oleiwi, siham. “Audio Encryption and Decryption Using the Affine Cipher With the One-Time Pad (OTP)”. AlKadhim Journal for Computer Science 3, no. 3 (September 25, 2025): 28–44. Accessed October 3, 2025. https://jkceas.iku.edu.iq/index.php/JACEAS/article/view/116.