Showing posts with label 共通鍵暗号. Show all posts
Showing posts with label 共通鍵暗号. Show all posts

Thursday, June 9, 2016

Robert Miles : Public Key Cryptography

Robert Miles



  • Public-key cryptography (公開鍵暗号)

Richard Mortier: Encryption and Security Agencies

Richard Mortier

ssh-keygen: Generating Private and Public Keys (公開鍵と秘密鍵を作る)


Commands:

$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/username/.ssh/id_rsa): 
/Users/username/.ssh/id_rsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /Users/username/.ssh/id_rsa.
Your public key has been saved in /Users/username/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:xCFSgzCQb5J5yjX911Xvdav018XVmXbfibdoEYxjXs0


$ ls -l .ssh/
total 24
-rw-------  1 username  staff  1679 Jun  4  2014 id_rsa
-rw-r--r--  1 username  staff   394 Jun  4  2014 id_rsa.pub
-rw-r--r--  1 username  staff  1118 May 16 10:26 known_hosts


$ cat .ssh/id_rsa
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----


$ cat .ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yd2EAAAADAQABAAABAQDNN6bT33VQ4CXWmFBx0H428yw/SHwARc91vc/Z/CExXrjUb3uhUaHb4EHCl7/pXpJgyyRr6dE5sl2FlE3jPWua2ooZ3uXof7NkiK2WMPVDpWZeKE2zxynEg5yPw41AtwyxI+Y15Hbt4WNEEhXsHunCu+ekGf3d3w67VCxGz8aA1Tbxe6zOs3e9VXNrgQW99ycD5xtXAXh8x5Jt+HhgAma5P7+gQ0rSMKSYsxKxr7TcR1k5yg9uC02u8NgqjuQDXoqLO9I+CGxv1rfFyl6n8fUlclPFgftJzYK9JuzHxEl3yMFSH/izSviYKp0MTph1dH3UWa5DiIAf8blDmZVkPCkT OpenShift-Key


Vocabularies:
  • Public-key cryptography (公開鍵暗号)
  • Symmetric-key algorithm (共通鍵暗号)