Questions tagged [physical-signature]

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39
votes
5answers
9k views

How do living politicians protect their readily obtainable signatures from misuse?

Many living politicians' signatures are found online or can handily be acquired (You can write them, and their letters will contain their signature). Thus do they use a different signature for ...
4
votes
0answers
197 views

How accurate are people at determining the validity of a signature?

Is there any scientific survey about this? I could imagine an experiment like this: 100 people provide at least 3 times their signature (e.g. with different pens) Each of them gets all 3 example ...
1
vote
1answer
136 views

Is it possible to verify that a signature was made prior to the content of the document it is found on?

In What to do after I signed a blank sheet of paper given to me by my manager?, a distressed individual (B) has signed a blank piece of paper and given it to an adversary (A). A has openly stated to ...
1
vote
1answer
63 views

Tamper-proofing/checking handmade signature

I would like to print pre-signed documents with a verifiable OTP on it. I'm a web/system developer, crypto and security enthusiast. Somehow, I'm now the head of HR in a hotel in Congo. As an IT guy, ...
2
votes
1answer
150 views

Handwriting/cursive education is on the decline. How does this affect signature-based authentication?

More and more schools are not teaching cursive handwriting, and many are considering it more of an art, or optional in the curriculum. I assume this will have an impact on the ability to forge a ...
60
votes
2answers
17k views

Why are hand-written signatures still so commonly used?

Why are hand-written signatures still so commonly used? Can they actually prove anything? Two assumptions: If anyone wants to forge my signature I'm sure they will be able to do it. Even my own ...