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  1. #include<stdio.h>
  2. #include<algorithm>
  3. #include<unistd.h>
  4. #include<string.h>
  5. typedef unsigned int uint;
  6.  
  7. using namespace std;
  8.  
  9. union block{
  10. 	uint v[16];
  11. 	char s[64];
  12. };
  13.  
  14. uint h0, h1, h2, h3, h4;
  15.  
  16. uint LR(uint a, int x){
  17. 	return a << x | a >> 32-x;
  18. }
  19.  
  20. block buf[10000];
  21.  
  22. int main()
  23. {
  24. 	h0 = 0x67452301;
  25. 	h1 = 0xEFCDAB89;
  26. 	h2 = 0x98BADCFE;
  27. 	h3 = 0x10325476;
  28. 	h4 = 0xC3D2E1F0;
  29.  
  30. 	int len = read(0, buf[0].s, 640000), nbits = len * 8;
  31. 	buf[0].s[len++] = 0x80;
  32. 	printf("%d\n", nbits);
  33.  
  34. //	if(len%64 != 56) return !printf("length != 55 (mod 64)\n");
  35.  
  36. 	uint nblock = (len+7)/64 + 1;
  37. 	buf[nblock-1].v[14] = 0;
  38. 	buf[nblock-1].v[15] = nbits;
  39.  
  40. 	for(int t = 0; t < nblock; t++){
  41. 		block cur = buf[t];
  42. 		printf("\n\n");
  43. 		for(int i = 0; i < 64; i++) printf("%c", cur.s[i]);
  44. 		printf("\n\n");
  45. 		for(int i = 0; i < 16; i++){
  46. 			if(t == nblock-1 && i == 15) continue;
  47. 			swap(cur.s[i*4+0], cur.s[i*4+3]);
  48. 			swap(cur.s[i*4+1], cur.s[i*4+2]);
  49. 		}
  50. 		uint w[16];
  51. 		for(int i = 0; i < 16; i++) w[i] = cur.v[i];
  52.  
  53. 		uint a, b, c, d, e, f, k;
  54. 		a = h0; b = h1; c = h2; d = h3; e = h4;
  55. 		for(int i = 0; i < 80; i++){
  56. 			if(i >= 16) w[i%16] = LR(w[(i-3+16)%16]^w[(i-8+16)%16]^w[(i-14+16)%16]^w[(i-16+16)%16], 1);
  57. 			if(i <= 19){
  58. 				f = (b&c)|(~b&d);
  59. 				k = 0x5A827999;
  60. 			}
  61. 			else if(i <= 39){
  62. 				f = (b^c^d);
  63. 				k = 0x6ED9EBA1; 
  64. 			}
  65. 			else if(i <= 59){
  66. 				f = (b&c)|(b&d)|(c&d);
  67. 				k = 0x8F1BBCDC;
  68. 			}
  69. 			else if(i <= 79){
  70. 				f = b^c^d;
  71. 				k = 0xCA62C1D6;
  72. 			}
  73. 			uint tmp = LR(a, 5) + f + e + k + w[i%16];
  74. 			e = d; d = c; c = LR(b, 30); b = a; a = tmp;
  75. 		}
  76. 		h0 = h0 + a;
  77. 		h1 = h1 + b;
  78. 		h2 = h2 + c;
  79. 		h3 = h3 + d;
  80. 		h4 = h4 + e;
  81. 		printf("h0 = 0x%08x; h1 = 0x%08x; h2 = 0x%08x; h3 = 0x%08x; h4 = 0x%08x;\n", h0, h1, h2, h3, h4);
  82. 	}
  83. 	printf("%d\n", nbits);
  84. 	printf("%08x %08x %08x %08x %08x\n", h0, h1, h2, h3, h4);
  85. }
  86.  
Success #stdin #stdout 0s 15856KB
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�

h0 = 0xda39a3ee; h1 = 0x5e6b4b0d; h2 = 0x3255bfef; h3 = 0x95601890; h4 = 0xafd80709;
0
da39a3ee 5e6b4b0d 3255bfef 95601890 afd80709
https://ideone.com/dSugem
language:
C++ (gcc 8.3)
created:
5 years ago
visibility:
public

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