Browse Definitions :
Definition

John the Ripper

John the Ripper is a popular open source password cracking tool that combines several different cracking programs and runs in both brute force and dictionary attack modes.

John the Ripper is often used in the enterprise to detect weak passwords that could put network security at risk, as well as other administrative purposes. The software can run a wide variety of password-cracking techniques against the various user accounts on each operating system and can be scripted to run locally or remotely.

Originally developed for Unix-derived systems, John the Ripper is available for most common platforms. The free and open source  (FOSS) version is generally distributed as source code. A commercial version, John the Ripper Pro, is a more user-friendly version distributed as native code for a given system. 

See also: password entropy, password blacklist, password strength meter

This was last updated in January 2014

Continue Reading About John the Ripper

Networking
Security
  • quantum key distribution (QKD)

    Quantum key distribution (QKD) is a secure communication method for exchanging encryption keys only known between shared parties.

  • Common Body of Knowledge (CBK)

    In security, the Common Body of Knowledge (CBK) is a comprehensive framework of all the relevant subjects a security professional...

  • buffer underflow

    A buffer underflow, also known as a buffer underrun or a buffer underwrite, is when the buffer -- the temporary holding space ...

CIO
  • benchmark

    A benchmark is a standard or point of reference people can use to measure something else.

  • spatial computing

    Spatial computing broadly characterizes the processes and tools used to capture, process and interact with 3D data.

  • organizational goals

    Organizational goals are strategic objectives that a company's management establishes to outline expected outcomes and guide ...

SearchHRSoftware
  • talent acquisition

    Talent acquisition is the strategic process employers use to analyze their long-term talent needs in the context of business ...

  • employee retention

    Employee retention is the organizational goal of keeping productive and talented workers and reducing turnover by fostering a ...

  • hybrid work model

    A hybrid work model is a workforce structure that includes employees who work remotely and those who work on site, in a company's...

Customer Experience
  • database marketing

    Database marketing is a systematic approach to the gathering, consolidation and processing of consumer data.

  • cost per engagement (CPE)

    Cost per engagement (CPE) is an advertising pricing model in which digital marketing teams and advertisers only pay for ads when ...

  • B2C (Business2Consumer or Business-to-Consumer)

    B2C -- short for business-to-consumer -- is a retail model where products move directly from a business to the end user who has ...

Close