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Lyrio's blog

RSATool2 使用方法

RSATool2 使用方法题目名称:easy RSA 题目描述: 已知一段加密的信息为:0xdc2eeeb2782c,且已知加密所用的公钥:(N = 3228315619

[SWPUCTF 2021 新生赛]简简单单的逻辑

[SWPUCTF 2021 新生赛]简简单单的逻辑 题目: 1 2 3 4 5 6 7 8 flag = 'xxxxxxxxxxxxxxxxxx' list = [47, 138, 127, 57, 117, 188, 51, 143, 17, 84, 42, 135, 76, 105, 28, 169, 25] result = '' for i in range(len(list)): key = (list[i]>>4)+((list[i] & 0xf)<<4) result += str(hex(ord(flag[i])^key))[2:].zfill(2) print(result) # result=bcfba4d0038d48bd4b00f82796d393dfec ​ 分析 >

[鹤城杯 2021]Middle magic

[鹤城杯 2021]Middle magic题目: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 <?php highlight_file(__FILE__); include "./flag.php"; include "./result.php"; if (isset($_GET['aaa']) && strlen($_GET['aaa']) <