Under Estonian law, since 15 December 2000 the cryptographic signature is legally equivalent to a manual signature.

The iPhone's operating system is designed to only run software that has an Apple-approved cryptographic signature.

For example, its update payloads have full cryptographic digital signatures as part of them.

Electronic signatures such as paper signatures sent by fax may have legal meaning, while secure cryptographic signatures may serve completely different purposes.

Programs that require normally unapproved right combinations need a cryptographic signature by some authority.

They must also be part of the application's cryptographic signature in order to prevent tampering.

The barcode data contains such information as amount of postage, origin zip code, destination, mail class, weight, confirmation/tracking numbers, and a cryptographic signature.

(signature): Contains the weak cryptographic signature of the archive.

The TPM is also able to produce a cryptographic signature based on its hidden key.

An often-used analogy to the cryptographic blind signature is the physical act of enclosing a ballot in a special carbon paper lined envelope.