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Illegal prime
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An illegal prime is a prime number that represents information whose possession or distribution is forbidden in some legal jurisdiction. One of the first illegal primes was found in 2001, when interpreted in a particular way, it describes a computer program that bypasses the digital rights management scheme used on DVDs. Distribution of such a program in the United States is illegal under the Digital Millennium Copyright Act, an illegal prime is a kind of illegal number. One of the earliest illegal prime numbers was generated in March 2001 by Phil Carmody, protests against the indictment of DeCSS author Jon Lech Johansen and legislation prohibiting publication of DeCSS code took many forms. One of them was the representation of the code in a form that had an intrinsically archivable quality. Since the bits making up a program also represent a number. The primality of a number is a property of number theory and is therefore not dependent on legal definitions of any particular jurisdiction. The large prime database of The Prime Pages website records the top 20 primes of various special forms, thus, if the number were large enough and proved prime using ECPP, it would be published. Specifically, Carmody applied Dirichlets theorem to several candidates of the form k·256n + b. Multiplying by a power of 256 adds as many trailing null characters to the file as indicated in the exponent which would still result in the DeCSS C code when unzipped. In a way, by having this number independently published for a completely unrelated reason to the DeCSS code, following this, Carmody also discovered another prime, this one being directly executable machine language for Linux i386, implementing the same functionality