Category "digital-signature"

How to handel Imbalance data while using LSTM

I am doing a project on an online signature verification system using RNNs LSTM. In the project, I am facing a problem while using the signatures as LSTM trai

How to get R and S values from ECDSA signature using PHP

I am working on Signature of data using ECDSA from Starkbank library and I can get the base64 format of the signature value MEUCIALlD6Xsd0Xdj7XTrD2gP4Q3PlssTxLO

JAVA Generating a Signature for Apple Promotional Offers

I'm trying to generate a signature to be returned to the mobile application in order to validate a promotional offer with the App Store. Apple documentation :do

How to add a digital signature in devexpress blazor

I want to add a digital signature field in a form[razor page] how can i add a digital signature in a razor page in devexpress blazor app <DxFormLayoutItem C

Verify Metamask signature (ethereum) using Python

I would like to verify an ethereum (ETH) signature made in MetaMask using python. I'm developing a website using flask as backend. Javascript code send a POST r

Find blank space(rectangle) for signature field using PDFBox

When you want to create a visible signature using PDFBox you need to create a Rectangle2D object. Rectangle2D humanRect = new Rectangle2D.Float(100, 200, 150, 5

Bouncycastle how to envelop the signed digest it in the original document with java?

In connection with this issue: https://github.com/bcgit/bc-java/issues/1021 I am looking for the best method to envelope the signed hash of a document inside th

SignedCms.CheckSignature with SAP certificate is failing

This is a follow-up of this question. I am writing an external server which gets called by a SAP-Server. The SAP-Server signs the URL with a certificate before

Sign PDF with new Belgian id card (eid middleware and itext)

I try to sign some pdf's with a Belgian id card. To acheive that, I'm using the belgium eid middleware to sign the data and itext7 to stamp the pdf with the sig

How long is a document signed with a Digital Signature Certificate valid after the time it is signed?

My understanding is that the digital certificate is valid up to 3 years depending upon what you paid for to the certificate issuing company. So for example, If

add namespace to the SignedInfo node when signing an XML document

I am signing an XML document and everything works correctly, but they are rejecting the document because they tell me that the SignedInfo node does not contain

Why isn't my assembly signed even after I specified it to be in properties

Why isn't my console application assembly digitally signed even after I specified it to be signed in the project properties?

Extract metadata info and Validate digital signature from PDF file using Python

Im trying to validate a PDF which is digitaly signed, and to extract the signers name. Is there any library for doing this job in python? So far I've just come

Digital certificates: What is the difference between encrypting and signing

I am relatively new to PKI, certificates and all related stuff. As far as I understand in public-key cryptography one encrypt with a public key and decrypt wit

Difference result by using sign and verify for signature

I tried to use private key to sign the message digest to generate the signature, and then use public key to verify the signature to get message digest. I want t