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Dictionary attack information


In cryptanalysis and computer security, a dictionary attack is an attack using a restricted subset of a keyspace to defeat a cipher or authentication mechanism by trying to determine its decryption key or passphrase, sometimes trying thousands or millions of likely possibilities[1] often obtained from lists of past security breaches.

  1. ^ Junghyun Nam; Juryon Paik; Hyun-kyu Kang; Ung Kim; Dongho Won (2009-03-01). "An off-line dictionary attack on a simple three-party key exchange protocol". IEEE Communications Letters. 13 (3): 205–207. doi:10.1109/LCOMM.2009.081609. ISSN 1089-7798.

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Dictionary attack

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In cryptanalysis and computer security, a dictionary attack is an attack using a restricted subset of a keyspace to defeat a cipher or authentication mechanism...

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Attack

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up attack in Wiktionary, the free dictionary. Attack may refer to: Attack (fencing) Charge (warfare) Offensive (military) Strike (attack) The Attack (novel)...

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Oxford Dictionary of English

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The Oxford Dictionary of English (ODE) is a single-volume English dictionary published by Oxford University Press, first published in 1998 as The New...

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Password

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attack. A related method, rather more efficient in most cases, is a dictionary attack. In a dictionary attack, all words in one or more dictionaries are...

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Passphrase

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language dictionary—especially one available as electronic input to a software program—the passphrase is rendered more vulnerable to dictionary attack. This...

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Conficker

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uses flaws in Windows OS software (MS08-067 / CVE-2008-4250) and dictionary attacks on administrator passwords to propagate while forming a botnet, and...

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Directory harvest attack

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brute force. The attack is usually carried out by way of a standard dictionary attack, where valid e-mail addresses are found by brute force guessing valid...

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Secure Remote Password protocol

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information to be able to brute-force guess a password or apply a dictionary attack without further interactions with the parties for each guess. Furthermore...

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Encryption

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information via its length. Cryptosystem Cold boot attack Cyberspace Electronic Security Act (US) Dictionary attack Disk encryption Encrypted function Export of...

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John the Ripper

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use is the dictionary attack. It takes text string samples (usually from a file, called a wordlist, containing words found in a dictionary or real passwords...

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Surprise Attack

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surprise attack in Wiktionary, the free dictionary. A surprise attack is an act of military deception. Surprise Attack may also refer to: Surprise Attack (album)...

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Wardialing

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force attack against an authentication mechanism, such as a password. While a dictionary attack might involve trying each word in a dictionary as the...

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Draw a Secret

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or "Points-of-interest" in a grid or background image, a graphical dictionary attack can be initiated to guess users' passwords . Other factors such as...

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Fail2ban

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malicious connections, as well as reducing the likelihood of a successful dictionary attack. Fail2Ban can perform multiple actions whenever an abusive IP address...

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Attack on Pearl Harbor

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The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service on the American naval base at Pearl Harbor in Honolulu...

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Authenticated encryption

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up her search for passwords by a factor of almost 1000. For this dictionary attack to succeed, Mallory also needs an ability to distinguish successful...

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Key stretching

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attacker must trial the entire stretched key space) Attempt possible combinations of the weaker initial key, potentially commencing with a dictionary...

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Hashcat

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multiple attack modes for obtaining effective and complex coverage over a hash's keyspace. These modes are: Brute-force attack Combinator attack Dictionary attack...

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LAN Manager

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replay the hash. Without salt, time–memory tradeoff pre-computed dictionary attacks, such as a rainbow table, are feasible. In 2003, Ophcrack, an implementation...

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Password cracking

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taken up by script kiddies. Brute-force attack Cold boot attack Dictionary attack Password strength Smudge attack oclHashcat-lite – advanced password recovery...

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Wireless security

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where there are a number of tools available which can launch a dictionary style attack of "possibly accepted" security keys based on the "model" security...

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