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The PuTTYgen program is part of PuTTY, an open source networking client for the Windows platform.
To generate an SSH key pair on Windows using the PuTTYgen program:
- Download and install PuTTY or PuTTYgen.To download PuTTY or PuTTYgen, go to http://www.putty.org/ and click the You can download PuTTY here link.
- Run the PuTTYgen program.
- Set the Type of key to generate option to SSH-2 RSA.
- In the Number of bits in a generated key box, enter 2048.
- Click Generate to generate a public/private key pair.As the key is being generated, move the mouse around the blank area as directed.
- (Optional) Enter a passphrase for the private key in the Key passphrase box and reenter it in the Confirm passphrase box.Note:While a passphrase is not required, you should specify one as a security measure to protect the private key from unauthorized use. When you specify a passphrase, a user must enter the passphrase every time the private key is used.
- Click Save private key to save the private key to a file. To adhere to file-naming conventions, you should give the private key file an extension of
.ppk
(PuTTY private key).Note:The.ppk
file extension indicates that the private key is in PuTTY's proprietary format. You must use a key of this format when using PuTTY as your SSH client. It cannot be used with other SSH client tools. Refer to the PuTTY documentation to convert a private key in this format to a different format. - Select all of the characters in the Public key for pasting into OpenSSH authorized_keys file box.Make sure you select all the characters, not just the ones you can see in the narrow window. If a scroll bar is next to the characters, you aren't seeing all the characters.
- Right-click somewhere in the selected text and select Copy from the menu.
- Open a text editor and paste the characters, just as you copied them. Start at the first character in the text editor, and do not insert any line breaks.
- Save the text file in the same folder where you saved the private key, using the
.pub
extension to indicate that the file contains a public key. - If you or others are going to use an SSH client that requires the OpenSSH format for private keys (such as the
ssh
utility on Linux), export the private key:- On the Conversions menu, choose Export OpenSSH key.
- Save the private key in OpenSSH format in the same folder where you saved the private key in
.ppk
format, using an extension such as.openssh
to indicate the file's content.
- Step 1: Generate SSH Keys
- Logging In
Provide a passphrase, for example “password”, when creating the key pairs. # ssh-keygen Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/idrsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/idrsa. Key generation works fine, but I can't find a way to generate keys without a passphrase. Every class and every way to generate keys in BounceyCastle needs a passphrase. Using an empty passphrase results in gpg still asking me for it when decrypting/signing something, passing null throws an exception on key generation. Generate SSH keys on Linux/Mac. Generate a public/private key pair: Log in to the computer you will use to access Sitehost, and then use the command line to generate a key pair. To generate RSA keys, on the command line, enter: ssh-keygen -t rsa; You will be prompted to supply a filename (for saving the key pair) and a passphrase (for.
Overview
OSG Connect requires SSH-key-based logins. You need to follow a two-step process to set up the SSH key to your account.
- Generate a SSH key pair.
- Add your public key to the submit host by uploading it to your OSG Connect user profile (via the OSG Connect website).
After completing the process, you can log in from a local computer (your laptop or desktop) to the OSG Connect login node assignedusing either ssh or an ssh program like Putty -- see below for more details on logging in.
NOTE: Please do not edit the authorized keys file on the login node.
Step 1: Generate SSH Keys
We will discuss how to generate a SSH key pair for two cases:
- 'Unix' systems (Linux, Mac) and certain, latest versions of Windows
- Older Windows systems
Please note: The key pair consist of a private key and a public key. You will upload the public key to OSG Connect, but you also need to keep a copy of the private key to log in!
You should keep the private key on machines that you have direct access to, i.e. your local computer (your laptop or desktop).
You should keep the private key on machines that you have direct access to, i.e. your local computer (your laptop or desktop).
brew install ssh-copy-idAlternatively, you can paste in the keys using SSH:. Can we generate ssh keys with read only access internet. cat /.ssh/idrsa.pub ssh demo@ 198.51.100.0 'mkdir -p /.ssh && chmod 700 /.ssh && cat /.ssh/authorizedkeys'No matter which command you chose, you may see something like: The authenticity of host '198.51.100.0 (198.51.100.0)' can't be established.RSA key fingerprint is b1:2d:33:67:ce:35:4d:5f:f3:a8:cd:c0:c4:48:86:12.Are you sure you want to continue connecting (yes/no)?
Unix-based operating system (Linux/Mac) or latest Windows 10 versions
Open a terminal on your local computer and run the following commands:
The last command will produce a prompt similar to
Unless you want to change the location of the key, continue by pressing enter.Now you will be asked for a passphrase. Enter a passphrase that you will be able to remember and which is secure:
Openssl Generate Rsa Key Pair Without Passphrase
When everything has successfully completed, the output should resemble thefollowing:
The part you want to upload is the content of the
.pub
file (~/.ssh/id_rsa.pub)Windows, using Putty to log in
If you can connect using the
ssh
command within the Command Prompt (Windows 10 build version 1803 and later), please follow the Mac/Linux directions above. If not, continue with the directions below. - Open the
PuTTYgen
program. You can downloadPuttyGen
here: PuttyGen Download Page, scroll down until you see theputtygen.exe
file. - For Type of key to generate, select RSA or SSH-2 RSA.
- Click the 'Generate' button.
- Move your mouse in the area below the progress bar.When the progress bar is full, PuTTYgen generates your key pair.For more information, see.After a BitLocker recovery has been initiated, users can use a recovery password to unlock access to encrypted data. Generate bitlocker recovery key from password. You must consider both self-recovery and recovery password retrieval methods for your organization.When you determine your recovery process, you should:.Become familiar with how you can retrieve the recovery password.
- Type a passphrase in the 'Key passphrase' field. Type the same passphrase in the 'Confirm passphrase' field. You can use a key without a passphrase, but this is not recommended.
- Click the 'Save private key' button to save the private key. You must save the private key. You will need it to connect to your machine.
- Right-click in the text field labeled 'Public key for pasting into OpenSSH authorized_keys file' and choose Select All.
- Right-click again in the same text field and choose Copy.
Step 2: Add the public SSH key to login node
To add your public key to the OSG Connect log in node:
- Go to www.osgconnect.net and sign in with the institutional identity you used when requesting an OSG Connect account.
- Click 'Profile' in the top right corner.
- Click the 'Edit Profile' button located after the user information in the left hand box.
- Copy/paste the public key which is found in the
.pub
file into the 'SSH Public Key' text box. The expected key is a single line, with three fields looking something likessh-rsa ASSFFSAF.. user@host
. If you used the first set of key-generating instructions it is the content of~/.ssh/id_rsa.pub
and for the second (using PuTTYgen), it is the content from step 7 above. - Click 'Update Profile'
The key is now added to your profile in the OSG Connect website. This will automaticallybe added to the login nodes within a couple hours.
Logging In
After following the steps above to upload your key and it's been a few hours, you should be able to log in to OSG Connect.
Determine which login node to use
Before you can connect, you will need to know which login node your account is assigned to. You can find this information on your profile from the OSG Connect website.
- Git ssh generate key windows. Go to www.osgconnect.net and sign in with your CILogin.
- Click 'Profile' in the top right corner.
- The assigned login nodes are listed in the left side box. Make note of the address of your assigned login node as you will use this to connect to OSG Connect.
For Mac, Linux, or newer versions of Windows
Open a terminal and type in:
It will ask for the passphrase for your ssh key (if you set one) and then you should be logged in.
For older versions of Windows
On older versions of Windows, you can use the Putty program to log in.
- Open the
PutTTY
program. If necessary, you can download PuTTY from the website here PuTTY download page. - Type the address of your assigned login node as the hostname (see 'Determine which login node to use' above).
- In the left hand menu, click the '+' next to 'SSH' to expand the menu.
- Click 'Auth' in the 'SSH' menu.
- Click 'Browse' and specify the private key file you saved in step 5 above.
- Click 'Open' and provide your passphrase when prompted to do so.
Java Generate Rsa Key Pair
Getting Help
For assistance or questions, please email the OSG User Support team at [email protected] or visit the help desk and community forums.
Generate Rsa Key Pair Online
This page was updated on Apr 06, 2020 at 09:48 from start/account/generate-add-sshkey.md.