Systems and methods for data encryption, decryption, and authentication

A computer-implemented method for generating a ciphertext may include (1) generating a header for the ciphertext, including data configuring one or more permissions for decrypting the ciphertext; (2) generating instructions for the ciphertext; (3) generating a ciphertext body, which may include receiving data to be encrypted, retrieving at least one encryption value set (which may include a mixing scheme, a bit value, a first matrix size, a second matrix size, an encryption decider, and a decryption decider), generating at least one character matrix based on the data to be encrypted, executing at least one transformation operation on the at least one character matrix to generate the ciphertext body based on the at least one encryption value set, and generating at least one decryption value set based on the at least one encryption value set; and (4) compiling the header, the instructions, and the ciphertext body into the ciphertext.