1 files changed, 57 insertions, 0 deletions
diff --git a/crypto/dh/dh_local.h b/crypto/dh/dh_local.h
new file mode 100644
index 000000000000..0a8391a6c004
--- /dev/null
+++ b/crypto/dh/dh_local.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * 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
+ */
+
+#include <openssl/dh.h>
+#include "internal/refcount.h"
+
+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;
+    int32_t length;             /* optional */
+    BIGNUM *pub_key;            /* g^x % p */
+    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;
+    CRYPTO_REF_COUNT references;
+    CRYPTO_EX_DATA ex_data;
+    const DH_METHOD *meth;
+    ENGINE *engine;
+    CRYPTO_RWLOCK *lock;
+};
+
+struct dh_method {
+    char *name;
+    /* Methods here */
+    int (*generate_key) (DH *dh);
+    int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh);
+
+    /* Can be null */
+    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);
+};