Beginner's Crypto Writeup Solution En: https://hackmd.io/@hakatashi/HJJoxeAyD Ja: https://hackmd.io/@hakatashi/r1Ocu2pJP Flag TSGCTF{0K4y_Y0U_are_r3aDy_t0_Go_aNd_dO_M0r3_CryPt}