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Time-based one-time password (TOTP) is a computer algorithm that generates a one-time password (OTP) using the current time as a source of uniqueness. As an extension of the HMAC-based one-time password algorithm (HOTP), it has been adopted as Internet Engineering Task Force (IETF) standard RFC 6238 .
The easier a password is for the owner to remember generally means it will be easier for an attacker to guess. [12] However, passwords that are difficult to remember may also reduce the security of a system because (a) users might need to write down or electronically store the password, (b) users will need frequent password resets and (c) users are more likely to re-use the same password ...
The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. [5] [6] [7] The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; [8] the pattern of position detection was found and determined by applying the least-used ratio (1:1:3 ...
Sometimes new or unregistered users are prevented from editing pages that are common targets of vandalism (just as this page is protected, and only users with an account can edit it). Also, bots can mistake even good-faith IP address edits for vandalism. For these reasons, edits under a user name tend to be more successful.
In cryptography, a message authentication code (MAC), sometimes known as an authentication tag, is a short piece of information used for authenticating and integrity-checking a message.
Facebook login/signup screen. Each registered user on Facebook has a personal profile that shows their posts and content. [243] The format of individual user pages was revamped in September 2011 and became known as "Timeline", a chronological feed of a user's stories, [244] [245] including status updates, photos, interactions with apps and ...
Software (e.g., Crystal Reports, Microsoft Excel, PHP, Perl, Python, Ruby) users can submit CRUD (Create, Read, Update, Delete) queries to a data source by establishing a connection to the DSN. ASP ( VBScript ) code to open a DSN connection might look like the following: