From 96b331528b7ab48983a3d8cb43fcf82cd8f322c3 Mon Sep 17 00:00:00 2001
From: tb <>
Date: Fri, 14 Jan 2022 08:27:23 +0000
Subject: Make DSA opaque

This moves DSA_SIG, DSA and DSA_METHOD to dsa_locl.h.

ok inoguchi jsing
---
 src/lib/libcrypto/dsa/dsa_locl.h | 56 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 55 insertions(+), 1 deletion(-)

(limited to 'src/lib/libcrypto/dsa/dsa_locl.h')

diff --git a/src/lib/libcrypto/dsa/dsa_locl.h b/src/lib/libcrypto/dsa/dsa_locl.h
index cdb38e036b..29a3901dc7 100644
--- a/src/lib/libcrypto/dsa/dsa_locl.h
+++ b/src/lib/libcrypto/dsa/dsa_locl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: dsa_locl.h,v 1.3 2016/12/21 15:49:29 jsing Exp $ */
+/* $OpenBSD: dsa_locl.h,v 1.4 2022/01/14 08:27:23 tb Exp $ */
 /* ====================================================================
  * Copyright (c) 2007 The OpenSSL Project.  All rights reserved.
  *
@@ -57,6 +57,60 @@
 
 __BEGIN_HIDDEN_DECLS
 
+struct DSA_SIG_st {
+	BIGNUM *r;
+	BIGNUM *s;
+} /* DSA_SIG */;
+
+struct dsa_method {
+	const char *name;
+	DSA_SIG *(*dsa_do_sign)(const unsigned char *dgst, int dlen, DSA *dsa);
+	int (*dsa_sign_setup)(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
+	    BIGNUM **rp);
+	int (*dsa_do_verify)(const unsigned char *dgst, int dgst_len,
+	    DSA_SIG *sig, DSA *dsa);
+	int (*dsa_mod_exp)(DSA *dsa, BIGNUM *rr, BIGNUM *a1, BIGNUM *p1,
+	    BIGNUM *a2, BIGNUM *p2, BIGNUM *m, BN_CTX *ctx,
+	    BN_MONT_CTX *in_mont);
+	int (*bn_mod_exp)(DSA *dsa, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
+	    const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); /* Can be null */
+	int (*init)(DSA *dsa);
+	int (*finish)(DSA *dsa);
+	int flags;
+	char *app_data;
+	/* If this is non-NULL, it is used to generate DSA parameters */
+	int (*dsa_paramgen)(DSA *dsa, int bits, const unsigned char *seed,
+	    int seed_len, int *counter_ret, unsigned long *h_ret, BN_GENCB *cb);
+	/* If this is non-NULL, it is used to generate DSA keys */
+	int (*dsa_keygen)(DSA *dsa);
+} /* DSA_METHOD */;
+
+struct dsa_st {
+	/* This first variable is used to pick up errors where
+	 * a DSA is passed instead of of a EVP_PKEY */
+	int pad;
+	long version;
+	int write_params;
+	BIGNUM *p;
+	BIGNUM *q;	/* == 20 */
+	BIGNUM *g;
+
+	BIGNUM *pub_key;  /* y public key */
+	BIGNUM *priv_key; /* x private key */
+
+	BIGNUM *kinv;	/* Signing pre-calc */
+	BIGNUM *r;	/* Signing pre-calc */
+
+	int flags;
+	/* Normally used to cache montgomery values */
+	BN_MONT_CTX *method_mont_p;
+	int references;
+	CRYPTO_EX_DATA ex_data;
+	const DSA_METHOD *meth;
+	/* functional reference if 'meth' is ENGINE-provided */
+	ENGINE *engine;
+} /* DSA */;
+
 int dsa_builtin_paramgen(DSA *ret, size_t bits, size_t qbits,
 	const EVP_MD *evpmd, const unsigned char *seed_in, size_t seed_len,
 	unsigned char *seed_out,
-- 
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