This commit is contained in:
Thomas von Dein
2016-10-20 23:12:00 +02:00
parent 94ea152460
commit f664cc24c4
9 changed files with 1100 additions and 1153 deletions

View File

@@ -13,29 +13,29 @@
=head1 DESCRIPTION
B<Pretty Curved Privacy> (pcp1) is a commandline utility which can
be used to encrypt files. B<pcp1> uses elliptic curve cryptography
be used to encrypt files. B<pcp1> uses eliptc curve cryptography
for encryption (CURVE25519 by Dan J. Bernstein). While CURVE25519
is not a worldwide accepted standard it hasn't been compromised by
is no worldwide accepted standard it hasn't been compromised by
the NSA - which might be better, depending on your point of view.
B<Caution>: since CURVE25519 is not an accepted standard, B<pcp1> has
to be considered experimental software. In fact, I wrote it just
B<Caution>: since CURVE25519 is no accepted standard, B<pcp1> has
to be considered as experimental software. In fact, I wrote it just
to learn about the curve and see how it works.
Beside some differences it works like B<GNUPG>. So, if you already
know how to use gpg, you'll feel almost at home.
know how to use gpg, you'll feel almost home.
=head1 QUICKSTART
Lets say, Alicia and Bobby want to exchange encrypted messages.
Here's what they need to do.
Here's what the've got to do.
First, both have to create a secret key:
First, both have create a secret key:
Alicia Bobby
pcp1 -k pcp1 -k
After entering their name, email address, and a passphrase to protect
After entering their name, email address and a passphrase to protect
the key, it will be stored in their B<vault file> (by default ~/.pcpvault).
Now, both of them have to export the public key, which has to be
@@ -46,18 +46,18 @@ a derived public key especially for the recipient:
Alicia Bobby
pcp1 -p -r Bobby -O alicia.pub pcp1 -p -r Alicia -O bobby.pub
They've got to exchange the public key somehow (which is not my
problem at the moment, use ssh, encrypted mail, etc). Once exchanged,
They've to exchange the public key somehow (which is not my
problem at the moment, use ssh, encrypted mail, whatever). Once exchanged,
they have to import it:
Alicia Bobby
pcp1 -K -I bobby.pub pcp1 -K -I alicia.pub
They will see a response when this is done:
They will see a response as this when done:
key 0x29A323A2C295D391 added to .pcpvault.
Now, Alicia finally writes the secret message, encrypts it, and
Now, Alicia finally writes the secret message, encrypts it and
sends it to Bobby, who in turn decrypts it:
Alicia Bobby
@@ -100,7 +100,7 @@ realistic example:
ssh remote cat file | pcp1 -ez | mailx -s 'as requested' bob@somewhere
Here we encrypt a file symmetrically without downloading it from a
here we encrypt a file symmetrically without downloading it from a
remote ssh server and sending the encrypted result via email to
someone.