Add md/shaXXX_clone() API
Will be used in the SSL/TLS modules
diff --git a/include/mbedtls/sha512.h b/include/mbedtls/sha512.h
index 6b09a48..7e1bc1e 100644
--- a/include/mbedtls/sha512.h
+++ b/include/mbedtls/sha512.h
@@ -68,6 +68,15 @@
void mbedtls_sha512_free( mbedtls_sha512_context *ctx );
/**
+ * \brief Clone (the state of) a SHA-512 context
+ *
+ * \param dst The destination context
+ * \param src The context to be cloned
+ */
+void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
+ const mbedtls_sha512_context *src );
+
+/**
* \brief SHA-512 context setup
*
* \param ctx context to be initialized