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Encryption is the process of scrambling a message's contents to restrict access to certain individuals. There are two types of encryption: symmetric and asymmetric. In symmetric encryption, Alice encrypts a sensitive document using a password and sends it to Bob. However, Bob cannot access the document without knowing the passphrase, creating a challenge for Alice in sharing it securely. Sending the passphrase via email poses risks, as others could intercept it and decrypt their messages. This highlights the necessity for a secure method of passphrase sharing, paving the way for the development of asymmetric encryption to address such vulnerabilities.