Writeup for Crypto challenges – ASCIS 2024
1. LoveLinhaLot
Flag: ASCIS{d1D_U_U53_lll?}
Flag: ASCIS{d1d_1_g3t_My_r3v3ng3???}
2. XORy
Given the ciphertext which includes the format of the flag by one of the commonly used operation in cryptography, find the flag
Flag: ASCIS{X0R_15_w34k_1f_y0u_kn0w_VKU}
3. Close
Check it out!
Flag: ASCIS{jUsT_l4tt1C3_tR1cK5_4nD_ACD_pR0bL3M!!}
4. Fishy
Check it out!
Flag: ASCIS{s1Mpl3_l1N3Ar_4lg3Br4_tr1cks}
5. Chall 1
Welcome to the MtA Protocol!
We are developing an Threshhold Signature Scheme, so we decided to implement the MtA (Multiplicative to Additive) share conversion protocol to play around how it work.
Try to find the secret that have been hidden!!!!
Flag: ASCIS{6950cd30d86abcb3f880127b786d6e68}
6. Crypto 01
Flag: ASCIS{K!nh_Si3u_th3!!}