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-rw-r--r--src/lib/crypto/crypto_tests/t_hmac.c273
1 files changed, 273 insertions, 0 deletions
diff --git a/src/lib/crypto/crypto_tests/t_hmac.c b/src/lib/crypto/crypto_tests/t_hmac.c
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+/*
+ * lib/crypto/t_hmac.c
+ *
+ * Copyright 2001,2002 by the Massachusetts Institute of Technology.
+ * All Rights Reserved.
+ *
+ * Export of this software from the United States of America may
+ * require a specific license from the United States Government.
+ * It is the responsibility of any person or organization contemplating
+ * export to obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of M.I.T. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission. Furthermore if you modify this software you must label
+ * your software as modified software and not distribute it in such a
+ * fashion that it might be confused with the original M.I.T. software.
+ * M.I.T. makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ *
+ *
+ * Test vectors for HMAC-MD5 and HMAC-SHA1 (placeholder only).
+ * Tests taken from RFC 2202.
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "hash_provider.h"
+
+#define ASIZE(ARRAY) (sizeof(ARRAY)/sizeof(ARRAY[0]))
+
+const char *whoami;
+
+static void keyToData (krb5_keyblock *k, krb5_data *d) {
+ d->length = k->length;
+ d->data = (char *) k->contents;
+}
+
+#if 0
+static void check_error (int r, int line) {
+ if (r != 0) {
+ fprintf (stderr, "%s:%d: %s\n", __FILE__, line,
+ error_message (r));
+ exit (1);
+ }
+}
+#define CHECK check_error(r, __LINE__)
+#endif
+
+static void printd (const char *descr, krb5_data *d) {
+ int i, j;
+ const int r = 16;
+
+ printf("%s (%d bytes):", descr, d->length);
+
+ for (i = 0; i < d->length; i += r) {
+ printf("\n %04x: ", i);
+ for (j = i; j < i + r && j < d->length; j++)
+ printf(" %02x", 0xff & d->data[j]);
+ for (; j < i + r; j++)
+ printf(" ");
+ printf(" ");
+ for (j = i; j < i + r && j < d->length; j++) {
+ int c = 0xff & d->data[j];
+ printf("%c", isprint(c) ? c : '.');
+ }
+ }
+ printf("\n");
+}
+static void printk(const char *descr, krb5_keyblock *k) {
+ krb5_data d;
+ keyToData(k,&d);
+ printd(descr, &d);
+}
+
+
+
+struct hmac_test {
+ int key_len;
+ unsigned char key[180];
+ int data_len;
+ unsigned char data[80];
+ const char *hexdigest;
+};
+
+static krb5_error_code hmac1(const struct krb5_hash_provider *h,
+ krb5_keyblock *key,
+ krb5_data *in, krb5_data *out)
+{
+ char tmp[40];
+ size_t blocksize, hashsize;
+ krb5_error_code err;
+
+ printk(" test key", key);
+ blocksize = h->blocksize;
+ hashsize = h->hashsize;
+ if (hashsize > sizeof(tmp))
+ abort();
+ if (key->length > blocksize) {
+ krb5_data d, d2;
+ d.data = (char *) key->contents;
+ d.length = key->length;
+ d2.data = tmp;
+ d2.length = hashsize;
+ err = h->hash (1, &d, &d2);
+ if (err) {
+ com_err(whoami, err, "hashing key before calling hmac");
+ exit(1);
+ }
+ key->length = d2.length;
+ key->contents = (krb5_octet *) d2.data;
+ printk(" pre-hashed key", key);
+ }
+ printd(" hmac input", in);
+ err = krb5_hmac(h, key, 1, in, out);
+ if (err == 0)
+ printd(" hmac output", out);
+ return err;
+}
+
+static void test_hmac()
+{
+ krb5_keyblock key;
+ krb5_data in, out;
+ char outbuf[20];
+ char stroutbuf[80];
+ krb5_error_code err;
+ int i, j;
+ int lose = 0;
+ struct k5buf buf;
+
+ /* RFC 2202 test vector. */
+ static const struct hmac_test md5tests[] = {
+ {
+ 16, {
+ 0xb, 0xb, 0xb, 0xb, 0xb, 0xb, 0xb, 0xb,
+ 0xb, 0xb, 0xb, 0xb, 0xb, 0xb, 0xb, 0xb,
+ },
+ 8, "Hi There",
+ "0x9294727a3638bb1c13f48ef8158bfc9d"
+ },
+
+ {
+ 4, "Jefe",
+ 28, "what do ya want for nothing?",
+ "0x750c783e6ab0b503eaa86e310a5db738"
+ },
+
+ {
+ 16, {
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
+ },
+ 50, {
+ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+ 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
+ },
+ "0x56be34521d144c88dbb8c733f0e8b3f6"
+ },
+
+ {
+ 25, {
+ 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
+ 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
+ 0x15, 0x16, 0x17, 0x18, 0x19
+ },
+ 50, {
+ 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+ 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+ 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+ 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+ 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
+ },
+ "0x697eaf0aca3a3aea3a75164746ffaa79"
+ },
+
+ {
+ 16, {
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
+ 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c
+ },
+ 20, "Test With Truncation",
+ "0x56461ef2342edc00f9bab995690efd4c"
+ },
+
+ {
+ 80, {
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ },
+ 54, "Test Using Larger Than Block-Size Key - Hash Key First",
+ "0x6b1ab7fe4bd7bf8f0b62e6ce61b9d0cd"
+ },
+
+ {
+ 80, {
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ },
+ 73,
+ "Test Using Larger Than Block-Size Key and Larger Than One Block-Size Data",
+ "0x6f630fad67cda0ee1fb1f562db3aa53e"
+ },
+ };
+
+ for (i = 0; i < sizeof(md5tests)/sizeof(md5tests[0]); i++) {
+ key.contents = md5tests[i].key;
+ key.length = md5tests[i].key_len;
+ in.data = md5tests[i].data;
+ in.length = md5tests[i].data_len;
+
+ out.data = outbuf;
+ out.length = 20;
+ printf("\nTest #%d:\n", i+1);
+ err = hmac1(&krb5int_hash_md5, &key, &in, &out);
+ if (err) {
+ com_err(whoami, err, "computing hmac");
+ exit(1);
+ }
+
+ krb5int_buf_init_fixed(&buf, stroutbuf, sizeof(stroutbuf));
+ krb5int_buf_add(&buf, "0x");
+ for (j = 0; j < out.length; j++)
+ krb5int_buf_add_fmt(&buf, "%02x", 0xff & outbuf[j]);
+ if (krb5int_buf_data(&buf) == NULL)
+ abort();
+ if (strcmp(stroutbuf, md5tests[i].hexdigest)) {
+ printf("*** CHECK FAILED!\n"
+ "\tReturned: %s.\n"
+ "\tExpected: %s.\n", stroutbuf, md5tests[i].hexdigest);
+ lose++;
+ } else
+ printf("Matches expected result.\n");
+ }
+
+ /* Do again with SHA-1 tests.... */
+
+ if (lose) {
+ printf("%d failures; exiting.\n", lose);
+ exit(1);
+ }
+}
+
+
+int main (int argc, char **argv)
+{
+ whoami = argv[0];
+ test_hmac();
+ return 0;
+}
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