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{{Short description|Type of public-key encryption}}
'''Identity-based encryption''' ('''IBE'''), is an important primitive of [[identity-based cryptography]]. As such it is a type of [[public-key encryption]] in which the [[public key]] of a user is some unique information about the identity of the user (e.g. a user's email address). This means that a sender who has access to the public parameters of the system can encrypt a message using e.g. the text-value of the receiver's name or email address as a key. The receiver obtains its decryption key from a central authority, which needs to be trusted as it generates secret keys for every user.
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== External links ==
* [https://web.archive.org/web/20201020201238/https://www.crypto.ruhr-uni-bochum.de/lehre/ss14/cryptosem.html.en Seminar 'Cryptography and Security in Banking'/'Alternative Cryptology', Ruhr University Bochum, Germany]
* [https://web.archive.org/web/20170605075501/http://www.ietf.org/rfc/rfc5091.txt RFC 5091 - the IETF RFC defining two common IBE algorithms]
* [http://www.hpl.hp.com/techreports/2003/HPL-2003-21.pdf HP Role-Based Encryption] {{Webarchive|url=https://web.archive.org/web/20031212160232/http://www.hpl.hp.com/techreports/2003/HPL-2003-21.pdf |date=2003-12-12 }}
* [https://web.archive.org/web/20090416044556/http://www.larc.usp.br/~pbarreto/pblounge.html The Pairing-Based Crypto Lounge]
* [https://web.archive.org/web/20090628190353/http://www.voltage.com/vsn/ The Voltage Security Network - IBE encryption web service]
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