In cryptography, the common reference string (CRS) model captures the assumption that a trusted setup in which all involved parties get access to the same string crs taken from some distribution D exists. Schemes proven secure in the CRS model are secure given that the setup was performed correctly. The common reference string model is a generalization of the common random string model, in which D is the uniform distribution of bit strings. As stated in, the CRS model is equivalent to the reference string model and the public parameters model.
The CRS model has applications in the study of non-interactive zero-knowledge proofs and universal composability.
Famous quotes containing the words common, reference, string and/or model:
“Civil servants and priests, soldiers and ballet-dancers, schoolmasters and police constables, Greek museums and Gothic steeples, civil list and services list—the common seed within which all these fabulous beings slumber in embryo is taxation.”
—Karl Marx (1818–1883)
“Meaning is what essence becomes when it is divorced from the object of reference and wedded to the word.”
—Willard Van Orman Quine (b. 1908)
“The most perfect expression of human behavior is a string quartet.”
—Jeffrey Tate (b. 1943)
“The striking point about our model family is not simply the compete-compete, consume-consume style of life it urges us to follow.... The striking point, in the face of all the propaganda, is how few Americans actually live this way.”
—Louise Kapp Howe (b. 1934)