A digital signature added to a piece of
code to prove it was produced by a known entity and has
not been tampered with to build consumer confidence. In the
DRM terminology, code signing is used to verify that rights-enforcing code
has not been tampered with.
DRM Watch Analysis of digital rights management technology.
Introduction to Code Signing Packaged software uses branding and trusted sales outlets to assure users of its integrity, but these are not available when code is transmitted on the Internet.