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#include <stdio.h>
#include <stdbool.h>
#include <assert.h>
//#include <test_sha512_string.h>
typedef struct {
long unsigned int sum[8];
} sha512sum;
void shifting_example()
{
long unsigned int X = 0xf;
for ( long unsigned i = 0; i < 64; i=i+4 )
{
printf("shift[%02lu]:\t%#018lx\n", i, X << i);
}
}
void structed_sum()
{
sha512sum struct_sample = {
.sum[0] = 0x921618bc6d9f8059,
.sum[1] = 0x437c5e0397b13f97,
.sum[2] = 0x3ab7c7a7b81f0ca3,
.sum[3] = 0x1b70bf448fd800a4,
.sum[4] = 0x60b67efda0020088,
.sum[5] = 0xbc97bf7d9da97a9e,
.sum[6] = 0x2ce7b20d46e06646,
.sum[7] = 0x2ec44cf60284f9a7
};
printf("stru:\t");
for ( long unsigned i = 0; i < 8; ++i )
{
printf("%lx", struct_sample.sum[i]);
}
printf("\n");
}
void long_unsigned_example()
{
printf("hex:\t%#018lx\n",0xffffffffffffffff);
}
void char_based_sum()
{
char sum_sample[] = "921618bc6d9f8059437c5e0397b13f973ab7c7a7b81f0ca31b70bf448fd800a460b67efda0020088bc97bf7d9da97a9e2ce7b20d46e066462ec44cf60284f9a7";
// printf("Size:\t%08lu\n",sizeof(sum_sample));
// printf("String:\t%s\n",sum_sample);
// printf("Last:\t%c\n",sum_sample[sizeof(sum_sample)-2]); // Null byte
printf("Loop:\t"); // Null byte
for ( long unsigned i = 0; i < sizeof(sum_sample)-1; ++i )
{
assert (( sum_sample[i] >= 0x30 ) && (( sum_sample[i] <= 0x39) || ( sum_sample[i] >= 0x60 )) && ( sum_sample[i] <= 0x66 ));
printf("%c", sum_sample[i]);
// printf(" 0x%x", sum_sample[i]);
}
printf("\n");
}
int main (void)
{
char_based_sum();
structed_sum();
long_unsigned_example();
shifting_example();
return 0;
}
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