A table of randomly arranged numbers that, when used for authentication, is issued uniquely to each user. The system requests a different coordinate position each session, and the user enters the number at that position as their one-time password. Because the coordinates change every time, intercepted passwords cannot be reused, offering protection against eavesdropping and replay attacks. It is a form of knowledge-based (possession-based) authentication.

Past questions testing this term · 1 questions

• 2014h26a #51次の認証方式の特徴に関する記述として，適切なものはどれか。 - 利用者にはあらかじめ乱数表が渡されている。 - 乱数表に印刷された数字は利用者ごとに異なる。 -…