masqmail-0.2

annotate src/md5/hmactest.c @ 179:ec3fe72a3e99

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Fixed an important bug with folded headers! g_strconcat() returns a *copy* of the string, but hdr->value still pointed to the old header (which probably was a memory leak, too). If the folded part had been quite small it was likely that the new string was at the same position as the old one, thus making everything go well. But if pretty long headers were folded several times it was likely that the new string was allocated somewhere else in memory, thus breaking things. In result mails to lots of recipients (folded header) were frequently only sent to the ones in the first line. Sorry for the inconvenience.
author meillo@marmaro.de
date Fri, 03 Jun 2011 09:52:17 +0200
parents 52c82d755215
children
rev   line source
meillo@0 1 #include <stdio.h>
meillo@0 2 #include <stdlib.h>
meillo@0 3 #include <sys/time.h>
meillo@0 4 #include <string.h>
meillo@0 5 #include "md5.h"
meillo@0 6 #include "hmac_md5.h"
meillo@0 7
meillo@165 8 /*
meillo@165 9 instead of pad0_copy(d, s, sz) use:
meillo@165 10 memset(d, 0, sz);
meillo@165 11 memcpy(d, s, strlen(s));
meillo@165 12
meillo@10 13 static void
meillo@10 14 pad0_copy(char *d, char *s, int sz)
meillo@0 15 {
meillo@10 16 int i = 0;
meillo@10 17 while (*s && (i < sz)) {
meillo@10 18 *(d++) = *(s++);
meillo@10 19 i++;
meillo@10 20 }
meillo@10 21 while (i <= sz) {
meillo@10 22 *(d++) = 0;
meillo@10 23 i++;
meillo@10 24 }
meillo@0 25 }
meillo@165 26 */
meillo@0 27
meillo@10 28 int
meillo@10 29 main()
meillo@0 30 {
meillo@10 31 int i;
meillo@10 32 char digest[16];
meillo@10 33 char *msgid = "<1896.697170952@postoffice.reston.mci.net>";
meillo@10 34 char secret[65];
meillo@0 35
meillo@165 36
meillo@10 37 hmac_md5("<48157.953508124@mail.class-c.net>", 34, "no!SpamAtAll", 12, digest);
meillo@10 38 for (i = 0; i < 16; i++)
meillo@165 39 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 40 printf("\n\n");
meillo@165 41
meillo@165 42
meillo@165 43 puts("---- The next two should be equal");
meillo@165 44
meillo@0 45
meillo@10 46 hmac_md5(msgid, strlen(msgid), "tanstaaftanstaaf", 16, digest);
meillo@10 47 for (i = 0; i < 16; i++)
meillo@165 48 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 49 printf("\n\n");
meillo@0 50
meillo@165 51
meillo@165 52 /* pad0_copy(secret, "tanstaaftanstaaf", 64); */
meillo@165 53 /* let's do it easier ... */
meillo@165 54 memset(secret, 0, sizeof(secret));
meillo@165 55 memcpy(secret, "tanstaaftanstaaf", 16);
meillo@10 56 hmac_md5(msgid, strlen(msgid), secret, 64, digest);
meillo@10 57 for (i = 0; i < 16; i++)
meillo@165 58 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 59 printf("\n\n");
meillo@165 60
meillo@165 61
meillo@165 62 puts("---- Following are the test vectors from RFC 2104");
meillo@165 63
meillo@165 64
meillo@165 65 char* d01 = "Hi There";
meillo@165 66 char k01[16];
meillo@165 67 for (i=0; i<16; i++) {
meillo@165 68 k01[i] = 0x0b;
meillo@165 69 }
meillo@165 70 printf("9294727a3638bb1c13f48ef8158bfc9d (should be)\n");
meillo@165 71 hmac_md5(d01, strlen(d01), k01, sizeof(k01), digest);
meillo@165 72 for (i = 0; i < 16; i++) {
meillo@165 73 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 74 }
meillo@165 75 printf(" (was computed)\n\n");
meillo@165 76
meillo@165 77
meillo@165 78 char* d02 = "what do ya want for nothing?";
meillo@165 79 char* k02 = "Jefe";
meillo@165 80 printf("750c783e6ab0b503eaa86e310a5db738 (should be)\n");
meillo@165 81 hmac_md5(d02, strlen(d02), k02, strlen(k02), digest);
meillo@165 82 for (i = 0; i < 16; i++) {
meillo@165 83 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 84 }
meillo@165 85 printf(" (was computed)\n\n");
meillo@165 86
meillo@165 87
meillo@165 88 char d03[50];
meillo@165 89 for (i=0; i<sizeof(d03); i++) {
meillo@165 90 d03[i] = 0xdd;
meillo@165 91 }
meillo@165 92 char k03[16];
meillo@165 93 for (i=0; i<sizeof(k03); i++) {
meillo@165 94 k03[i] = 0xaa;
meillo@165 95 }
meillo@165 96 printf("56be34521d144c88dbb8c733f0e8b3f6 (should be)\n");
meillo@165 97 hmac_md5(d03, sizeof(d03), k03, sizeof(k03), digest);
meillo@165 98 for (i = 0; i < 16; i++) {
meillo@165 99 printf("%.2x", 0xFF & (unsigned int) digest[i]);
meillo@165 100 }
meillo@165 101 printf(" (was computed)\n\n");
meillo@0 102
meillo@10 103 exit(0);
meillo@0 104 }