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Questions tagged [pgp]

Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication.

Pretty Good Privacy (PGP) is a data encryption and decryption computer program that provides cryptographic privacy and authentication for data communication. PGP is often used for signing, encrypting and decrypting texts, E-mails, files, directories and whole disk partitions to increase the security of e-mail communications. It was created by Phil Zimmermann in 1991.

PGP and similar products follow the OpenPGP standard (RFC 4880) for encrypting and decrypting data.

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Encrypt large data using public key .ASC in php

I have a public key with extension .asc that I need to use to encrypt data and to send it in a plain text file. I am trying to accomplish this in a windows machine using php. Any ideas? Thanks,
Voltaire
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Using VBA excel to decrypt files PGP

I use a program that pulls encrypted files down each day from an FTP. I would like to create a macro in an excel document that will decrypt the file using PGP. Is this possible? I already know how to search the file for each specific file. I've…
mmichaelx
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Encrypted Communication - Avoid resending messages of third party

I want two parties to be able to send encrypted messages to each other. How can i make sure that a man-in-the-middle is not able to just resend encrypted messages? Of course the man-in-the-middle would not know what he send, but the receiver would…
alex
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PGP: Checking filetype and returning the extension using windows' FileSign.txt

I am actually looking for things like this: EncryptedFile.pgp ----decryption---> DecryptedFile(no extension) ----use some checking methods----> DecryptedFile.extension I know that there are alot of people that are asking the similar questions, but…
user2930173
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Gpg encrypt with public key

The php.net website contains information on how to encrypt the information with its own key. $gpg = new gnupg(); $gpg -> addencryptkey("8660281B6051D071D94B5B230549F9DC851566DC"); $enc = $gpg -> encrypt("just a test"); echo $enc; But if I wanted to…
Lughino
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DIDISOFT PGP file encryption

anybody knows how to change @"C:\Test\public_key.asc" from manually input to using openfiledialog? I tried to do that, there is this red zizag line under the code and when i put my mouse over, it says that it cannot convert System.IO.FileInfo to…
user2930173
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C# completely delete a file so that it cannot be retrieved

We have a bit of software that retrieves a file from a client, unencrypts it, processes it, encrypts the results, and sends it back. We use PGP keys (our private to decrypt, their public to encrypt). However it occurs to me that although we delete…
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Can I store a PGP key ring in a csp parameters key container?

i have been using PGP. I need to safely store our PGP keyring for our application that will be processing some pgp files. Can I believe that the PGP is Asymmetric cryptography and i should be able to store the information for keyring in a key…
user154366
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Seeing a list of recipients in an encrypted message

I'm using PGP to encrypt and send messages to friends. I've read up that the message is encrypted using a symetric key and then the symetric key is encrypted using the recipients public key. If you have multiple recipients then the symetric key is…
Mikey
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If I open pgp attachments in Outlook the file extension changes

I use Symantec Encryption Desktop v.10.3.0 and Microsoft Outlook v. 14.0.6129.5000 (32bit) in my pc. I use SEC to encrypt a zip file containing a text document and then I attach the encrypted archive (filename.zip.pgp) and send it through Microsoft…
Panayotis
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Why do I find PgpMarker when expecting PgpLiteralData in BouncyCastle?

Our application decrypt pgp-encrypted file using something adapted from KeyBasedFileProcessor.cs , similar to this one. Normally, this works okay, but we encountered issue with certain files. The problematic code is below: if (message is…
Louis Rhys
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Can I use PGP / GPG via JavaScript?

I am thinking about a simple, bullet proof password management solution (compare KeePass or lastpass) - only based on HTML and Javascript plus the PGP client package. I already found the WebPG Chrome Plugin which allows easy encryption and…
Alex
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PGP Command - Eyes Only

I tried to use the following command to redirect PGP output from command prompt: pgp --decrypt fileA.pgp --passphrase 'pp123' --eyes-only > std.txt 2> err.txt What I can get is: std.txt: NOTHING err.txt: fileA.pgp:decrypt (0:output file…
littlecodefarmer758
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How do I find out whether a servers certificate is of type x.509 (standard)

Is there any tool available that verifies whether it's a PGP, x.509, etc. certificate? I know that I can view the details of installed certificates via the web browser (IE, FireFox, ...) and the Mircrosoft Management Console (MMC), but does a…
My-Name-Is
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PGP decrypt file via ProcessStartInfo

I'm using the technique described on this page to decrypt a file PGP. But once in a while you will see a popup to put the passphrase in command despite having indicated their passphrase to decrypt the file. Has anyone had a similar problem? Thank…
Ricardo Felgueiras
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