From 953d9889a1c6395651ee1264d10dfce9de10f945 Mon Sep 17 00:00:00 2001 From: Atharva Nagarkar Date: Sun, 26 Feb 2017 12:43:50 -0500 Subject: [PATCH] Problem: Decode Me --- decode-me/description.md | 1 + decode-me/encrypted_flag.txt | 231 +++++++++++++++++++++++++++++++++++ decode-me/grader.py | 4 + decode-me/problem.yml | 9 ++ decode-me/sol.py | 6 + 5 files changed, 251 insertions(+) create mode 100644 decode-me/description.md create mode 100644 decode-me/encrypted_flag.txt create mode 100644 decode-me/grader.py create mode 100644 decode-me/problem.yml create mode 100644 decode-me/sol.py diff --git a/decode-me/description.md b/decode-me/description.md new file mode 100644 index 0000000..2fcaaa7 --- /dev/null +++ b/decode-me/description.md @@ -0,0 +1 @@ +Someone I met today told me that they had a perfect encryption method. To prove that there is no such thing, I want you to decrypt this [encrypted flag](${encrypted_flag.txt}) he gave me. diff --git a/decode-me/encrypted_flag.txt b/decode-me/encrypted_flag.txt new file mode 100644 index 0000000..e59a634 --- /dev/null +++ b/decode-me/encrypted_flag.txt @@ -0,0 +1,231 @@ +Vm0wd2QyUXlVWGxWV0d4V1YwZDRWMVl3WkRSV01WbDNXa1JTVjAxV2JETlhhMUpUVmpBeFYySkVU +bGhoTVVwVVZtcEJlRll5U2tWVQpiR2hvVFZWd1ZWWnRjRUpsUmxsNVUydFdWUXBpUjJodlZGWldk +MVpXV25GUmJVWlVUV3hLU1ZadGRHdFhRWEJwVW01Q1VGZFdaREJTCmJWWkhWMjVTYWxKVmNITlZi +WGh6VGxaVmVXUkdaRmRWV0VKd1ZXcEtiMlJzV2tkYVNIQnJDazFzV2toV01qVlRZV3hLV1ZWc1Zs +VlcKYkZwNlZHeGFWbVZYVWtkYVJtUldWMFZLZDFaWGNFdGlNbEp6VjJ0a1dHSlViRk5EYXpGWFYy +eG9WMDFxVmxSV1IzaGhVakZPYzFacwpWbGNLVFRBME1GWkhlR0ZaVms1SVZXdHNWV0pYYUdoVVZF +SkxWbFprV0dWSGRHbE5iRXA2VmpKMGExbFdUa2xSYmtwRVlYcEdlbFl5CmRHOVdNREZ4Vm14U1ds +WXphRXhXTUZwWFl6RmFjd3BXYkdOTFZGUkJNRTFHV2tobFIwWlhZbFphV1ZaWGRHdFpWa3AwVld4 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Great Job!" + return False, "No." diff --git a/decode-me/problem.yml b/decode-me/problem.yml new file mode 100644 index 0000000..d1ac42b --- /dev/null +++ b/decode-me/problem.yml @@ -0,0 +1,9 @@ +title: Decode Me +author: dududum561 +hint: Simple decoding :) +category: Forensics +autogen: false +programming: false +value: 100 +files: + - encrypted_flag.txt diff --git a/decode-me/sol.py b/decode-me/sol.py new file mode 100644 index 0000000..e004f07 --- /dev/null +++ b/decode-me/sol.py @@ -0,0 +1,6 @@ +flag = open('encrypted_flag.txt', 'r').read() + +while "easyctf" not in flag: + flag = flag.decode('base64') + +print flag