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1
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0answers
27 views

Java Applet on Ubuntu Web Server

I have an java applet to sign documents digitally: http://www.pki.sanluis.gov.ar/PkiAsp/Paginas/Pagina.asp?PaginaId=54 I have a middleware to do this from a smart card. I can't export the private key ...
0
votes
1answer
36 views

Select PGP signature key in KMail

I have just generated a new PGP key pair with KGpg. I want to use the key for signing and encrypting mails. I have done that before without problems ... now it no longer works. Either I have made a ...
0
votes
1answer
71 views

Invalid Boot Signature after upgrade to 16.04 (dual boot windows 10) [duplicate]

I'm lost not sure what to do here.... I don't know how to configure my secure booting options. I don't which setting to change?
3
votes
1answer
28 views

What keys is GnuPG using for signature verification?

Let assume that I have a list of three key pair on my bash screen when I run the following commands: gpg2 --list-keys and gpg2 --list-secret-keys My question is, when I run the following command ...
0
votes
0answers
21 views

Package signing for commercial application

I have an application which will be distributed as commercial one. It won't be a part of Ubuntu Application store as well as it won't be a part of ppa. I am going to distribute it using .deb and .rpm ...
1
vote
0answers
17 views

How to insert digital signature in LibreOffice documents [duplicate]

I was trying to insert digital signature in LibreOffice writer documents. I went to file section then to digital signature. After that, I couldn't insert my sign because the option was blank. How to ...
0
votes
2answers
143 views

bypass the yes prompt in apt-get install, but only authorized packages

How do I call apt-get install -y --force-yes if I want to install the package no matter what, except unauthorized packages. So I want apt-get to work in non interactive mode and only with signed ...
0
votes
0answers
9 views

Signature invalide while updating the package

W: GPG error: http://us.archive.ubuntu.com trusty Release: The following signatures were invalid: BADSIG 16126D3A3E5C1192 Ubuntu Extras Archive Automatic Signing Key
12
votes
2answers
940 views

How to sign files with Ubuntu command-line tools and my own keys?

I want to sign some Python code files I wrote, because they are plug-in modules for one of my projects. For distributing it, I want that the user can be sure a plug-in is verified and safe (because ...
3
votes
2answers
359 views

how do you create a “signed” deb package

I want to create a number of deb packages, but I don't know how "signing" packages works. So I was wondering how to create a signed deb package.
2
votes
0answers
209 views

How do I sign my own kernel modules to avoid tainting the kernel?

I've made a kernel module, using this tutorial as an example. It works, but on loading I get a warning in kernel log: gdt_get: module verification failed: signature and/or required key missing - ...
19
votes
4answers
16k views

Google Chrome PPA upgrade invalid signature

When running: sudo apt-get update && sudo apt-get dist-upgrade I got this output: Ign http://security.ubuntu.com utopic-security InRelease Ign http://gb.archive.ubuntu.com utopic InRelease ...
5
votes
2answers
2k views

GPG says that it needs a passphrase but it actually doesn't

I try to use GPG to sign files but something confuses me: If I enter in the terminal (the file I want to sign is called "checksums") it says: $ gpg -s checksums You need a passphrase to unlock ...
2
votes
0answers
303 views

Include signature for new messages only. Evolution mail client

Previously I found on Thunderbird, there's a option called checkbox: Include signature for replies. If I un-select this box, Thunderbird adding signature only for the new messages. Not for replies. ...
0
votes
1answer
336 views

CAC Card Digital signatures in LibreOffice

All, I've been wondering if there is an approveit equivalent for Libre Office that supports the applying of digital certificate signatures from my CAC card to say, writer or impress, or calc the way ...
3
votes
2answers
15k views

Signatures not verified [duplicate]

These are the signature errors that persist after I tried several fixes mentioned on the Internet W: GPG error: http://deb.opera.com stable InRelease: The following signatures couldn't be verified ...
1
vote
1answer
53 views

Signatures Invalid and Problem with MergeList error

So, whenever I try to update repos recently (via apt-get), I get something like this: Reading package lists... Error! W: GPG error: http://ppa.launchpad.net trusty Release: The following signatures ...
1
vote
2answers
618 views

Where do I find Ubuntu's PGP signatures and signing keys? [duplicate]

where can I find PGP signatures and signing keys for Ubuntu? I want to verify the download, but the only thing I can find are the MD5 hashes (https://help.ubuntu.com/community/UbuntuHashes). I can't ...
2
votes
0answers
3k views

NTFS Signature is missing

So I got a new secondary hard drive caddy and formatted it to NTFS. I forgot to partition the drive after formatting, rebooted, and now I can't access the drive that has around 400 GB of data on it ...
3
votes
1answer
78 views

Generate Detatched PGP/Signature File

I am creating a few metalinks for an installer similar to wubi. It requires me to create a MD5SUMS-metalink file which I have done but the program will not continue because it requires a MD5SUMS-...
15
votes
2answers
1k views

Does linux have a signature system for executables?

Windows has a signature system which allows you to make sure that an executable hasn't been modified after it has been signed. I used to use this as a security measure in Windows. Does linux have ...
2
votes
0answers
370 views

Awkward GPG error with Ubuntu Server running “sudo apt-get update”

I just installed raring 32 bit server on an old machine, it seemed to work fine, but when I try to run sudo apt-get update I get this error (I'm translating from Italian) E: GPG Error: http://...
0
votes
1answer
549 views

Digitally signing .bin file using a certificate

I have .bin file and i need to digitally sign it to ensure that it is given by me and trusted one. How can i digitally sign? In microsoft i am using signtool.exe to sign which signs by using a ...
0
votes
1answer
8k views

GPG Error, can't update 12.04 [duplicate]

I have seen the following question, however it doesn't solve my problem: Update Manager Error - Authentication Error I can't update my Ubuntu 12.04! I get the following error after running sudo ...
0
votes
1answer
46 views

Problems with signature of archive? [duplicate]

Possible Duplicate: What is the easiest way to resolve apt-get BADSIG GPG errors? I have a Ubuntu Server VM running 12.10 and functioning as a Minecraft server. I tried to run updates on it ...
7
votes
1answer
5k views

How can I validate a pdf's digital signature with evince?

A while ago I received a PDF file that was digitally signed. The Document Viewer (Evince) shows me that the digital signature was not validated. How do I add the file's digital signature to evince ...
2
votes
1answer
161 views

How to publish your key used to sign deb packages so you will be able to use your repository from any machine?

I am looking for a solution that would prevent me from seeing things like: W: GPG error: http://updates.example.com lenny Release: The following signatures couldn't be verified because the public ...
2
votes
1answer
2k views

Can't make Safenet PKI client “find” my etoken (12.04 LTS)

Well, I need to use the Etoken to digitally sign invoices in my country for my company. I have installed Safenet 8.1 software, and I am currently running Ubuntu 12.04. The PKI client (from Safenet) ...
1
vote
1answer
317 views

How do I digitally sign emails outgoing from different identities?

To send emails, I use one SMTP server, say domain1.com. But I use two identities that set up in Thunderbird, say agmenor@domain1.com and agmenor@domain2.com. For those who are not knowledgeable about ...
6
votes
4answers
22k views

How do I digitally sign a PDF?

I have already acquired a S/MIME certificate (a .p12 file) issued by an authority. Using it in Writer, I can digitally sign documents by following this procedure : How do I make a digital certificate ...
0
votes
1answer
802 views

Files/E-mail not signed with Kleopatra/KMail. gpg-agent

Important edit: The things almost work right know (I had put to open as a new session on system setings and reboot the computer). When I tried to sign and encript a file with Kleopatra the pinentry ...
3
votes
2answers
7k views

How do I make a digital certificate available to LibreOffice Writer for digital signatures?

I obtained a client certificate from CAcert through Firefox. I want to use that certificate to sign a document created with LibreOffice Writer. In Writer, I click File > Digital Signatures... to ...
2
votes
1answer
853 views

How to fix bad apt signatures after hardware clock reset

So recently I left my laptop unplugged for a few minutes, and since it has nearly zero battery, it cuts off without any graceful shutdown. After turning it on, it says (via BIOS) that the clock was ...
8
votes
4answers
35k views

GPG Invalid Signature

I am having problems with the following (in an attempt to remove hyperlinks, I have removed one of the "/" from the addresses): W: GPG error: http://archive.ubuntu.com oneiric Release: The following ...
1
vote
0answers
1k views

GPG error from apt-get [duplicate]

Possible Duplicate: What is the easiest way to resolve apt-get BADSIG GPG errors? Whenever I run apt-get update or apt-get install I get an error akin to the following: W: GPG error: http://...
2
votes
1answer
2k views

Ubuntu Extras keyring error [duplicate]

Recently I got lots of GPG errors and tried the following methods at various stages: sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3E5C1192 sudo apt-get install -reinstall ubuntu-...
3
votes
1answer
335 views

How can I attach different signatures to individual emails using the same account in Evolution?

I currently have Gmail set up as my default account with Evolution. I have various signatures that I would like to use and select prior to sending specific emails. Is there a way to: Create a ...