Recently, the Fireblocks team disclosed a vulnerability in the ECDSA threshold signature protocol GG18/GG20 in the paper Practical Key-Extraction Attacks in Leading MPC Wallets (CVE-2023-33241). By exploiting this vulnerability, a malicious participant can steal other participants’ key share with only 16 signatures. This article describes the details of the vulnerability with two participants, Alice and Bob, where […]
Cryptocurrency wallets, custodial services and other storage solutions can be divided to the three major groups, depending on the level of access by the owners of the digital assets. Wallet providers may have different operation structures, but in general we can call them Custodial, Non-custodial, and Semi-custodial (or mixed-custodial) wallets. Also, some wallets may support […]
Wallets with private keys are a popular choice as they have been introduced to the community since the beginning of the crypto industry. Most of the traditional wallets existing on the market have private keys, having the same critical vulnerability rooted in the underlying digital signature technology based on asymmetric encryption.
In this article we will review the hardware (cold) wallets, their technical implementation and user experience, special features and common problems, and compare them with Secure MPC-based Bitizen wallet.
Wallets with private keys are a popular choice as they have been introduced to the community since the beginning of the crypto industry. Most of the traditional wallets existing on the market have private keys, having the same critical vulnerability rooted in the underlying digital signature technology based on asymmetric encryption.
Let’s talk about Web3, the global shift in the digital space, and changes that we really need.
In this article we would like to introduce types of popular existing traditional wallets and compare them with the Web3 wallet solution introduced by the Bitizen team.
Multi-signature refers to a digital signature process that enables multiple users to sign a single transaction on behalf of the group, and each multi-signature address is associated with several private keys. MPC-Based wallets do not have private keys; instead, they have multiple independent key shares distributed among several parties and that are used to jointly […]
People around the world are wondering what the new hype about Web3 is, what it is and how to get in. For many, Web3 is a new mysterious and exclusive part of the Internet where a closed community of geeks is creating a space with technologies and software that are hard to understand.
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