LOLZZ-CTF-WriteUps

Sentir

.NET AoT generated executable.

Internal Logic:

1. Convert the input into UTF-8 bytes
2. XOR with keys
3. Convert the bytes into base64 string
4. Compare the base64 string

Use Cr4V1nG_tH3_G0Dd4Mn_Fl4g! as input, then you can get the flag.

‘0xL4ugh{R3v3r$!Ng_N@t1vE_D0t_N3t_Pr0gR@m$_C4N_b3_CRu3L}’

flag is: 0xL4ugh{R3v3r$!Ng_N@t1vE_D0t_N3t_Pr0gR@m$_C4N_b3_CRu3L}