1 files changed, 43 insertions, 0 deletions

diff --git a/src/lib/libcrypto/sm2/sm2_local.h b/src/lib/libcrypto/sm2/sm2_local.h
new file mode 100644
index 0000000000..c934263190
--- /dev/null
+++ b/src/lib/libcrypto/sm2/sm2_local.h
@@ -0,0 +1,43 @@
+/*      $OpenBSD: sm2_local.h,v 1.1 2022/11/26 16:08:54 tb Exp $ */
+/*
+ * Copyright (c) 2017, 2019 Ribose Inc
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef HEADER_SM2_LOCL_H
+#define HEADER_SM2_LOCL_H
+
+#include <openssl/ec.h>
+#include <openssl/ecdsa.h>
+
+__BEGIN_HIDDEN_DECLS
+
+int sm2_compute_userid_digest(uint8_t *out, const EVP_MD *digest,
+        const uint8_t *uid, size_t uid_len, const EC_KEY *key);
+
+/*
+ * SM2 signature operation. Computes ZA (user id digest) and then signs
+ * H(ZA || msg) using SM2
+ */
+ECDSA_SIG *sm2_do_sign(const EC_KEY *key, const EVP_MD *digest,
+        const uint8_t *uid, size_t uid_len, const uint8_t *msg, size_t msg_len);
+
+int sm2_do_verify(const EC_KEY *key, const EVP_MD *digest,
+        const ECDSA_SIG *signature, const uint8_t *uid, size_t uid_len,
+        const uint8_t *msg, size_t msg_len);
+
+__END_HIDDEN_DECLS
+
+#endif
+