Blockchain Wallet Two-Factor Authentication
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Solution Overview
Problem
Current two-factor authentication methods, such as biometric authentication, are susceptible to data breaches, expensive, and invasive, while traditional username and password combinations are easily compromised, lacking sufficient security for digital asset management systems like cryptocurrencies.
Innovation Solution
Implementing a blockchain wallet-based two-factor authentication system that utilizes a private key associated with the user's wallet for secure authentication, where the user signs a message with their private key to verify identity, enhancing security and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional username and password authentication is used, then ease of operation is improved, but security is worsened
Solution Approach 1:
The authentication system is segmented into two independent factors: something the user knows (password) and something the user possesses (biometric data stored on a secure device). This segmentation ensures that compromise of one factor does not necessarily lead to complete system compromise, thus improving security while maintaining ease of operation through the simple two-step process.
Solution Approach 2:
A biometric authentication device acts as an intermediary between the user and the authentication system. The device captures biometric data, processes it locally, and provides authentication verification to the server without exposing raw biometric data. This intermediary layer enhances security by preventing direct access to sensitive biometric information while maintaining user convenience.
2Reliability
If biometric authentication is implemented, then security is improved, but cost and invasiveness are worsened
Solution Approach 1:
The biometric authentication device performs self-service by capturing, processing, and verifying biometric data locally without requiring complex centralized biometric databases or continuous server-side processing. The device maintains authentication credentials locally and independently verifies user identity, reducing overall system complexity while maintaining high security standards.
3Speed
If biometric data is stored centrally, then authentication speed is improved, but vulnerability to data breaches is worsened
Solution Approach 1:
The system extracts and removes sensitive biometric data from centralized storage and places it locally on individual authentication devices. Each user's biometric data is stored only on their personal device, eliminating the centralized database that would be vulnerable to breaches. Authentication speed is maintained through local processing and verification on the device itself.
Data Source
AI summary
Methods, systems, and devices for using a blockchain wallet for two-factor authentication are described. A custodial token platform implements a two-factor authentication process using a wallet to facilitate verifying a user identity accessing an application or service. The platform receives, from a client application on a user device, an authentication request that is associated with a first user account. The platform transmits a response indicating that a wallet authentication procedure is enabled and the response may include a wallet address. The platform receives a challenge request that includes the wallet address. The platform transmits a challenge response that includes a data payload to be signed using a private key associated with the wallet address. The platform receives a signed response message. The platform verifies that the signed response message is validly signed, and the platform transmits an indication that the signed response message is validly signed.