Asymmetric cryptography

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This model is the opposite of the previous one: two keys are used, one for the client and one for the server, to encrypt the transferred data.

The keys are called public and private, thus forming the combination necessary to generate the SSH and its security protocol.

In this model, the public key is distributed openly and shared. However, it is not possible to discover the private key from it.

This happens thanks to a process that works as follows: messages encrypted by public keys can only be decrypted by the private key of the same machine.

The private key, throughout this process, must remain inaccessible to third parties, being in the possession and use of the client.

This is essential, since its use allows lithuania mobile database decryption of public keys, and thus access to the transferred content.

Hashing
Hashing is a one-way cryptography method used in SSH. This practice consists of creating a hash, using an algorithm, to ensure that the message will be protected in a specific form of cryptography and authentication codes.

The process is done using HMACs (Hash-based Message Authentication Codes), ensuring that there is no violation in the codes that will be received by the remote server.

How to access the SHH protocol?
The SSH protocol can be accessed securely using two main methodologies: simple login with username and password, or with a key pair. Next, understand how each of them is executed and what processes guarantee the security of transfers.