license references added (issue #4)

LICENSE.txt

@@ -0,0 +1,21 @@
+The MIT license, the text of which is below, applies to oqs-provider in general.
+
+Copyright (c) 2016-2021 Open Quantum Safe project
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,4 +1,4 @@
-[CircleCI](https://circleci.com/gh/open-quantum-safe/oqs-provider/tree/main): ![Build status image](https://circleci.com/gh/open-quantum-safe/oqs-provider/tree/main.svg?style=svg)
+[![oqs-provider](https://circleci.com/gh/open-quantum-safe/oqs-provider.svg?style=svg)](https://app.circleci.com/pipelines/github/open-quantum-safe/oqs-provider)
 
 oqsprovider - Open Quantum Safe provider for OpenSSL (3.0)
 ==========================================================
@@ -25,6 +25,7 @@ the OpenSSL EVP interface. For information about the available OQS algorithms,
 [refer to the OQS-OpenSSL documentation](https://github.com/open-quantum-safe/openssl#supported-algorithms).
 
 Open work items are
+- (CI) Testing on platforms other than Ubuntu 18.04 (x86_64)
 - fully TLS-integrated quantum-safe signatures
 - hybrid quantum-safe cryptography
 

oqsprov/oqs_kem.c

@@ -1,22 +1,13 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /*
  * OQS OpenSSL 3 provider
  *
  * Code strongly inspired by OpenSSL rsa kem.
  * 
- * TBC: OQS license
- *
  * ToDo: Adding hybrid alg support; More testing with more key types.
  */
 
-/*
- * Copyright 2019-2020 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/crypto.h>
 #include <openssl/evp.h>
 #include <openssl/core_dispatch.h>

oqsprov/oqs_kmgmt.c

@@ -1,20 +1,11 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /*
  * OQS OpenSSL 3 provider
  *
  * Code strongly inspired by OpenSSL ecx key management.
  *
- * TBC: OQS license
- *
- * ToDo: Optimize macros; generate OQS-constants; testing in regular provider test harness
- */
-
-/*
- * Copyright 2019-2020 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
+ * ToDo: More testing in non-KEM cases
  */
 
 #include <assert.h>

oqsprov/oqs_sig.c

@@ -1,27 +1,17 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /*
  * OQS OpenSSL 3 provider
  *
  * Code strongly inspired by OpenSSL DSA signature provider.
  * 
- * TBC: OQS license
+ * ToDo:  Go beyone EVP use cases/testing
  *
- * ToDo: Everything: This is just a template that needs to be completed with 
- * OQS calls.
  * Significant hurdle: Signature providers of new algorithms are not utilized 
  * properly in OpenSSL3 yet -> Integration won't be seamless and probably 
  * requires quite some (upstream) OpenSSL3 dev investment.
  */
 
-/*
- * Copyright 2019-2020 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 "oqs/sig.h"
 
 #include <string.h>

oqsprov/oqsprov.c

@@ -1,22 +1,13 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /* 
  * OQS OpenSSL 3 provider
  * 
  * Code strongly inspired by OpenSSL legacy provider.
  *
- * TBC: License banner
- *
  * ToDo: encoder/decoders
  */
 
-/*
- * Copyright 2019-2020 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 <string.h>
 #include <stdio.h>
 #include <openssl/core.h>

oqsprov/oqsprov_groups.c

@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /*
  * OQS OpenSSL 3 provider
  *
  * Code strongly inspired by OpenSSL common provider capabilities.
  *
- * TBC: OQS license
- *
  * ToDo: Interop testing.
  */
 

oqsprov/oqsprov_keys.c

@@ -1,10 +1,12 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /* 
  * OQS OpenSSL 3 key handler.
  * 
  * Code strongly inspired by OpenSSL crypto/ec key handler but relocated here 
  * to have code within provider.
  *
- * TBC: OQS license
+ * TBC: Use/test in more than KEM and SIG cases.
  */
 
 #include <openssl/err.h>

oqsprov/oqsx.h

@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0 AND MIT
+
 /*
  * OQS OpenSSL 3 key handler.
  *