Analysis of methods for generating one-time passwords and a high degree of randomness of generated passwords

Authentication methods are considered. Generating “something” (e. g., passwords) is a significant part of this process. When checking the resistance of generated passwords to any attacks (for example, a brute-force attack), the entropy of the password is measured. Existing methods for generating random numbers in widely used programming languages provide sufficient values for one-time passwords. But when using these generators, they need to be internally updated based on random values.