digital signature
A secure, digital code attached to an electronically transmitted message that uniquely identifies and authenticates the sender.? A digital signature consists of a ¡°hashed¡± number combined with a number assigned to a document (a private-encryption key). Generating a signature requires the use of private- and public-key-encryption software, and is often activated by a simple command or act, such as clicking on a ¡°place order¡± icon on a retailer’s website. Digital signatures are esp. important for electronic commerce and are a key component of many electronic message-authentication schemes. Several states have passed legislation recognizing the legality of digital signatures. See E-COMMERCE; KEY ENCRYPTION. [Cases: Signatures 2. C.J.S. Signatures ¡ì 14.]
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