CHIqueen

https://www.laurentluce.com/posts/python-dictionary-implementation/ Python dictionary implementation | Laurent Luce's Blog August 29, 2011 This post describes how dictionaries are implemented in the Python language. Dictionaries are indexed by keys and they can be seen as associative arrays. Let’s add 3 key/value pairs to a dictionary: >>> d = {'a': 1, 'b': 2} >>> d['c'] = 3 > www.laurentluce.co..

그냥 base64 decode 계속 돌려주면된다. import base64 a=open("ciphertext2","r").read() for i in range(100): a = base64.b64decode(a) print(a[:10]) 돌리다가 에러 터지는데 그때 a를 출력해보면 flag가 나온다, UMDCTF-{b@se64_15_my_f@v0r1t3_b@s3}

png니까 zsteg를 한번 돌려봤다. # zsteg -a CoolCoin.png imagedata .. text: "(((&&&\r\r\r" b2,rgb,lsb,xy .. file: , 32 kHz, Monaural b3,g,msb,xy .. file: MPEG ADTS, layer I, v2, Monaural b3,b,msb,xy .. file: MPEG ADTS, layer I, v2, Monaural b3,bgr,msb,xy .. file: ddis/ddif b4,r,msb,xy .. file: MPEG ADTS, layer I, v2, JntStereo b4,g,msb,xy .. text: ["w" repeated 11 times] b4,b,msb,xy .. text: ["w" repeated ..