Stack Overflow
Stack Overflow

Questions tagged [electronic-signature]

Electronic signatures are digital representations of a person's "wet" or "live" signature.

162 questions
2
votes
0 answers

Implement Blind Signature in Foo Protocol

I'm working on e-voting based on blind-signature ( FOO Schema ), does anyone know how to implement blind signature and unblind it in phpseclib? does phpseclib has function for this? My project only needs one line of code to be complete, please help…
Behzad Hassani
  • 2,129
  • 4
  • 30
  • 51
2
votes
1 answer

Implementing secure E voting Foo Scheme

I'm working on electronic voting system(Foo Scheme) in php. for rsa encryption I have used phpseclib. but I don't know how to blind and unblind message. For more information I have put a document Here. I really can't understand the explaination of…
Behzad Hassani
  • 2,129
  • 4
  • 30
  • 51
2
votes
1 answer

Signature Pad: Capturing more than one signature

I am using Thomas J Bradley's Signature Pad, but need it to be able to accept (and regenerate) two (or more) signatures at a time. And unfortunately, right now, I can only get the first canvas widget to accept a signature - the second canvas widget…
Camden S.
  • 2,185
  • 1
  • 22
  • 27
2
votes
2 answers

Performance of XML digital signature: enveloper vs enveloping vs detached

XML-DSig describes 3 positions where the signature of an XML document can be placed relatively to the XML document : the signature can be detached, enveloping, enveloped What are the implications in terms of performance of these three options?
rds
  • 26,253
  • 19
  • 107
  • 134
2
votes
2 answers

Digitally Sign DATA, Not Documents

What constitutes a "legal" digital signature for a web form (not a document)? OPTION 1: I worked on a project where a doctor makes notes on the health of a patient. When the web form is submitted a PDF is generated and digitally signed with a…
Jim Brown
  • 498
  • 1
  • 6
  • 20
2
votes
1 answer

Count number of digital signatures?

I have a form that allows for multiple signatures. I would like for the form to count the number of signatures and display text if under 3 signatures (as a warning). How can this be done? I assume the solution would be some sort of VB code. I found…
JBurace
  • 5,123
  • 17
  • 51
  • 76
2
votes
1 answer

Generating XADES-BES with “ds” prefix

I used signedxml class for generating xml signature. And the result xml like below;
Turgay Gençer
  • 121
  • 1
  • 4
  • 11
1
vote
1 answer

Merging PDF signatures of the same PDF

Preamble: I am not trying to merge different PDFs. I was wondering. Does the signature of a PDF modify the signed portion of the document or is it appended to some other section of the file? If the signed portion of the document does not include the…
bendem
  • 185
  • 2
  • 9
1
vote
0 answers

Signing PDF electronically with syncfusion pdf plugin in Flutter

I want to sign pdf electronically. so i used signature package to draw signature , used Draggable widget to position image on the pdf with Stack, and used syncfusion_flutter_pdf for drawing the image on Pdf. when drawing the image with the offset…
Muhammed Jasir
  • 65
  • 5
1
vote
1 answer

How does a e-signature over PDF software works?

I want to replicate the core functionality of an e-signature software such as DocuSign, HelloSign or SignRequest. Everything is clear to me, but I have a hard time understanding how does the software works itself. How does it render the boxes over…
NicolasSC
  • 368
  • 2
  • 19
1
vote
0 answers

ILI9488 TFT LCD Arduino Shield - Can't use Touch and SDcard reading in the same program

I have a problem with my ILI9488 TFT Touch LCD module (Arduino Uno Shield). (320x480) I can show .bmp pictures on the screen, read out of a SD-card. In another testprogram, I can Serial.print() a char when I touch the display. (That's all it needs…
HiDiReDi
  • 11
  • 2
1
vote
0 answers

Supplied key (sun.security.mscapi.CPrivateKey) is not a RSAPrivateKey instance (DIGITAL SIGNATURE)

So i'm reading the certificate, privatekey..etc from a usb dongle and i try to sign a pdf, but it gives me the following exception : Exception in thread "main" java.security.InvalidKeyException: Supplied key (sun.security.mscapi.CPrivateKey) is not…
Imrane Akkouh
  • 64
  • 4
1
vote
0 answers

how to insert multiple size of app icon for electron app using electron builder

I'm making an electron app and there is only one option to choose it 256by256 and when the app is packaged the app icon is very poor on resolution i want to select multiple like 16by16 64by64 and other for electron using electron builder
tedGuy
  • 171
  • 1
  • 7
1
vote
0 answers

Digital Signature With TSA Timestamping and building revocation information for PDF with OID pdfRevocationInfoArchival in Java

Digital Signature Timestamping and Revocation information in PDF OID We already have an complete Electronic Signature PKI setup. We issues user end certifcates with conformance to CCA India and this certificate is further used for electronic…
Nikhil Wankhade
  • 177
  • 13
1
vote
1 answer

What are the Adobe standards used for digital signature?

I am a novice programmer who is implementing a digital signature for a PDF doc. I want to know the standards used in the industry to sign and verify the document. A stepwise approach from key generation to verification of document works for me.
Prince Roshan
  • 144
  • 9
1 2
3
…
10 11