1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/crypto/hash_ossl.hpp b/src/lib/crypto/hash_ossl.hpp
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+++ b/src/lib/crypto/hash_ossl.hpp
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+/*
+ * Copyright (c) 2022 Ribose Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef CRYPTO_HASH_OSSL_HPP_
+#define CRYPTO_HASH_OSSL_HPP_
+
+#include "hash.hpp"
+#include <openssl/evp.h>
+
+namespace rnp {
+class Hash_OpenSSL : public Hash {
+  private:
+    EVP_MD_CTX *fn_;
+
+    Hash_OpenSSL(pgp_hash_alg_t alg);
+    Hash_OpenSSL(const Hash_OpenSSL &src);
+
+  public:
+    virtual ~Hash_OpenSSL();
+
+    static std::unique_ptr<Hash_OpenSSL> create(pgp_hash_alg_t alg);
+    std::unique_ptr<Hash>                clone() const override;
+
+    void   add(const void *buf, size_t len) override;
+    size_t finish(uint8_t *digest = NULL) override;
+
+    static const char *name_backend(pgp_hash_alg_t alg);
+};
+
+} // namespace rnp
+
+#endif
+\ No newline at end of file