Abstract
One-time password (OTP) systems, or one-time passwords, are an authentication method in which the user is provided with a password that is active only for one login session or transaction in an information system. Currently, the systems are not implemented in their pure form, but are one of the components in multi-factor authentication systems. Despite its widespread use in the financial sector, a one-time password does not guarantee secure login authentication.
Highlights
The human factor continues to be one of the fundamental threats in the modern information system model
Despite the fact that multifactor authentication technologies should increase the authenticity of user authentication in the information system, attackers deceiving the One-time password (OTP) system password received full access to the system, the attack scheme is shown in Figure 1 [4]
OTP systems in their pure form, with rare exceptions, have left the market, but at the same time they are widely used as a second method of authentication in multi-factor authentication systems
Summary
The human factor continues to be one of the fundamental threats in the modern information system model. The traditional mechanism for ensuring password strength in an organization is the organization's password policy, which involves a number of organizational and technical measures designed to strengthen password protection. These methods include applying requirements for complex password complexity, applying requirements for password uniqueness, determining the password lifetime, and so on. The process is similar to the technology of using a classic cipher block, in which a new encoding sequence is used for each encryption transaction. One Time Password ) and is described in RFC 2289 .OTP ( One Time Password ) technology allows the user to use only one permanent password to log in to the information system [1]
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