H04L 29/06(2006.01)(57) ABSTRACT H04L 9/32(2006.01) G06F2L/00(2006.01) Secure
authentication protocols, particularly well-suited for G06F 7/04(2006.01) use in …

Two-factor authentication (2FA) provides improved protection, since users are prompted to
provide something they know and something they have. This method delivers a higher-level …

Owing to the introduction of blockchain (BC) technology, a decentralized identity (DID)
model has been proposed to replace conventional identity models based on centralized …

Lamport's one-time password (OTP) was originally proposed to address the weaknesses of
a simple password system. However, it has been widely used to design key management …

Static password authentication has security drawbacks. In two‐factor authentication (2FA,)
each user carries a device, called token, to generate passwords that are valid only one time …

The use of information systems is a solutions to support the operations of the institution. In
order to access information systems in accordance with their access rights, usually the user …

Internet-banking is a crucial service offered by financial Institutions and has gained
popularity at a high pace. Owing to the increasing usage of this service, it is being frequently …

Abstract Systems and methods for One-Time Password (OTP) authentication with infinite
nested hash chains are described. In one aspect, a methodology includes a client device …

Nowadays one-time passwords are used in a lot of areas of information technologies
including e-commerce. A few vulnerabilities in authentication protocols based on one-time …

The low transaction throughput, high transaction latency, and unfriendly micropayment are
the main obstacles hindering Bitcoin use in time-sensitive environments. To mitigate these …