-# $OpenBSD: Makefile,v 1.153 2023/07/29 06:46:20 tb Exp $
+# $OpenBSD: Makefile,v 1.154 2023/08/09 09:23:03 tb Exp $
LIB= crypto
LIBREBUILD=y
# bn/
SRCS+= bn_add.c
-SRCS+= bn_blind.c
SRCS+= bn_bpsw.c
SRCS+= bn_const.c
SRCS+= bn_convert.c
# rsa/
SRCS+= rsa_ameth.c
SRCS+= rsa_asn1.c
+SRCS+= rsa_blinding.c
SRCS+= rsa_chk.c
SRCS+= rsa_crpt.c
SRCS+= rsa_eay.c
+++ /dev/null
-/* $OpenBSD: bn_blind.c,v 1.43 2023/08/09 09:20:00 tb Exp $ */
-/* ====================================================================
- * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
-
-#include <stdio.h>
-
-#include <openssl/opensslconf.h>
-
-#include <openssl/err.h>
-
-#include "bn_local.h"
-
-#define BN_BLINDING_COUNTER 32
-
-struct bn_blinding_st {
- BIGNUM *A;
- BIGNUM *Ai;
- BIGNUM *e;
- BIGNUM *mod;
- CRYPTO_THREADID tid;
- int counter;
- BN_MONT_CTX *m_ctx;
- int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
-};
-
-BN_BLINDING *
-BN_BLINDING_new(const BIGNUM *e, const BIGNUM *mod, BN_CTX *ctx,
- int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), BN_MONT_CTX *m_ctx)
-{
- BN_BLINDING *ret = NULL;
-
- if ((ret = calloc(1, sizeof(BN_BLINDING))) == NULL) {
- BNerror(ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if ((ret->A = BN_new()) == NULL)
- goto err;
- if ((ret->Ai = BN_new()) == NULL)
- goto err;
- if ((ret->e = BN_dup(e)) == NULL)
- goto err;
- if ((ret->mod = BN_dup(mod)) == NULL)
- goto err;
- if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
- BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
-
- /* Update on first use. */
- ret->counter = BN_BLINDING_COUNTER - 1;
- CRYPTO_THREADID_current(&ret->tid);
-
- if (bn_mod_exp != NULL)
- ret->bn_mod_exp = bn_mod_exp;
- if (m_ctx != NULL)
- ret->m_ctx = m_ctx;
-
- return ret;
-
- err:
- BN_BLINDING_free(ret);
-
- return NULL;
-}
-
-void
-BN_BLINDING_free(BN_BLINDING *r)
-{
- if (r == NULL)
- return;
-
- BN_free(r->A);
- BN_free(r->Ai);
- BN_free(r->e);
- BN_free(r->mod);
- free(r);
-}
-
-static int
-BN_BLINDING_setup(BN_BLINDING *b, BN_CTX *ctx)
-{
- if (!bn_rand_interval(b->A, 1, b->mod))
- return 0;
- if (BN_mod_inverse_ct(b->Ai, b->A, b->mod, ctx) == NULL)
- return 0;
-
- if (b->bn_mod_exp != NULL && b->m_ctx != NULL) {
- if (!b->bn_mod_exp(b->A, b->A, b->e, b->mod, ctx, b->m_ctx))
- return 0;
- } else {
- if (!BN_mod_exp_ct(b->A, b->A, b->e, b->mod, ctx))
- return 0;
- }
-
- return 1;
-}
-
-static int
-BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
-{
- int ret = 0;
-
- if (++b->counter >= BN_BLINDING_COUNTER) {
- if (!BN_BLINDING_setup(b, ctx))
- goto err;
- b->counter = 0;
- } else {
- if (!BN_mod_sqr(b->A, b->A, b->mod, ctx))
- goto err;
- if (!BN_mod_sqr(b->Ai, b->Ai, b->mod, ctx))
- goto err;
- }
-
- ret = 1;
-
- err:
- return ret;
-}
-
-int
-BN_BLINDING_convert(BIGNUM *n, BIGNUM *inv, BN_BLINDING *b, BN_CTX *ctx)
-{
- int ret = 0;
-
- if (!BN_BLINDING_update(b, ctx))
- goto err;
-
- if (inv != NULL) {
- if (!bn_copy(inv, b->Ai))
- goto err;
- }
-
- ret = BN_mod_mul(n, n, b->A, b->mod, ctx);
-
- err:
- return ret;
-}
-
-int
-BN_BLINDING_invert(BIGNUM *n, const BIGNUM *inv, BN_BLINDING *b, BN_CTX *ctx)
-{
- if (inv == NULL)
- inv = b->Ai;
-
- return BN_mod_mul(n, n, inv, b->mod, ctx);
-}
-
-CRYPTO_THREADID *
-BN_BLINDING_thread_id(BN_BLINDING *b)
-{
- return &b->tid;
-}
-/* $OpenBSD: bn_local.h,v 1.37 2023/08/09 09:20:00 tb Exp $ */
+/* $OpenBSD: bn_local.h,v 1.38 2023/08/09 09:23:03 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
int BN_div_recp(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m,
BN_RECP_CTX *recp, BN_CTX *ctx);
-BN_BLINDING *BN_BLINDING_new(const BIGNUM *e, const BIGNUM *mod, BN_CTX *ctx,
- int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), BN_MONT_CTX *m_ctx);
-void BN_BLINDING_free(BN_BLINDING *b);
-int BN_BLINDING_convert(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *);
-int BN_BLINDING_invert(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *);
-CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
-
/* Explicitly const time / non-const time versions for internal use */
int BN_mod_exp_ct(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
const BIGNUM *m, BN_CTX *ctx);
--- /dev/null
+/* $OpenBSD: rsa_blinding.c,v 1.1 2023/08/09 09:23:03 tb Exp $ */
+/* ====================================================================
+ * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+
+#include <openssl/opensslconf.h>
+
+#include <openssl/err.h>
+#include <openssl/rsa.h>
+
+#include "bn_local.h"
+#include "rsa_local.h"
+
+#define BN_BLINDING_COUNTER 32
+
+struct bn_blinding_st {
+ BIGNUM *A;
+ BIGNUM *Ai;
+ BIGNUM *e;
+ BIGNUM *mod;
+ CRYPTO_THREADID tid;
+ int counter;
+ BN_MONT_CTX *m_ctx;
+ int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+};
+
+BN_BLINDING *
+BN_BLINDING_new(const BIGNUM *e, const BIGNUM *mod, BN_CTX *ctx,
+ int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), BN_MONT_CTX *m_ctx)
+{
+ BN_BLINDING *ret = NULL;
+
+ if ((ret = calloc(1, sizeof(BN_BLINDING))) == NULL) {
+ BNerror(ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if ((ret->A = BN_new()) == NULL)
+ goto err;
+ if ((ret->Ai = BN_new()) == NULL)
+ goto err;
+ if ((ret->e = BN_dup(e)) == NULL)
+ goto err;
+ if ((ret->mod = BN_dup(mod)) == NULL)
+ goto err;
+ if (BN_get_flags(mod, BN_FLG_CONSTTIME) != 0)
+ BN_set_flags(ret->mod, BN_FLG_CONSTTIME);
+
+ /* Update on first use. */
+ ret->counter = BN_BLINDING_COUNTER - 1;
+ CRYPTO_THREADID_current(&ret->tid);
+
+ if (bn_mod_exp != NULL)
+ ret->bn_mod_exp = bn_mod_exp;
+ if (m_ctx != NULL)
+ ret->m_ctx = m_ctx;
+
+ return ret;
+
+ err:
+ BN_BLINDING_free(ret);
+
+ return NULL;
+}
+
+void
+BN_BLINDING_free(BN_BLINDING *r)
+{
+ if (r == NULL)
+ return;
+
+ BN_free(r->A);
+ BN_free(r->Ai);
+ BN_free(r->e);
+ BN_free(r->mod);
+ free(r);
+}
+
+static int
+BN_BLINDING_setup(BN_BLINDING *b, BN_CTX *ctx)
+{
+ if (!bn_rand_interval(b->A, 1, b->mod))
+ return 0;
+ if (BN_mod_inverse_ct(b->Ai, b->A, b->mod, ctx) == NULL)
+ return 0;
+
+ if (b->bn_mod_exp != NULL && b->m_ctx != NULL) {
+ if (!b->bn_mod_exp(b->A, b->A, b->e, b->mod, ctx, b->m_ctx))
+ return 0;
+ } else {
+ if (!BN_mod_exp_ct(b->A, b->A, b->e, b->mod, ctx))
+ return 0;
+ }
+
+ return 1;
+}
+
+static int
+BN_BLINDING_update(BN_BLINDING *b, BN_CTX *ctx)
+{
+ int ret = 0;
+
+ if (++b->counter >= BN_BLINDING_COUNTER) {
+ if (!BN_BLINDING_setup(b, ctx))
+ goto err;
+ b->counter = 0;
+ } else {
+ if (!BN_mod_sqr(b->A, b->A, b->mod, ctx))
+ goto err;
+ if (!BN_mod_sqr(b->Ai, b->Ai, b->mod, ctx))
+ goto err;
+ }
+
+ ret = 1;
+
+ err:
+ return ret;
+}
+
+int
+BN_BLINDING_convert(BIGNUM *n, BIGNUM *inv, BN_BLINDING *b, BN_CTX *ctx)
+{
+ int ret = 0;
+
+ if (!BN_BLINDING_update(b, ctx))
+ goto err;
+
+ if (inv != NULL) {
+ if (!bn_copy(inv, b->Ai))
+ goto err;
+ }
+
+ ret = BN_mod_mul(n, n, b->A, b->mod, ctx);
+
+ err:
+ return ret;
+}
+
+int
+BN_BLINDING_invert(BIGNUM *n, const BIGNUM *inv, BN_BLINDING *b, BN_CTX *ctx)
+{
+ if (inv == NULL)
+ inv = b->Ai;
+
+ return BN_mod_mul(n, n, inv, b->mod, ctx);
+}
+
+CRYPTO_THREADID *
+BN_BLINDING_thread_id(BN_BLINDING *b)
+{
+ return &b->tid;
+}
-/* $OpenBSD: rsa_local.h,v 1.4 2023/07/28 10:05:16 tb Exp $ */
+/* $OpenBSD: rsa_local.h,v 1.5 2023/08/09 09:23:03 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
const unsigned char *f, int fl, int rsa_len);
int RSA_X931_hash_id(int nid);
+BN_BLINDING *BN_BLINDING_new(const BIGNUM *e, const BIGNUM *mod, BN_CTX *ctx,
+ int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx), BN_MONT_CTX *m_ctx);
+void BN_BLINDING_free(BN_BLINDING *b);
+int BN_BLINDING_convert(BIGNUM *n, BIGNUM *r, BN_BLINDING *b, BN_CTX *);
+int BN_BLINDING_invert(BIGNUM *n, const BIGNUM *r, BN_BLINDING *b, BN_CTX *);
+CRYPTO_THREADID *BN_BLINDING_thread_id(BN_BLINDING *);
BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
__END_HIDDEN_DECLS