Forgery (other)
Forgery is the process of making false documents. Forgery may also refer to the following conceptually similar topics: * Art forgery *Digital signature forgery See also * * *Counterfeit To counterfeit means to imitate something authentic, with the intent to steal, destroy, or replace the original, for use in illegal transactions, or otherwise to deceive individuals into believing that the fake is of equal or greater value tha ...

Forgery
Forgery is a white-collar crime that generally refers to the false making or material alteration of a legal instrument with the specific intent to defraud anyone (other than themself). Tampering with a certain legal instrument may be forbidden by law in some jurisdictions but such an offense is not related to forgery unless the tampered legal instrument was actually used in the course of the crime to defraud another person or entity. Copies, studio replicas, and reproductions are not considered forgeries, though they may later become forgeries through knowing and willful misrepresentations. Forging money or currency is more often called counterfeiting. But consumer goods may also be ''counterfeits'' if they are not manufactured or produced by the designated manufacturer or producer given on the label or flagged by the trademark symbol. When the object forged is a record or document it is often called a false document. This usage of "forgery" does not derive from metalwork d ...
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Art Forgery
Art forgery is the creating and selling of works of art which are falsely credited to other, usually more famous artists. Art forgery can be extremely lucrative, but modern dating and analysis techniques have made the identification of forged artwork much simpler. This type of fraud is meant to mislead by creating a false provenance, or origin, of the object in order to enhance its value or prestige at the expense of the buyer. As a legal offense, it is not just the act of imitating a famous artists key characteristics in a piece of art, but the deliberate financial intent by the forger.Lenain, Theirry (2003) "Forgery". Grove Art Online. When caught, some of these forgers attempt to pass off the fakes as jokes or hoaxes on the art experts and dealers they were selling to, or on the art world as a whole. To excel in this type of forgery, the forger must pass themselves off as incredibly trustworthy and charismatic in order to recruit the necessary middlemen such as art dealers, s ...
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Digital Signature Forgery
In a cryptographic digital signature or MAC system, digital signature forgery is the ability to create a pair consisting of a message, m, and a signature (or MAC), \sigma, that is valid for m, but has not been created in the past by the legitimate signer. There are different types of forgery. To each of these types, security definitions can be associated. A signature scheme is secure by a specific definition if no forgery of the associated type is possible. Types The following definitions are ordered from lowest to highest achieved security, in other words, from most powerful to the weakest attack. The definitions form a hierarchy, meaning that an attacker able to do mount a specific attack can execute all the attacks further down the list. Likewise, a scheme that reaches a certain security goal also reaches all prior ones. Total break More general than the following attacks, there is also a ''total break'': when adversary can recover the private information and keys used by t ...
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