綾小路龍之介の素人思考

[pgp] 秘密鍵と公開鍵のペアを作成

PGPの秘密鍵と公開鍵はペアで作成される。

ペアを作成するには以下。追加は自動的に行われる。

$ gpg --gen-key
gpg (GnuPG) 1.4.10; Copyright (C) 2008 Free Software Foundation, Inc.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

Please select what kind of key you want:
   (1) RSA and RSA (default)
   (2) DSA and Elgamal
   (3) DSA (sign only)
   (4) RSA (sign only)
Your selection?
RSA keys may be between 1024 and 4096 bits long.
What keysize do you want? (2048) 4096
Requested keysize is 4096 bits
Please specify how long the key should be valid.
         0 = key does not expire
      <n>  = key expires in n days
      <n>w = key expires in n weeks
      <n>m = key expires in n months
      <n>y = key expires in n years
Key is valid for? (0)
Key does not expire at all
Is this correct? (y/N) y

You need a user ID to identify your key; the software constructs the user ID
from the Real Name, Comment and Email Address in this form:
    "Heinrich Heine (Der Dichter) <heinrichh@duesseldorf.de>"

Real name:
Name must be at least 5 characters long
Real name: **********************
Email address:
Comment:
You selected this USER-ID:
    "**********************"

Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? O
You need a Passphrase to protect your secret key.

We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 276 more bytes)
.+++++

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 195 more bytes)
......+++++
We need to generate a lot of random bytes. It is a good idea to perform
some other action (type on the keyboard, move the mouse, utilize the
disks) during the prime generation; this gives the random number
generator a better chance to gain enough entropy.

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 231 more bytes)
...+++++

Not enough random bytes available.  Please do some other work to give
the OS a chance to collect more entropy! (Need 229 more bytes)
..........+++++
gpg: key 740166A8 marked as ultimately trusted
public and secret key created and signed.

gpg: checking the trustdb
gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
gpg: depth: 0  valid:   2  signed:   0  trust: 0-, 0q, 0n, 0m, 0f, 2u
pub   4096R/******** ****-**-**
      Key fingerprint = **** **** **** **** ****  **** **** **** **** ****
uid                  **********************
sub   4096R/******** ****-**-**

リファレンス

  1. S/MIMEでセキュアな電子メール環境をつくる!
  2. 研修で教えてくれない!:第18回「PGP? S/MIME? 電子署名の違いを学ぶ」 - ITmedia Biz.ID
  3. What is "PGP"
  4. How to add and delete key components with GnuPG

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ChangeLog

  1. Posted: 2010-04-12T07:35:41+09:00
  2. Modified: 2010-04-12T07:35:41+09:00
  3. Generated: 2017-03-05T23:09:33+09:00