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Public Key And Private Key
Imagine you have a locked box. You give the public key to anyone who wants to send you a message. They can use this key to lock a message inside the box, but only you, with the private key, can unlock it.
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Use
Public Key: Widely shared, used for encryption.
Private Key: Kept secret, used for decryption.
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Different
1. Encryption: Someone uses the public key to encrypt a message.
2. Decryption: Only the person with the corresponding private key can decrypt and read the message.
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Exam
Online Banking: Your bank provides a public key to encrypt your login credentials.
Digital Signatures: You use your private key to sign documents, and others can verify your signature using your public key.
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