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암호학 (Cryptology)/code

[C++] 블록암호 구현 - 패딩 (Padding)

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 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 // 블록암호 구현 - 패딩(Padding) #include #include using namespace std; typedef unsigned char byte; // 0x80 패딩 void padding(byte in[]..

암호학 (Cryptology)/code

[C++] 유한체 AES 역 행렬, 역 S-box

역 S-box 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 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 12..

암호학 (Cryptology)/code

[C++] 유한체 연산 & 다항식 연산 (S-box 구현 원리)

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암호학 (Cryptology)/code

[Python3] AES-128 암호화 구현

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암호학 (Cryptology)/code

[Python3] 블록 암호 및 스트림 암호 (차분 공격 - DDT 구현)

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 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 # Difference distribution table, ddt 출력 def p(): print("") print("-"*52) def pr(): print("-"*52) print("") ddt = [[0 for col in range(16)] for row in range(16)] s_box = [ 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7 ..