1 files changed, 69 insertions, 0 deletions
diff --git a/crypto/ec/ecx_key.c b/crypto/ec/ecx_key.c
new file mode 100644
index 0000000000..59643cc6ad
--- /dev/null
+++ b/crypto/ec/ecx_key.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2020 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/err.h>
+#include "crypto/ecx.h"
+
+ECX_KEY *ecx_key_new(size_t keylen, int haspubkey)
+{
+    ECX_KEY *ret = OPENSSL_zalloc(sizeof(*ret));
+
+    if (ret == NULL)
+        return NULL;
+
+    ret->haspubkey = haspubkey;
+    ret->keylen = keylen;
+    ret->references = 1;
+
+    ret->lock = CRYPTO_THREAD_lock_new();
+    if (ret->lock == NULL) {
+        ERR_raise(ERR_LIB_EC, ERR_R_MALLOC_FAILURE);
+        OPENSSL_free(ret);
+        return NULL;
+    }
+
+    return ret;
+}
+
+void ecx_key_free(ECX_KEY *key)
+{
+    int i;
+
+    if (key == NULL)
+        return;
+
+    CRYPTO_DOWN_REF(&key->references, &i, key->lock);
+    REF_PRINT_COUNT("ECX_KEY", r);
+    if (i > 0)
+        return;
+    REF_ASSERT_ISNT(i < 0);
+
+    OPENSSL_secure_clear_free(key->privkey, key->keylen);
+    CRYPTO_THREAD_lock_free(key->lock);
+    OPENSSL_free(key);
+}
+
+int ecx_key_up_ref(ECX_KEY *key)
+{
+    int i;
+
+    if (CRYPTO_UP_REF(&key->references, &i, key->lock) <= 0)
+        return 0;
+
+    REF_PRINT_COUNT("ECX_KEY", key);
+    REF_ASSERT_ISNT(i < 2);
+    return ((i > 1) ? 1 : 0);
+}
+
+unsigned char *ecx_key_allocate_privkey(ECX_KEY *key)
+{
+    key->privkey = OPENSSL_secure_zalloc(key->keylen);
+
+    return key->privkey;
+}