Commit e3662075 authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

Add EVP_PKEY_METHOD redirection test 



Reviewed-by: default avatarMatt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4503)
parent 3f8b368a

test/enginetest.c

+170 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
# include <openssl/buffer.h>

# include <openssl/crypto.h>

# include <openssl/engine.h>

# include <openssl/rsa.h>

# include <openssl/err.h>



static void display_engine_list(void)
@@ -175,6 +176,174 @@ static int test_engines(void) 
        ENGINE_free(block[loop]);

    return to_return;

}



/* Test EVP_PKEY method */

static EVP_PKEY_METHOD *test_rsa = NULL;



static int called_encrypt = 0;



/* Test function to check operation has been redirected */

static int test_encrypt(EVP_PKEY_CTX *ctx, unsigned char *sig,

                        size_t *siglen, const unsigned char *tbs, size_t tbslen)

{

    called_encrypt = 1;

    return 1;

}



static int test_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,

                           const int **pnids, int nid)

{

    static const int rnid = EVP_PKEY_RSA;

    if (pmeth == NULL) {

        *pnids = &rnid;

        return 1;

    }



    if (nid == EVP_PKEY_RSA) {

        *pmeth = test_rsa;

        return 1;

    }



    *pmeth = NULL;

    return 0;

}



/* Return a test EVP_PKEY value */



static EVP_PKEY *get_test_pkey(void)

{

    static unsigned char n[] =

        "\x00\xAA\x36\xAB\xCE\x88\xAC\xFD\xFF\x55\x52\x3C\x7F\xC4\x52\x3F"

        "\x90\xEF\xA0\x0D\xF3\x77\x4A\x25\x9F\x2E\x62\xB4\xC5\xD9\x9C\xB5"

        "\xAD\xB3\x00\xA0\x28\x5E\x53\x01\x93\x0E\x0C\x70\xFB\x68\x76\x93"

        "\x9C\xE6\x16\xCE\x62\x4A\x11\xE0\x08\x6D\x34\x1E\xBC\xAC\xA0\xA1"

        "\xF5";

    static unsigned char e[] = "\x11";



    RSA *rsa = RSA_new();

    EVP_PKEY *pk = EVP_PKEY_new();



    if (rsa == NULL || pk == NULL || !EVP_PKEY_assign_RSA(pk, rsa)) {

        RSA_free(rsa);

        EVP_PKEY_free(pk);

        return NULL;

    }



    if (!RSA_set0_key(rsa, BN_bin2bn(n, sizeof(n)-1, NULL),

                      BN_bin2bn(e, sizeof(e)-1, NULL), NULL)) {

        EVP_PKEY_free(pk);

        return NULL;

    }



    return pk;

}



static int test_redirect(void)

{

    const unsigned char pt[] = "Hello World\n";

    unsigned char *tmp = NULL;

    size_t len;

    EVP_PKEY_CTX *ctx = NULL;

    ENGINE *e = NULL;

    EVP_PKEY *pkey = NULL;



    int to_return = 0;



    if (!TEST_ptr(pkey = get_test_pkey()))

        goto err;



    len = EVP_PKEY_size(pkey);

    if (!TEST_ptr(tmp = OPENSSL_malloc(len)))

        goto err;



    if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL)))

        goto err;

    TEST_info("EVP_PKEY_encrypt test: no redirection");

    /* Encrypt some data: should succeed but not be redirected */

    if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)

            || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)

            || !TEST_false(called_encrypt))

        goto err;

    EVP_PKEY_CTX_free(ctx);

    ctx = NULL;



    /* Create a test ENGINE */

    if (!TEST_ptr(e = ENGINE_new())

            || !TEST_true(ENGINE_set_id(e, "Test redirect engine"))

            || !TEST_true(ENGINE_set_name(e, "Test redirect engine")))

        goto err;



    /*

     * Try to create a context for this engine and test key.

     * Try setting test key engine. Both should fail because the

     * engine has no public key methods.

     */

    if (!TEST_ptr_null(EVP_PKEY_CTX_new(pkey, e))

            || !TEST_int_le(EVP_PKEY_set1_engine(pkey, e), 0))

        goto err;



    /* Setup an empty test EVP_PKEY_METHOD and set callback to return it */

    if (!TEST_ptr(test_rsa = EVP_PKEY_meth_new(EVP_PKEY_RSA, 0)))

        goto err;

    ENGINE_set_pkey_meths(e, test_pkey_meths);



    /* Getting a context for test ENGINE should now succeed */

    if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))

        goto err;

    /* Encrypt should fail because operation is not supported */

    if (!TEST_int_le(EVP_PKEY_encrypt_init(ctx), 0))

        goto err;

    EVP_PKEY_CTX_free(ctx);

    ctx = NULL;



    /* Add test encrypt operation to method */

    EVP_PKEY_meth_set_encrypt(test_rsa, 0, test_encrypt);



    TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_CTX_new()");

    if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, e)))

        goto err;

    /* Encrypt some data: should succeed and be redirected */

    if (!TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)

            || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)

            || !TEST_true(called_encrypt))

        goto err;



    EVP_PKEY_CTX_free(ctx);

    ctx = NULL;

    called_encrypt = 0;



    /* Create context with default engine: should not be redirected */

    if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))

            || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)

            || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)

            || !TEST_false(called_encrypt))

        goto err;



    EVP_PKEY_CTX_free(ctx);

    ctx = NULL;



    /* Set engine explicitly for test key */

    if (!TEST_true(EVP_PKEY_set1_engine(pkey, e)))

        goto err;



    TEST_info("EVP_PKEY_encrypt test: redirection via EVP_PKEY_set1_engine()");



    /* Create context with default engine: should be redirected now */

    if (!TEST_ptr(ctx = EVP_PKEY_CTX_new(pkey, NULL))

            || !TEST_int_gt(EVP_PKEY_encrypt_init(ctx), 0)

            || !TEST_int_gt(EVP_PKEY_encrypt(ctx, tmp, &len, pt, sizeof(pt)), 0)

            || !TEST_true(called_encrypt))

        goto err;



    to_return = 1;



 err:

    EVP_PKEY_CTX_free(ctx);

    EVP_PKEY_free(pkey);

    ENGINE_free(e);

    OPENSSL_free(tmp);

    return to_return;

}

#endif



int setup_tests(void)
@@ -183,6 +352,7 @@ int setup_tests(void) 
    TEST_note("No ENGINE support");

#else

    ADD_TEST(test_engines);

    ADD_TEST(test_redirect);

#endif

    return 1;

}