Redefining custody, Big Wallet provides you with complete control over your assets. Transparent audits, open-source algorithms, and multi-party governance are intended to protect your assets while enhancing the operational efficiency of teams and businesses.
First-of-its-kind Security: Farewell to a Single Point of Failure on Private Key
Our custom multi-layer security technology uses leading MPC cryptography and hardware isolation to ensure private keys are never exposed. Decentralization of private keys is achieved in the form of key shards.
Our MPC algorithm is audited by Kudelski Security while regular white-box audits and penetration tests are carried out by SlowMist on our system to address potential vulnerabilities and to ensure the highest degree of security. In addition, we are certified to ISO 27001 standard and are in the midst of obtaining SOC 2 Type II certification.
Open source code is the simplest method of establishing trust and credibility. As a result, our code is readily available for review by any developer to ensure that we live up to our promise.
Learn moreWe created the Big Wallet Cryptography Basic Algorithm Library suite in C++ to make it easier to develop upper-layer cryptographic protocols, which includes the Big Number Computation Library, the Abstract Elliptic Curve Algorithm Library, the Homomorphic Encryption Algorithm Library, the Secret Sharing Scheme Algorithm Library, and the Zero-Knowledge Proof Protocol Algorithm Library.
TSS-RSA is a threshold signature algorithm for RSA that we've implemented. It has capabilities for generating key shards, signing by distributed keys, verifying signature shards, combining and verifying shards' signatures. To propel the algorithm's use cases in the Arweave ecosystem, we have been actively collaborating with the project’s developers.
Big Wallet latest feature launches and upgrades
View Roadmap
Enjoy a highly secured self-custody of your assets right away (no application required), made available for both free and paid plans.
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Big Wallet Web3 Suite includes Enterprise Web3 Browser Extension, big wallet App, and big wallet Web3 API.
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Big Wallet offers a free Basic Plan. For more advanced needs, we have a tiered pricing model. Find out more by sending an email toinfo@bigwallet.jp.
Download the App and begin using it right away. You no longer have to go through the arduous process of trial registration. You can enroll your organization and begin using big wallet within 5 minutes.
Centralized financial systems, over-the-counter trading, brokerage firms, exchanges, cryptocurrency funds, and the Web3 initiative are just a few of the many types of customers Big Wallet serves.
In general, private key sharding is the process of splitting one complete private key into several parts, each a shard of the private key. This greatly eliminates concerns about loss of assets due to loss or theft of the entire private key. Big Wallet private key sharding uses the MPC algorithm to generate a shard of the key before building the wallet, and he then uses the MPC algorithm to compute the signature at transaction time. In contrast to common private key sharding, the MPC algorithm generates multiple key fragments, with the original private key never exposed throughout the process, thus increasing security.
Big Wallet supports 11 native coins and hundreds of tokens including BTC and ETH. Our Web3 wallet is compatible with all EVM chains and non-EVM chains such as Solana and NEAR that will be available soon.more
Big Wallet's MPC signature algorithm implements ECDSA, EdDSA, and BLS signature algorithms, covering more than 99% of public blockchains. However, the MultiSig contract is restricted to certain EVM chains and incurs a higher gas fee. big wallet MPC MultiSig, on the other hand, is more secure and effective while less expensive than a typical MultiSig contract.
Secure Multi-Party Computation, or MPC for short, is also known as SMPC. Learn more about it on ourMPC 101.MPC ensures that you can use it while remaining invisible throughout the entire process, from private key generation to usage and storage. Big Wallet utilizes MPC to transform a single private key into distributed private key shards, effectively eliminating the risk of a single point of failure of a private key, while allowing multiple individuals on a team to co-manage assets.
Big Wallet is a decentralized MPC MultiSig solution provider in which users own all private key shards from the beginning. As a result, in the unlikely event big wallet goes bankrupt, users can still use theoffline private key recovery toolto recover the original private key along with all key shards. Users can import the original private key into any decentralized wallet and gain access to their funds again.
All transactions are under your control thanks to the simplicity of the interface, security and robust policy engine.
ALL RIGHTS RESERVED © 2022 Big Wallet | Privacy Policy | User Agreement
Redefining custody, Big Wallet provides you with complete control over your assets. Transparent audits, open-source algorithms, and multi-party governance are intended to protect your assets while enhancing the operational efficiency of teams and businesses.
First-of-its-kind Security: Farewell to a Single Point of Failure on Private Key
Our custom multi-layer security technology uses leading MPC cryptography and hardware isolation to ensure private keys are never exposed. Decentralization of private keys is achieved in the form of key shards.
Our MPC algorithm is audited by Kudelski Security while regular white-box audits and penetration tests are carried out by SlowMist on our system to address potential vulnerabilities and to ensure the highest degree of security. In addition, we are certified to ISO 27001 standard and are in the midst of obtaining SOC 2 Type II certification.
To All Developers: Don't Trust, Always Verify
Open source code is the simplest method of establishing trust and credibility. As a result, our code is readily available for review by any developer to ensure that we live up to our promise.
We created the Big Wallet Cryptography Basic Algorithm Library suite in C++ to make it easier to develop upper-layer cryptographic protocols, which includes the Big Number Computation Library, the Abstract Elliptic Curve Algorithm Library, the Homomorphic Encryption Algorithm Library, the Secret Sharing Scheme Algorithm Library, and the Zero-Knowledge Proof Protocol Algorithm Library.
TSS-RSA is a threshold signature algorithm for RSA that we've implemented. It has capabilities for generating key shards, signing by distributed keys, verifying signature shards, combining and verifying shards' signatures. To propel the algorithm's use cases in the Arweave ecosystem, we have been actively collaborating with the project’s developers.
Big Wallet latest feature launches and upgrades
Enjoy a highly secured self-custody of your assets right away (no application required), made available for both free and paid plans.
Big Wallet Web3 Suite includes Enterprise Web3 Browser Extension, big wallet App, and big wallet Web3 API.
Big Wallet offers a free Basic Plan. For more advanced needs, we have a tiered pricing model. Find out more by sending an email toinfo@bigwallet.jp.
Download the App and begin using it right away. You no longer have to go through the arduous process of trial registration. You can enroll your organization and begin using big wallet within 5 minutes.
Centralized financial systems, over-the-counter trading, brokerage firms, exchanges, cryptocurrency funds, and the Web3 initiative are just a few of the many types of customers Big Wallet serves.
In general, private key sharding is the process of splitting one complete private key into several parts, each a shard of the private key. This greatly eliminates concerns about loss of assets due to loss or theft of the entire private key. Big Wallet private key sharding uses the MPC algorithm to generate a shard of the key before building the wallet, and he then uses the MPC algorithm to compute the signature at transaction time. In contrast to common private key sharding, the MPC algorithm generates multiple key fragments, with the original private key never exposed throughout the process, thus increasing security.
Big Wallet supports 11 native coins and hundreds of tokens including BTC and ETH. Our Web3 wallet is compatible with all EVM chains and non-EVM chains such as Solana and NEAR that will be available soon.more
Big Wallet's MPC signature algorithm implements ECDSA, EdDSA, and BLS signature algorithms, covering more than 99% of public blockchains. However, the MultiSig contract is restricted to certain EVM chains and incurs a higher gas fee. big wallet MPC MultiSig, on the other hand, is more secure and effective while less expensive than a typical MultiSig contract.
Secure Multi-Party Computation, or MPC for short, is also known as SMPC. Learn more about it on ourMPC 101.MPC ensures that you can use it while remaining invisible throughout the entire process, from private key generation to usage and storage. Big Wallet utilizes MPC to transform a single private key into distributed private key shards, effectively eliminating the risk of a single point of failure of a private key, while allowing multiple individuals on a team to co-manage assets.
Big Wallet is a decentralized MPC MultiSig solution provider in which users own all private key shards from the beginning. As a result, in the unlikely event big wallet goes bankrupt, users can still use theoffline private key recovery toolto recover the original private key along with all key shards. Users can import the original private key into any decentralized wallet and gain access to their funds again.
All transactions are under your control thanks to the simplicity of the interface, security and robust policy engine.
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ALL RIGHTS RESERVED © 2023 Big Wallet | Privacy Policy | User Agreement
