AI & the web
Digital signature
Cryptographic data used to verify a message's origin and whether signed data changed.
In everyday use
A download is checked against its publisher's signature.
What to keep in mind
It is different from an image of a handwritten signature.
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Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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