Yuzo Iano 1[0000-0002-9843-9761], Leandro Lima 2[0000-0002-9254-2063] and Gabriel Kemmer 3[0009-0032-5544-0353]
Security has been an issue since computers were invented. “How to exchange information securely through the internet” has been one of the most researched topics since the first byte was sent and received. With that in mind, You Secure is a program purely designed to protect you wherever you authenticate. It combines technologies such as FIDO2, cryptography, and blockchain to create more than four layers of protection. The process is distributed across multiple servers, so even if there is a man-in-the-middle attack, your credentials would not be compromised. The system is designed to use your cellphone or notebook to generate private and public keys, linked to facial and biometric identification. Blockchain is used to store part of your data, enabling decentralized validation, with separate servers managing all of these security protocols, providing ultimate security for the user.
Keywords: security; authentication; passwordless; blockchain; cryptography; decentralized authentication; multi-factor authentication (MFA); biometric authentication; public-key infrastructure (PKI); man-in-the-middle protection; WebAuthn; device-based authentication; encryption; privacy