identity-based cryptosystem - определение. Что такое identity-based cryptosystem
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Что (кто) такое identity-based cryptosystem - определение

Identity based encryption; ID-based encryption; Identity-Based Encryption; Hierarchical identity-based encryption
  • ID Based Encryption: Offline and Online Steps

Identity-based encryption         
ID-based encryption, or identity-based encryption (IBE), is an important primitive of ID-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.
sameness         
RELATION EACH THING BEARS TO ITSELF ALONE
Transitivity of identity; Sameness; Qualitative identity; Numerical identity; Identity (Philosophy); Same (philosophy); Philosophers of identity; Numerically identical; Metaphysics of identity
n.
1.
Identity, identicalness, oneness.
2.
Similarity, resemblance, correspondence, likeness.
3.
Monotony, want of variety.
Identity (social science)         
  • Narcissus]] gazing upon the water after falling in love with his own reflection.
QUALITIES, BELIEFS, PERSONALITY, LOOKS AND/OR EXPRESSIONS THAT DISTINGUISH A PERSON OR GROUP
Psychological identity; Identity (psychology); Social identity
Identity is the qualities, beliefs, personality traits, appearance, and/or expressions that characterize a person or group.Compare Collins Dictionary of Sociology, quoted in

Википедия

Identity-based encryption

ID-based encryption, or identity-based encryption (IBE), is an important primitive of ID-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.

ID-based encryption was proposed by Adi Shamir in 1984. He was however only able to give an instantiation of identity-based signatures. Identity-based encryption remained an open problem for many years.

The pairing-based Boneh–Franklin scheme and Cocks's encryption scheme based on quadratic residues both solved the IBE problem in 2001.