P7S File Extension

TIP: Run a Free Scan for .P7S File Errors.

A .P7S file is a PKCS7 (Public Key Cryptographic Signature, type 7) digital signature, which simply proves that someone has sent the message and nobody has changed it since.

It is best opened by some plugin for your email program.

Check with the program vendor or source for updates to handle this kind of security option.

How to Open .P7S (PKCS #7 Digitally Signed Message) files

Windows

Unknown

Mac OS

Unknown

Linux

Unknown

Additional extension information

File type:	Text
Popularity:	Not specified
Author:	Unknown
MIME type:	Not specified

Visitor comments

Essar

2009-03-30 08:55:07

Someone sent me emails which have .P7S attachments but I cant open them in any programs. The extension is P7S Signature and Certificates.I'm trying to download a program which can open this kind of document, but I cant find one.

sukhvir

2011-03-26 09:31:52

I couldn't open an attached file because of the .p7s extension - could anyone tell me how I can open the .p7s extension attachment? Which software is used to open the p7s file?

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PKCS #7 Digitally Signed Message