Web3 Security Startup Blockaid Raises $33M in Funding

Bank of Japan Publishes Results of CBDC PoCThe Bank of Japan (BoJ) recently concluded the second phase of its central bank digital currency (CBDC) proof of concept (PoC) project, which began in April. The results of this phase were published on Monday, and they shed light on key aspects such as the comparison between account-based and token-based CBDCs and the management of holding limits for users with multiple accounts.Photo by Manuel Cosentino on UnsplashToken-based CBDCsThe experiments conducted by the central bank covered a wide range of topics. Among the most intriguing findings were the advantages and disadvantages of token-based CBDCs and how to effectively impose holding limits for users with multiple CBDC balances.Token-based CBDCs have garnered interest from various central banks, with some adopting the UTXO token model used by Bitcoin without the use of a distributed ledger. A UTXO or unspent transaction output, defines where a blockchain transaction starts and finishes. The Bank of Japan explored this model and analyzed its pros and cons.In the initial proof of concept, both account-based and token-based CBDCs were examined, considering scenarios where the central bank managed the ledger or shared it with intermediaries like banks. In the token-based model, fixed token denominations were used, similar to physical cash in countries like India, and a centralized ledger was employed. However, in the recent phase, the central bank utilized flexible value tokens similar to UTXO and shared ledger functions with intermediaries.The Bank of Japan favored the flexible value token model due to its ability to handle multiple requests simultaneously. However, it acknowledged that this model may require more technical resources compared to the account-based approach. Challenges may arise when implementing additional functions, such as holding limits, while maintaining optimal performance. The European Central Bank (ECB) also noted in a recent report that most payment providers are accustomed to account-based payments and would incur costs to adapt to token-based systems.Another significant aspect explored by the BoJ was how to impose holding limits when users have multiple CBDC balances through different intermediaries. The challenge lies in determining if the overall holding limit has been breached without compromising user privacy.Homomorphic encryptionOne possible solution discussed in the report is the use of homomorphic encryption, which enables computations to be performed on encrypted data without it first needing to be decrypted. That allows for the necessary checks without intermediaries accessing the specific data being checked. Although this solution may slightly increase processing time, it could introduce a higher risk of data inconsistencies.Alternatively, a simpler approach proposed by the central bank is to establish a per-account holding limit and a limit on the number of accounts a single user can hold, rather than imposing global limits. Ideally, users with multiple accounts would have a higher per-account holding limit compared to those with fewer accounts.Phase 3 underwayWith the next pilot phase already underway, the BoJ aims to test the end-to-end process flow and identify challenges related to integrating with external systems. Additionally, they are creating a CBDC Forum to gather input from the private sector, ensuring a collaborative approach to CBDC development.While investigation and research into CBDCs continues, the BoJ has said that it will make a final decision on CBDC implementation by 2026.

Bitget Introduces Innovative MPC Wallet for Enhanced SecurityBitget, the Seychelles-registered crypto derivatives platform, has unveiled a cutting-edge security and key management feature that could potentially be a game changer in terms of the way users safeguard their assets.Photo by Shubham’s Web3 on UnsplashIntroducing Multi-Party Computation (MPC)As confirmed via a press release on Tuesday, the Bitget team has introduced the Multi-Party Computation (MPC) wallet service to its Bitget Wallet, a relatively new solution in the realm of cryptocurrency security. This development comes on the heels of the launch of the account abstraction wallet service powered by the Ethereum scaling protocol Starknet in July.The introduction of the MPC wallet could well be a paradigm shift relative to crypto security as it leverages a distributed key generation mechanism, distributing multiple key shares to various locations under the control of different parties. This approach introduces a robust process, demanding that the owners of these distributed private key shares collectively sign and authorize transactions.Notably, the MPC wallet shatters the conventional industry practice of relying on users to store or memorize mnemonic phrases and private keys. In a departure from the current norm, this wallet streamlines the user experience by eliminating the need for mnemonics and instead implementing a password-based authentication method provided by Bitget, effectively eliminating the reliance on a single-point private key.Unlocking MPC technologyBitget’s vision with the MPC wallet is to deliver a user experience reminiscent of traditional Web2 products and services. From a technical standpoint, the MPC wallet is rooted in a threshold signature scheme, employing secure large prime numbers to underpin its security architecture.This consumer-oriented development mandates a minimum number for signature authorization, requiring two-thirds of the total key shares to complete the signature necessary for authorizing a transaction. Notably, the final key share finds secure refuge on a backup cloud server, contributing to a highly decentralized and secure ecosystem.Moreover, the MPC wallet offers a robust sharing mechanism that automatically invalidates key shares on older devices when new devices are integrated. This innovative feature substantially mitigates the risk of key shares being compromised on outdated or forgotten devices, reinforcing user confidence and security.Trending towards crypto self-custodyBitget’s introduction of the MPC wallet underscores the growing significance of self-custody in the cryptocurrency space. In the wake of high-profile failures and security breaches on centralized exchanges, such as FTX, self-custody has emerged as a paramount consideration for cryptocurrency enthusiasts and investors.As a testament to this trend, in March 2023, Ledger, a prominent hardware wallet manufacturer, secured $109 million in funding to bolster hardware production and develop novel products, underlining the increasing demand for secure and user-centric solutions in the crypto world.Bitget Wallet is a rebrand of the wallet produced by BitKeep, a Singapore-based project which Bitget acquired earlier this year. The crypto platform has been working on various initiatives that go some way towards reassuring customers. It had previously introduced proof of reserves reporting. While this system doesn’t provide the whole picture, proof of reserves does go some way in reassuring customers that their funds are still held by the platform and not loaned out or otherwise removed from the platform.

Ubisoft Joins Cronos as a Network ValidatorUbisoft, a world-renowned video game publisher, distributor, and creator, has entered into an exclusive partnership with Cronos, a prominent blockchain inter-operating with the Cosmos and Ethereum blockchain ecosystems. Cronos and its native CRO token were established by Singapore’s Crypto.com.According to a blog post published by Cronos Labs on Tuesday, the collaboration aims to explore the potential of blockchain technology, with Ubisoft becoming a new node validator on the Cronos network through its Strategic Innovation Lab.Photo by Ketut Subiyanto on Pexels27 node operatorsAs part of this initiative, Ubisoft joins a pool of 27 other node operators on the open-source Cronos blockchain. By doing so, the company aims to contribute to the network’s security and stability. Each node actively participates in the decentralized validation of transactions, ensuring the timely development of new blocks at intervals of 5 to 6 seconds.Cronos’ strategic approach focuses on collaborating with open-source validators and contributors who have a strong technical track record. Ubisoft’s expertise in developing immersive and engaging gaming experiences through the adoption of cutting-edge technologies aligns perfectly with Cronos’ vision. Notable existing contributors to the Cronos blockchain include Allnodes, Dora Factory, Blockdaemon, and Crypto.com, among others.Contributing towards governanceAs a validator, Ubisoft will play a vital role in the blockchain’s governance and the authorization of network updates. This partnership is a natural progression of the long-standing relationship between the two companies. Ubisoft has been actively involved in the Cronos Accelerator project as a venture mentor, fostering a strong foundation for their collaboration.Commenting on the partnership, Ken Timsit, Managing Director of Cronos Labs, revealed that Cronos Labs has had ongoing communications with the Ubisoft team for years. He emphasized Ubisoft’s unparalleled understanding of the blockchain sector’s potential and limitations, particularly in connecting gamers and creators.With Ubisoft’s involvement as a validator, Cronos blockchain is set to strengthen its security, enhance network governance, and open up new possibilities for the integration of gaming and blockchain technology. This strategic collaboration is expected to propel both companies towards innovative advancements in the ever-evolving world of blockchain and gaming.Positive developmentThe partnership between Ubisoft and Cronos holds promise for the future of blockchain technology in the gaming industry. It’s a shot in the arm for blockchain and Web3, given Ubisoft’s standing in the gaming industry, and considering that Ubisoft itself and many other headline firms in gaming seemed to have cooled their interest in the emerging space.In a recent interview, the Co-Chief Operating Officer of video gaming behemoth Sega, had described blockchain gaming projects as “boring” while outlining that the company was scaling back its interest in Web3 and blockchain.In this instance, however, as both Cronos Labs and Ubisoft leverage their expertise and resources, the potential for groundbreaking innovations and seamless integration between gaming and blockchain is within reach.This collaboration underscores the growing recognition of blockchain’s transformative power in revolutionizing various industries, including gaming. Together, Ubisoft and Cronos are poised to make significant contributions to shaping the future of blockchain technology and its applications in gaming.