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diff --git a/manual/basic/symmetric-encrypt-decrypt.md b/manual/basic/symmetric-encrypt-decrypt.md deleted file mode 100644 index 7436fd02..00000000 --- a/manual/basic/symmetric-encrypt-decrypt.md +++ /dev/null @@ -1,60 +0,0 @@ -# Symmetric Encryption & Decryption of Text & File - -## About Symmetric Encryption & Decryption - -Symmetric encryption, in contrast to asymmetric encryption, uses a single key -for both the encryption of plaintext and the decryption of ciphertext. This -method is characterized by its simplicity and speed, making it a popular choice -for encrypting large volumes of data or for scenarios where the sharing of keys -between the sender and receiver can be securely managed. GpgFrontend provides a -user-friendly interface for implementing symmetric encryption, streamlining the -process for users who may not be familiar with the intricacies of cryptographic -operations. - -The process of symmetric encryption with GpgFrontend begins when a user opts to -encrypt data without selecting a recipient's public key from the Key Toolbox. -This action signals the software to use symmetric encryption for the task at -hand. At this point, the user is prompted to create a password. This password -acts as the encryption key, transforming the plaintext into ciphertext through a -cryptographic algorithm. It's crucial that this password is strong and unique, -as the security of the encrypted data directly depends on the password's -complexity and unpredictability. - -Once the password is established, GpgFrontend proceeds to encrypt the data. The -resulting ciphertext can only be decrypted with the exact password used for its -encryption. This means that anyone who wishes to access the encrypted data must -know the password, highlighting the importance of securely sharing this password -between the sender and receiver. - -Decrypting symmetrically encrypted data with GpgFrontend requires the same -password used during the encryption phase. When the 'Decrypt' function is -initiated, the software prompts the user to enter the password. Upon successful -authentication with the correct password, the software decrypts the ciphertext -back into readable plaintext. This decryption process, like encryption, is -straightforward and efficient, but the security of the data relies entirely on -the password's confidentiality. - -Symmetric encryption is particularly useful in scenarios where encrypted data -needs to be stored securely or transmitted over a secure channel, and where the -overhead of managing public and private keys is not desirable. However, the -challenge of securely exchanging the password between the sender and receiver -cannot be understated. If this password is intercepted or guessed by an -unauthorized party, the encrypted data's security is compromised. - -In summary, GpgFrontend's support for symmetric encryption provides a powerful -tool for users needing to secure their data with a password. This method is -distinguished by its reliance on a single password for both encryption and -decryption, offering a balance between simplicity and security. Users must -exercise caution in creating a strong password and ensure its secure exchange to -maintain the confidentiality and integrity of their encrypted data. Symmetric -encryption with GpgFrontend is a testament to the versatility of cryptographic -practices, catering to a wide range of security needs with user-friendly -solutions. - -## How to use it? - -Symmetric encryption is initiated when you click the 'Encrypt' button without -selecting any key in the Key Toolbox. For this type of encryption, a password -must be established for the encryption process. Subsequently, to decrypt the -data, you will need to provide the same password that was used during the -encryption phase. |