[thirdparty/openssl.git] / doc / man3 / RSA_meth_new.pod

=pod

=head1 NAME

RSA_meth_get0_app_data, RSA_meth_set0_app_data,
RSA_meth_new, RSA_meth_free, RSA_meth_dup, RSA_meth_get0_name,
RSA_meth_set1_name, RSA_meth_get_flags, RSA_meth_set_flags,
RSA_meth_get_pub_enc,
RSA_meth_set_pub_enc, RSA_meth_get_pub_dec, RSA_meth_set_pub_dec,
RSA_meth_get_priv_enc, RSA_meth_set_priv_enc, RSA_meth_get_priv_dec,
RSA_meth_set_priv_dec, RSA_meth_get_mod_exp, RSA_meth_set_mod_exp,
RSA_meth_get_bn_mod_exp, RSA_meth_set_bn_mod_exp, RSA_meth_get_init,
RSA_meth_set_init, RSA_meth_get_finish, RSA_meth_set_finish,
RSA_meth_get_sign, RSA_meth_set_sign, RSA_meth_get_verify,
RSA_meth_set_verify, RSA_meth_get_keygen, RSA_meth_set_keygen,
RSA_meth_get_multi_prime_keygen, RSA_meth_set_multi_prime_keygen
- Routines to build up RSA methods

=head1 SYNOPSIS

 #include <openssl/rsa.h>

Deprecated since OpenSSL 3.0, can be hidden entirely by defining
B<OPENSSL_API_COMPAT> with a suitable version value, see
L<openssl_user_macros(7)>:

 RSA_METHOD *RSA_meth_new(const char *name, int flags);
 void RSA_meth_free(RSA_METHOD *meth);

 RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth);

 const char *RSA_meth_get0_name(const RSA_METHOD *meth);
 int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);

 int RSA_meth_get_flags(const RSA_METHOD *meth);
 int RSA_meth_set_flags(RSA_METHOD *meth, int flags);

 void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
 int RSA_meth_set0_app_data(RSA_METHOD *meth, void *app_data);

 int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))(int flen, const unsigned char *from,
                                                     unsigned char *to, RSA *rsa, int padding);
 int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
                          int (*pub_enc)(int flen, const unsigned char *from,
                                         unsigned char *to, RSA *rsa,
                                         int padding));

 int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))
     (int flen, const unsigned char *from,
      unsigned char *to, RSA *rsa, int padding);
 int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
                          int (*pub_dec)(int flen, const unsigned char *from,
                                         unsigned char *to, RSA *rsa,
                                         int padding));

 int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))(int flen, const unsigned char *from,
                                                      unsigned char *to, RSA *rsa,
                                                      int padding);
 int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
                           int (*priv_enc)(int flen, const unsigned char *from,
                                           unsigned char *to, RSA *rsa, int padding));

 int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))(int flen, const unsigned char *from,
                                                      unsigned char *to, RSA *rsa,
                                                      int padding);
 int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
                           int (*priv_dec)(int flen, const unsigned char *from,
                                           unsigned char *to, RSA *rsa, int padding));

 /* Can be null */
 int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))(BIGNUM *r0, const BIGNUM *i,
                                                     RSA *rsa, BN_CTX *ctx);
 int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
                          int (*mod_exp)(BIGNUM *r0, const BIGNUM *i, RSA *rsa,
                                         BN_CTX *ctx));

 /* Can be null */
 int (*RSA_meth_get_bn_mod_exp(const RSA_METHOD *meth))(BIGNUM *r, const BIGNUM *a,
                                                        const BIGNUM *p, const BIGNUM *m,
                                                        BN_CTX *ctx, BN_MONT_CTX *m_ctx);
 int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
                             int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a,
                                               const BIGNUM *p, const BIGNUM *m,
                                               BN_CTX *ctx, BN_MONT_CTX *m_ctx));

 /* called at new */
 int (*RSA_meth_get_init(const RSA_METHOD *meth) (RSA *rsa);
 int RSA_meth_set_init(RSA_METHOD *rsa, int (*init (RSA *rsa));

 /* called at free */
 int (*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa);
 int RSA_meth_set_finish(RSA_METHOD *rsa, int (*finish)(RSA *rsa));

 int (*RSA_meth_get_sign(const RSA_METHOD *meth))(int type, const unsigned char *m,
                                                  unsigned int m_length,
                                                  unsigned char *sigret,
                                                  unsigned int *siglen, const RSA *rsa);
 int RSA_meth_set_sign(RSA_METHOD *rsa,
                       int (*sign)(int type, const unsigned char *m,
                                   unsigned int m_length, unsigned char *sigret,
                                   unsigned int *siglen, const RSA *rsa));

 int (*RSA_meth_get_verify(const RSA_METHOD *meth))(int dtype, const unsigned char *m,
                                                    unsigned int m_length,
                                                    const unsigned char *sigbuf,
                                                    unsigned int siglen, const RSA *rsa);
 int RSA_meth_set_verify(RSA_METHOD *rsa,
                         int (*verify)(int dtype, const unsigned char *m,
                                       unsigned int m_length,
                                       const unsigned char *sigbuf,
                                       unsigned int siglen, const RSA *rsa));

 int (*RSA_meth_get_keygen(const RSA_METHOD *meth))(RSA *rsa, int bits, BIGNUM *e,
                                                    BN_GENCB *cb);
 int RSA_meth_set_keygen(RSA_METHOD *rsa,
                         int (*keygen)(RSA *rsa, int bits, BIGNUM *e,
                                       BN_GENCB *cb));

 int (*RSA_meth_get_multi_prime_keygen(const RSA_METHOD *meth))(RSA *rsa, int bits,
                                                                int primes, BIGNUM *e,
                                                                BN_GENCB *cb);

 int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
                                     int (*keygen) (RSA *rsa, int bits,
                                                    int primes, BIGNUM *e,
                                                    BN_GENCB *cb));

=head1 DESCRIPTION

All of the functions described on this page are deprecated.
Applications should instead use the OSSL_PROVIDER APIs.

The B<RSA_METHOD> type is a structure used for the provision of custom
RSA implementations. It provides a set of functions used by OpenSSL
for the implementation of the various RSA capabilities.

RSA_meth_new() creates a new B<RSA_METHOD> structure. It should be
given a unique B<name> and a set of B<flags>. The B<name> should be a
NULL terminated string, which will be duplicated and stored in the
B<RSA_METHOD> object. It is the callers responsibility to free the
original string. The flags will be used during the construction of a
new B<RSA> object based on this B<RSA_METHOD>. Any new B<RSA> object
will have those flags set by default.

RSA_meth_dup() creates a duplicate copy of the B<RSA_METHOD> object
passed as a parameter. This might be useful for creating a new
B<RSA_METHOD> based on an existing one, but with some differences.

RSA_meth_free() destroys an B<RSA_METHOD> structure and frees up any
memory associated with it.

RSA_meth_get0_name() will return a pointer to the name of this
RSA_METHOD. This is a pointer to the internal name string and so
should not be freed by the caller. RSA_meth_set1_name() sets the name
of the RSA_METHOD to B<name>. The string is duplicated and the copy is
stored in the RSA_METHOD structure, so the caller remains responsible
for freeing the memory associated with the name.

RSA_meth_get_flags() returns the current value of the flags associated
with this RSA_METHOD. RSA_meth_set_flags() provides the ability to set
these flags.

The functions RSA_meth_get0_app_data() and RSA_meth_set0_app_data()
provide the ability to associate implementation specific data with the
RSA_METHOD. It is the application's responsibility to free this data
before the RSA_METHOD is freed via a call to RSA_meth_free().

RSA_meth_get_sign() and RSA_meth_set_sign() get and set the function
used for creating an RSA signature respectively. This function will be
called in response to the application calling RSA_sign(). The
parameters for the function have the same meaning as for RSA_sign().

RSA_meth_get_verify() and RSA_meth_set_verify() get and set the
function used for verifying an RSA signature respectively. This
function will be called in response to the application calling
RSA_verify(). The parameters for the function have the same meaning as
for RSA_verify().

RSA_meth_get_mod_exp() and RSA_meth_set_mod_exp() get and set the
function used for CRT computations.

RSA_meth_get_bn_mod_exp() and RSA_meth_set_bn_mod_exp() get and set
the function used for CRT computations, specifically the following
value:

 r = a ^ p mod m

Both the mod_exp() and bn_mod_exp() functions are called by the
default OpenSSL method during encryption, decryption, signing and
verification.

RSA_meth_get_init() and RSA_meth_set_init() get and set the function
used for creating a new RSA instance respectively. This function will
be called in response to the application calling RSA_new() (if the
current default RSA_METHOD is this one) or RSA_new_method(). The
RSA_new() and RSA_new_method() functions will allocate the memory for
the new RSA object, and a pointer to this newly allocated structure
will be passed as a parameter to the function. This function may be
NULL.

RSA_meth_get_finish() and RSA_meth_set_finish() get and set the
function used for destroying an instance of an RSA object respectively.
This function will be called in response to the application calling
RSA_free(). A pointer to the RSA to be destroyed is passed as a
parameter. The destroy function should be used for RSA implementation
specific clean up. The memory for the RSA itself should not be freed
by this function. This function may be NULL.

RSA_meth_get_keygen() and RSA_meth_set_keygen() get and set the
function used for generating a new RSA key pair respectively. This
function will be called in response to the application calling
RSA_generate_key_ex(). The parameter for the function has the same
meaning as for RSA_generate_key_ex().

RSA_meth_get_multi_prime_keygen() and RSA_meth_set_multi_prime_keygen() get
and set the function used for generating a new multi-prime RSA key pair
respectively. This function will be called in response to the application calling
RSA_generate_multi_prime_key(). The parameter for the function has the same
meaning as for RSA_generate_multi_prime_key().

RSA_meth_get_pub_enc(), RSA_meth_set_pub_enc(),
RSA_meth_get_pub_dec(), RSA_meth_set_pub_dec(),
RSA_meth_get_priv_enc(), RSA_meth_set_priv_enc(),
RSA_meth_get_priv_dec(), RSA_meth_set_priv_dec() get and set the
functions used for public and private key encryption and decryption.
These functions will be called in response to the application calling
RSA_public_encrypt(), RSA_private_decrypt(), RSA_private_encrypt() and
RSA_public_decrypt() and take the same parameters as those.


=head1 RETURN VALUES

RSA_meth_new() and RSA_meth_dup() return the newly allocated
RSA_METHOD object or NULL on failure.

RSA_meth_get0_name() and RSA_meth_get_flags() return the name and
flags associated with the RSA_METHOD respectively.

All other RSA_meth_get_*() functions return the appropriate function
pointer that has been set in the RSA_METHOD, or NULL if no such
pointer has yet been set.

RSA_meth_set1_name and all RSA_meth_set_*() functions return 1 on
success or 0 on failure.

=head1 SEE ALSO

L<RSA_new(3)>, L<RSA_generate_key_ex(3)>, L<RSA_sign(3)>,
L<RSA_set_method(3)>, L<RSA_size(3)>, L<RSA_get0_key(3)>,
L<RSA_generate_multi_prime_key(3)>

=head1 HISTORY

All of these functions were deprecated in OpenSSL 3.0.

RSA_meth_get_multi_prime_keygen() and RSA_meth_set_multi_prime_keygen() were
added in OpenSSL 1.1.1.

Other functions described here were added in OpenSSL 1.1.0.

=head1 COPYRIGHT

Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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
L<https://www.openssl.org/source/license.html>.

=cut
Commit	Line	Data
cd35e6c0 RL	1	=pod
	2
	3	=head1 NAME
	4
c952780c	5	RSA_meth_get0_app_data, RSA_meth_set0_app_data,
cd35e6c0 RL	6	RSA_meth_new, RSA_meth_free, RSA_meth_dup, RSA_meth_get0_name,
cd35e6c0 RL	7	RSA_meth_set1_name, RSA_meth_get_flags, RSA_meth_set_flags,
c952780c	8	RSA_meth_get_pub_enc,
cd35e6c0 RL	9	RSA_meth_set_pub_enc, RSA_meth_get_pub_dec, RSA_meth_set_pub_dec,
	10	RSA_meth_get_priv_enc, RSA_meth_set_priv_enc, RSA_meth_get_priv_dec,
	11	RSA_meth_set_priv_dec, RSA_meth_get_mod_exp, RSA_meth_set_mod_exp,
	12	RSA_meth_get_bn_mod_exp, RSA_meth_set_bn_mod_exp, RSA_meth_get_init,
	13	RSA_meth_set_init, RSA_meth_get_finish, RSA_meth_set_finish,
	14	RSA_meth_get_sign, RSA_meth_set_sign, RSA_meth_get_verify,
665d899f PY	15	RSA_meth_set_verify, RSA_meth_get_keygen, RSA_meth_set_keygen,
665d899f PY	16	RSA_meth_get_multi_prime_keygen, RSA_meth_set_multi_prime_keygen
cd35e6c0 RL	17	- Routines to build up RSA methods
	18
	19	=head1 SYNOPSIS
	20
	21	#include <openssl/rsa.h>
	22
4fd8a3e1 P	23	Deprecated since OpenSSL 3.0, can be hidden entirely by defining
	24	B<OPENSSL_API_COMPAT> with a suitable version value, see
	25	L<openssl_user_macros(7)>:
	26
cd35e6c0 RL	27	RSA_METHOD RSA_meth_new(const char name, int flags);
cd35e6c0 RL	28	void RSA_meth_free(RSA_METHOD *meth);
e9b77246	29
cd35e6c0	30	RSA_METHOD RSA_meth_dup(const RSA_METHOD meth);
e9b77246	31
cd35e6c0 RL	32	const char RSA_meth_get0_name(const RSA_METHOD meth);
cd35e6c0 RL	33	int RSA_meth_set1_name(RSA_METHOD meth, const char name);
e9b77246	34
693be9a2	35	int RSA_meth_get_flags(const RSA_METHOD *meth);
cd35e6c0	36	int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
e9b77246	37
cd35e6c0 RL	38	void RSA_meth_get0_app_data(const RSA_METHOD meth);
cd35e6c0 RL	39	int RSA_meth_set0_app_data(RSA_METHOD meth, void app_data);
e9b77246 BB	40
	41	int (RSA_meth_get_pub_enc(const RSA_METHOD meth))(int flen, const unsigned char *from,
	42	unsigned char to, RSA rsa, int padding);
cd35e6c0	43	int RSA_meth_set_pub_enc(RSA_METHOD *rsa,
e9b77246 BB	44	int (pub_enc)(int flen, const unsigned char from,
	45	unsigned char to, RSA rsa,
	46	int padding));
	47
cd35e6c0 RL	48	int (RSA_meth_get_pub_dec(const RSA_METHOD meth))
	49	(int flen, const unsigned char *from,
	50	unsigned char to, RSA rsa, int padding);
	51	int RSA_meth_set_pub_dec(RSA_METHOD *rsa,
e9b77246 BB	52	int (pub_dec)(int flen, const unsigned char from,
	53	unsigned char to, RSA rsa,
	54	int padding));
	55
	56	int (RSA_meth_get_priv_enc(const RSA_METHOD meth))(int flen, const unsigned char *from,
	57	unsigned char to, RSA rsa,
	58	int padding);
cd35e6c0	59	int RSA_meth_set_priv_enc(RSA_METHOD *rsa,
e9b77246 BB	60	int (priv_enc)(int flen, const unsigned char from,
	61	unsigned char to, RSA rsa, int padding));
	62
	63	int (RSA_meth_get_priv_dec(const RSA_METHOD meth))(int flen, const unsigned char *from,
	64	unsigned char to, RSA rsa,
	65	int padding);
cd35e6c0	66	int RSA_meth_set_priv_dec(RSA_METHOD *rsa,
e9b77246 BB	67	int (priv_dec)(int flen, const unsigned char from,
	68	unsigned char to, RSA rsa, int padding));
	69
	70	/* Can be null */
972f6788	71	int (RSA_meth_get_mod_exp(const RSA_METHOD meth))(BIGNUM r0, const BIGNUM i,
e9b77246	72	RSA rsa, BN_CTX ctx);
cd35e6c0	73	int RSA_meth_set_mod_exp(RSA_METHOD *rsa,
972f6788	74	int (mod_exp)(BIGNUM r0, const BIGNUM i, RSA rsa,
e9b77246 BB	75	BN_CTX *ctx));
	76
	77	/* Can be null */
	78	int (RSA_meth_get_bn_mod_exp(const RSA_METHOD meth))(BIGNUM r, const BIGNUM a,
	79	const BIGNUM p, const BIGNUM m,
	80	BN_CTX ctx, BN_MONT_CTX m_ctx);
cd35e6c0	81	int RSA_meth_set_bn_mod_exp(RSA_METHOD *rsa,
e9b77246 BB	82	int (bn_mod_exp)(BIGNUM r, const BIGNUM *a,
	83	const BIGNUM p, const BIGNUM m,
	84	BN_CTX ctx, BN_MONT_CTX m_ctx));
	85
	86	/* called at new */
	87	int (RSA_meth_get_init(const RSA_METHOD meth) (RSA *rsa);
	88	int RSA_meth_set_init(RSA_METHOD rsa, int (init (RSA *rsa));
	89
	90	/* called at free */
	91	int (RSA_meth_get_finish(const RSA_METHOD meth))(RSA *rsa);
	92	int RSA_meth_set_finish(RSA_METHOD rsa, int (finish)(RSA *rsa));
	93
	94	int (RSA_meth_get_sign(const RSA_METHOD meth))(int type, const unsigned char *m,
	95	unsigned int m_length,
	96	unsigned char *sigret,
	97	unsigned int siglen, const RSA rsa);
cd35e6c0	98	int RSA_meth_set_sign(RSA_METHOD *rsa,
e9b77246 BB	99	int (sign)(int type, const unsigned char m,
	100	unsigned int m_length, unsigned char *sigret,
	101	unsigned int siglen, const RSA rsa));
	102
	103	int (RSA_meth_get_verify(const RSA_METHOD meth))(int dtype, const unsigned char *m,
	104	unsigned int m_length,
	105	const unsigned char *sigbuf,
	106	unsigned int siglen, const RSA *rsa);
cd35e6c0	107	int RSA_meth_set_verify(RSA_METHOD *rsa,
e9b77246 BB	108	int (verify)(int dtype, const unsigned char m,
	109	unsigned int m_length,
	110	const unsigned char *sigbuf,
	111	unsigned int siglen, const RSA *rsa));
	112
	113	int (RSA_meth_get_keygen(const RSA_METHOD meth))(RSA rsa, int bits, BIGNUM e,
	114	BN_GENCB *cb);
cd35e6c0	115	int RSA_meth_set_keygen(RSA_METHOD *rsa,
e9b77246 BB	116	int (keygen)(RSA rsa, int bits, BIGNUM *e,
e9b77246 BB	117	BN_GENCB *cb));
cd35e6c0	118
665d899f PY	119	int (RSA_meth_get_multi_prime_keygen(const RSA_METHOD meth))(RSA *rsa, int bits,
	120	int primes, BIGNUM *e,
	121	BN_GENCB *cb);
	122
	123	int RSA_meth_set_multi_prime_keygen(RSA_METHOD *meth,
	124	int (keygen) (RSA rsa, int bits,
	125	int primes, BIGNUM *e,
	126	BN_GENCB *cb));
	127
cd35e6c0 RL	128	=head1 DESCRIPTION
cd35e6c0 RL	129
4fd8a3e1 P	130	All of the functions described on this page are deprecated.
	131	Applications should instead use the OSSL_PROVIDER APIs.
	132
cd35e6c0	133	The B<RSA_METHOD> type is a structure used for the provision of custom
a970b14f	134	RSA implementations. It provides a set of functions used by OpenSSL
6e4618a0	135	for the implementation of the various RSA capabilities.
cd35e6c0 RL	136
	137	RSA_meth_new() creates a new B<RSA_METHOD> structure. It should be
	138	given a unique B<name> and a set of B<flags>. The B<name> should be a
	139	NULL terminated string, which will be duplicated and stored in the
	140	B<RSA_METHOD> object. It is the callers responsibility to free the
	141	original string. The flags will be used during the construction of a
	142	new B<RSA> object based on this B<RSA_METHOD>. Any new B<RSA> object
	143	will have those flags set by default.
	144
	145	RSA_meth_dup() creates a duplicate copy of the B<RSA_METHOD> object
	146	passed as a parameter. This might be useful for creating a new
	147	B<RSA_METHOD> based on an existing one, but with some differences.
	148
	149	RSA_meth_free() destroys an B<RSA_METHOD> structure and frees up any
	150	memory associated with it.
	151
	152	RSA_meth_get0_name() will return a pointer to the name of this
	153	RSA_METHOD. This is a pointer to the internal name string and so
	154	should not be freed by the caller. RSA_meth_set1_name() sets the name
	155	of the RSA_METHOD to B<name>. The string is duplicated and the copy is
	156	stored in the RSA_METHOD structure, so the caller remains responsible
	157	for freeing the memory associated with the name.
	158
	159	RSA_meth_get_flags() returns the current value of the flags associated
	160	with this RSA_METHOD. RSA_meth_set_flags() provides the ability to set
	161	these flags.
	162
	163	The functions RSA_meth_get0_app_data() and RSA_meth_set0_app_data()
	164	provide the ability to associate implementation specific data with the
	165	RSA_METHOD. It is the application's responsibility to free this data
	166	before the RSA_METHOD is freed via a call to RSA_meth_free().
	167
	168	RSA_meth_get_sign() and RSA_meth_set_sign() get and set the function
	169	used for creating an RSA signature respectively. This function will be
	170	called in response to the application calling RSA_sign(). The
	171	parameters for the function have the same meaning as for RSA_sign().
	172
	173	RSA_meth_get_verify() and RSA_meth_set_verify() get and set the
	174	function used for verifying an RSA signature respectively. This
	175	function will be called in response to the application calling
	176	RSA_verify(). The parameters for the function have the same meaning as
	177	for RSA_verify().
	178
	179	RSA_meth_get_mod_exp() and RSA_meth_set_mod_exp() get and set the
	180	function used for CRT computations.
	181
	182	RSA_meth_get_bn_mod_exp() and RSA_meth_set_bn_mod_exp() get and set
	183	the function used for CRT computations, specifically the following
	184	value:
	185
	186	r = a ^ p mod m
	187
	188	Both the mod_exp() and bn_mod_exp() functions are called by the
	189	default OpenSSL method during encryption, decryption, signing and
	190	verification.
	191
	192	RSA_meth_get_init() and RSA_meth_set_init() get and set the function
	193	used for creating a new RSA instance respectively. This function will
	194	be called in response to the application calling RSA_new() (if the
	195	current default RSA_METHOD is this one) or RSA_new_method(). The
	196	RSA_new() and RSA_new_method() functions will allocate the memory for
	197	the new RSA object, and a pointer to this newly allocated structure
	198	will be passed as a parameter to the function. This function may be
	199	NULL.
200
201	RSA_meth_get_finish() and RSA_meth_set_finish() get and set the
202	function used for destroying an instance of an RSA object respectively.
203	This function will be called in response to the application calling
204	RSA_free(). A pointer to the RSA to be destroyed is passed as a
205	parameter. The destroy function should be used for RSA implementation
206	specific clean up. The memory for the RSA itself should not be freed
207	by this function. This function may be NULL.
208
209	RSA_meth_get_keygen() and RSA_meth_set_keygen() get and set the
210	function used for generating a new RSA key pair respectively. This
211	function will be called in response to the application calling
665d899f PY	212	RSA_generate_key_ex(). The parameter for the function has the same
	213	meaning as for RSA_generate_key_ex().
	214
	215	RSA_meth_get_multi_prime_keygen() and RSA_meth_set_multi_prime_keygen() get
	216	and set the function used for generating a new multi-prime RSA key pair
	217	respectively. This function will be called in response to the application calling
	218	RSA_generate_multi_prime_key(). The parameter for the function has the same
	219	meaning as for RSA_generate_multi_prime_key().
cd35e6c0 RL	220
	221	RSA_meth_get_pub_enc(), RSA_meth_set_pub_enc(),
	222	RSA_meth_get_pub_dec(), RSA_meth_set_pub_dec(),
	223	RSA_meth_get_priv_enc(), RSA_meth_set_priv_enc(),
	224	RSA_meth_get_priv_dec(), RSA_meth_set_priv_dec() get and set the
	225	functions used for public and private key encryption and decryption.
	226	These functions will be called in response to the application calling
	227	RSA_public_encrypt(), RSA_private_decrypt(), RSA_private_encrypt() and
	228	RSA_public_decrypt() and take the same parameters as those.
	229
	230
	231	=head1 RETURN VALUES
	232
	233	RSA_meth_new() and RSA_meth_dup() return the newly allocated
	234	RSA_METHOD object or NULL on failure.
	235
	236	RSA_meth_get0_name() and RSA_meth_get_flags() return the name and
	237	flags associated with the RSA_METHOD respectively.
	238
	239	All other RSA_meth_get_*() functions return the appropriate function
	240	pointer that has been set in the RSA_METHOD, or NULL if no such
	241	pointer has yet been set.
	242
	243	RSA_meth_set1_name and all RSA_meth_set_*() functions return 1 on
	244	success or 0 on failure.
	245
	246	=head1 SEE ALSO
	247
665d899f PY	248	L<RSA_new(3)>, L<RSA_generate_key_ex(3)>, L<RSA_sign(3)>,
	249	L<RSA_set_method(3)>, L<RSA_size(3)>, L<RSA_get0_key(3)>,
	250	L<RSA_generate_multi_prime_key(3)>
cd35e6c0 RL	251
	252	=head1 HISTORY
	253
4fd8a3e1 P	254	All of these functions were deprecated in OpenSSL 3.0.
4fd8a3e1 P	255
665d899f PY	256	RSA_meth_get_multi_prime_keygen() and RSA_meth_set_multi_prime_keygen() were
	257	added in OpenSSL 1.1.1.
	258
	259	Other functions described here were added in OpenSSL 1.1.0.
cd35e6c0	260
e2f92610 RS	261	=head1 COPYRIGHT
e2f92610 RS	262
c4d3c19b	263	Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
e2f92610	264
4746f25a	265	Licensed under the Apache License 2.0 (the "License"). You may not use
e2f92610 RS	266	this file except in compliance with the License. You can obtain a copy
	267	in the file LICENSE in the source distribution or at
	268	L<https://www.openssl.org/source/license.html>.
	269
	270	=cut