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  2. Identity-based cryptography - Wikipedia

    en.wikipedia.org/wiki/Identity-based_cryptography

    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 ...

  3. Universally unique identifier - Wikipedia

    en.wikipedia.org/wiki/Universally_unique_identifier

    On the one hand, 40 bits allow about 1 trillion domain/identifier values per node ID. On the other hand, with the clock value truncated to the 28 most significant bits, compared to 60 bits in version 1, the clock in a version 2 UUID will "tick" only once every 429.49 seconds, a little more than 7 minutes, as opposed to every 100 nanoseconds for ...

  4. ID - Wikipedia

    en.wikipedia.org/wiki/ID

    Id (programming language), a parallel functional programming language; iD (software), an editor for OpenStreetMap geodata; id (Unix), a command to retrieve group and user identification.id, the Internet Top Level Domain code for Indonesia; id, the generic object datatype in the Objective-C programming language; Instruction decoder, a decoder in ...

  5. Uniform Resource Identifier - Wikipedia

    en.wikipedia.org/wiki/Uniform_Resource_Identifier

    A Uniform Resource Identifier (URI), formerly Universal Resource Identifier, is a unique sequence of characters that identifies an abstract or physical resource, [1] such as resources on a webpage, mail address, phone number, [2] books, real-world objects such as people and places, concepts. [3]

  6. Unique identifier - Wikipedia

    en.wikipedia.org/wiki/Unique_identifier

    names or codes allocated using a regime involving multiple (concurrent) issuers of unique identifiers that are each assigned mutually exclusive partitions of a global address space such that the unique identifiers assigned by each issuer in each exclusive address space partition are guaranteed to be globally unique.

  7. Identity-based encryption - Wikipedia

    en.wikipedia.org/wiki/Identity-based_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).

  8. Identifier - Wikipedia

    en.wikipedia.org/wiki/Identifier

    In metadata, an identifier is a language-independent label, sign or token that uniquely identifies an object within an identification scheme. The suffix "identifier" is also used as a representation term when naming a data element. ID codes may inherently carry metadata along with them. For example, when you know that the food package in front ...

  9. Code signing - Wikipedia

    en.wikipedia.org/wiki/Code_signing

    Code signing is the process of digitally signing executables and scripts to confirm the software author and guarantee that the code has not been altered or corrupted since it was signed. The process employs the use of a cryptographic hash to validate authenticity and integrity. [ 1 ]