1 files changed, 43 insertions, 1 deletions

diff --git a/src/lib/libcrypto/dh/dh_local.h b/src/lib/libcrypto/dh/dh_local.h
index 21bc266a9c..928f2c0c8b 100644
--- a/src/lib/libcrypto/dh/dh_local.h
+++ b/src/lib/libcrypto/dh/dh_local.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: dh_local.h,v 1.2 2022/01/10 12:00:52 tb Exp $ */
+/* $OpenBSD: dh_local.h,v 1.3 2022/01/14 08:25:44 tb Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -61,6 +61,48 @@
 
 __BEGIN_HIDDEN_DECLS
 
+struct dh_method {
+        const char *name;
+        /* Methods here */
+        int (*generate_key)(DH *dh);
+        int (*compute_key)(unsigned char *key,const BIGNUM *pub_key,DH *dh);
+        int (*bn_mod_exp)(const DH *dh, BIGNUM *r, const BIGNUM *a,
+            const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+        int (*init)(DH *dh);
+        int (*finish)(DH *dh);
+        int flags;
+        char *app_data;
+        /* If this is non-NULL, it will be used to generate parameters */
+        int (*generate_params)(DH *dh, int prime_len, int generator,
+            BN_GENCB *cb);
+};
+
+struct dh_st {
+        /* This first argument is used to pick up errors when
+         * a DH is passed instead of a EVP_PKEY */
+        int pad;
+        int version;
+        BIGNUM *p;
+        BIGNUM *g;
+        long length; /* optional */
+        BIGNUM *pub_key;        /* g^x */
+        BIGNUM *priv_key;       /* x */
+
+        int flags;
+        BN_MONT_CTX *method_mont_p;
+        /* Place holders if we want to do X9.42 DH */
+        BIGNUM *q;
+        BIGNUM *j;
+        unsigned char *seed;
+        int seedlen;
+        BIGNUM *counter;
+
+        int references;
+        CRYPTO_EX_DATA ex_data;
+        const DH_METHOD *meth;
+        ENGINE *engine;
+};
+
 /*
  * Public API in OpenSSL that we only want to use internally.
  */