Merge the engine branch into the main trunk. All conflicts resolved.
At the same time, add VMS support for Rijndael.
This commit is contained in:
Richard Levitte
806
crypto/engine/hw_cswift.c
Normal file
806
crypto/engine/hw_cswift.c
Normal file
@@ -0,0 +1,806 @@
|
||||
/* crypto/engine/hw_cswift.c */
|
||||
/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
|
||||
* project 2000.
|
||||
*/
|
||||
/* ====================================================================
|
||||
* Copyright (c) 1999 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
|
||||
* licensing@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).
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <openssl/crypto.h>
|
||||
#include "cryptlib.h"
|
||||
#include <openssl/dso.h>
|
||||
#include "engine_int.h"
|
||||
#include <openssl/engine.h>
|
||||
|
||||
#ifndef NO_HW
|
||||
#ifndef NO_HW_CSWIFT
|
||||
|
||||
/* Attribution notice: Rainbow have generously allowed me to reproduce
|
||||
* the necessary definitions here from their API. This means the support
|
||||
* can build independently of whether application builders have the
|
||||
* API or hardware. This will allow developers to easily produce software
|
||||
* that has latent hardware support for any users that have accelerators
|
||||
* installed, without the developers themselves needing anything extra.
|
||||
*
|
||||
* I have only clipped the parts from the CryptoSwift header files that
|
||||
* are (or seem) relevant to the CryptoSwift support code. This is
|
||||
* simply to keep the file sizes reasonable.
|
||||
* [Geoff]
|
||||
*/
|
||||
#ifdef FLAT_INC
|
||||
#include "cswift.h"
|
||||
#else
|
||||
#include "vendor_defns/cswift.h"
|
||||
#endif
|
||||
|
||||
static int cswift_init(void);
|
||||
static int cswift_finish(void);
|
||||
|
||||
/* BIGNUM stuff */
|
||||
static int cswift_mod_exp(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx);
|
||||
static int cswift_mod_exp_crt(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *q, const BIGNUM *dmp1, const BIGNUM *dmq1,
|
||||
const BIGNUM *iqmp, BN_CTX *ctx);
|
||||
|
||||
/* RSA stuff */
|
||||
static int cswift_rsa_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa);
|
||||
/* This function is aliased to mod_exp (with the mont stuff dropped). */
|
||||
static int cswift_mod_exp_mont(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
|
||||
|
||||
/* DSA stuff */
|
||||
static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa);
|
||||
static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len,
|
||||
DSA_SIG *sig, DSA *dsa);
|
||||
|
||||
/* DH stuff */
|
||||
/* This function is alised to mod_exp (with the DH and mont dropped). */
|
||||
static int cswift_mod_exp_dh(DH *dh, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
|
||||
|
||||
|
||||
/* Our internal RSA_METHOD that we provide pointers to */
|
||||
static RSA_METHOD cswift_rsa =
|
||||
{
|
||||
"CryptoSwift RSA method",
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL,
|
||||
cswift_rsa_mod_exp,
|
||||
cswift_mod_exp_mont,
|
||||
NULL,
|
||||
NULL,
|
||||
0,
|
||||
NULL,
|
||||
NULL,
|
||||
NULL
|
||||
};
|
||||
|
||||
/* Our internal DSA_METHOD that we provide pointers to */
|
||||
static DSA_METHOD cswift_dsa =
|
||||
{
|
||||
"CryptoSwift DSA method",
|
||||
cswift_dsa_sign,
|
||||
NULL, /* dsa_sign_setup */
|
||||
cswift_dsa_verify,
|
||||
NULL, /* dsa_mod_exp */
|
||||
NULL, /* bn_mod_exp */
|
||||
NULL, /* init */
|
||||
NULL, /* finish */
|
||||
0, /* flags */
|
||||
NULL /* app_data */
|
||||
};
|
||||
|
||||
/* Our internal DH_METHOD that we provide pointers to */
|
||||
static DH_METHOD cswift_dh =
|
||||
{
|
||||
"CryptoSwift DH method",
|
||||
NULL,
|
||||
NULL,
|
||||
cswift_mod_exp_dh,
|
||||
NULL,
|
||||
NULL,
|
||||
0,
|
||||
NULL
|
||||
};
|
||||
|
||||
/* Our ENGINE structure. */
|
||||
static ENGINE engine_cswift =
|
||||
{
|
||||
"cswift",
|
||||
"CryptoSwift hardware engine support",
|
||||
&cswift_rsa,
|
||||
&cswift_dsa,
|
||||
&cswift_dh,
|
||||
NULL,
|
||||
cswift_mod_exp,
|
||||
cswift_mod_exp_crt,
|
||||
cswift_init,
|
||||
cswift_finish,
|
||||
NULL, /* no ctrl() */
|
||||
NULL, /* no load_privkey() */
|
||||
NULL, /* no load_pubkey() */
|
||||
0, /* no flags */
|
||||
0, 0, /* no references */
|
||||
NULL, NULL /* unlinked */
|
||||
};
|
||||
|
||||
/* As this is only ever called once, there's no need for locking
|
||||
* (indeed - the lock will already be held by our caller!!!) */
|
||||
ENGINE *ENGINE_cswift()
|
||||
{
|
||||
RSA_METHOD *meth1;
|
||||
DH_METHOD *meth2;
|
||||
|
||||
/* We know that the "PKCS1_SSLeay()" functions hook properly
|
||||
* to the cswift-specific mod_exp and mod_exp_crt so we use
|
||||
* those functions. NB: We don't use ENGINE_openssl() or
|
||||
* anything "more generic" because something like the RSAref
|
||||
* code may not hook properly, and if you own one of these
|
||||
* cards then you have the right to do RSA operations on it
|
||||
* anyway! */
|
||||
meth1 = RSA_PKCS1_SSLeay();
|
||||
cswift_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
|
||||
cswift_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
|
||||
cswift_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
|
||||
cswift_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
|
||||
|
||||
/* Much the same for Diffie-Hellman */
|
||||
meth2 = DH_OpenSSL();
|
||||
cswift_dh.generate_key = meth2->generate_key;
|
||||
cswift_dh.compute_key = meth2->compute_key;
|
||||
return &engine_cswift;
|
||||
}
|
||||
|
||||
/* This is a process-global DSO handle used for loading and unloading
|
||||
* the CryptoSwift library. NB: This is only set (or unset) during an
|
||||
* init() or finish() call (reference counts permitting) and they're
|
||||
* operating with global locks, so this should be thread-safe
|
||||
* implicitly. */
|
||||
static DSO *cswift_dso = NULL;
|
||||
|
||||
/* These are the function pointers that are (un)set when the library has
|
||||
* successfully (un)loaded. */
|
||||
t_swAcquireAccContext *p_CSwift_AcquireAccContext = NULL;
|
||||
t_swAttachKeyParam *p_CSwift_AttachKeyParam = NULL;
|
||||
t_swSimpleRequest *p_CSwift_SimpleRequest = NULL;
|
||||
t_swReleaseAccContext *p_CSwift_ReleaseAccContext = NULL;
|
||||
|
||||
/* Used in the DSO operations. */
|
||||
static const char *CSWIFT_LIBNAME = "swift";
|
||||
static const char *CSWIFT_F1 = "swAcquireAccContext";
|
||||
static const char *CSWIFT_F2 = "swAttachKeyParam";
|
||||
static const char *CSWIFT_F3 = "swSimpleRequest";
|
||||
static const char *CSWIFT_F4 = "swReleaseAccContext";
|
||||
|
||||
|
||||
/* CryptoSwift library functions and mechanics - these are used by the
|
||||
* higher-level functions further down. NB: As and where there's no
|
||||
* error checking, take a look lower down where these functions are
|
||||
* called, the checking and error handling is probably down there. */
|
||||
|
||||
/* utility function to obtain a context */
|
||||
static int get_context(SW_CONTEXT_HANDLE *hac)
|
||||
{
|
||||
SW_STATUS status;
|
||||
|
||||
status = p_CSwift_AcquireAccContext(hac);
|
||||
if(status != SW_OK)
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* similarly to release one. */
|
||||
static void release_context(SW_CONTEXT_HANDLE hac)
|
||||
{
|
||||
p_CSwift_ReleaseAccContext(hac);
|
||||
}
|
||||
|
||||
/* (de)initialisation functions. */
|
||||
static int cswift_init()
|
||||
{
|
||||
SW_CONTEXT_HANDLE hac;
|
||||
t_swAcquireAccContext *p1;
|
||||
t_swAttachKeyParam *p2;
|
||||
t_swSimpleRequest *p3;
|
||||
t_swReleaseAccContext *p4;
|
||||
|
||||
if(cswift_dso != NULL)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_INIT,ENGINE_R_ALREADY_LOADED);
|
||||
goto err;
|
||||
}
|
||||
/* Attempt to load libswift.so/swift.dll/whatever. */
|
||||
cswift_dso = DSO_load(NULL, CSWIFT_LIBNAME, NULL, 0);
|
||||
if(cswift_dso == NULL)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_INIT,ENGINE_R_DSO_FAILURE);
|
||||
goto err;
|
||||
}
|
||||
if(!(p1 = (t_swAcquireAccContext *)
|
||||
DSO_bind_func(cswift_dso, CSWIFT_F1)) ||
|
||||
!(p2 = (t_swAttachKeyParam *)
|
||||
DSO_bind_func(cswift_dso, CSWIFT_F2)) ||
|
||||
!(p3 = (t_swSimpleRequest *)
|
||||
DSO_bind_func(cswift_dso, CSWIFT_F3)) ||
|
||||
!(p4 = (t_swReleaseAccContext *)
|
||||
DSO_bind_func(cswift_dso, CSWIFT_F4)))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_INIT,ENGINE_R_DSO_FAILURE);
|
||||
goto err;
|
||||
}
|
||||
/* Copy the pointers */
|
||||
p_CSwift_AcquireAccContext = p1;
|
||||
p_CSwift_AttachKeyParam = p2;
|
||||
p_CSwift_SimpleRequest = p3;
|
||||
p_CSwift_ReleaseAccContext = p4;
|
||||
/* Try and get a context - if not, we may have a DSO but no
|
||||
* accelerator! */
|
||||
if(!get_context(&hac))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_INIT,ENGINE_R_UNIT_FAILURE);
|
||||
goto err;
|
||||
}
|
||||
release_context(hac);
|
||||
/* Everything's fine. */
|
||||
return 1;
|
||||
err:
|
||||
if(cswift_dso)
|
||||
DSO_free(cswift_dso);
|
||||
p_CSwift_AcquireAccContext = NULL;
|
||||
p_CSwift_AttachKeyParam = NULL;
|
||||
p_CSwift_SimpleRequest = NULL;
|
||||
p_CSwift_ReleaseAccContext = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int cswift_finish()
|
||||
{
|
||||
if(cswift_dso == NULL)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_FINISH,ENGINE_R_NOT_LOADED);
|
||||
return 0;
|
||||
}
|
||||
if(!DSO_free(cswift_dso))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_FINISH,ENGINE_R_DSO_FAILURE);
|
||||
return 0;
|
||||
}
|
||||
cswift_dso = NULL;
|
||||
p_CSwift_AcquireAccContext = NULL;
|
||||
p_CSwift_AttachKeyParam = NULL;
|
||||
p_CSwift_SimpleRequest = NULL;
|
||||
p_CSwift_ReleaseAccContext = NULL;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Un petit mod_exp */
|
||||
static int cswift_mod_exp(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx)
|
||||
{
|
||||
/* I need somewhere to store temporary serialised values for
|
||||
* use with the CryptoSwift API calls. A neat cheat - I'll use
|
||||
* BIGNUMs from the BN_CTX but access their arrays directly as
|
||||
* byte arrays <grin>. This way I don't have to clean anything
|
||||
* up. */
|
||||
BIGNUM *modulus;
|
||||
BIGNUM *exponent;
|
||||
BIGNUM *argument;
|
||||
BIGNUM *result;
|
||||
SW_STATUS sw_status;
|
||||
SW_LARGENUMBER arg, res;
|
||||
SW_PARAM sw_param;
|
||||
SW_CONTEXT_HANDLE hac;
|
||||
int to_return, acquired;
|
||||
|
||||
modulus = exponent = argument = result = NULL;
|
||||
to_return = 0; /* expect failure */
|
||||
acquired = 0;
|
||||
|
||||
if(!get_context(&hac))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,ENGINE_R_GET_HANDLE_FAILED);
|
||||
goto err;
|
||||
}
|
||||
acquired = 1;
|
||||
/* Prepare the params */
|
||||
modulus = BN_CTX_get(ctx);
|
||||
exponent = BN_CTX_get(ctx);
|
||||
argument = BN_CTX_get(ctx);
|
||||
result = BN_CTX_get(ctx);
|
||||
if(!modulus || !exponent || !argument || !result)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,ENGINE_R_BN_CTX_FULL);
|
||||
goto err;
|
||||
}
|
||||
if(!bn_wexpand(modulus, m->top) || !bn_wexpand(exponent, p->top) ||
|
||||
!bn_wexpand(argument, a->top) || !bn_wexpand(result, m->top))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,ENGINE_R_BN_EXPAND_FAIL);
|
||||
goto err;
|
||||
}
|
||||
sw_param.type = SW_ALG_EXP;
|
||||
sw_param.up.exp.modulus.nbytes = BN_bn2bin(m,
|
||||
(unsigned char *)modulus->d);
|
||||
sw_param.up.exp.modulus.value = (unsigned char *)modulus->d;
|
||||
sw_param.up.exp.exponent.nbytes = BN_bn2bin(p,
|
||||
(unsigned char *)exponent->d);
|
||||
sw_param.up.exp.exponent.value = (unsigned char *)exponent->d;
|
||||
/* Attach the key params */
|
||||
sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
|
||||
switch(sw_status)
|
||||
{
|
||||
case SW_OK:
|
||||
break;
|
||||
case SW_ERR_INPUT_SIZE:
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,
|
||||
ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
||||
goto err;
|
||||
default:
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
}
|
||||
goto err;
|
||||
}
|
||||
/* Prepare the argument and response */
|
||||
arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
|
||||
arg.value = (unsigned char *)argument->d;
|
||||
res.nbytes = BN_num_bytes(m);
|
||||
memset(result->d, 0, res.nbytes);
|
||||
res.value = (unsigned char *)result->d;
|
||||
/* Perform the operation */
|
||||
if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP, &arg, 1,
|
||||
&res, 1)) != SW_OK)
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
goto err;
|
||||
}
|
||||
/* Convert the response */
|
||||
BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
|
||||
to_return = 1;
|
||||
err:
|
||||
if(acquired)
|
||||
release_context(hac);
|
||||
if(modulus) ctx->tos--;
|
||||
if(exponent) ctx->tos--;
|
||||
if(argument) ctx->tos--;
|
||||
if(result) ctx->tos--;
|
||||
return to_return;
|
||||
}
|
||||
|
||||
/* Un petit mod_exp chinois */
|
||||
static int cswift_mod_exp_crt(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *q, const BIGNUM *dmp1,
|
||||
const BIGNUM *dmq1, const BIGNUM *iqmp, BN_CTX *ctx)
|
||||
{
|
||||
SW_STATUS sw_status;
|
||||
SW_LARGENUMBER arg, res;
|
||||
SW_PARAM sw_param;
|
||||
SW_CONTEXT_HANDLE hac;
|
||||
BIGNUM *rsa_p = NULL;
|
||||
BIGNUM *rsa_q = NULL;
|
||||
BIGNUM *rsa_dmp1 = NULL;
|
||||
BIGNUM *rsa_dmq1 = NULL;
|
||||
BIGNUM *rsa_iqmp = NULL;
|
||||
BIGNUM *argument = NULL;
|
||||
BIGNUM *result = NULL;
|
||||
int to_return = 0; /* expect failure */
|
||||
int acquired = 0;
|
||||
|
||||
if(!get_context(&hac))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,ENGINE_R_GET_HANDLE_FAILED);
|
||||
goto err;
|
||||
}
|
||||
acquired = 1;
|
||||
/* Prepare the params */
|
||||
rsa_p = BN_CTX_get(ctx);
|
||||
rsa_q = BN_CTX_get(ctx);
|
||||
rsa_dmp1 = BN_CTX_get(ctx);
|
||||
rsa_dmq1 = BN_CTX_get(ctx);
|
||||
rsa_iqmp = BN_CTX_get(ctx);
|
||||
argument = BN_CTX_get(ctx);
|
||||
result = BN_CTX_get(ctx);
|
||||
if(!rsa_p || !rsa_q || !rsa_dmp1 || !rsa_dmq1 || !rsa_iqmp ||
|
||||
!argument || !result)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,ENGINE_R_BN_CTX_FULL);
|
||||
goto err;
|
||||
}
|
||||
if(!bn_wexpand(rsa_p, p->top) || !bn_wexpand(rsa_q, q->top) ||
|
||||
!bn_wexpand(rsa_dmp1, dmp1->top) ||
|
||||
!bn_wexpand(rsa_dmq1, dmq1->top) ||
|
||||
!bn_wexpand(rsa_iqmp, iqmp->top) ||
|
||||
!bn_wexpand(argument, a->top) ||
|
||||
!bn_wexpand(result, p->top + q->top))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,ENGINE_R_BN_EXPAND_FAIL);
|
||||
goto err;
|
||||
}
|
||||
sw_param.type = SW_ALG_CRT;
|
||||
sw_param.up.crt.p.nbytes = BN_bn2bin(p, (unsigned char *)rsa_p->d);
|
||||
sw_param.up.crt.p.value = (unsigned char *)rsa_p->d;
|
||||
sw_param.up.crt.q.nbytes = BN_bn2bin(q, (unsigned char *)rsa_q->d);
|
||||
sw_param.up.crt.q.value = (unsigned char *)rsa_q->d;
|
||||
sw_param.up.crt.dmp1.nbytes = BN_bn2bin(dmp1,
|
||||
(unsigned char *)rsa_dmp1->d);
|
||||
sw_param.up.crt.dmp1.value = (unsigned char *)rsa_dmp1->d;
|
||||
sw_param.up.crt.dmq1.nbytes = BN_bn2bin(dmq1,
|
||||
(unsigned char *)rsa_dmq1->d);
|
||||
sw_param.up.crt.dmq1.value = (unsigned char *)rsa_dmq1->d;
|
||||
sw_param.up.crt.iqmp.nbytes = BN_bn2bin(iqmp,
|
||||
(unsigned char *)rsa_iqmp->d);
|
||||
sw_param.up.crt.iqmp.value = (unsigned char *)rsa_iqmp->d;
|
||||
/* Attach the key params */
|
||||
sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
|
||||
switch(sw_status)
|
||||
{
|
||||
case SW_OK:
|
||||
break;
|
||||
case SW_ERR_INPUT_SIZE:
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,
|
||||
ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
||||
goto err;
|
||||
default:
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
}
|
||||
goto err;
|
||||
}
|
||||
/* Prepare the argument and response */
|
||||
arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
|
||||
arg.value = (unsigned char *)argument->d;
|
||||
res.nbytes = 2 * BN_num_bytes(p);
|
||||
memset(result->d, 0, res.nbytes);
|
||||
res.value = (unsigned char *)result->d;
|
||||
/* Perform the operation */
|
||||
if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP_CRT, &arg, 1,
|
||||
&res, 1)) != SW_OK)
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_MOD_EXP_CRT,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
goto err;
|
||||
}
|
||||
/* Convert the response */
|
||||
BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
|
||||
to_return = 1;
|
||||
err:
|
||||
if(acquired)
|
||||
release_context(hac);
|
||||
if(rsa_p) ctx->tos--;
|
||||
if(rsa_q) ctx->tos--;
|
||||
if(rsa_dmp1) ctx->tos--;
|
||||
if(rsa_dmq1) ctx->tos--;
|
||||
if(rsa_iqmp) ctx->tos--;
|
||||
if(argument) ctx->tos--;
|
||||
if(result) ctx->tos--;
|
||||
return to_return;
|
||||
}
|
||||
|
||||
static int cswift_rsa_mod_exp(BIGNUM *r0, BIGNUM *I, RSA *rsa)
|
||||
{
|
||||
BN_CTX *ctx;
|
||||
int to_return = 0;
|
||||
|
||||
if((ctx = BN_CTX_new()) == NULL)
|
||||
goto err;
|
||||
if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_RSA_MOD_EXP,ENGINE_R_MISSING_KEY_COMPONENTS);
|
||||
goto err;
|
||||
}
|
||||
to_return = cswift_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
|
||||
rsa->dmq1, rsa->iqmp, ctx);
|
||||
err:
|
||||
if(ctx)
|
||||
BN_CTX_free(ctx);
|
||||
return to_return;
|
||||
}
|
||||
|
||||
/* This function is aliased to mod_exp (with the mont stuff dropped). */
|
||||
static int cswift_mod_exp_mont(BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
|
||||
{
|
||||
return cswift_mod_exp(r, a, p, m, ctx);
|
||||
}
|
||||
|
||||
static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa)
|
||||
{
|
||||
SW_CONTEXT_HANDLE hac;
|
||||
SW_PARAM sw_param;
|
||||
SW_STATUS sw_status;
|
||||
SW_LARGENUMBER arg, res;
|
||||
unsigned char *ptr;
|
||||
BN_CTX *ctx;
|
||||
BIGNUM *dsa_p = NULL;
|
||||
BIGNUM *dsa_q = NULL;
|
||||
BIGNUM *dsa_g = NULL;
|
||||
BIGNUM *dsa_key = NULL;
|
||||
BIGNUM *result = NULL;
|
||||
DSA_SIG *to_return = NULL;
|
||||
int acquired = 0;
|
||||
|
||||
if((ctx = BN_CTX_new()) == NULL)
|
||||
goto err;
|
||||
if(!get_context(&hac))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,ENGINE_R_GET_HANDLE_FAILED);
|
||||
goto err;
|
||||
}
|
||||
acquired = 1;
|
||||
/* Prepare the params */
|
||||
dsa_p = BN_CTX_get(ctx);
|
||||
dsa_q = BN_CTX_get(ctx);
|
||||
dsa_g = BN_CTX_get(ctx);
|
||||
dsa_key = BN_CTX_get(ctx);
|
||||
result = BN_CTX_get(ctx);
|
||||
if(!dsa_p || !dsa_q || !dsa_g || !dsa_key || !result)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,ENGINE_R_BN_CTX_FULL);
|
||||
goto err;
|
||||
}
|
||||
if(!bn_wexpand(dsa_p, dsa->p->top) ||
|
||||
!bn_wexpand(dsa_q, dsa->q->top) ||
|
||||
!bn_wexpand(dsa_g, dsa->g->top) ||
|
||||
!bn_wexpand(dsa_key, dsa->priv_key->top) ||
|
||||
!bn_wexpand(result, dsa->p->top))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,ENGINE_R_BN_EXPAND_FAIL);
|
||||
goto err;
|
||||
}
|
||||
sw_param.type = SW_ALG_DSA;
|
||||
sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p,
|
||||
(unsigned char *)dsa_p->d);
|
||||
sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
|
||||
sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q,
|
||||
(unsigned char *)dsa_q->d);
|
||||
sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
|
||||
sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g,
|
||||
(unsigned char *)dsa_g->d);
|
||||
sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
|
||||
sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->priv_key,
|
||||
(unsigned char *)dsa_key->d);
|
||||
sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
|
||||
/* Attach the key params */
|
||||
sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
|
||||
switch(sw_status)
|
||||
{
|
||||
case SW_OK:
|
||||
break;
|
||||
case SW_ERR_INPUT_SIZE:
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,
|
||||
ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
||||
goto err;
|
||||
default:
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
}
|
||||
goto err;
|
||||
}
|
||||
/* Prepare the argument and response */
|
||||
arg.nbytes = dlen;
|
||||
arg.value = (unsigned char *)dgst;
|
||||
res.nbytes = BN_num_bytes(dsa->p);
|
||||
memset(result->d, 0, res.nbytes);
|
||||
res.value = (unsigned char *)result->d;
|
||||
/* Perform the operation */
|
||||
sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_SIGN, &arg, 1,
|
||||
&res, 1);
|
||||
if(sw_status != SW_OK)
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_SIGN,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
goto err;
|
||||
}
|
||||
/* Convert the response */
|
||||
ptr = (unsigned char *)result->d;
|
||||
if((to_return = DSA_SIG_new()) == NULL)
|
||||
goto err;
|
||||
to_return->r = BN_bin2bn((unsigned char *)result->d, 20, NULL);
|
||||
to_return->s = BN_bin2bn((unsigned char *)result->d + 20, 20, NULL);
|
||||
|
||||
err:
|
||||
if(acquired)
|
||||
release_context(hac);
|
||||
if(dsa_p) ctx->tos--;
|
||||
if(dsa_q) ctx->tos--;
|
||||
if(dsa_g) ctx->tos--;
|
||||
if(dsa_key) ctx->tos--;
|
||||
if(result) ctx->tos--;
|
||||
if(ctx)
|
||||
BN_CTX_free(ctx);
|
||||
return to_return;
|
||||
}
|
||||
|
||||
static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len,
|
||||
DSA_SIG *sig, DSA *dsa)
|
||||
{
|
||||
SW_CONTEXT_HANDLE hac;
|
||||
SW_PARAM sw_param;
|
||||
SW_STATUS sw_status;
|
||||
SW_LARGENUMBER arg[2], res;
|
||||
unsigned long sig_result;
|
||||
BN_CTX *ctx;
|
||||
BIGNUM *dsa_p = NULL;
|
||||
BIGNUM *dsa_q = NULL;
|
||||
BIGNUM *dsa_g = NULL;
|
||||
BIGNUM *dsa_key = NULL;
|
||||
BIGNUM *argument = NULL;
|
||||
int to_return = -1;
|
||||
int acquired = 0;
|
||||
|
||||
if((ctx = BN_CTX_new()) == NULL)
|
||||
goto err;
|
||||
if(!get_context(&hac))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,ENGINE_R_GET_HANDLE_FAILED);
|
||||
goto err;
|
||||
}
|
||||
acquired = 1;
|
||||
/* Prepare the params */
|
||||
dsa_p = BN_CTX_get(ctx);
|
||||
dsa_q = BN_CTX_get(ctx);
|
||||
dsa_g = BN_CTX_get(ctx);
|
||||
dsa_key = BN_CTX_get(ctx);
|
||||
argument = BN_CTX_get(ctx);
|
||||
if(!dsa_p || !dsa_q || !dsa_g || !dsa_key || !argument)
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,ENGINE_R_BN_CTX_FULL);
|
||||
goto err;
|
||||
}
|
||||
if(!bn_wexpand(dsa_p, dsa->p->top) ||
|
||||
!bn_wexpand(dsa_q, dsa->q->top) ||
|
||||
!bn_wexpand(dsa_g, dsa->g->top) ||
|
||||
!bn_wexpand(dsa_key, dsa->pub_key->top) ||
|
||||
!bn_wexpand(argument, 40))
|
||||
{
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,ENGINE_R_BN_EXPAND_FAIL);
|
||||
goto err;
|
||||
}
|
||||
sw_param.type = SW_ALG_DSA;
|
||||
sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p,
|
||||
(unsigned char *)dsa_p->d);
|
||||
sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
|
||||
sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q,
|
||||
(unsigned char *)dsa_q->d);
|
||||
sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
|
||||
sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g,
|
||||
(unsigned char *)dsa_g->d);
|
||||
sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
|
||||
sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->pub_key,
|
||||
(unsigned char *)dsa_key->d);
|
||||
sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
|
||||
/* Attach the key params */
|
||||
sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
|
||||
switch(sw_status)
|
||||
{
|
||||
case SW_OK:
|
||||
break;
|
||||
case SW_ERR_INPUT_SIZE:
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,
|
||||
ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
||||
goto err;
|
||||
default:
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
}
|
||||
goto err;
|
||||
}
|
||||
/* Prepare the argument and response */
|
||||
arg[0].nbytes = dgst_len;
|
||||
arg[0].value = (unsigned char *)dgst;
|
||||
arg[1].nbytes = 40;
|
||||
arg[1].value = (unsigned char *)argument->d;
|
||||
memset(arg[1].value, 0, 40);
|
||||
BN_bn2bin(sig->r, arg[1].value + 20 - BN_num_bytes(sig->r));
|
||||
BN_bn2bin(sig->s, arg[1].value + 40 - BN_num_bytes(sig->s));
|
||||
res.nbytes = 4; /* unsigned long */
|
||||
res.value = (unsigned char *)(&sig_result);
|
||||
/* Perform the operation */
|
||||
sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_VERIFY, arg, 2,
|
||||
&res, 1);
|
||||
if(sw_status != SW_OK)
|
||||
{
|
||||
char tmpbuf[20];
|
||||
ENGINEerr(ENGINE_F_CSWIFT_DSA_VERIFY,ENGINE_R_REQUEST_FAILED);
|
||||
sprintf(tmpbuf, "%ld", sw_status);
|
||||
ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
|
||||
goto err;
|
||||
}
|
||||
/* Convert the response */
|
||||
to_return = ((sig_result == 0) ? 0 : 1);
|
||||
|
||||
err:
|
||||
if(acquired)
|
||||
release_context(hac);
|
||||
if(dsa_p) ctx->tos--;
|
||||
if(dsa_q) ctx->tos--;
|
||||
if(dsa_g) ctx->tos--;
|
||||
if(dsa_key) ctx->tos--;
|
||||
if(argument) ctx->tos--;
|
||||
if(ctx)
|
||||
BN_CTX_free(ctx);
|
||||
return to_return;
|
||||
}
|
||||
|
||||
/* This function is aliased to mod_exp (with the dh and mont dropped). */
|
||||
static int cswift_mod_exp_dh(DH *dh, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
|
||||
const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
|
||||
{
|
||||
return cswift_mod_exp(r, a, p, m, ctx);
|
||||
}
|
||||
|
||||
#endif /* !NO_HW_CSWIFT */
|
||||
#endif /* !NO_HW */
|
||||
Reference in New Issue
Block a user