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+/* $OpenBSD: rsa.h,v 1.40 2019/06/05 15:41:33 gilles Exp $ */
+/* 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.]
+ */
+
+#ifndef HEADER_RSA_H
+#define HEADER_RSA_H
+
+#include <openssl/opensslconf.h>
+
+#include <openssl/asn1.h>
+
+#ifndef OPENSSL_NO_BIO
+#include <openssl/bio.h>
+#endif
+#include <openssl/crypto.h>
+#include <openssl/ossl_typ.h>
+#ifndef OPENSSL_NO_DEPRECATED
+#include <openssl/bn.h>
+#endif
+
+#ifdef OPENSSL_NO_RSA
+#error RSA is disabled.
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Declared already in ossl_typ.h */
+/* typedef struct rsa_st RSA; */
+/* typedef struct rsa_meth_st RSA_METHOD; */
+
+struct rsa_meth_st {
+ const char *name;
+ int (*rsa_pub_enc)(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+ int (*rsa_pub_dec)(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+ int (*rsa_priv_enc)(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+ int (*rsa_priv_dec)(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+ int (*rsa_mod_exp)(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
+ BN_CTX *ctx); /* Can be null */
+ int (*bn_mod_exp)(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); /* Can be null */
+ int (*init)(RSA *rsa); /* called at new */
+ int (*finish)(RSA *rsa); /* called at free */
+ int flags; /* RSA_METHOD_FLAG_* things */
+ char *app_data; /* may be needed! */
+/* New sign and verify functions: some libraries don't allow arbitrary data
+ * to be signed/verified: this allows them to be used. Note: for this to work
+ * the RSA_public_decrypt() and RSA_private_encrypt() should *NOT* be used
+ * RSA_sign(), RSA_verify() should be used instead. Note: for backwards
+ * compatibility this functionality is only enabled if the RSA_FLAG_SIGN_VER
+ * option is set in 'flags'.
+ */
+ int (*rsa_sign)(int type, const unsigned char *m, unsigned int m_length,
+ unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
+ int (*rsa_verify)(int dtype, const unsigned char *m,
+ unsigned int m_length, const unsigned char *sigbuf,
+ unsigned int siglen, const RSA *rsa);
+/* If this callback is NULL, the builtin software RSA key-gen will be used. This
+ * is for behavioural compatibility whilst the code gets rewired, but one day
+ * it would be nice to assume there are no such things as "builtin software"
+ * implementations. */
+ int (*rsa_keygen)(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
+};
+
+struct rsa_st {
+ /* The first parameter is used to pickup errors where
+ * this is passed instead of aEVP_PKEY, it is set to 0 */
+ int pad;
+ long version;
+ const RSA_METHOD *meth;
+ /* functional reference if 'meth' is ENGINE-provided */
+ ENGINE *engine;
+ BIGNUM *n;
+ BIGNUM *e;
+ BIGNUM *d;
+ BIGNUM *p;
+ BIGNUM *q;
+ BIGNUM *dmp1;
+ BIGNUM *dmq1;
+ BIGNUM *iqmp;
+ /* be careful using this if the RSA structure is shared */
+ CRYPTO_EX_DATA ex_data;
+ int references;
+ int flags;
+
+ /* Used to cache montgomery values */
+ BN_MONT_CTX *_method_mod_n;
+ BN_MONT_CTX *_method_mod_p;
+ BN_MONT_CTX *_method_mod_q;
+
+ /* all BIGNUM values are actually in the following data, if it is not
+ * NULL */
+ BN_BLINDING *blinding;
+ BN_BLINDING *mt_blinding;
+};
+
+#ifndef OPENSSL_RSA_MAX_MODULUS_BITS
+# define OPENSSL_RSA_MAX_MODULUS_BITS 16384
+#endif
+
+#ifndef OPENSSL_RSA_SMALL_MODULUS_BITS
+# define OPENSSL_RSA_SMALL_MODULUS_BITS 3072
+#endif
+#ifndef OPENSSL_RSA_MAX_PUBEXP_BITS
+# define OPENSSL_RSA_MAX_PUBEXP_BITS 64 /* exponent limit enforced for "large" modulus only */
+#endif
+
+#define RSA_3 0x3L
+#define RSA_F4 0x10001L
+
+/* Don't check pub/private match. */
+#define RSA_METHOD_FLAG_NO_CHECK 0x0001
+
+#define RSA_FLAG_CACHE_PUBLIC 0x0002
+#define RSA_FLAG_CACHE_PRIVATE 0x0004
+#define RSA_FLAG_BLINDING 0x0008
+#define RSA_FLAG_THREAD_SAFE 0x0010
+
+/*
+ * This flag means the private key operations will be handled by rsa_mod_exp
+ * and that they do not depend on the private key components being present:
+ * for example a key stored in external hardware. Without this flag bn_mod_exp
+ * gets called when private key components are absent.
+ */
+#define RSA_FLAG_EXT_PKEY 0x0020
+
+/*
+ * This flag in the RSA_METHOD enables the new rsa_sign, rsa_verify functions.
+ */
+#define RSA_FLAG_SIGN_VER 0x0040
+
+/*
+ * The built-in RSA implementation uses blinding by default, but other engines
+ * might not need it.
+ */
+#define RSA_FLAG_NO_BLINDING 0x0080
+
+#define EVP_PKEY_CTX_set_rsa_padding(ctx, pad) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, EVP_PKEY_CTRL_RSA_PADDING, \
+ pad, NULL)
+
+#define EVP_PKEY_CTX_get_rsa_padding(ctx, ppad) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, -1, \
+ EVP_PKEY_CTRL_GET_RSA_PADDING, 0, ppad)
+
+#define EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, len) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
+ (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
+ EVP_PKEY_CTRL_RSA_PSS_SALTLEN, \
+ len, NULL)
+
+#define EVP_PKEY_CTX_get_rsa_pss_saltlen(ctx, plen) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, \
+ (EVP_PKEY_OP_SIGN|EVP_PKEY_OP_VERIFY), \
+ EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN, \
+ 0, plen)
+
+#define EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, bits) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
+ EVP_PKEY_CTRL_RSA_KEYGEN_BITS, bits, NULL)
+
+#define EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_KEYGEN, \
+ EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP, 0, pubexp)
+
+#define EVP_PKEY_CTX_set_rsa_mgf1_md(ctx, md) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_SIG, \
+ EVP_PKEY_CTRL_RSA_MGF1_MD, 0, (void *)md)
+
+#define EVP_PKEY_CTX_get_rsa_mgf1_md(ctx, pmd) \
+ EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_SIG, \
+ EVP_PKEY_CTRL_GET_RSA_MGF1_MD, 0, (void *)pmd)
+
+#define EVP_PKEY_CTRL_RSA_PADDING (EVP_PKEY_ALG_CTRL + 1)
+#define EVP_PKEY_CTRL_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 2)
+
+#define EVP_PKEY_CTRL_RSA_KEYGEN_BITS (EVP_PKEY_ALG_CTRL + 3)
+#define EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP (EVP_PKEY_ALG_CTRL + 4)
+#define EVP_PKEY_CTRL_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 5)
+
+#define EVP_PKEY_CTRL_GET_RSA_PADDING (EVP_PKEY_ALG_CTRL + 6)
+#define EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN (EVP_PKEY_ALG_CTRL + 7)
+#define EVP_PKEY_CTRL_GET_RSA_MGF1_MD (EVP_PKEY_ALG_CTRL + 8)
+
+#define RSA_PKCS1_PADDING 1
+#define RSA_SSLV23_PADDING 2
+#define RSA_NO_PADDING 3
+#define RSA_PKCS1_OAEP_PADDING 4
+#define RSA_X931_PADDING 5
+/* EVP_PKEY_ only */
+#define RSA_PKCS1_PSS_PADDING 6
+
+#define RSA_PKCS1_PADDING_SIZE 11
+
+#define RSA_set_app_data(s,arg) RSA_set_ex_data(s,0,arg)
+#define RSA_get_app_data(s) RSA_get_ex_data(s,0)
+
+RSA *RSA_new(void);
+RSA *RSA_new_method(ENGINE *engine);
+int RSA_bits(const RSA *rsa);
+int RSA_size(const RSA *rsa);
+
+/* Deprecated version */
+#ifndef OPENSSL_NO_DEPRECATED
+RSA *RSA_generate_key(int bits, unsigned long e,
+ void (*callback)(int, int, void *), void *cb_arg);
+#endif /* !defined(OPENSSL_NO_DEPRECATED) */
+
+/* New version */
+int RSA_generate_key_ex(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb);
+
+int RSA_check_key(const RSA *);
+/* next 4 return -1 on error */
+int RSA_public_encrypt(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+int RSA_private_encrypt(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+int RSA_public_decrypt(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+int RSA_private_decrypt(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+void RSA_free(RSA *r);
+/* "up" the RSA object's reference count */
+int RSA_up_ref(RSA *r);
+
+int RSA_flags(const RSA *r);
+
+void RSA_set_default_method(const RSA_METHOD *meth);
+const RSA_METHOD *RSA_get_default_method(void);
+const RSA_METHOD *RSA_get_method(const RSA *rsa);
+int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
+
+/* these are the actual SSLeay RSA functions */
+const RSA_METHOD *RSA_PKCS1_SSLeay(void);
+
+const RSA_METHOD *RSA_null_method(void);
+
+RSA *d2i_RSAPublicKey(RSA **a, const unsigned char **in, long len);
+int i2d_RSAPublicKey(const RSA *a, unsigned char **out);
+extern const ASN1_ITEM RSAPublicKey_it;
+RSA *d2i_RSAPrivateKey(RSA **a, const unsigned char **in, long len);
+int i2d_RSAPrivateKey(const RSA *a, unsigned char **out);
+extern const ASN1_ITEM RSAPrivateKey_it;
+
+typedef struct rsa_pss_params_st {
+ X509_ALGOR *hashAlgorithm;
+ X509_ALGOR *maskGenAlgorithm;
+ ASN1_INTEGER *saltLength;
+ ASN1_INTEGER *trailerField;
+} RSA_PSS_PARAMS;
+
+RSA_PSS_PARAMS *RSA_PSS_PARAMS_new(void);
+void RSA_PSS_PARAMS_free(RSA_PSS_PARAMS *a);
+RSA_PSS_PARAMS *d2i_RSA_PSS_PARAMS(RSA_PSS_PARAMS **a, const unsigned char **in, long len);
+int i2d_RSA_PSS_PARAMS(RSA_PSS_PARAMS *a, unsigned char **out);
+extern const ASN1_ITEM RSA_PSS_PARAMS_it;
+
+int RSA_print_fp(FILE *fp, const RSA *r, int offset);
+
+#ifndef OPENSSL_NO_BIO
+int RSA_print(BIO *bp, const RSA *r, int offset);
+#endif
+
+#ifndef OPENSSL_NO_RC4
+int i2d_RSA_NET(const RSA *a, unsigned char **pp,
+ int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey);
+RSA *d2i_RSA_NET(RSA **a, const unsigned char **pp, long length,
+ int (*cb)(char *buf, int len, const char *prompt, int verify), int sgckey);
+
+int i2d_Netscape_RSA(const RSA *a, unsigned char **pp,
+ int (*cb)(char *buf, int len, const char *prompt, int verify));
+RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length,
+ int (*cb)(char *buf, int len, const char *prompt, int verify));
+#endif
+
+/* The following 2 functions sign and verify a X509_SIG ASN1 object
+ * inside PKCS#1 padded RSA encryption */
+int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
+ unsigned char *sigret, unsigned int *siglen, RSA *rsa);
+int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
+ const unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
+
+/* The following 2 function sign and verify a ASN1_OCTET_STRING
+ * object inside PKCS#1 padded RSA encryption */
+int RSA_sign_ASN1_OCTET_STRING(int type, const unsigned char *m,
+ unsigned int m_length, unsigned char *sigret, unsigned int *siglen,
+ RSA *rsa);
+int RSA_verify_ASN1_OCTET_STRING(int type, const unsigned char *m,
+ unsigned int m_length, unsigned char *sigbuf, unsigned int siglen,
+ RSA *rsa);
+
+int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
+void RSA_blinding_off(RSA *rsa);
+BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *ctx);
+
+int RSA_padding_add_PKCS1_type_1(unsigned char *to, int tlen,
+ const unsigned char *f, int fl);
+int RSA_padding_check_PKCS1_type_1(unsigned char *to, int tlen,
+ const unsigned char *f, int fl, int rsa_len);
+int RSA_padding_add_PKCS1_type_2(unsigned char *to, int tlen,
+ const unsigned char *f, int fl);
+int RSA_padding_check_PKCS1_type_2(unsigned char *to, int tlen,
+ const unsigned char *f, int fl, int rsa_len);
+int PKCS1_MGF1(unsigned char *mask, long len,
+ const unsigned char *seed, long seedlen, const EVP_MD *dgst);
+int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
+ const unsigned char *f, int fl,
+ const unsigned char *p, int pl);
+int RSA_padding_check_PKCS1_OAEP(unsigned char *to, int tlen,
+ const unsigned char *f, int fl, int rsa_len,
+ const unsigned char *p, int pl);
+int RSA_padding_add_none(unsigned char *to, int tlen,
+ const unsigned char *f, int fl);
+int RSA_padding_check_none(unsigned char *to, int tlen,
+ const unsigned char *f, int fl, int rsa_len);
+int RSA_padding_add_X931(unsigned char *to, int tlen,
+ const unsigned char *f, int fl);
+int RSA_padding_check_X931(unsigned char *to, int tlen,
+ const unsigned char *f, int fl, int rsa_len);
+int RSA_X931_hash_id(int nid);
+
+int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const unsigned char *EM, int sLen);
+int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash, const EVP_MD *Hash, int sLen);
+
+int RSA_verify_PKCS1_PSS_mgf1(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const EVP_MD *mgf1Hash, const unsigned char *EM,
+ int sLen);
+
+int RSA_padding_add_PKCS1_PSS_mgf1(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash, const EVP_MD *Hash, const EVP_MD *mgf1Hash,
+ int sLen);
+
+int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
+int RSA_set_ex_data(RSA *r, int idx, void *arg);
+void *RSA_get_ex_data(const RSA *r, int idx);
+
+void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e,
+ const BIGNUM **d);
+int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d);
+void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1,
+ const BIGNUM **iqmp);
+int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp);
+void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q);
+int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q);
+void RSA_clear_flags(RSA *r, int flags);
+int RSA_test_flags(const RSA *r, int flags);
+void RSA_set_flags(RSA *r, int flags);
+
+RSA *RSAPublicKey_dup(RSA *rsa);
+RSA *RSAPrivateKey_dup(RSA *rsa);
+
+/* If this flag is set the RSA method is FIPS compliant and can be used
+ * in FIPS mode. This is set in the validated module method. If an
+ * application sets this flag in its own methods it is its responsibility
+ * to ensure the result is compliant.
+ */
+
+#define RSA_FLAG_FIPS_METHOD 0x0400
+
+/* If this flag is set the operations normally disabled in FIPS mode are
+ * permitted it is then the applications responsibility to ensure that the
+ * usage is compliant.
+ */
+
+#define RSA_FLAG_NON_FIPS_ALLOW 0x0400
+/* Application has decided PRNG is good enough to generate a key: don't
+ * check.
+ */
+#define RSA_FLAG_CHECKED 0x0800
+
+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);
+int RSA_meth_set1_name(RSA_METHOD *meth, const char *name);
+int RSA_meth_set_priv_enc(RSA_METHOD *meth, int (*priv_enc)(int flen,
+ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
+int RSA_meth_set_priv_dec(RSA_METHOD *meth, int (*priv_dec)(int flen,
+ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
+int (*RSA_meth_get_finish(const RSA_METHOD *meth))(RSA *rsa);
+int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish)(RSA *rsa));
+int RSA_meth_set_pub_enc(RSA_METHOD *meth, int (*pub_enc)(int flen,
+ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
+int RSA_meth_set_pub_dec(RSA_METHOD *meth, int (*pub_dec)(int flen,
+ const unsigned char *from, unsigned char *to, RSA *rsa, int padding));
+int RSA_meth_set_mod_exp(RSA_METHOD *meth, int (*mod_exp)(BIGNUM *r0,
+ const BIGNUM *i, RSA *rsa, BN_CTX *ctx));
+int RSA_meth_set_bn_mod_exp(RSA_METHOD *meth, int (*bn_mod_exp)(BIGNUM *r,
+ const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx));
+int RSA_meth_set_init(RSA_METHOD *meth, int (*init)(RSA *rsa));
+int RSA_meth_set_keygen(RSA_METHOD *meth, int (*keygen)(RSA *rsa, int bits,
+ BIGNUM *e, BN_GENCB *cb));
+int RSA_meth_set_flags(RSA_METHOD *meth, int flags);
+int RSA_meth_set0_app_data(RSA_METHOD *meth, void *app_data);
+const char *RSA_meth_get0_name(const RSA_METHOD *);
+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_get_pub_dec(const RSA_METHOD *meth))(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_get_priv_dec(const RSA_METHOD *meth))(int flen,
+ const unsigned char *from, unsigned char *to, RSA *rsa, int padding);
+int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))(BIGNUM *r0, const BIGNUM *i,
+ RSA *rsa, BN_CTX *ctx);
+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_get_init(const RSA_METHOD *meth))(RSA *rsa);
+int (*RSA_meth_get_keygen(const RSA_METHOD *meth))(RSA *rsa, int bits, BIGNUM *e,
+ BN_GENCB *cb);
+int RSA_meth_get_flags(const RSA_METHOD *meth);
+void *RSA_meth_get0_app_data(const RSA_METHOD *meth);
+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));
+
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_RSA_strings(void);
+
+/* Error codes for the RSA functions. */
+
+/* Function codes. */
+#define RSA_F_CHECK_PADDING_MD 140
+#define RSA_F_DO_RSA_PRINT 146
+#define RSA_F_INT_RSA_VERIFY 145
+#define RSA_F_MEMORY_LOCK 100
+#define RSA_F_OLD_RSA_PRIV_DECODE 147
+#define RSA_F_PKEY_RSA_CTRL 143
+#define RSA_F_PKEY_RSA_CTRL_STR 144
+#define RSA_F_PKEY_RSA_SIGN 142
+#define RSA_F_PKEY_RSA_VERIFY 154
+#define RSA_F_PKEY_RSA_VERIFYRECOVER 141
+#define RSA_F_RSA_BUILTIN_KEYGEN 129
+#define RSA_F_RSA_CHECK_KEY 123
+#define RSA_F_RSA_EAY_MOD_EXP 157
+#define RSA_F_RSA_EAY_PRIVATE_DECRYPT 101
+#define RSA_F_RSA_EAY_PRIVATE_ENCRYPT 102
+#define RSA_F_RSA_EAY_PUBLIC_DECRYPT 103
+#define RSA_F_RSA_EAY_PUBLIC_ENCRYPT 104
+#define RSA_F_RSA_GENERATE_KEY 105
+#define RSA_F_RSA_GENERATE_KEY_EX 155
+#define RSA_F_RSA_ITEM_VERIFY 156
+#define RSA_F_RSA_MEMORY_LOCK 130
+#define RSA_F_RSA_NEW_METHOD 106
+#define RSA_F_RSA_NULL 124
+#define RSA_F_RSA_NULL_MOD_EXP 131
+#define RSA_F_RSA_NULL_PRIVATE_DECRYPT 132
+#define RSA_F_RSA_NULL_PRIVATE_ENCRYPT 133
+#define RSA_F_RSA_NULL_PUBLIC_DECRYPT 134
+#define RSA_F_RSA_NULL_PUBLIC_ENCRYPT 135
+#define RSA_F_RSA_PADDING_ADD_NONE 107
+#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
+#define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125
+#define RSA_F_RSA_PADDING_ADD_PKCS1_PSS_MGF1 148
+#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
+#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
+#define RSA_F_RSA_PADDING_ADD_X931 127
+#define RSA_F_RSA_PADDING_CHECK_NONE 111
+#define RSA_F_RSA_PADDING_CHECK_PKCS1_OAEP 122
+#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_1 112
+#define RSA_F_RSA_PADDING_CHECK_PKCS1_TYPE_2 113
+#define RSA_F_RSA_PADDING_CHECK_X931 128
+#define RSA_F_RSA_PRINT 115
+#define RSA_F_RSA_PRINT_FP 116
+#define RSA_F_RSA_PRIVATE_DECRYPT 150
+#define RSA_F_RSA_PRIVATE_ENCRYPT 151
+#define RSA_F_RSA_PRIV_DECODE 137
+#define RSA_F_RSA_PRIV_ENCODE 138
+#define RSA_F_RSA_PUBLIC_DECRYPT 152
+#define RSA_F_RSA_PUBLIC_ENCRYPT 153
+#define RSA_F_RSA_PUB_DECODE 139
+#define RSA_F_RSA_SETUP_BLINDING 136
+#define RSA_F_RSA_SIGN 117
+#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
+#define RSA_F_RSA_VERIFY 119
+#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
+#define RSA_F_RSA_VERIFY_PKCS1_PSS 126
+#define RSA_F_RSA_VERIFY_PKCS1_PSS_MGF1 149
+
+/* Reason codes. */
+#define RSA_R_ALGORITHM_MISMATCH 100
+#define RSA_R_BAD_E_VALUE 101
+#define RSA_R_BAD_FIXED_HEADER_DECRYPT 102
+#define RSA_R_BAD_PAD_BYTE_COUNT 103
+#define RSA_R_BAD_SIGNATURE 104
+#define RSA_R_BLOCK_TYPE_IS_NOT_01 106
+#define RSA_R_BLOCK_TYPE_IS_NOT_02 107
+#define RSA_R_DATA_GREATER_THAN_MOD_LEN 108
+#define RSA_R_DATA_TOO_LARGE 109
+#define RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE 110
+#define RSA_R_DATA_TOO_LARGE_FOR_MODULUS 132
+#define RSA_R_DATA_TOO_SMALL 111
+#define RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE 122
+#define RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY 112
+#define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124
+#define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125
+#define RSA_R_D_E_NOT_CONGRUENT_TO_1 123
+#define RSA_R_FIRST_OCTET_INVALID 133
+#define RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE 144
+#define RSA_R_INVALID_DIGEST_LENGTH 143
+#define RSA_R_INVALID_HEADER 137
+#define RSA_R_INVALID_KEYBITS 145
+#define RSA_R_INVALID_MESSAGE_LENGTH 131
+#define RSA_R_INVALID_MGF1_MD 156
+#define RSA_R_INVALID_PADDING 138
+#define RSA_R_INVALID_PADDING_MODE 141
+#define RSA_R_INVALID_PSS_PARAMETERS 149
+#define RSA_R_INVALID_PSS_SALTLEN 146
+#define RSA_R_INVALID_SALT_LENGTH 150
+#define RSA_R_INVALID_TRAILER 139
+#define RSA_R_INVALID_X931_DIGEST 142
+#define RSA_R_IQMP_NOT_INVERSE_OF_Q 126
+#define RSA_R_KEY_SIZE_TOO_SMALL 120
+#define RSA_R_LAST_OCTET_INVALID 134
+#define RSA_R_MODULUS_TOO_LARGE 105
+#define RSA_R_NON_FIPS_RSA_METHOD 157
+#define RSA_R_NO_PUBLIC_EXPONENT 140
+#define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
+#define RSA_R_N_DOES_NOT_EQUAL_P_Q 127
+#define RSA_R_OAEP_DECODING_ERROR 121
+#define RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE 158
+#define RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE 148
+#define RSA_R_PADDING_CHECK_FAILED 114
+#define RSA_R_P_NOT_PRIME 128
+#define RSA_R_Q_NOT_PRIME 129
+#define RSA_R_RSA_OPERATIONS_NOT_SUPPORTED 130
+#define RSA_R_SLEN_CHECK_FAILED 136
+#define RSA_R_SLEN_RECOVERY_FAILED 135
+#define RSA_R_SSLV3_ROLLBACK_ATTACK 115
+#define RSA_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 116
+#define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
+#define RSA_R_UNKNOWN_MASK_DIGEST 151
+#define RSA_R_UNKNOWN_PADDING_TYPE 118
+#define RSA_R_UNKNOWN_PSS_DIGEST 152
+#define RSA_R_UNSUPPORTED_MASK_ALGORITHM 153
+#define RSA_R_UNSUPPORTED_MASK_PARAMETER 154
+#define RSA_R_UNSUPPORTED_SIGNATURE_TYPE 155
+#define RSA_R_VALUE_MISSING 147
+#define RSA_R_WRONG_SIGNATURE_LENGTH 119
+
+#ifdef __cplusplus
+}
+#endif
+#endif