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When configuring a switch to use SSH for virtual terminal connections what is the purpose of the crypto key generate rsa command?
Wiki User
∙ 12y ago
This is a fundamental part of public key cryptography. In order to make an encrypted connection, you need a public and private key (a keypair). You hand out a public key to devices who want to speak SSH to you which they can use to encrypt a message. Only your private key can decrypt it. Event endpoint which speaks SSH needs to have a unique public/private keypair in order to ensure that sites cannot decrypt each other's data.
So, before you can run SSH for the first time, you need to generate a keypair. That is what the command does. RSA is one of the most popuplar algorithms to generate a public-private keypair.
Wiki User
∙ 12y ago
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