Questions

How can I use public and private keys in PuTTY?

How can I use public and private keys in PuTTY?

Use Existing Public and Private Keys

  1. Click Conversions from the PuTTY Key Generator menu and select Import key .
  2. Navigate to the OpenSSH private key and click Open .
  3. Under Actions / Save the generated key , select Save private key .
  4. Choose an optional passphrase to protect the private key.

How does SSH private and public keys work?

How Does SSH Use Private Keys and Public Keys? An SSH key relies upon the use of two related keys, a public key and a private key, that together create a key pair that is used as the secure access credential. The private key is secret, known only to the user, and should be encrypted and stored safely.

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How are public and private keys shared?

In public key cryptography, every public key matches to only one private key. Together, they are used to encrypt and decrypt messages. If you encode a message using a person’s public key, they can only decode it using their matching private key.

Can 2 private keys have the same public key?

If you want to use asymmetric cryptography, you cannot have multiple private key and one public key. These keys work as a pair of key. What is encrypted using the public key can only be decrypted by the private key and this key only.

Can two private keys have same public key?

Yes, you can have two keys generate the same address.

Where are PuTTY private keys stored?

OpenSSH clients on Linux and other Unix-based operating systems store the key fingerprints in ~/. ssh/known_hosts file while PuTTY in Windows stores this information in the system registry.

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How do I get private key in PuTTY?

To download PuTTY or PuTTYgen, go to http://www.putty.org/ and click the You can download PuTTY here link.

  1. Run the PuTTYgen program.
  2. Set the Type of key to generate option to SSH-2 RSA.
  3. In the Number of bits in a generated key box, enter 2048.
  4. Click Generate to generate a public/private key pair.

How do SSH key pairs work?

SSH key pairs can be used to authenticate a client to a server. The client creates a key pair and then uploads the public key to any remote server it wishes to access. This is placed in a file called authorized_keys within the ~/. ssh directory in the user account’s home directory on the remote server.

Where are SSH private keys stored?

ssh/id_rsa
By default, the private key is stored in ~/. ssh/id_rsa and the public key is stored in ~/. ssh/id_rsa. pub .