2/22/2024 0 Comments What does otp mean![]() ![]() Message Authentication Code, or MAC, is a crypto checksum for data transferred through insecure channels. | Read also: Identification, authentication, and authorization – what’s the difference What is MAC Thus, it is an especially good fit for cybersecurity purposes. Also, it’s impossible to decode the source information from the hash, what differs hashing from encryption. ![]() Hashing is used for a variety of purposes, among them is compression, cryptography, data indexing, checksum generation. So the hash value from the example would be a convenient tool for a computer to compare, identify or run calculations against data and files. Comparing a hash and the hash value is far easier for a computer than comparing original files. No matter what the volume of the source information is, be it a Moby-Dick or just a phone number, its hash value is always a string of symbols of a predetermined size. The result, known as a hash value (SHA-1, hex), would be this:Īt the same time, if we change the slightest detail in the source text, for example, remove quotation marks, the hash value will be completely different: ![]() If this passage was run through a hashing algorithm: Simply put - it is a math function that turns one value into another, or condenses data to a specific size. Hash is the mathematical algorithm used by HMAC-based one-time passwords. OTPs are the best protection against such common hacks as phishing, bruteforce, keyboard logging, man-in-the-middle attacks. These dynamic passwords, unlike the static ones, are hard to bypass or hack, since the hacker will need access to both something you have (OTP generating device, like cellphone or hardware token) and something you know (like pin code). One time or one-time password is usually a string of randomly generated digits that works for one login or transaction only. A table of contents for your convenience :įirst, let’s discuss the OTP meaning. ![]()
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