What's a key pair?

A key pair consists of two cryptographic keys: a public key and a private key. These two keys are closely related and are used in various cryptographic applications, especially asymmetric encryption and digital signatures.

Here is an explanation of how a key pair works:

• Public key

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  The public key is exactly what its name suggests - it is publicly available and can be given to anyone. This key is used to encrypt data or verify digital signatures. When someone wants to send you confidential data, they use your public key to encrypt the data. Only you, the owner of the corresponding private key, can decrypt this encrypted data.
• Private key

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  The private key is secret and should never be shared with anyone else. This key is used to decrypt encrypted data or to create digital signatures. If you have received a message encrypted with your public key, use your private key to decrypt the data. Similarly, you use your private key to create digital signatures that others can verify using your public key.

A key pair is used in asymmetric cryptography to ensure the security of data communication and transmission. The public key allows others to send you encrypted messages that can only be decrypted using your private key. This ensures the confidentiality of the communication. In addition, using your private key allows you to create digital signatures that ensure the authenticity and integrity of data.

It is of utmost importance to keep the private key safe, as accessing it can compromise the security of the entire system. The public key, on the other hand, can be shared without any security risk because it is only used to encrypt or decrypt data, not to create digital signatures.

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