Algorithm 1: Secure password transmission.

Input: Steganography password P, User’s OTP K Output: Decrypted password P for sensitive data access 1  $C_P\leftarrow P\oplus K$; 2  $C_P$→ Transmit (B1 → B2); 3  $B2$← Wait; 4  $P\leftarrow C_P\oplus K$; 5  ⇒ Access sensitive data;