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Password strength is a measure of the effectiveness of a password against guessing or brute-force attacks. In its usual form, it estimates how many trials an attacker who does not have direct access to the password would need, on average, to guess it correctly.
Rainbow table. A rainbow table is a precomputed table for caching the outputs of a cryptographic hash function, usually for cracking password hashes. Passwords are typically stored not in plain text form, but as hash values. If such a database of hashed passwords falls into the hands of attackers, they can use a precomputed rainbow table to ...
Password cracking. In cryptanalysis and computer security, password cracking is the process of guessing passwords [ 1] protecting a computer system. A common approach ( brute-force attack) is to repeatedly try guesses for the password and to check them against an available cryptographic hash of the password. [ 2]
Create a strong password. • Use unique words - Don't use obvious words like "password". • Have 12 or more characters - Longer passwords are more secure. • Avoid sequences or repeated characters - Don't use adjacent characters on your keyboard (QWERTY). • Use a different password for each site - Otherwise, if someone acquires one ...
A brute-force attack is a cryptanalytic attack that can, in theory, be used to attempt to decrypt any encrypted data (except for data encrypted in an information-theoretically secure manner). [ 2] Such an attack might be used when it is not possible to take advantage of other weaknesses in an encryption system (if any exist) that would make the ...
A munged password (pronounced / ˈmʌndʒ /) refers to the practice of creating a password with common replacement strategies. [ 1] For example, replacing 'S' with '$' or '5' in a password. Alternatively, it can be seen as an application of Leet speak. It can lead to creation of secure passwords which are easy to remember [ 2], although they ...
Passphrase. A passphrase is a sequence of words or other text used to control access to a computer system, program or data. It is similar to a password in usage, but a passphrase is generally longer for added security. Passphrases are often used to control both access to, and the operation of, cryptographic programs and systems, especially ...
The largest-ever data breach, which took place this past winter, resulted in the exposure of more than 3.2 billion unique email addresses and passwords.Yep, that’s billions with a ‘b.’ IBM ...