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7
votes
4answers
3k 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 ...
1
vote
2answers
210 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 ...
0
votes
0answers
12 views

Not able to update packages on Ubuntu 13.04 [duplicate]

I get the following error $ sudo apt-get update E: GPG error: http://in.archive.ubuntu.com raring Release: The following signatures were invalid: NODATA 1 ...
0
votes
0answers
132 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
122 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 ...
0
votes
2answers
5k 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 ...
0
votes
0answers
49 views

ima-evm in 14.04 server?

I was looking for an Ubuntu-packaged ima-evm-utils for Trusty server (amd64), but no luck. (It is available in 14.10.) While I can build this from source, it would be better to have a supported ...
1
vote
1answer
45 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
324 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 ...
1
vote
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, I rebooted and now I can't access the drive that has around 400gb of data because ...
3
votes
1answer
59 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 ...
13
votes
2answers
672 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
365 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: ...
0
votes
1answer
352 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
7k 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
41 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 ...
7
votes
1answer
3k 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
132 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
1k 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
284 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 ...
2
votes
4answers
14k 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 ...
-1
votes
1answer
750 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
5k 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
821 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 ...
7
votes
4answers
32k 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: ...
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 ...
3
votes
1answer
320 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 ...