cryptoPromedium

Woow

duckerz

Task: XOR encryption with repeating key and repeated plaintext. Solution: Factor ciphertext length to find key_size, build bipartite graph constraints, solve via BFS with single-byte brute-force, decode Base64 result.

$ ls tags/ techniques/
brute_forcebase64xorrepeating_keyconstraint_propagation
xor_equation_analysisbipartite_graph_bfskey_offset_bruteforce
🔒

Permission denied (requires tier.pro)

Sign in to access full writeups

Sign in with GitHub to continue. No email required.

$sign in

$ grep --similar

Similar writeups