Multipage Recyclings: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Aes
20 postsPermuted
Permuted: exploit the RSA structure, recover the missing secret, and decrypt the flag.
Whole Lotta Candy
Whole Lotta Candy: abuse the AES misuse, derive the missing key material, and decrypt the flag.
MSS
MSS: exploit the RSA structure, recover the missing secret, and decrypt the flag.
Arranged
Arranged: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Bloom Bloom
Bloom Bloom: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Iced Tea
Iced Tea: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Android-in-the-Middle
Android-in-the-Middle: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Embryonic Plant
LostKey
ReMeeting the Wheel
XorXorXor
Rhome
Perfect Synchronization
Perfect Synchronization: recover the Vigenere key from the ciphertext, decrypt the message, and verify the flag.
RsaCtfTool
RsaCtfTool: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Flippin Bank
Flippin Bank: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.
Hybrid Unifier
Hybrid Unifier: abuse the AES misuse, derive the missing key material, and decrypt the flag.
Inizialization
Inizialization: abuse the AES misuse, derive the missing key material, and decrypt the flag.
SPG
SPG: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.
Flip
Flip: abuse the AES misuse, derive the missing key material, and decrypt the flag.