Using GNUPG for data encryption

One: Installation GnuPG

wget ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-2.1.1.tar.bz2

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./configure--prefix=/usr/local/gnupg && make && make check && make install

Here's an error.

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is due to the lack of appropriate components to download and install on the OK

ftp://ftp.gnupg.org/gcrypt/libgpg-error/
ftp://ftp.gnupg.org/gcrypt/libgcrypt/
ftp://ftp.gnupg.org/gcrypt/libassuan/
ftp://ftp.gnupg.org/gcrypt/libksba/
ftp://ftp.gnu.org/gnu/pth/

Installation steps no more nonsense./configure--prefix=xxx && make && make install

After installing these components, repeat the above steps to install the GNUPG.

Second: After the installation is complete to introduce the basic life of the next GnuPG make

Basic syntax: GPG [options] [filename]

Three: GnuPG How to use

First generate a pair of key pairs using the parameter "--gen-key"

--gen-key

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Select the key algorithm here

General default

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Select Key length

The longer the key is, the more secure it is, but the encryption is very slow. General default 1024 is available

Specify the validity period of the key

General choice for ordinary users never expires

and ask you for sure? Sure, Y.

Then you need to specify an ID to identify the selected key

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Then enter O to determine

When determined, it pops up.

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Enter the password you want to encrypt

At least 8 people

Then repeat the input again

And then you're sure to wait.

You will then be prompted to generate the key successfully

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IV: Establishment of revoked certificates

Because when we generate a key that fails or otherwise cannot continue to be used, it is possible to revoke the certificate to declare that the previous key is no longer in effect

Options for generating a recycled certificate--gen-revok

Command: GPG--output lemon_revoke.asc--gen-revok Lemon

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Are you sure you want to create a revocation certificate? Of course Y

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What's the reason for this? And then two straight-down returns.

And ask you, is that OK? Y

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Need to provide this user's private key

And then you're done, OK.

Then revoke the certificate to establish success

This article is from the "Champion Small Lemon" blog, please make sure to keep this source http://lemonit.blog.51cto.com/6043645/1597974

Using GNUPG for data encryption