$ cat writeup.md…
$ cat writeup.md…
rev_kids20
Task: stripped 64-bit PIE ELF that RC4-encrypts a 24-byte input with hardcoded key 'blood' and compares to an embedded ciphertext. Solution: recognize the RC4 KSA/PRGA idioms (the 'ron'=Ron Rivest pun), then exploit RC4 symmetry to recover the flag by running RC4(key='blood', ciphertext).
Permission denied (requires tier.pro)
Sign in with GitHub, Discord, or Google to continue. No email required.
$sign in$ grep --similar