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Digital signatures[]

Under the California Digital Signature Regulations, a message means a digital representation of information intended to serve as a written communication with a public entity.[1]

Under U.S. federal standards, a message is the data that is signed. Also known as “signed data” during the signature verification and validation process.[2]


A message is the collection of data, organized in segments, exchanged by trading partners engaged in EDI. Typically, a message is an electronic version of a document associated with a common business transaction, such as a purchase order or shipping notice. A message begins with a message header segment, which identifies the start of the message (e.g., the series of characters representing one purchase order). The message header segment also carries the message type code, which identifies the business transaction type.


A message is

a digital transmission sent over a computer system or computer network from one person or computer to another.
[a] unit of data transfer from an application in one host to an application in another host.[3]


  1. 2 Cal. Code Regs. 22000(b)(2).[1]
  2. Digital Signature Standard (DSS) 3 (FIPS 186-3) (June 2009).
  3. Unified Capabilities, Framework 2013, App. C, at C-28 (full-text).

See also[]