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diff --git a/src/content/docs/guides/symmetric-encrypt-decrypt.md b/src/content/docs/guides/symmetric-encrypt-decrypt.md new file mode 100644 index 0000000..c6b7ed5 --- /dev/null +++ b/src/content/docs/guides/symmetric-encrypt-decrypt.md @@ -0,0 +1,64 @@ +--- +title: Symmetric Encryption & Decryption +sidebar: + label: Symmetric Crypto +--- + +## 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. |