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Linux Authentication

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Evolution (PGP)

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Written by Mr. Sontaya Photibut Saturday, 02 May 2009 19:10

การคอนฟิค PGP สำหรับ Evolution Email Client

การคอนฟิคทำได้ด้วยกัน 2 แบบนะครับคือ

1. Graphical User Interface (GUI)

2. Command Line Interface (CLI)

วันนี้ขอแนะนำเป็น CLI นะครับ

1. เปิดโปรแกรม Gnome Terminal ขึ้นมาครับ

# gpg --gen-key

<Enter>

"Please select what kind of key you want:"

(1) DSA and Elgamal (default) <-- เลือกตัวนี้โดยกด 1

Your selection? 1 <Enter> 

What keysize do you want ?  (2048) ใส่ 1024 <Enter>

"Please specify how long the key should be valid."

0 = key does not expire 

Key is valid for? (0) ใส่ 0 <Enter>

Is this correct? (y/N) yใส่ y <Enter >

Real name : first_lastname <Enter>

Email address: youremail@domain <Enter>

Bomment:  <Enter> 

Change (N)ame, (C)omment, (E)mail or (O)key/(Q)uit? o <Enter>

Enter passphrase: ************** 

Repeat passphrase : ************** 

 
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 284 more bytes)
 

ไปดื่มกาแฟเล่นๆ รอได้นะ Okay ถ้าเสร็จแล้วก็มาต่อเลยครับ

 2. สร้าง public key 

 # gpg --export -a "UserName" > public.key

- กด Alt + F2 (nautilis)

- จะเห็นไฟล์ public.key

- คลิกขาวมือ เลือกโปรแกรมแก้ไข

- Copy code (Ctrl+A) ตามด้วย (Ctrl+C)

- เปิดเว็บ http://pgp.mit.edu

- วาง Code ที่ช่อง

- คลิก Submit this key to the keyser

- กลับมาที่ http://pgp.mit.edu โดยกดปุ่ม Back

- ค้นหา "First และ Lastname"

- จด KeyID ไว้เพื่อที่จะนำไปใช้ใน Evolution (Highlight and copy your keyID)

3. เปิดโปรแกรม Evolution ขึ้นมา

-  Edit -> Preferences ( Shift+Ctrl+S)

- เลือก email account ถ้ามีมากว่าหนึ่งชื่อ แล้วคลิกปุ่ม Edit

- ไปที่แท็บ Security

    PGP/GPG Key ID: <keyID>

- คลิก OK

- คลิก Close

การใช้งาน

- คลิกปุ่ม New บน Evolution

- ไปที่แท็บ Security เลือก PGP Encrypt

 

เป็นอันเสร็จครับ. 

 

 


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