This builds for 32-bit android. Untested.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4481 ed5197a5-7fde-0310-b194-c3ffbd925b24

deps/openssl/android/armeabi-v7a/usr/local/include/crypto/sm2.h

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017 Ribose Inc. All Rights Reserved.
+ * Ported from Ribose contributions from Botan.
+ *
+ * Licensed under the OpenSSL license (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
+ */
+
+#ifndef OSSL_CRYPTO_SM2_H
+# define OSSL_CRYPTO_SM2_H
+# include <openssl/opensslconf.h>
+
+# ifndef OPENSSL_NO_SM2
+
+#  include <openssl/ec.h>
+
+/* The default user id as specified in GM/T 0009-2012 */
+#  define SM2_DEFAULT_USERID "1234567812345678"
+
+int sm2_compute_z_digest(uint8_t *out,
+                         const EVP_MD *digest,
+                         const uint8_t *id,
+                         const size_t id_len,
+                         const EC_KEY *key);
+
+/*
+ * SM2 signature operation. Computes Z and then signs H(Z || msg) using SM2
+ */
+ECDSA_SIG *sm2_do_sign(const EC_KEY *key,
+                       const EVP_MD *digest,
+                       const uint8_t *id,
+                       const size_t id_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 *id,
+                  const size_t id_len,
+                  const uint8_t *msg, size_t msg_len);
+
+/*
+ * SM2 signature generation.
+ */
+int sm2_sign(const unsigned char *dgst, int dgstlen,
+             unsigned char *sig, unsigned int *siglen, EC_KEY *eckey);
+
+/*
+ * SM2 signature verification.
+ */
+int sm2_verify(const unsigned char *dgst, int dgstlen,
+               const unsigned char *sig, int siglen, EC_KEY *eckey);
+
+/*
+ * SM2 encryption
+ */
+int sm2_ciphertext_size(const EC_KEY *key, const EVP_MD *digest, size_t msg_len,
+                        size_t *ct_size);
+
+int sm2_plaintext_size(const unsigned char *ct, size_t ct_size, size_t *pt_size);
+
+int sm2_encrypt(const EC_KEY *key,
+                const EVP_MD *digest,
+                const uint8_t *msg,
+                size_t msg_len,
+                uint8_t *ciphertext_buf, size_t *ciphertext_len);
+
+int sm2_decrypt(const EC_KEY *key,
+                const EVP_MD *digest,
+                const uint8_t *ciphertext,
+                size_t ciphertext_len, uint8_t *ptext_buf, size_t *ptext_len);
+
+# endif /* OPENSSL_NO_SM2 */
+#endif