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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 ...
Identity-based systems have a characteristic problem in operation. Suppose Alice and Bob are users of such a system. Since the information needed to find Alice's public key is completely determined by Alice's ID and the master public key, it is not possible to revoke Alice's credentials and issue new credentials without either (a) changing Alice's ID (usually a phone number or an email address ...
The earliest forms of Identity-based security was introduced in the 1960s by computer scientist Fernando Corbató. [4] During this time, Corbató invented computer passwords to prevent users from going through other people's files, a problem evident in his Compatible Time-Sharing System (C.T.S.S.), which allowed multiple users access to a computer concurrently. [5]
Cocks IBE scheme is an identity based encryption system proposed by Clifford Cocks in 2001. [1] ... This page was last edited on 27 November 2023, at 01:40 (UTC).
However, once the identity document's security is breached, the identity it is meant to protect is also automatically compromised). This type of technology has been endorsed by the United Nation Office on Drugs and Crime (UNODC) and the United Nation Global Initiative to Fight Human Trafficking (UN.GIFT). [1]
In cryptography, X.509 is an International Telecommunication Union (ITU) standard defining the format of public key certificates. [1] X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, [2] the secure protocol for browsing the web.
The Boneh–Franklin scheme is an identity-based encryption system proposed by Dan Boneh and Matthew K. Franklin in 2001. [1] This article refers to the protocol version called BasicIdent . It is an application of pairings ( Weil pairing ) over elliptic curves and finite fields .
The authentication can be performed using either pre-shared key (shared secret), signatures, or public key encryption. [12] Phase 1 operates in either Main Mode or Aggressive Mode. Main Mode protects the identity of the peers and the hash of the shared key by encrypting them; Aggressive Mode does not. [10]