valid signature

См. также в других словарях:

• signature by mark — The use, normally by an illiterate person, of a mark, such as a cross, even a fingerprint or thumbprint, as a substitute for a complete signature of one s name. A valid signature when witnessed as required by statute. 17 Am J2d Contr § 72; 23 Am… …   Ballentine's law dictionary

• valid — adj. 1 legally acceptable VERBS ▪ be ▪ become ▪ remain, stay ▪ deem sth, hold sth ▪ …   Collocations dictionary

• signature — noun 1 written name ADJECTIVE ▪ illegible ▪ handwritten ▪ valid ▪ forged ▪ digital, electronic …   Collocations dictionary

• Digital signature — This article is about secure cryptographic signatures. For simple signatures in digital form, see Electronic signature. A digital signature or digital signature scheme is a mathematical scheme for demonstrating the authenticity of a digital… …   Wikipedia

• Digital signature forgery — In a cryptographic digital signature or MAC system, digital signature forgery is the ability to create a pair consisting of a message m and a signature (or MAC) σ that is valid for m, where m has not been signed in the past by the legitimate… …   Wikipedia

• Merkle signature scheme — The Merkle signature scheme is a digital signature scheme based on hash trees (also called Merkle trees) and one time signatures such as the Lamport signature scheme. It was developed by Ralph Merkle in the late 70s and is an alternative to… …   Wikipedia

• Quantum digital signature — A Quantum Digital Signature (QDS) refers to the quantum mechanical equivalent of either a classical digital signature or, more generally, a handwritten signature on a paper document. Like a handwritten signature, a digital signature is used to… …   Wikipedia

• Blind signature — In cryptography, a blind signature, as introduced by David Chaum [David Chaum, Blind signatures for untraceable payments, Advances in Cryptology Crypto 82, Springer Verlag (1983), 199 203.] , is a form of digital signature in which the content of …   Wikipedia

• Group signature — A Group signature scheme is a method for allowing a member of a group to anonymously sign a message on behalf of the group. The concept was first introduced by David Chaum and Eugene van Heyst in 1991. For example, a group signature scheme could… …   Wikipedia

• Electronic signature — The term electronic signature has several meanings. Among the more expansive is that given by US law, influenced by ABA committee white papers and the uniform law promulgated by the National Conference of Commissioners on Uniform State Laws… …   Wikipedia

• Ring signature — In cryptography, a ring signature is a type of digital signature that can be performed by any member of a group of users that each have keys. Therefore, a message signed with a ring signature is endorsed by someone in a particular group of people …   Wikipedia