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For instance, a ring signature could be used to provide an anonymous signature from "a high-ranking White House official", without revealing which official signed the message. Ring signatures are right for this application because the anonymity of a ring signature cannot be revoked, and because the group for a ring signature can be improvised.
The creators of the Ring-based Learning with Errors (RLWE) basis for cryptography believe that an important feature of these algorithms based on Ring-Learning with Errors is their provable reduction to known hard problems. [8] [9] The signature described below has a provable reduction to the Shortest Vector Problem in an ideal lattice. [10]
In post-quantum cryptography, ring learning with errors (RLWE) is a computational problem which serves as the foundation of new cryptographic algorithms, such as NewHope, designed to protect against cryptanalysis by quantum computers and also to provide the basis for homomorphic encryption.
Ring signature: A similar system that excludes the requirement of a group manager and provides true anonymity for signers (several algorithms nevertheless maintain some "restricting" properties, like traceability or linkability) Threshold signature: A threshold signature involves a fixed-size quorum (threshold) of signers. Each signer must be a ...
GGH signature scheme. Güneysu, Lyubashevsky, and Pöppelmann's work, which is based on ring learning with errors (RLWE). [30] MITAKA, a variant of Falcon. [31] NTRUSign. qTESLA, which is based on ring learning with errors (RLWE). The qTESLA scheme joined the standardization call conducted by the National Institute of Standards and Technology ...
Rivest was one of the inventors of the GMR public signature scheme, published with Shafi Goldwasser and Silvio Micali in 1988, [9] and of ring signatures, an anonymized form of group signatures invented with Shamir and Yael Tauman Kalai in 2001.
Kurt Frederick Ludwig (December 4, 1903 – December 1987) [1] [2] was a German spy and the head of the "Joe K" spy ring in the United States in 1940–1941.. The ring was known as Joe K because it was the signature used in letters sent to Berlin addresses giving information on Allied shipping in New York Harbor.
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