRequest	618,821	650,000

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Building

In order to compile and run the smart contract code.

Prerequisites

The compilation and development environment necessary are:

Rust

A fast and memory efficient language used by the circom compiler.

https://www.rust-lang.org

curl --proto '=https' --tlsv1.2 https://sh.rustup.rs -sSf | sh

Circom 2.0

The zero knowledge circuit development environment.

https://docs.circom.io

git clone https://github.com/iden3/circom.git
cd circom
cargo build --release
cargo install --path circom

SnarkJS

The zkSnark environment.

https://github.com/iden3/snarkjs

npm install -g snarkjs

Once the environment is correctly setup, you can proceed with compiling the cirtuits.

Build the circuits

cd circuits
sh compile.sh
cd ...

Run the tests

npx hardhat test

License

MIT License.