Columbia subject headings:
Data encryption (Computer science)--Law and legislation--United States.
Data protection--Law and legislation--United States.
Electronic commerce--Law and legislation--United States.
Signature (Law)--United States--Data processing.
Harvard subject headings:
Electronic commerce--Law and legislation
Internet.
Signature (Law)--Data processing.
Princeton subject headings:
Data encryption (Computer science)--Law and legislation--United States.
Data protection--Law and legislation--United States.
Electronic commerce--Law and legislation--United States.
Signature (Law)--United States--Data processing.