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This library provides a simple and nice C++ wrapper around these libraries, so that programmers can concentrate on functionality. It offers general support for PCSC-lite, OpenSSL, PKCS#11, plus specific functionality for the SuisseID.
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libpcscxx/src/openssl-compatibility.hxx

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/*! @file
@id $Id$
*/
// 1 2 3 4 5 6 7 8
// 45678901234567890123456789012345678901234567890123456789012345678901234567890
#ifndef OPENSSL_COMPATIBILITY_HXX
#define OPENSSL_COMPATIBILITY_HXX
#undef DATADIR
#include <openssl/opensslv.h>
#ifndef OPENSSL_VERSION_NUMBER
# error OpenSSL Version Number not Found
#elif OPENSSL_VERSION_NUMBER < 0x00908000L
# ifdef ALLOW_SSL_OLDER_THAN_0_8
# warning OpenSSL older than 0.8 detected please upgrade to 1.0
# else
# error OpenSSL older than 0.8 detected please upgrade to 1.0
# endif
# define OPENSSL_0_7
# define V0_CONST
# define CV_STACK
# define CV_X509
#elif OPENSSL_VERSION_NUMBER < 0x10000000L
# ifdef ALLOW_SSL_0_8
# warning OpenSSL 0.8 detected please upgrade to 1.0
# else
# error OpenSSL 0.8 detected please upgrade to 1.0
# endif
# define OPENSSL_0_8
# define V0_CONST const
# define CV_STACK
# define CV_X509
#else
# define OPENSSL_1_0
# define V0_CONST const
# define CV_STACK (_STACK*)
# define CV_X509 (STACK_OF(X509)*)
#endif
#ifndef OPENSSL_VERSION_NUMBER
# error OpenSSL Version Number not Found
#elif OPENSSL_VERSION_NUMBER < 0x10000000L
# define OPENSSL_0
# define OPENSSL_V0_CONST
#else
# define OPENSSL_1
# define OPENSSL_V0_CONST const
#endif
#include <openssl/crypto.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/evp.h>
#include <openssl/ossl_typ.h>
#include <string>
namespace openssl {
//==============================================================================
//! @addtogroup opensslcompat
//@{
/// Get OpenSSL runtime and buildtime version information
/** To be displyed in an about box. It also shows mandatory license
information. */
std::string version();
//------------------------------------------------------------------------------
#if OPENSSL_VERSION_NUMBER < 0x10100000L
/* The following code is copied from:
https://wiki.openssl.org/index.php/OpenSSL_1.1.0_Changes
Provide the new functions to old version of OpenSSL. */
#include <string.h>
#include <openssl/engine.h>
inline static void *OPENSSL_zalloc(size_t num) {
void *ret = OPENSSL_malloc(num);
if (ret != NULL)
memset(ret, 0, num);
return ret;
}
inline int RSA_set0_key(RSA *r, BIGNUM *n, BIGNUM *e, BIGNUM *d) {
/* If the fields n and e in r are NULL, the corresponding input
* parameters MUST be non-NULL for n and e. d may be
* left NULL (in case only the public key is used).
*/
if ((r->n == NULL && n == NULL)
|| (r->e == NULL && e == NULL))
return 0;
if (n != NULL) {
BN_free(r->n);
r->n = n;
}
if (e != NULL) {
BN_free(r->e);
r->e = e;
}
if (d != NULL) {
BN_free(r->d);
r->d = d;
}
return 1;
}
inline int RSA_set0_factors(RSA *r, BIGNUM *p, BIGNUM *q) {
/* If the fields p and q in r are NULL, the corresponding input
* parameters MUST be non-NULL.
*/
if ((r->p == NULL && p == NULL)
|| (r->q == NULL && q == NULL))
return 0;
if (p != NULL) {
BN_free(r->p);
r->p = p;
}
if (q != NULL) {
BN_free(r->q);
r->q = q;
}
return 1;
}
inline int RSA_set0_crt_params(RSA *r, BIGNUM *dmp1, BIGNUM *dmq1, BIGNUM *iqmp) {
/* If the fields dmp1, dmq1 and iqmp in r are NULL, the corresponding input
* parameters MUST be non-NULL.
*/
if ((r->dmp1 == NULL && dmp1 == NULL)
|| (r->dmq1 == NULL && dmq1 == NULL)
|| (r->iqmp == NULL && iqmp == NULL))
return 0;
if (dmp1 != NULL) {
BN_free(r->dmp1);
r->dmp1 = dmp1;
}
if (dmq1 != NULL) {
BN_free(r->dmq1);
r->dmq1 = dmq1;
}
if (iqmp != NULL) {
BN_free(r->iqmp);
r->iqmp = iqmp;
}
return 1;
}
inline ENGINE* RSA_get0_engine(const RSA *r) {
return r->engine;
}
inline void RSA_get0_key(const RSA *r, const BIGNUM **n, const BIGNUM **e, const BIGNUM **d) {
if (n != NULL)
*n = r->n;
if (e != NULL)
*e = r->e;
if (d != NULL)
*d = r->d;
}
inline void RSA_get0_factors(const RSA *r, const BIGNUM **p, const BIGNUM **q) {
if (p != NULL)
*p = r->p;
if (q != NULL)
*q = r->q;
}
inline void RSA_get0_crt_params(const RSA *r, const BIGNUM **dmp1, const BIGNUM **dmq1, const BIGNUM **iqmp) {
if (dmp1 != NULL)
*dmp1 = r->dmp1;
if (dmq1 != NULL)
*dmq1 = r->dmq1;
if (iqmp != NULL)
*iqmp = r->iqmp;
}
inline void DSA_get0_pqg(const DSA *d, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g) {
if (p != NULL)
*p = d->p;
if (q != NULL)
*q = d->q;
if (g != NULL)
*g = d->g;
}
inline int DSA_set0_pqg(DSA *d, BIGNUM *p, BIGNUM *q, BIGNUM *g) {
/* If the fields p, q and g in d are NULL, the corresponding input
* parameters MUST be non-NULL.
*/
if ((d->p == NULL && p == NULL)
|| (d->q == NULL && q == NULL)
|| (d->g == NULL && g == NULL))
return 0;
if (p != NULL) {
BN_free(d->p);
d->p = p;
}
if (q != NULL) {
BN_free(d->q);
d->q = q;
}
if (g != NULL) {
BN_free(d->g);
d->g = g;
}
return 1;
}
inline void DSA_get0_key(const DSA *d, const BIGNUM **pub_key, const BIGNUM **priv_key) {
if (pub_key != NULL)
*pub_key = d->pub_key;
if (priv_key != NULL)
*priv_key = d->priv_key;
}
inline int DSA_set0_key(DSA *d, BIGNUM *pub_key, BIGNUM *priv_key) {
/* If the field pub_key in d is NULL, the corresponding input
* parameters MUST be non-NULL. The priv_key field may
* be left NULL.
*/
if (d->pub_key == NULL && pub_key == NULL)
return 0;
if (pub_key != NULL) {
BN_free(d->pub_key);
d->pub_key = pub_key;
}
if (priv_key != NULL) {
BN_free(d->priv_key);
d->priv_key = priv_key;
}
return 1;
}
inline void DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) {
if (pr != NULL)
*pr = sig->r;
if (ps != NULL)
*ps = sig->s;
}
inline int DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s) {
if (r == NULL || s == NULL)
return 0;
BN_clear_free(sig->r);
BN_clear_free(sig->s);
sig->r = r;
sig->s = s;
return 1;
}
inline void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps) {
if (pr != NULL)
*pr = sig->r;
if (ps != NULL)
*ps = sig->s;
}
inline int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s) {
if (r == NULL || s == NULL)
return 0;
BN_clear_free(sig->r);
BN_clear_free(sig->s);
sig->r = r;
sig->s = s;
return 1;
}
inline void DH_get0_pqg(const DH *dh, const BIGNUM **p, const BIGNUM **q, const BIGNUM **g) {
if (p != NULL)
*p = dh->p;
if (q != NULL)
*q = dh->q;
if (g != NULL)
*g = dh->g;
}
inline int DH_set0_pqg(DH *dh, BIGNUM *p, BIGNUM *q, BIGNUM *g) {
/* If the fields p and g in d are NULL, the corresponding input
* parameters MUST be non-NULL. q may remain NULL.
*/
if ((dh->p == NULL && p == NULL)
|| (dh->g == NULL && g == NULL))
return 0;
if (p != NULL) {
BN_free(dh->p);
dh->p = p;
}
if (q != NULL) {
BN_free(dh->q);
dh->q = q;
}
if (g != NULL) {
BN_free(dh->g);
dh->g = g;
}
if (q != NULL) {
dh->length = BN_num_bits(q);
}
return 1;
}
inline void DH_get0_key(const DH *dh, const BIGNUM **pub_key, const BIGNUM **priv_key) {
if (pub_key != NULL)
*pub_key = dh->pub_key;
if (priv_key != NULL)
*priv_key = dh->priv_key;
}
inline int DH_set0_key(DH *dh, BIGNUM *pub_key, BIGNUM *priv_key) {
/* If the field pub_key in dh is NULL, the corresponding input
* parameters MUST be non-NULL. The priv_key field may
* be left NULL.
*/
if (dh->pub_key == NULL && pub_key == NULL)
return 0;
if (pub_key != NULL) {
BN_free(dh->pub_key);
dh->pub_key = pub_key;
}
if (priv_key != NULL) {
BN_free(dh->priv_key);
dh->priv_key = priv_key;
}
return 1;
}
inline int DH_set_length(DH *dh, long length) {
dh->length = length;
return 1;
}
inline const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx) {
return ctx->iv;
}
inline unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx) {
return ctx->iv;
}
/** @bug
./openssl.hxx:416:26: error: invalid conversion from ‘void*’ to ‘EVP_MD_CTX* {aka env_md_ctx_st*}’ [-fpermissive]
return OPENSSL_zalloc(sizeof(EVP_MD_CTX));
^
*/
// EVP_MD_CTX *EVP_MD_CTX_new(void)
// {
// return OPENSSL_zalloc(sizeof(EVP_MD_CTX));
// }
inline void EVP_MD_CTX_free(EVP_MD_CTX *ctx) {
EVP_MD_CTX_cleanup(ctx);
OPENSSL_free(ctx);
}
inline RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth) {
RSA_METHOD *ret;
ret = (RSA_METHOD*)OPENSSL_malloc(sizeof(RSA_METHOD));
if (ret != NULL) {
memcpy(ret, meth, sizeof(*meth));
ret->name = OPENSSL_strdup(meth->name);
if (ret->name == NULL) {
OPENSSL_free(ret);
return NULL;
}
}
return ret;
}
inline int RSA_meth_set1_name(RSA_METHOD *meth, const char *name) {
char *tmpname;
tmpname = OPENSSL_strdup(name);
if (tmpname == NULL) {
return 0;
}
OPENSSL_free((char *)meth->name);
meth->name = tmpname;
return 1;
}
// inline 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)) {
// meth->rsa_priv_enc = priv_enc;
// return 1;
// }
// inline 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)) {
// meth->rsa_priv_dec = priv_dec;
// return 1;
// }
// inline int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish) (RSA *rsa)) {
// meth->finish = finish;
// return 1;
// }
inline void RSA_meth_free(RSA_METHOD *meth) {
if (meth != NULL) {
OPENSSL_free((char *)meth->name);
OPENSSL_free(meth);
}
}
inline int RSA_bits(const RSA *r) {
return (BN_num_bits(r->n));
}
inline RSA *EVP_PKEY_get0_RSA(EVP_PKEY *pkey) {
if (pkey->type != EVP_PKEY_RSA) {
return NULL;
}
return pkey->pkey.rsa;
}
inline DSA *EVP_PKEY_get0_DSA(EVP_PKEY *pkey) {
if (pkey->type != EVP_PKEY_DSA) {
return NULL;
}
return pkey->pkey.dsa;
}
inline DH *EVP_PKEY_get0_DH(EVP_PKEY *pkey) {
if (pkey->type != EVP_PKEY_DH) {
return NULL;
}
return pkey->pkey.dh;
}
// HMAC_CTX *HMAC_CTX_new(void)
// {
// HMAC_CTX *ctx = OPENSSL_malloc(sizeof(*ctx));
// if (ctx != NULL) {
// if (!HMAC_CTX_reset(ctx)) {
// HMAC_CTX_free(ctx);
// return NULL;
// }
// }
// return ctx;
// }
// void HMAC_CTX_free(HMAC_CTX *ctx)
// {
// if (ctx != NULL) {
// hmac_ctx_cleanup(ctx);
// EVP_MD_CTX_free(ctx->i_ctx);
// EVP_MD_CTX_free(ctx->o_ctx);
// EVP_MD_CTX_free(ctx->md_ctx);
// OPENSSL_free(ctx);
// }
// }
/* the following is copied and modified from openssl-1.1.0g/crypto/rsa/rsa_meth.c */
/*
* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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
* https://www.openssl.org/source/license.html
*/
// inline RSA_METHOD *RSA_meth_new(const char *name, int flags) {
// RSA_METHOD *meth = OPENSSL_zalloc(sizeof(*meth));
// if (meth != NULL) {
// meth->flags = flags;
// meth->name = OPENSSL_strdup(name);
// if (meth->name != NULL)
// return meth;
// OPENSSL_free(meth);
// }
// RSAerr(RSA_F_RSA_METH_NEW, ERR_R_MALLOC_FAILURE);
// return NULL;
// }
// inline void RSA_meth_free(RSA_METHOD *meth) {
// if (meth != NULL) {
// OPENSSL_free(meth->name);
// OPENSSL_free(meth);
// }
// }
// inline RSA_METHOD *RSA_meth_dup(const RSA_METHOD *meth) {
// RSA_METHOD *ret = OPENSSL_malloc(sizeof(*ret));
// if (ret != NULL) {
// memcpy(ret, meth, sizeof(*meth));
// ret->name = OPENSSL_strdup(meth->name);
// if (ret->name != NULL)
// return ret;
// OPENSSL_free(ret);
// }
// RSAerr(RSA_F_RSA_METH_DUP, ERR_R_MALLOC_FAILURE);
// return NULL;
// }
inline const char *RSA_meth_get0_name(const RSA_METHOD *meth) {
return meth->name;
}
// inline int RSA_meth_set1_name(RSA_METHOD *meth, const char *name) {
// char *tmpname = OPENSSL_strdup(name);
// if (tmpname == NULL) {
// RSAerr(RSA_F_RSA_METH_SET1_NAME, ERR_R_MALLOC_FAILURE);
// return 0;
// }
// OPENSSL_free(meth->name);
// meth->name = tmpname;
// return 1;
// }
inline int RSA_meth_get_flags(RSA_METHOD *meth) {
return meth->flags;
}
inline int RSA_meth_set_flags(RSA_METHOD *meth, int flags) {
meth->flags = flags;
return 1;
}
inline void *RSA_meth_get0_app_data(const RSA_METHOD *meth) {
return meth->app_data;
}
// inline int RSA_meth_set0_app_data(RSA_METHOD *meth, char *app_data) {
// meth->app_data = app_data;
// return 1;
// }
inline int (*RSA_meth_get_pub_enc(const RSA_METHOD *meth))
(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding) {
return meth->rsa_pub_enc;
}
inline 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)) {
meth->rsa_pub_enc = pub_enc;
return 1;
}
inline int (*RSA_meth_get_pub_dec(const RSA_METHOD *meth))
(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding) {
return meth->rsa_pub_dec;
}
inline 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)) {
meth->rsa_pub_dec = pub_dec;
return 1;
}
inline int (*RSA_meth_get_priv_enc(const RSA_METHOD *meth))
(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding) {
return meth->rsa_priv_enc;
}
inline 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)) {
meth->rsa_priv_enc = priv_enc;
return 1;
}
inline int (*RSA_meth_get_priv_dec(const RSA_METHOD *meth))
(int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding) {
return meth->rsa_priv_dec;
}
inline 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)) {
meth->rsa_priv_dec = priv_dec;
return 1;
}
/* Can be null */
inline int (*RSA_meth_get_mod_exp(const RSA_METHOD *meth))
(BIGNUM *r0, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) {
return meth->rsa_mod_exp;
}
inline int RSA_meth_set_mod_exp(RSA_METHOD *meth,
int (*mod_exp) (BIGNUM *r0, const BIGNUM *I, RSA *rsa,
BN_CTX *ctx)) {
meth->rsa_mod_exp = mod_exp;
return 1;
}
/* Can be null */
inline 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) {
return meth->bn_mod_exp;
}
inline 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)) {
meth->bn_mod_exp = bn_mod_exp;
return 1;
}
/* called at new */
inline int (*RSA_meth_get_init(const RSA_METHOD *meth)) (RSA *rsa) {
return meth->init;
}
inline int RSA_meth_set_init(RSA_METHOD *meth, int (*init) (RSA *rsa)) {
meth->init = init;
return 1;
}
inline /* called at free */
int (*RSA_meth_get_finish(const RSA_METHOD *meth)) (RSA *rsa) {
return meth->finish;
}
inline int RSA_meth_set_finish(RSA_METHOD *meth, int (*finish) (RSA *rsa)) {
meth->finish = finish;
return 1;
}
inline 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) {
return meth->rsa_sign;
}
inline int RSA_meth_set_sign(RSA_METHOD *meth,
int (*sign) (int type, const unsigned char *m,
unsigned int m_length,
unsigned char *sigret, unsigned int *siglen,
const RSA *rsa)) {
meth->rsa_sign = sign;
return 1;
}
inline 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) {
return meth->rsa_verify;
}
inline int RSA_meth_set_verify(RSA_METHOD *meth,
int (*verify) (int dtype, const unsigned char *m,
unsigned int m_length,
const unsigned char *sigbuf,
unsigned int siglen, const RSA *rsa)) {
meth->rsa_verify = verify;
return 1;
}
inline int (*RSA_meth_get_keygen(const RSA_METHOD *meth))
(RSA *rsa, int bits, BIGNUM *e, BN_GENCB *cb) {
return meth->rsa_keygen;
}
inline int RSA_meth_set_keygen(RSA_METHOD *meth,
int (*keygen) (RSA *rsa, int bits, BIGNUM *e,
BN_GENCB *cb)) {
meth->rsa_keygen = keygen;
return 1;
}
/* the following is copied and modified from OpenSSL 1.1 openssl-1.1.0g stack.h */
# define OPENSSL_STACK STACK
# define OPENSSL_sk_num sk_num
# define OPENSSL_sk_value sk_value
# define OPENSSL_sk_set sk_set
# define OPENSSL_sk_new sk_new
# define OPENSSL_sk_new_null sk_new_null
# define OPENSSL_sk_free sk_free
# define OPENSSL_sk_pop_free sk_pop_free
# define OPENSSL_sk_deep_copy sk_deep_copy
# define OPENSSL_sk_insert sk_insert
# define OPENSSL_sk_delete sk_delete
# define OPENSSL_sk_delete_ptr sk_delete_ptr
# define OPENSSL_sk_find sk_find
# define OPENSSL_sk_find_ex sk_find_ex
# define OPENSSL_sk_push sk_push
# define OPENSSL_sk_unshift sk_unshift
# define OPENSSL_sk_shift sk_shift
# define OPENSSL_sk_pop sk_pop
# define OPENSSL_sk_zero sk_zero
# define OPENSSL_sk_set_cmp_func sk_set_cmp_func
# define OPENSSL_sk_dup sk_dup
# define OPENSSL_sk_sort sk_sort
# define OPENSSL_sk_is_sorted sk_is_sorted
#endif
// end of copied code
//------------------------------------------------------------------------------
//@}
}
#endif