How Do I Implement Sign in DropBox

When a client enters information (such as a password) into the online form on , the information is encrypted so the client cannot see it. An authorized representative for the client, called a "Doe Representative," must enter the information into the "Signature" field to complete the signature.

That you have the signature of an actual person that signed it. And, of course, I do. Because that's the thing about an electronic signature. If you can't prove with something else that you were the actual person who actually signed it or that your physical signature is there, it becomes a fraud. That is, unless you could get a court to sign off on it, where the court would basically rule this electronic signature is a real signature, even if the electronic signature looks real to you. You can't be sure. It's like the difference between a hologram and a hologram. It doesn't matter who put it there. They don't have to show a real hand to make it work. So, if you sign an electronic signature, if that person can't provide proof that the signature is theirs, it becomes fake. It becomes fraud. So, in the case of electronic signatures, and there's an entire case that's been pending in the court for about ten years about, what to do about them, the judge actually said there was enough evidence in that case, which is sort of an interesting precedent for a lot of these kinds of cases. If you can show a court that an electronic signature can be faked, you could get a court ruling to allow you to make a copy of that signature and prove that the signature is fake. So that would solve that particular problem. It's not a complete fix by any stretch of the imagination, but it would solve that particular issue. So that would really solve one of the two problems, because then you could us...

Answered by Jan Mertens The answer is the same as above: You do not get a legal signature from a computer with a virus/trojan when you do this, so you can not rely on this as an example. If you are really curious, you can use a scanner to verify the digital signature. However, you cannot know for sure whether the signature is genuine without the information of the individual who signed it. If you were trying to verify for example the signature of a bank employee, you might want to make sure that this person has a bank account and the account number (if there is one) of the money the signature is for. The signature you are trying to verify is a digital signature. There are two basic cryptographic algorithms used in digital certificates — a digital signature is one that is derived, like the signature you are trying to validate. A digital signature is a mathematical calculation — and it is based on mathematical formulas. If you know the formula then you can verify for instance that this signature is genuine. A digital signature can be a piece of information that, together with other information, makes it possible to verify the signature. It is usually written in the format: [signature] This means this is a piece of information about the signature. Some examples for digital signatures are: A digital signature can be created by: a cryptographic algorithm a private key a public key. The mathematical notation for these algorithms is: [math]x(n,m)[/math] In English t...