Capture UserID, date/time stamp, then use it as signature in an input

I used the following solution to get the userID of the current user of the SharePoint site:

https://stackoverflow.com/questions/20981226/sharepoint-2013-get-current-user-using-javascript

Now what I would like to do is, have some kind of way to capture this, add a time stamp and have that input into an item field of a list. I already created a signature column, which is where I want the userid and time stamp to go to.

I saw another site do this and it appears that you click on a link, then a page pops up with the userid and the date. There’s a button sign and cancel. If you press sign, it captures that an inputs into a Sharepoint field.

Can this be done via JavaScript only?

Does the term “malware signature” always refer to a pattern of bytes?

I know that traditionally a malware signature is a pattern of bytes in a program. While reading Joxean Koret and Elias Bachaalany’s “Antivirus Hacker’s Handbook” I saw that the authors categorized the use of call-graphs and flow-graphs in malware detection as forms of signature-based detection.

Is it accepted that call-graphs and flow-graphs could be considered signatures? If so then what is the general definition of a malware signature?

How does the “TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256” cipher suite work with RSA Signature Algorithm during TLS communication?

enter image description hereI see that facebook using ECC public key but the CA signed using RSA private key.While connecting to facebook it uses TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256. Here the Authentication algorithm is ECDSA.How is ECDSA compatible with RSA? Or can the Signature algorithm be anything as long as the Public key is compatible(in this case ECC).

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by: Istiaqnaeem
Created: —
Category: HTML/CSS
Viewed: 117


Send a CA certificate via email without a digital signature?

If a friend wants to send me his S/MIME CA certificate containing his public key, why does he need to add a digital signature? A digital signature verifies that the content was sent by him and not a man-in-the-middle who has put his own public key in the email. But since we are now talking about a CA certificate (which is signed with the private key of the CA itself saying “yes, this public key belongs to email address yxz”) and not just a raw public key, I think a digital signature by my friend is not needed at all, is this right? The articles that I’ve read were all saying the same thing: “send a public key via email and add a digital signature”. But I’m assuming they were assuming a raw public key, not a CA signed one. Am I correct to assume that a CA certificate can be safely sent via email without any encryption or digital signatures involved? I guess it’s important to distinguish between a public key and a CA certificate which contains a public key. But I would like to have a confirmation by the experts since this is a sensible topic.

What is the advantage of using a digital signature over simple asymmetric encryption?

If you’re sending me a message, you can:

a) Encrypt the message using your private key, and I can decrypt is using your public key.

b) You can create a digital signature of your message, and then send the signature along with the un-encrypted message.

My two questions are:

1) I read somewhere that in the (a) scenario, if your encrypted message is tampered with en route, I won’t be able to decrypt it using your public key. Is this the case? I thought I’d be able to apply your public key to any message, tampered-with or not, and if it’s been tampered with, the message might just be gibberish or something.

2) What is the advantage of (b) over (a)? Given that the encrypted message in (a) and the digital signature in (b) are both encrypted using the same private key, in what way is the security provided by (b) better?

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by: alim1289
Created: —
Category: Email & Newsletters
Viewed: 183