627 lines
15 KiB
Groff
627 lines
15 KiB
Groff
.\" $OpenBSD: RSA_meth_new.3,v 1.5 2019/07/13 17:26:38 schwarze Exp $
|
|
.\" full merge up to: OpenSSL a970b14f Jul 31 18:58:40 2017 -0400
|
|
.\" selective merge up to: OpenSSL 24907560 Sep 17 07:47:42 2018 +1000
|
|
.\"
|
|
.\" This file is a derived work.
|
|
.\" The changes are covered by the following Copyright and license:
|
|
.\"
|
|
.\" Copyright (c) 2018, 2019 Ingo Schwarze <schwarze@openbsd.org>
|
|
.\"
|
|
.\" Permission to use, copy, modify, and distribute this software for any
|
|
.\" purpose with or without fee is hereby granted, provided that the above
|
|
.\" copyright notice and this permission notice appear in all copies.
|
|
.\"
|
|
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
.\"
|
|
.\" The original file was written by Richard Levitte <levitte@openssl.org>.
|
|
.\" Copyright (c) 2016 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.
|
|
.\"
|
|
.Dd $Mdocdate: July 13 2019 $
|
|
.Dt RSA_METH_NEW 3
|
|
.Os
|
|
.Sh NAME
|
|
.Nm RSA_meth_new ,
|
|
.Nm RSA_meth_dup ,
|
|
.Nm RSA_meth_free ,
|
|
.Nm RSA_meth_get0_name ,
|
|
.Nm RSA_meth_set1_name ,
|
|
.Nm RSA_meth_get_flags ,
|
|
.Nm RSA_meth_set_flags ,
|
|
.Nm RSA_meth_get0_app_data ,
|
|
.Nm RSA_meth_set0_app_data ,
|
|
.Nm RSA_meth_get_init ,
|
|
.Nm RSA_meth_set_init ,
|
|
.Nm RSA_meth_get_finish ,
|
|
.Nm RSA_meth_set_finish ,
|
|
.Nm RSA_meth_get_pub_enc ,
|
|
.Nm RSA_meth_set_pub_enc ,
|
|
.Nm RSA_meth_get_pub_dec ,
|
|
.Nm RSA_meth_set_pub_dec ,
|
|
.Nm RSA_meth_get_priv_enc ,
|
|
.Nm RSA_meth_set_priv_enc ,
|
|
.Nm RSA_meth_get_priv_dec ,
|
|
.Nm RSA_meth_set_priv_dec ,
|
|
.Nm RSA_meth_get_sign ,
|
|
.Nm RSA_meth_set_sign ,
|
|
.Nm RSA_meth_get_verify ,
|
|
.Nm RSA_meth_set_verify ,
|
|
.Nm RSA_meth_get_mod_exp ,
|
|
.Nm RSA_meth_set_mod_exp ,
|
|
.Nm RSA_meth_get_bn_mod_exp ,
|
|
.Nm RSA_meth_set_bn_mod_exp ,
|
|
.Nm RSA_meth_get_keygen ,
|
|
.Nm RSA_meth_set_keygen
|
|
.Nd build up RSA methods
|
|
.Sh SYNOPSIS
|
|
.In openssl/rsa.h
|
|
.Ft RSA_METHOD *
|
|
.Fo RSA_meth_new
|
|
.Fa "const char *name"
|
|
.Fa "int flags"
|
|
.Fc
|
|
.Ft RSA_METHOD *
|
|
.Fo RSA_meth_dup
|
|
.Fa "const RSA_METHOD *meth"
|
|
.Fc
|
|
.Ft void
|
|
.Fo RSA_meth_free
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fc
|
|
.Ft const char *
|
|
.Fo RSA_meth_get0_name
|
|
.Fa "const RSA_METHOD *meth"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set1_name
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "const char *name"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_get_flags
|
|
.Fa "const RSA_METHOD *meth"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_flags
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int flags"
|
|
.Fc
|
|
.Ft void *
|
|
.Fo RSA_meth_get0_app_data
|
|
.Fa "const RSA_METHOD *meth"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set0_app_data
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "void *app_data"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_init(const RSA_METHOD *meth))"
|
|
.Fa "RSA *rsa"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "RSA_meth_set_init"
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*init)(RSA *rsa)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_finish(const RSA_METHOD *meth))"
|
|
.Fa "RSA *rsa"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_finish
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*finish)(RSA *rsa)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_pub_enc(const RSA_METHOD *meth))"
|
|
.Fa "int flen"
|
|
.Fa "const unsigned char *from"
|
|
.Fa "unsigned char *to"
|
|
.Fa "RSA *rsa"
|
|
.Fa "int padding"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_pub_enc
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*pub_enc)(int flen, const unsigned char *from,\
|
|
unsigned char *to, RSA *rsa, int padding)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_pub_dec(const RSA_METHOD *meth))"
|
|
.Fa "int flen"
|
|
.Fa "const unsigned char *from"
|
|
.Fa "unsigned char *to"
|
|
.Fa "RSA *rsa"
|
|
.Fa "int padding"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_pub_dec
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*pub_dec)(int flen, const unsigned char *from,\
|
|
unsigned char *to, RSA *rsa, int padding)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_priv_enc(const RSA_METHOD *meth))"
|
|
.Fa "int flen"
|
|
.Fa "const unsigned char *from"
|
|
.Fa "unsigned char *to"
|
|
.Fa "RSA *rsa"
|
|
.Fa "int padding"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_priv_enc
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*priv_enc)(int flen, const unsigned char *from,\
|
|
unsigned char *to, RSA *rsa, int padding)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_priv_dec(const RSA_METHOD *meth))"
|
|
.Fa "int flen"
|
|
.Fa "const unsigned char *from"
|
|
.Fa "unsigned char *to"
|
|
.Fa "RSA *rsa"
|
|
.Fa "int padding"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_priv_dec
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*priv_dec)(int flen, const unsigned char *from,\
|
|
unsigned char *to, RSA *rsa, int padding)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_sign(const RSA_METHOD *meth))"
|
|
.Fa "int type"
|
|
.Fa "const unsigned char *m"
|
|
.Fa "unsigned int m_length"
|
|
.Fa "unsigned char *sigret"
|
|
.Fa "unsigned int *siglen"
|
|
.Fa "const RSA *rsa"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_sign
|
|
.Fa "RSA_METHOD *rsa"
|
|
.Fa "int (*sign)(int type, const unsigned char *m, unsigned int m_length,\
|
|
unsigned char *sigret, unsigned int *siglen, const RSA *rsa)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_verify(const RSA_METHOD *meth))"
|
|
.Fa "int dtype"
|
|
.Fa "const unsigned char *m"
|
|
.Fa "unsigned int m_length"
|
|
.Fa "const unsigned char *sigbuf"
|
|
.Fa "unsigned int siglen"
|
|
.Fa "const RSA *rsa"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_verify
|
|
.Fa "RSA_METHOD *rsa"
|
|
.Fa "int (*verify)(int dtype, const unsigned char *m,\
|
|
unsigned int m_length, const unsigned char *sigbuf,\
|
|
unsigned int siglen, const RSA *rsa)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_mod_exp(const RSA_METHOD *meth))"
|
|
.Fa "BIGNUM *r0"
|
|
.Fa "const BIGNUM *i"
|
|
.Fa "RSA *rsa"
|
|
.Fa "BN_CTX *ctx"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_mod_exp
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*mod_exp)(BIGNUM *r0, const BIGNUM *i, RSA *rsa, BN_CTX *ctx)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))"
|
|
.Fa "BIGNUM *r"
|
|
.Fa "const BIGNUM *a"
|
|
.Fa "const BIGNUM *p"
|
|
.Fa "const BIGNUM *m"
|
|
.Fa "BN_CTX *ctx"
|
|
.Fa "BN_MONT_CTX *m_ctx"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_bn_mod_exp
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,\
|
|
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)"
|
|
.Fc
|
|
.Ft int
|
|
.Fo "(*RSA_meth_get_keygen(const RSA_METHOD *meth))"
|
|
.Fa "RSA *rsa"
|
|
.Fa "int bits"
|
|
.Fa "BIGNUM *e"
|
|
.Fa "BN_GENCB *cb"
|
|
.Fc
|
|
.Ft int
|
|
.Fo RSA_meth_set_keygen
|
|
.Fa "RSA_METHOD *meth"
|
|
.Fa "int (*keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb)"
|
|
.Fc
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Vt RSA_METHOD
|
|
structure holds function pointers for custom RSA implementations.
|
|
.Pp
|
|
.Fn RSA_meth_new
|
|
creates a new
|
|
.Vt RSA_METHOD
|
|
structure.
|
|
A copy of the NUL-terminated
|
|
.Fa name
|
|
is stored in the new
|
|
.Vt RSA_METHOD
|
|
object.
|
|
Any new
|
|
.Vt RSA
|
|
object constructed from this
|
|
.Vt RSA_METHOD
|
|
will have the given
|
|
.Fa flags
|
|
set by default, as if they were set with
|
|
.Xr RSA_set_flags 3 .
|
|
.Pp
|
|
.Fn RSA_meth_dup
|
|
creates a deep copy of
|
|
.Fa meth ,
|
|
except that a pointer stored into it with
|
|
.Fn RSA_meth_set0_app_data
|
|
is copied as a pointer without creating a copy of its content.
|
|
This might be useful for creating a new
|
|
.Vt RSA_METHOD
|
|
based on an existing one, but with some differences.
|
|
.Pp
|
|
.Fn RSA_meth_free
|
|
destroys
|
|
.Fa meth
|
|
and frees any memory associated with it,
|
|
except that memory pointed to by a pointer set with
|
|
.Fn RSA_meth_set0_app_data
|
|
is not freed.
|
|
If
|
|
.Fa meth
|
|
is
|
|
.Dv NULL ,
|
|
no action occurs.
|
|
.Pp
|
|
.Fn RSA_meth_get0_name
|
|
returns an internal pointer to the name of
|
|
.Fa meth .
|
|
.Fn RSA_meth_set1_name
|
|
stores a copy of the NUL-terminated
|
|
.Fa name
|
|
in the
|
|
.Vt RSA_METHOD
|
|
object after freeing the previously stored name.
|
|
Method names are ignored by the default RSA implementation
|
|
but can be used by alternative implementations
|
|
and by the application program.
|
|
.Pp
|
|
.Fn RSA_meth_get_flags
|
|
retrieves the flags from
|
|
.Fa meth .
|
|
Flags are documented in
|
|
.Xr RSA_test_flags 3 .
|
|
.Fn RSA_meth_set_flags
|
|
overwrites all flags in
|
|
.Fa meth .
|
|
Unlike
|
|
.Xr RSA_set_flags 3 ,
|
|
it does not preserve any flags that were set before the call.
|
|
.Pp
|
|
.Fn RSA_meth_get0_app_data
|
|
and
|
|
.Fn RSA_meth_set0_app_data
|
|
get and set a pointer to implementation-specific data.
|
|
The function
|
|
.Fn RSA_meth_free
|
|
does not
|
|
.Xr free 3
|
|
the memory pointed to by
|
|
.Fa app_data .
|
|
The default RSA implementation does not use
|
|
.Fa app_data .
|
|
.Pp
|
|
.Fn RSA_meth_get_init
|
|
and
|
|
.Fn RSA_meth_set_init
|
|
get and set an optional function used when creating a new
|
|
.Vt RSA
|
|
object.
|
|
Unless
|
|
.Fa init
|
|
is
|
|
.Dv NULL ,
|
|
it will be called at the end of
|
|
.Xr RSA_new 3 ,
|
|
.Xr RSA_new_method 3 ,
|
|
and
|
|
.Xr RSA_set_method 3 ,
|
|
passing a pointer to the newly allocated or reset
|
|
.Vt RSA
|
|
object as an argument.
|
|
The default RSA implementation,
|
|
.Xr RSA_PKCS1_SSLeay 3 ,
|
|
contains an
|
|
.Fa init
|
|
function equivalent to calling
|
|
.Xr RSA_set_flags 3
|
|
with an argument of
|
|
.Dv RSA_FLAG_CACHE_PUBLIC | RSA_FLAG_CACHE_PRIVATE .
|
|
.Pp
|
|
.Fn RSA_meth_get_finish
|
|
and
|
|
.Fn RSA_meth_set_finish
|
|
get and set an optional function for destroying an
|
|
.Vt RSA
|
|
object.
|
|
Unless
|
|
.Fa finish
|
|
is
|
|
.Dv NULL ,
|
|
it will be called from
|
|
.Xr RSA_set_method 3
|
|
and from
|
|
.Xr RSA_free 3 .
|
|
It takes the same argument as
|
|
.Xr RSA_free 3
|
|
and is intended to do RSA implementation specific cleanup.
|
|
The memory used by the
|
|
.Vt RSA
|
|
object itself should not be freed by the
|
|
.Fa finish
|
|
function.
|
|
The default RSA implementation contains a
|
|
.Fa finish
|
|
function freeing the memory used by the
|
|
.Dv RSA_FLAG_CACHE_PUBLIC
|
|
and
|
|
.Dv RSA_FLAG_CACHE_PRIVATE
|
|
caches.
|
|
.Pp
|
|
.Fn RSA_meth_get_pub_enc ,
|
|
.Fn RSA_meth_set_pub_enc ,
|
|
.Fn RSA_meth_get_pub_dec ,
|
|
.Fn RSA_meth_set_pub_dec ,
|
|
.Fn RSA_meth_get_priv_enc ,
|
|
.Fn RSA_meth_set_priv_enc ,
|
|
.Fn RSA_meth_get_priv_dec ,
|
|
and
|
|
.Fn RSA_meth_set_priv_dec
|
|
get and set the mandatory functions
|
|
used for public and private key encryption and decryption.
|
|
These functions will be called from
|
|
.Xr RSA_public_encrypt 3 ,
|
|
.Xr RSA_public_decrypt 3 ,
|
|
.Xr RSA_private_encrypt 3 ,
|
|
and
|
|
.Xr RSA_private_decrypt 3 ,
|
|
respectively, and take the same parameters as those.
|
|
.Pp
|
|
.Fn RSA_meth_get_sign ,
|
|
.Fn RSA_meth_set_sign ,
|
|
.Fn RSA_meth_get_verify ,
|
|
and
|
|
.Fn RSA_meth_set_verify
|
|
get and set the optional functions
|
|
used for creating and verifying an RSA signature.
|
|
If the flag
|
|
.Dv RSA_FLAG_SIGN_VER
|
|
is set on the
|
|
.Vt RSA
|
|
object in question and
|
|
.Fa sign
|
|
or
|
|
.Fa verify
|
|
is not
|
|
.Dv NULL ,
|
|
it will be called from
|
|
.Xr RSA_sign 3
|
|
or
|
|
.Xr RSA_verify 3 ,
|
|
respectively, and take the same parameters as those.
|
|
Otherwise,
|
|
.Xr RSA_private_encrypt 3
|
|
or
|
|
.Xr RSA_public_decrypt 3
|
|
will be used instead.
|
|
.Pp
|
|
.Fn RSA_meth_get_mod_exp
|
|
and
|
|
.Fn RSA_meth_set_mod_exp
|
|
get and set the function
|
|
used for Chinese Remainder Theorem (CRT) computations involving the
|
|
.Fa p ,
|
|
.Fa q ,
|
|
.Fa dmp1 ,
|
|
.Fa dmq1 ,
|
|
and
|
|
.Fa iqmp
|
|
fields of an
|
|
.Vt RSA
|
|
object.
|
|
It is used by the default RSA implementation during
|
|
.Xr RSA_private_encrypt 3
|
|
and
|
|
.Xr RSA_private_decrypt 3
|
|
when the required components of the private key are available
|
|
or when the
|
|
.Dv RSA_FLAG_EXT_PKEY
|
|
flag is set.
|
|
.Pp
|
|
.Fn RSA_meth_get_bn_mod_exp
|
|
and
|
|
.Fn RSA_meth_set_bn_mod_exp
|
|
get and set the function used for CRT computations,
|
|
specifically the value r =
|
|
.Fa a
|
|
\(ha
|
|
.Fa p
|
|
mod
|
|
.Fa m .
|
|
It is used by the default RSA implementation during
|
|
.Xr RSA_public_encrypt 3
|
|
and
|
|
.Xr RSA_public_decrypt 3
|
|
and as a fallback during
|
|
.Xr RSA_private_encrypt 3
|
|
and
|
|
.Xr RSA_private_decrypt 3 .
|
|
.Pp
|
|
.Fn RSA_meth_get_keygen
|
|
and
|
|
.Fn RSA_meth_set_keygen
|
|
get and set the optional function used for generating a new RSA key pair.
|
|
Unless
|
|
.Fa keygen
|
|
is
|
|
.Dv NULL ,
|
|
it will be called from
|
|
.Xr RSA_generate_key_ex 3
|
|
and takes the same parameters.
|
|
Otherwise, a builtin default implementation is used.
|
|
.Sh RETURN VALUES
|
|
.Fn RSA_meth_new
|
|
and
|
|
.Fn RSA_meth_dup
|
|
return the newly allocated
|
|
.Vt RSA_METHOD
|
|
object or
|
|
.Dv NULL
|
|
on failure.
|
|
.Pp
|
|
.Fn RSA_meth_get0_name
|
|
returns an internal pointer which must not be freed by the caller.
|
|
.Pp
|
|
.Fn RSA_meth_get_flags
|
|
returns zero or more
|
|
.Dv RSA_FLAG_*
|
|
constants OR'ed together, or 0 if no flags are set in
|
|
.Fa meth .
|
|
.Pp
|
|
.Fn RSA_meth_get0_app_data
|
|
returns the pointer that was earlier passed to
|
|
.Fn RSA_meth_set0_app_data
|
|
or
|
|
.Dv NULL
|
|
otherwise.
|
|
.Pp
|
|
All other
|
|
.Fn RSA_meth_get_*
|
|
functions return the appropriate function pointer that has been set
|
|
with the corresponding
|
|
.Fn RSA_meth_set_*
|
|
function, or
|
|
.Dv NULL
|
|
if no such pointer has been set in
|
|
.Fa meth .
|
|
.Pp
|
|
All
|
|
.Fn RSA_meth_set*
|
|
functions return 1 on success or 0 on failure.
|
|
In the current implementation, only
|
|
.Fn RSA_meth_set1_name
|
|
can actually fail.
|
|
.Sh SEE ALSO
|
|
.Xr RSA_generate_key_ex 3 ,
|
|
.Xr RSA_new 3 ,
|
|
.Xr RSA_private_encrypt 3 ,
|
|
.Xr RSA_public_encrypt 3 ,
|
|
.Xr RSA_set_flags 3 ,
|
|
.Xr RSA_set_method 3 ,
|
|
.Xr RSA_sign 3
|
|
.Sh HISTORY
|
|
These functions first appeared in OpenSSL 1.1.0.
|
|
.Fn RSA_meth_new ,
|
|
.Fn RSA_meth_dup ,
|
|
.Fn RSA_meth_free ,
|
|
.Fn RSA_meth_set_finish ,
|
|
.Fn RSA_meth_set_priv_enc ,
|
|
and
|
|
.Fn RSA_meth_set_priv_dec
|
|
have been available since
|
|
.Ox 6.3 ,
|
|
.Fn RSA_meth_set1_name
|
|
and
|
|
.Fn RSA_meth_get_finish
|
|
since
|
|
.Ox 6.4 ,
|
|
and
|
|
.Fn RSA_meth_get0_name ,
|
|
.Fn RSA_meth_get_flags ,
|
|
.Fn RSA_meth_set_flags ,
|
|
.Fn RSA_meth_get0_app_data ,
|
|
.Fn RSA_meth_set0_app_data ,
|
|
.Fn RSA_meth_get_init ,
|
|
.Fn RSA_meth_set_init ,
|
|
.Fn RSA_meth_set_finish ,
|
|
.Fn RSA_meth_get_pub_enc ,
|
|
.Fn RSA_meth_set_pub_enc ,
|
|
.Fn RSA_meth_get_pub_dec ,
|
|
.Fn RSA_meth_set_pub_dec ,
|
|
.Fn RSA_meth_get_priv_enc ,
|
|
.Fn RSA_meth_get_priv_dec ,
|
|
.Fn RSA_meth_get_sign ,
|
|
.Fn RSA_meth_set_sign ,
|
|
.Fn RSA_meth_get_verify ,
|
|
.Fn RSA_meth_set_verify ,
|
|
.Fn RSA_meth_get_mod_exp ,
|
|
.Fn RSA_meth_set_mod_exp ,
|
|
.Fn RSA_meth_get_bn_mod_exp ,
|
|
.Fn RSA_meth_set_bn_mod_exp ,
|
|
.Fn RSA_meth_get_keygen ,
|
|
and
|
|
.Fn RSA_meth_set_keygen
|
|
since
|
|
.Ox 6.6 .
|