ECB MODE PATTERN LEAKAGE SIMULATION

Electronic Codebook (ECB) Pattern Vulnerability

Demonstrates how Electronic Codebook (ECB) mode encrypts identical plaintext blocks into identical ciphertext blocks without initialization vectors, preserving underlying image patterns and creating critical security leaks.

Deterministic Block Encryption Hazard

1. Original Plaintext Image

Structured bitmap layout before encryption.

2. ECB Mode Ciphertext (Leaked!)

Pattern intact! Identical blocks map to identical ciphertext.

3. CBC Mode Ciphertext (Random Noise)

Pattern destroyed! IV and block chaining introduce pseudorandomness.