A decryptionDecryption transforms ciphertext to reveal the original plaintext. Encryption is the reverse process to decryption. Read More algorithm is an algorithm used to decrypt encrypted data. In other words, it is a mathematical process to transform ciphertextCiphertext is encrypted text that requires a decryption key to read. Converting ciphertext into readable plaintext requires the appropriate key... Read More back into readable plaintextPlaintext is the data that a computer system processes without encryption. Plaintext typically takes the form of characters, numbers, or... Read More. Methods of encryptionEncryption is the process of encoding an original form of information called plaintext using an algorithm called a cipher. The... Read More/decryption include symmetric-key algorithms (e.g., DES and AES) and public-key algorithms (e.g., RSA).