tag

Aes

20 posts
crypto

Multipage Recyclings

Multipage Recyclings: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Permuted

Permuted: exploit the RSA structure, recover the missing secret, and decrypt the flag.

crypto

Whole Lotta Candy

Whole Lotta Candy: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

MSS

MSS: exploit the RSA structure, recover the missing secret, and decrypt the flag.

crypto

Arranged

Arranged: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Bloom Bloom

Bloom Bloom: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Iced Tea

Iced Tea: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Android-in-the-Middle

Android-in-the-Middle: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Perfect Synchronization

Perfect Synchronization: recover the Vigenere key from the ciphertext, decrypt the message, and verify the flag.

crypto

RsaCtfTool

RsaCtfTool: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Flippin Bank

Flippin Bank: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.

crypto

Hybrid Unifier

Hybrid Unifier: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

Inizialization

Inizialization: abuse the AES misuse, derive the missing key material, and decrypt the flag.

crypto

SPG

SPG: reconstruct the generator state, derive the AES material, and decrypt the final ciphertext.

crypto

Flip

Flip: abuse the AES misuse, derive the missing key material, and decrypt the flag.