Latest update.

2019-10-17 23:54:38 +09:00
parent 41a23ae6f6
commit ee84d0dd84
1357 changed files with 41111 additions and 9603 deletions
@@ -0,0 +1,181 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/core_numbers.h>
+#include <openssl/core_names.h>
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+#include <openssl/params.h>
+#include "prov/implementations.h"
+
+static OSSL_OP_keymgmt_importdomparams_fn dh_importdomparams;
+static OSSL_OP_keymgmt_exportdomparams_fn dh_exportdomparams;
+static OSSL_OP_keymgmt_importkey_fn dh_importkey;
+static OSSL_OP_keymgmt_exportkey_fn dh_exportkey;
+
+static int params_to_domparams(DH *dh, const OSSL_PARAM params[])
+{
+    const OSSL_PARAM *param_p, *param_g;
+    BIGNUM *p = NULL, *g = NULL;
+
+    if (dh == NULL)
+        return 0;
+
+    param_p = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_P);
+    param_g = OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_FFC_G);
+
+    if ((param_p != NULL && !OSSL_PARAM_get_BN(param_p, &p))
+        || (param_g != NULL && !OSSL_PARAM_get_BN(param_g, &g)))
+        goto err;
+
+    if (!DH_set0_pqg(dh, p, NULL, g))
+        goto err;
+
+    return 1;
+
+ err:
+    BN_free(p);
+    BN_free(g);
+    return 0;
+}
+
+static int domparams_to_params(DH *dh, OSSL_PARAM params[])
+{
+    OSSL_PARAM *p;
+    const BIGNUM *dh_p = NULL, *dh_g = NULL;
+
+    if (dh == NULL)
+        return 0;
+
+    DH_get0_pqg(dh, &dh_p, NULL, &dh_g);
+    if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_FFC_P)) != NULL
+        && !OSSL_PARAM_set_BN(p, dh_p))
+        return 0;
+    if ((p = OSSL_PARAM_locate(params, OSSL_PKEY_PARAM_FFC_G)) != NULL
+        && !OSSL_PARAM_set_BN(p, dh_g))
+        return 0;
+
+    return 1;
+}
+
+static int params_to_key(DH *dh, const OSSL_PARAM params[])
+{
+    const OSSL_PARAM *param_priv_key, *param_pub_key;
+    BIGNUM *priv_key = NULL, *pub_key = NULL;
+
+    if (dh == NULL)
+        return 0;
+
+    if (!params_to_domparams(dh, params))
+        return 0;
+
+    param_priv_key =
+        OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_DH_PRIV_KEY);
+    param_pub_key =
+        OSSL_PARAM_locate_const(params, OSSL_PKEY_PARAM_DH_PUB_KEY);
+
+    /*
+     * DH documentation says that a public key must be present if a
+     * private key is present.
+     * We want to have at least a public key either way, so we end up
+     * requiring it unconditionally.
+     */
+    if (param_pub_key == NULL)
+        return 0;
+
+    if ((param_priv_key != NULL
+         && !OSSL_PARAM_get_BN(param_priv_key, &priv_key))
+        || !OSSL_PARAM_get_BN(param_pub_key, &pub_key))
+        goto err;
+
+    if (!DH_set0_key(dh, pub_key, priv_key))
+        goto err;
+
+    return 1;
+
+ err:
+    BN_free(priv_key);
+    BN_free(pub_key);
+    return 0;
+}
+
+static int key_to_params(DH *dh, OSSL_PARAM params[])
+{
+    OSSL_PARAM *p;
+    const BIGNUM *priv_key = NULL, *pub_key = NULL;
+
+    if (dh == NULL)
+        return 0;
+    if (!domparams_to_params(dh, params))
+        return 0;
+
+    DH_get0_key(dh, &pub_key, &priv_key);
+    if ((p = OSSL_PARAM_locate(params,
+                                     OSSL_PKEY_PARAM_DH_PRIV_KEY)) != NULL
+        && !OSSL_PARAM_set_BN(p, priv_key))
+        return 0;
+    if ((p = OSSL_PARAM_locate(params,
+                                     OSSL_PKEY_PARAM_DH_PUB_KEY)) != NULL
+        && !OSSL_PARAM_set_BN(p, pub_key))
+        return 0;
+
+    return 1;
+}
+
+static void *dh_importdomparams(void *provctx, const OSSL_PARAM params[])
+{
+    DH *dh;
+
+    if ((dh = DH_new()) == NULL
+        || !params_to_domparams(dh, params)) {
+        DH_free(dh);
+        dh = NULL;
+    }
+    return dh;
+}
+
+static int dh_exportdomparams(void *domparams, OSSL_PARAM params[])
+{
+    DH *dh = domparams;
+
+    return dh != NULL && !domparams_to_params(dh, params);
+}
+
+static void *dh_importkey(void *provctx, const OSSL_PARAM params[])
+{
+    DH *dh;
+
+    if ((dh = DH_new()) == NULL
+        || !params_to_key(dh, params)) {
+        DH_free(dh);
+        dh = NULL;
+    }
+    return dh;
+}
+
+static int dh_exportkey(void *key, OSSL_PARAM params[])
+{
+    DH *dh = key;
+
+    return dh != NULL && !key_to_params(dh, params);
+}
+
+const OSSL_DISPATCH dh_keymgmt_functions[] = {
+    /*
+     * TODO(3.0) When implementing OSSL_FUNC_KEYMGMT_GENKEY, remember to also
+     * implement OSSL_FUNC_KEYMGMT_EXPORTKEY.
+     */
+    { OSSL_FUNC_KEYMGMT_IMPORTDOMPARAMS, (void (*)(void))dh_importdomparams },
+    { OSSL_FUNC_KEYMGMT_EXPORTDOMPARAMS, (void (*)(void))dh_exportdomparams },
+    { OSSL_FUNC_KEYMGMT_FREEDOMPARAMS, (void (*)(void))DH_free },
+    { OSSL_FUNC_KEYMGMT_IMPORTKEY, (void (*)(void))dh_importkey },
+    { OSSL_FUNC_KEYMGMT_EXPORTKEY, (void (*)(void))dh_exportkey },
+    { OSSL_FUNC_KEYMGMT_FREEKEY, (void (*)(void))DH_free },
+    { 0, NULL }
+};