[C++] 纯文本查看 复制代码
#include <openssl/sha.h>
unsigned char *SHA1(const unsigned char *d, unsigned long n,
unsigned char *md);
[C++] 纯文本查看 复制代码
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/sha.h>
#define SHA1LEN SHA_DIGEST_LENGTH
static const char hex_chars[] = "0123456789abcdef";
void convert_hex(unsigned char *md, unsigned char *mdstr)
{
int i;
int j = 0;
unsigned int c;
for (i = 0; i < 20; i++) {
c = (md >> 4) & 0x0f;
mdstr[j++] = hex_chars[c];
mdstr[j++] = hex_chars[md & 0x0f];
}
mdstr[40] = '\0';
}
int main(int argc, char **argv)
{
if (argc != 2) {
fprintf (stderr, "usage: %s your-string\n", argv[0]);
exit (EXIT_FAILURE);
}
char md[SHA_DIGEST_LENGTH];
char mdstr[40];
bzero(md, SHA_DIGEST_LENGTH);
bzero(mdstr, 40);
SHA1(argv[1], strlen(argv[1]), md);
convert_hex(md, mdstr);
printf ("Result of SHA1 : %s\n", mdstr);
return 0;
}