/*
- * Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
- * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2018-2019 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2018-2019, Oracle and/or its affiliates. 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
#include <openssl/evp.h>
#include <openssl/x509v3.h>
#include <openssl/kdf.h>
-#include "internal/asn1_int.h"
-#include "internal/evp_int.h"
+#include <openssl/core.h>
+#include <openssl/core_names.h>
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
#include "internal/numbers.h"
-#include "evp_locl.h"
-
-typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
-
-/* This array needs to be in order of NIDs */
-static const EVP_KDF_METHOD *standard_methods[] = {
- &pbkdf2_kdf_meth,
-#ifndef OPENSSL_NO_SCRYPT
- &scrypt_kdf_meth,
-#endif
- &tls1_prf_kdf_meth,
- &hkdf_kdf_meth,
- &sshkdf_kdf_meth,
- &ss_kdf_meth
-};
-
-DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_KDF_METHOD *, const EVP_KDF_METHOD *,
- kmeth);
-
-static int kmeth_cmp(const EVP_KDF_METHOD *const *a,
- const EVP_KDF_METHOD *const *b)
-{
- return ((*a)->type - (*b)->type);
-}
-
-IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_KDF_METHOD *, const EVP_KDF_METHOD *,
- kmeth);
+#include "internal/provider.h"
+#include "evp_local.h"
-static const EVP_KDF_METHOD *kdf_meth_find(int type)
+EVP_KDF_CTX *EVP_KDF_CTX_new(EVP_KDF *kdf)
{
- EVP_KDF_METHOD tmp;
- const EVP_KDF_METHOD *t = &tmp, **ret;
+ EVP_KDF_CTX *ctx = NULL;
- tmp.type = type;
- ret = OBJ_bsearch_kmeth(&t, standard_methods,
- OSSL_NELEM(standard_methods));
- if (ret == NULL || *ret == NULL)
+ if (kdf == NULL)
return NULL;
- return *ret;
+ ctx = OPENSSL_zalloc(sizeof(EVP_KDF_CTX));
+ if (ctx == NULL
+ || (ctx->data = kdf->newctx(ossl_provider_ctx(kdf->prov))) == NULL
+ || !EVP_KDF_up_ref(kdf)) {
+ EVPerr(EVP_F_EVP_KDF_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ if (ctx != NULL)
+ kdf->freectx(ctx->data);
+ OPENSSL_free(ctx);
+ ctx = NULL;
+ } else {
+ ctx->meth = kdf;
+ }
+ return ctx;
}
-EVP_KDF_CTX *EVP_KDF_CTX_new_id(int id)
+void EVP_KDF_CTX_free(EVP_KDF_CTX *ctx)
{
- EVP_KDF_CTX *ret;
- const EVP_KDF_METHOD *kmeth;
+ if (ctx != NULL) {
+ ctx->meth->freectx(ctx->data);
+ ctx->data = NULL;
+ EVP_KDF_free(ctx->meth);
+ OPENSSL_free(ctx);
+ }
+}
+
+EVP_KDF_CTX *EVP_KDF_CTX_dup(const EVP_KDF_CTX *src)
+{
+ EVP_KDF_CTX *dst;
- kmeth = kdf_meth_find(id);
- if (kmeth == NULL) {
- EVPerr(EVP_F_EVP_KDF_CTX_NEW_ID, EVP_R_UNSUPPORTED_ALGORITHM);
+ if (src == NULL || src->data == NULL || src->meth->dupctx == NULL)
return NULL;
- }
- ret = OPENSSL_zalloc(sizeof(*ret));
- if (ret == NULL) {
- EVPerr(EVP_F_EVP_KDF_CTX_NEW_ID, ERR_R_MALLOC_FAILURE);
+ dst = OPENSSL_malloc(sizeof(*dst));
+ if (dst == NULL) {
+ EVPerr(EVP_F_EVP_KDF_CTX_DUP, ERR_R_MALLOC_FAILURE);
return NULL;
}
- if (kmeth->new != NULL && (ret->impl = kmeth->new()) == NULL) {
- EVP_KDF_CTX_free(ret);
+ memcpy(dst, src, sizeof(*dst));
+ if (!EVP_KDF_up_ref(dst->meth)) {
+ EVPerr(EVP_F_EVP_KDF_CTX_DUP, ERR_R_MALLOC_FAILURE);
+ OPENSSL_free(dst);
return NULL;
}
- ret->kmeth = kmeth;
- return ret;
+ dst->data = src->meth->dupctx(src->data);
+ if (dst->data == NULL) {
+ EVP_KDF_CTX_free(dst);
+ return NULL;
+ }
+ return dst;
}
-void EVP_KDF_CTX_free(EVP_KDF_CTX *ctx)
+const char *EVP_KDF_name(const EVP_KDF *kdf)
{
- if (ctx == NULL)
- return;
-
- ctx->kmeth->free(ctx->impl);
- OPENSSL_free(ctx);
+ return evp_first_name(kdf->prov, kdf->name_id);
}
-void EVP_KDF_reset(EVP_KDF_CTX *ctx)
+const OSSL_PROVIDER *EVP_KDF_provider(const EVP_KDF *kdf)
{
- if (ctx == NULL)
- return;
-
- if (ctx->kmeth->reset != NULL)
- ctx->kmeth->reset(ctx->impl);
+ return kdf->prov;
}
-int EVP_KDF_ctrl(EVP_KDF_CTX *ctx, int cmd, ...)
+const EVP_KDF *EVP_KDF_CTX_kdf(EVP_KDF_CTX *ctx)
{
- int ret;
- va_list args;
-
- va_start(args, cmd);
- ret = EVP_KDF_vctrl(ctx, cmd, args);
- va_end(args);
-
- if (ret == -2)
- EVPerr(EVP_F_EVP_KDF_CTRL, EVP_R_COMMAND_NOT_SUPPORTED);
-
- return ret;
+ return ctx->meth;
}
-int EVP_KDF_vctrl(EVP_KDF_CTX *ctx, int cmd, va_list args)
+void EVP_KDF_reset(EVP_KDF_CTX *ctx)
{
if (ctx == NULL)
- return 0;
+ return;
- return ctx->kmeth->ctrl(ctx->impl, cmd, args);
+ if (ctx->meth->reset != NULL)
+ ctx->meth->reset(ctx->data);
}
-int EVP_KDF_ctrl_str(EVP_KDF_CTX *ctx, const char *type, const char *value)
+size_t EVP_KDF_size(EVP_KDF_CTX *ctx)
{
- int ret;
+ OSSL_PARAM params[2] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ size_t s;
if (ctx == NULL)
return 0;
- if (ctx->kmeth->ctrl_str == NULL) {
- EVPerr(EVP_F_EVP_KDF_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
- return -2;
- }
-
- ret = ctx->kmeth->ctrl_str(ctx->impl, type, value);
- if (ret == -2)
- EVPerr(EVP_F_EVP_KDF_CTRL_STR, EVP_R_COMMAND_NOT_SUPPORTED);
-
- return ret;
+ *params = OSSL_PARAM_construct_size_t(OSSL_KDF_PARAM_SIZE, &s);
+ if (ctx->meth->get_ctx_params != NULL
+ && ctx->meth->get_ctx_params(ctx->data, params))
+ return s;
+ if (ctx->meth->get_params != NULL
+ && ctx->meth->get_params(params))
+ return s;
+ return 0;
}
-size_t EVP_KDF_size(EVP_KDF_CTX *ctx)
+int EVP_KDF_derive(EVP_KDF_CTX *ctx, unsigned char *key, size_t keylen)
{
if (ctx == NULL)
return 0;
- if (ctx->kmeth->size == NULL)
- return SIZE_MAX;
-
- return ctx->kmeth->size(ctx->impl);
+ return ctx->meth->derive(ctx->data, key, keylen);
}
-int EVP_KDF_derive(EVP_KDF_CTX *ctx, unsigned char *key, size_t keylen)
+/*
+ * The {get,set}_params functions return 1 if there is no corresponding
+ * function in the implementation. This is the same as if there was one,
+ * but it didn't recognise any of the given params, i.e. nothing in the
+ * bag of parameters was useful.
+ */
+int EVP_KDF_get_params(EVP_KDF *kdf, OSSL_PARAM params[])
{
- if (ctx == NULL)
- return 0;
+ if (kdf->get_params != NULL)
+ return kdf->get_params(params);
+ return 1;
+}
- return ctx->kmeth->derive(ctx->impl, key, keylen);
+int EVP_KDF_CTX_get_params(EVP_KDF_CTX *ctx, OSSL_PARAM params[])
+{
+ if (ctx->meth->get_ctx_params != NULL)
+ return ctx->meth->get_ctx_params(ctx->data, params);
+ return 1;
}
+int EVP_KDF_CTX_set_params(EVP_KDF_CTX *ctx, const OSSL_PARAM params[])
+{
+ if (ctx->meth->set_ctx_params != NULL)
+ return ctx->meth->set_ctx_params(ctx->data, params);
+ return 1;
+}
projects / thirdparty / openssl.git / blobdiff