#include <string.h>
#include "testutil.h"
+#include "internal/nelem.h"
#ifndef OPENSSL_NO_DES
# include <openssl/des.h>
return 0;
return 1;
}
+
+/*
+ * Test TDES based key wrapping.
+ * The wrapping process uses a randomly generated IV so it is difficult to
+ * undertake KATs. End to end testing is performed instead.
+ */
+static const int test_des_key_wrap_sizes[] = {
+ 8, 16, 24, 32, 64, 80
+};
+
+static int test_des_key_wrap(int idx)
+{
+ int in_bytes = test_des_key_wrap_sizes[idx];
+ unsigned char in[100], c_txt[200], p_txt[200], key[24];
+ int clen, clen_upd, clen_fin, plen, plen_upd, plen_fin, expect, bs, i;
+ EVP_CIPHER *cipher = NULL;
+ EVP_CIPHER_CTX *ctx = NULL;
+ int res = 0;
+
+ /* Some sanity checks and cipher loading */
+ if (!TEST_size_t_le(in_bytes, sizeof(in))
+ || !TEST_ptr(cipher = EVP_CIPHER_fetch(NULL, "DES3-WRAP", NULL))
+ || !TEST_int_eq(bs = EVP_CIPHER_get_block_size(cipher), 8)
+ || !TEST_size_t_eq(bs * 3u, sizeof(key))
+ || !TEST_true(in_bytes % bs == 0)
+ || !TEST_ptr(ctx = EVP_CIPHER_CTX_new()))
+ goto err;
+
+ /* Create random data to end to end test */
+ for (i = 0; i < in_bytes; i++)
+ in[i] = test_random();
+
+ /* Build the key */
+ memcpy(key, cbc_key, sizeof(cbc_key));
+ memcpy(key + sizeof(cbc_key), cbc2_key, sizeof(cbc2_key));
+ memcpy(key + sizeof(cbc_key) + sizeof(cbc3_key), cbc_key, sizeof(cbc3_key));
+
+ /* Wrap / encrypt the key */
+ clen_upd = sizeof(c_txt);
+ if (!TEST_true(EVP_EncryptInit(ctx, cipher, key, NULL))
+ || !TEST_true(EVP_EncryptUpdate(ctx, c_txt, &clen_upd,
+ in, in_bytes)))
+ goto err;
+
+ expect = (in_bytes + (bs - 1)) / bs * bs + 2 * bs;
+ if (!TEST_int_eq(clen_upd, expect))
+ goto err;
+
+ clen_fin = sizeof(c_txt) - clen_upd;
+ if (!TEST_true(EVP_EncryptFinal(ctx, c_txt + clen_upd, &clen_fin))
+ || !TEST_int_eq(clen_fin, 0))
+ goto err;
+ clen = clen_upd + clen_fin;
+
+ /* Decrypt the wrapped key */
+ plen_upd = sizeof(p_txt);
+ if (!TEST_true(EVP_DecryptInit(ctx, cipher, key, NULL))
+ || !TEST_true(EVP_DecryptUpdate(ctx, p_txt, &plen_upd,
+ c_txt, clen)))
+ goto err;
+ plen_fin = sizeof(p_txt) - plen_upd;
+ if (!TEST_true(EVP_DecryptFinal(ctx, p_txt + plen_upd, &plen_fin)))
+ goto err;
+ plen = plen_upd + plen_fin;
+
+ if (!TEST_mem_eq(in, in_bytes, p_txt, plen))
+ goto err;
+ res = 1;
+ err:
+ EVP_CIPHER_free(cipher);
+ EVP_CIPHER_CTX_free(ctx);
+ return res;
+}
#endif
int setup_tests(void)
ADD_TEST(test_des_crypt);
ADD_ALL_TESTS(test_input_align, 4);
ADD_ALL_TESTS(test_output_align, 4);
+ ADD_ALL_TESTS(test_des_key_wrap, OSSL_NELEM(test_des_key_wrap_sizes));
#endif
return 1;
}