Safe_RSA

Safe RSA

Cryptography - 250 points

Challenge

Now that you know about RSA can you help us decrypt this ciphertext? We don't have the decryption key but something about those values looks funky..

Solution

N is very big and e is very small, so a cube root can be used.

Exploit is when n is very big but e is very small

Flag

picoCTF{e_w4y_t00_sm411_7815e4a7}