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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 ...
Key stretching. In cryptography, key stretching techniques are used to make a possibly weak key, typically a password or passphrase, more secure against a brute-force attack by increasing the resources (time and possibly space) it takes to test each possible key. Passwords or passphrases created by humans are often short or predictable enough ...
Example of a Key Derivation Function chain. The output of one KDF function is the input to the next KDF function in the chain. In cryptography, a key derivation function (KDF) is a cryptographic algorithm that derives one or more secret keys from a secret value such as a master key, a password, or a passphrase using a pseudorandom function (which typically uses a cryptographic hash function or ...
“A passphrase is two or more words put together that form a password,” he explains. Some examples of passphrases are “stinkychicken” or “spangledbloatedowl.” You can also opt to have ...
Diceware. Diceware is a method for creating passphrases, passwords, and other cryptographic variables using ordinary dice as a hardware random number generator. For each word in the passphrase, five rolls of a six-sided die are required. The numbers from 1 to 6 that come up in the rolls are assembled as a five-digit number, e.g. 43146.
A well-known example of a memorized secret is the common password, also called a passcode, a passphrase, or a personal identification number (PIN). An authenticator secret known to both the claimant and the verifier is called a shared secret. For example, a memorized secret may or may not be shared. A symmetric key is shared by definition.
For example, WPA2 uses: DK = PBKDF2(HMAC−SHA1, passphrase, ssid, 4096, 256) PBKDF1 had a simpler process: the initial U (called T in this version) is created by PRF(Password + Salt), and the following ones are simply PRF(U previous). The key is extracted as the first dkLen bits of the final hash, which is why there is a size limit.
Template. : Committed identity. Committed identity: { { {1}}} is a SHA-512 commitment to this user's real-life identity. Template documentation. This template is used on approximately 3,000 pages and changes may be widely noticed. Test changes in the template's or subpages, or in your own . Consider discussing changes on the before implementing ...