Add support for computing SM2 ZA field to FFI

This is a contribution from Ribose Inc.

1 files changed, 6 insertions, 0 deletions

diff --git a/src/lib/ffi/ffi.h b/src/lib/ffi/ffi.h
index 565d5ce7b..005d32eee 100644
--- a/src/lib/ffi/ffi.h
+++ b/src/lib/ffi/ffi.h
@@ -961,6 +961,12 @@ BOTAN_DLL int botan_privkey_load_sm2_enc(botan_privkey_t* key,
                                          const botan_mp_t scalar,
                                          const char* curve_name);
 
+BOTAN_DLL int botan_pubkey_sm2_compute_za(uint8_t out[],
+                                          size_t* out_len,
+                                          const char* ident,
+                                          const char* hash_algo,
+                                          const botan_pubkey_t key);
+
 /*
 * Public Key Encryption
 */