Make sure you select all the characters, then press the right mouse button, and select “Copy”. As probably all the characters are not displayed in the box at once, check the whole using the slide bar. The location to save is arbitrary, but avoid the desktop or a place that others can easily access by file sharing, etc.
Click on the “Save private key” button to save the private key in your PC. Since it is different from the password of your real account, never specify the same one. Passphrase can be specified even in a long sentence (even spaces can be used), so it is recommended that you set a longer passphrase to an extent that you do not forget. Be sure to enter your passphrase in the “Key passphrase” and “Cofirm passphrase” fields. If necessary, specify a comment to be displayed during public key authentication. The “Key comment” field can be specified arbitrarily. To save the generated keys, do as follows respectively. After the random number is generated, a key pair (public key and private key) will be generated based on it. Continue to move the mouse arbitrarily until it becomes fully green. A random number is generated by moving the mouse within the area, and the green bar increases. Select “RSA (SSH-2 RSA)” in the “Parameters” section, specify “2048” as it is in the “Number of bits in a generated Key” field and press the “Generate” button. When you start PuTTYgen, the “PuTTY Key Generator” dialog box will be displayed. If you do not install WinSCP (or did not install PuTTYgen together when installing WinSCP) you can also download PuTTYgen directly at the following site:ĭownload puttygen.exe from this site, save it in a suitable place (eg desktop, etc.), and double click it to start it. 
You can download WinSCP at the following site to install it:.If you already have WinSCP installed on your PC, start up WinSCP once, click on “Tools” button and select “Run PuTTYgen” to start up PuTTYgen. PuTTYgen is normally installed together when WinSCP is installed.The passphrase of your private key is different from the password of your real account, so never specify the same one.When generating a key, be sure to set a passphrase without fail. Pay special attention to its location and management so that it will not be abused by other people. Take care when handling a private key.A public key have to be put on the server side, and a private key have to be put on your PC (the client side).When the message “Server refused our key” appears and connection cannot be established.Logging-in by public key authentication with WinSCP.
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