First of all, I say sry to Kenneth personally as he answers the mail
to my personal address and everytime I hit reply I didn't realize that
I was sending mails to him. Sry Kennet...
In what topic concern I was replying that with a little of work I
understand how sha-1 format is with the 4bit hexadecimal number.
This was the mail that I thought I sent it here:
Well, Nothing better than trying myself out and understanding it,
thanks to you guys, obviosly:
I wrote this to know better the sha-1 format:
#include <openssl/sha.h>
int main(int argc, char *argv[])
{
int i = 0;
int j = 0;
unsigned char *output = (unsigned char *) malloc(sizeof(char) *
SHA_DIGEST_LENGTH);
for (i = 0; argv[1][i] != '\0');
SHA1(argv[1], i, output);
for(i=0; i < 20; i++)
{
printf("%d: ",i);
for(j = 7; j >= 0; j--)
printf("%d", (output[i]>>j) & 1);
printf("\n");
}
}
The first issue was finding out why: echo "seba" | sha1sum didn't
match. I realized that i was forgetting the -n =)
Then I could check correctly the outputs:
echo -n "seba" | sha1sum
5548b9e1beea83fb5d0f2bc81cd5933e8289beab -
whit:
./sha1 seba
0: 01010101
1: 01001000
2: 10111001
3: 11100001
4: 10111110
5: 11101010
6: 10000011
7: 11111011
8: 01011101
9: 00001111
10: 00101011
11: 11001000
12: 00011100
13: 11010101
14: 10010011
15: 00111110
16: 10000010
17: 10001001
18: 10111110
19: 10101011
Thanks again guys ;-)
Regards,
--
If you want freedom, compile the source. Get gentoo.
Sebastián Treu
http://labombiya.com.ar
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