+++ /dev/null
-/* crypto/engine/hw_ibmca.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).
- *
- */
-
-/* (C) COPYRIGHT International Business Machines Corp. 2001 */
-
-#include <stdio.h>
-#include <openssl/crypto.h>
-#include <openssl/dso.h>
-#include <openssl/engine.h>
-
-#ifndef OPENSSL_NO_HW
-#ifndef OPENSSL_NO_HW_IBMCA
-
-#ifdef FLAT_INC
-#include "ica_openssl_api.h"
-#else
-#include "vendor_defns/ica_openssl_api.h"
-#endif
-
-#define IBMCA_LIB_NAME "ibmca engine"
-#include "hw_ibmca_err.c"
-
-static int ibmca_destroy(ENGINE *e);
-static int ibmca_init(ENGINE *e);
-static int ibmca_finish(ENGINE *e);
-static int ibmca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)());
-
-static const char *IBMCA_F1 = "icaOpenAdapter";
-static const char *IBMCA_F2 = "icaCloseAdapter";
-static const char *IBMCA_F3 = "icaRsaModExpo";
-static const char *IBMCA_F4 = "icaRandomNumberGenerate";
-static const char *IBMCA_F5 = "icaRsaCrt";
-
-ICA_ADAPTER_HANDLE handle=0;
-
-/* BIGNUM stuff */
-static int ibmca_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx);
-
-static int ibmca_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *q, const BIGNUM *dmp1, const BIGNUM *dmq1,
- const BIGNUM *iqmp, BN_CTX *ctx);
-
-#ifndef OPENSSL_NO_RSA
-/* RSA stuff */
-static int ibmca_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
-#endif
-
-/* This function is aliased to mod_exp (with the mont stuff dropped). */
-static int ibmca_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
-
-#ifndef OPENSSL_NO_DSA
-/* DSA stuff */
-static int ibmca_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
- BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
- BN_CTX *ctx, BN_MONT_CTX *in_mont);
-static int ibmca_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx);
-#endif
-
-#ifndef OPENSSL_NO_DH
-/* DH stuff */
-/* This function is alised to mod_exp (with the DH and mont dropped). */
-static int ibmca_mod_exp_dh(const DH *dh, BIGNUM *r,
- const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
-#endif
-
-/* RAND stuff */
-static int ibmca_rand_bytes(unsigned char *buf, int num);
-static int ibmca_rand_status(void);
-
-
-/* WJH - check for more commands, like in nuron */
-
-/* The definitions for control commands specific to this engine */
-#define IBMCA_CMD_SO_PATH ENGINE_CMD_BASE
-static const ENGINE_CMD_DEFN ibmca_cmd_defns[] = {
- {IBMCA_CMD_SO_PATH,
- "SO_PATH",
- "Specifies the path to the 'atasi' shared library",
- ENGINE_CMD_FLAG_STRING},
- {0, NULL, NULL, 0}
- };
-
-#ifndef OPENSSL_NO_RSA
-/* Our internal RSA_METHOD that we provide pointers to */
-static RSA_METHOD ibmca_rsa =
- {
- "Ibmca RSA method",
- NULL,
- NULL,
- NULL,
- NULL,
- ibmca_rsa_mod_exp,
- ibmca_mod_exp_mont,
- NULL,
- NULL,
- 0,
- NULL,
- NULL,
- NULL
- };
-#endif
-
-#ifndef OPENSSL_NO_DSA
-/* Our internal DSA_METHOD that we provide pointers to */
-static DSA_METHOD ibmca_dsa =
- {
- "Ibmca DSA method",
- NULL, /* dsa_do_sign */
- NULL, /* dsa_sign_setup */
- NULL, /* dsa_do_verify */
- ibmca_dsa_mod_exp, /* dsa_mod_exp */
- ibmca_mod_exp_dsa, /* bn_mod_exp */
- NULL, /* init */
- NULL, /* finish */
- 0, /* flags */
- NULL /* app_data */
- };
-#endif
-
-#ifndef OPENSSL_NO_DH
-/* Our internal DH_METHOD that we provide pointers to */
-static DH_METHOD ibmca_dh =
- {
- "Ibmca DH method",
- NULL,
- NULL,
- ibmca_mod_exp_dh,
- NULL,
- NULL,
- 0,
- NULL
- };
-#endif
-
-static RAND_METHOD ibmca_rand =
- {
- /* "IBMCA RAND method", */
- NULL,
- ibmca_rand_bytes,
- NULL,
- NULL,
- ibmca_rand_bytes,
- ibmca_rand_status,
- };
-
-/* Constants used when creating the ENGINE */
-static const char *engine_ibmca_id = "ibmca";
-static const char *engine_ibmca_name = "Ibmca hardware engine support";
-
-/* This internal function is used by ENGINE_ibmca() and possibly by the
- * "dynamic" ENGINE support too */
-static int bind_helper(ENGINE *e)
- {
-#ifndef OPENSSL_NO_RSA
- const RSA_METHOD *meth1;
-#endif
-#ifndef OPENSSL_NO_DSA
- const DSA_METHOD *meth2;
-#endif
-#ifndef OPENSSL_NO_DH
- const DH_METHOD *meth3;
-#endif
- if(!ENGINE_set_id(e, engine_ibmca_id) ||
- !ENGINE_set_name(e, engine_ibmca_name) ||
-#ifndef OPENSSL_NO_RSA
- !ENGINE_set_RSA(e, &ibmca_rsa) ||
-#endif
-#ifndef OPENSSL_NO_DSA
- !ENGINE_set_DSA(e, &ibmca_dsa) ||
-#endif
-#ifndef OPENSSL_NO_DH
- !ENGINE_set_DH(e, &ibmca_dh) ||
-#endif
- !ENGINE_set_RAND(e, &ibmca_rand) ||
- !ENGINE_set_destroy_function(e, ibmca_destroy) ||
- !ENGINE_set_init_function(e, ibmca_init) ||
- !ENGINE_set_finish_function(e, ibmca_finish) ||
- !ENGINE_set_ctrl_function(e, ibmca_ctrl) ||
- !ENGINE_set_cmd_defns(e, ibmca_cmd_defns))
- return 0;
-
-#ifndef OPENSSL_NO_RSA
- /* We know that the "PKCS1_SSLeay()" functions hook properly
- * to the ibmca-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();
- ibmca_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
- ibmca_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
- ibmca_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
- ibmca_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
-#endif
-
-#ifndef OPENSSL_NO_DSA
- /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
- * bits. */
- meth2 = DSA_OpenSSL();
- ibmca_dsa.dsa_do_sign = meth2->dsa_do_sign;
- ibmca_dsa.dsa_sign_setup = meth2->dsa_sign_setup;
- ibmca_dsa.dsa_do_verify = meth2->dsa_do_verify;
-#endif
-
-#ifndef OPENSSL_NO_DH
- /* Much the same for Diffie-Hellman */
- meth3 = DH_OpenSSL();
- ibmca_dh.generate_key = meth3->generate_key;
- ibmca_dh.compute_key = meth3->compute_key;
-#endif
-
- /* Ensure the ibmca error handling is set up */
- ERR_load_IBMCA_strings();
- return 1;
- }
-
-static ENGINE *engine_ibmca(void)
- {
- ENGINE *ret = ENGINE_new();
- if(!ret)
- return NULL;
- if(!bind_helper(ret))
- {
- ENGINE_free(ret);
- return NULL;
- }
- return ret;
- }
-
-#ifdef ENGINE_DYNAMIC_SUPPORT
-static
-#endif
-void ENGINE_load_ibmca(void)
- {
- /* Copied from eng_[openssl|dyn].c */
- ENGINE *toadd = engine_ibmca();
- if(!toadd) return;
- ENGINE_add(toadd);
- ENGINE_free(toadd);
- ERR_clear_error();
- }
-
-/* Destructor (complements the "ENGINE_ibmca()" constructor) */
-static int ibmca_destroy(ENGINE *e)
- {
- /* Unload the ibmca error strings so any error state including our
- * functs or reasons won't lead to a segfault (they simply get displayed
- * without corresponding string data because none will be found). */
- ERR_unload_IBMCA_strings();
- return 1;
- }
-
-
-/* This is a process-global DSO handle used for loading and unloading
- * the Ibmca 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 *ibmca_dso = NULL;
-
-/* These are the function pointers that are (un)set when the library has
- * successfully (un)loaded. */
-
-static unsigned int (ICA_CALL *p_icaOpenAdapter)();
-static unsigned int (ICA_CALL *p_icaCloseAdapter)();
-static unsigned int (ICA_CALL *p_icaRsaModExpo)();
-static unsigned int (ICA_CALL *p_icaRandomNumberGenerate)();
-static unsigned int (ICA_CALL *p_icaRsaCrt)();
-
-/* utility function to obtain a context */
-static int get_context(ICA_ADAPTER_HANDLE *p_handle)
- {
- unsigned int status=0;
-
- status = p_icaOpenAdapter(0, p_handle);
- if(status != 0)
- return 0;
- return 1;
- }
-
-/* similarly to release one. */
-static void release_context(ICA_ADAPTER_HANDLE handle)
- {
- p_icaCloseAdapter(handle);
- }
-
-/* (de)initialisation functions. */
-static int ibmca_init(ENGINE *e)
- {
-
- void (*p1)();
- void (*p2)();
- void (*p3)();
- void (*p4)();
- void (*p5)();
-
- if(ibmca_dso != NULL)
- {
- IBMCAerr(IBMCA_F_IBMCA_INIT,IBMCA_R_ALREADY_LOADED);
- goto err;
- }
- /* Attempt to load libatasi.so/atasi.dll/whatever. Needs to be
- * changed unfortunately because the Ibmca drivers don't have
- * standard library names that can be platform-translated well. */
- /* TODO: Work out how to actually map to the names the Ibmca
- * drivers really use - for now a symbollic link needs to be
- * created on the host system from libatasi.so to atasi.so on
- * unix variants. */
-
- /* WJH XXX check name translation */
-
- ibmca_dso = DSO_load(NULL, IBMCA_LIBNAME, NULL,
- /* DSO_FLAG_NAME_TRANSLATION */ 0);
- if(ibmca_dso == NULL)
- {
- IBMCAerr(IBMCA_F_IBMCA_INIT,IBMCA_R_DSO_FAILURE);
- goto err;
- }
-
- if(!(p1 = DSO_bind_func(
- ibmca_dso, IBMCA_F1)) ||
- !(p2 = DSO_bind_func(
- ibmca_dso, IBMCA_F2)) ||
- !(p3 = DSO_bind_func(
- ibmca_dso, IBMCA_F3)) ||
- !(p4 = DSO_bind_func(
- ibmca_dso, IBMCA_F4)) ||
- !(p5 = DSO_bind_func(
- ibmca_dso, IBMCA_F5)))
- {
- IBMCAerr(IBMCA_F_IBMCA_INIT,IBMCA_R_DSO_FAILURE);
- goto err;
- }
-
- /* Copy the pointers */
-
- p_icaOpenAdapter = (unsigned int (ICA_CALL *)())p1;
- p_icaCloseAdapter = (unsigned int (ICA_CALL *)())p2;
- p_icaRsaModExpo = (unsigned int (ICA_CALL *)())p3;
- p_icaRandomNumberGenerate = (unsigned int (ICA_CALL *)())p4;
- p_icaRsaCrt = (unsigned int (ICA_CALL *)())p5;
-
- if(!get_context(&handle))
- {
- IBMCAerr(IBMCA_F_IBMCA_INIT,IBMCA_R_UNIT_FAILURE);
- goto err;
- }
-
- return 1;
- err:
- if(ibmca_dso)
- DSO_free(ibmca_dso);
-
- p_icaOpenAdapter = NULL;
- p_icaCloseAdapter = NULL;
- p_icaRsaModExpo = NULL;
- p_icaRandomNumberGenerate = NULL;
-
- return 0;
- }
-
-static int ibmca_finish(ENGINE *e)
- {
- if(ibmca_dso == NULL)
- {
- IBMCAerr(IBMCA_F_IBMCA_FINISH,IBMCA_R_NOT_LOADED);
- return 0;
- }
- release_context(handle);
- if(!DSO_free(ibmca_dso))
- {
- IBMCAerr(IBMCA_F_IBMCA_FINISH,IBMCA_R_DSO_FAILURE);
- return 0;
- }
- ibmca_dso = NULL;
-
- return 1;
- }
-
-static int ibmca_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)())
- {
- int initialised = ((ibmca_dso == NULL) ? 0 : 1);
- switch(cmd)
- {
- case IBMCA_CMD_SO_PATH:
- if(p == NULL)
- {
- IBMCAerr(IBMCA_F_IBMCA_CTRL,ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- if(initialised)
- {
- IBMCAerr(IBMCA_F_IBMCA_CTRL,IBMCA_R_ALREADY_LOADED);
- return 0;
- }
- IBMCA_LIBNAME = (const char *)p;
- return 1;
- default:
- break;
- }
- IBMCAerr(IBMCA_F_IBMCA_CTRL,IBMCA_R_CTRL_COMMAND_NOT_IMPLEMENTED);
- return 0;
- }
-
-
-static int ibmca_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx)
- {
- /* I need somewhere to store temporary serialised values for
- * use with the Ibmca 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 *argument=NULL;
- BIGNUM *result=NULL;
- BIGNUM *key=NULL;
- int to_return;
- int inLen, outLen, tmpLen;
-
-
- ICA_KEY_RSA_MODEXPO *publKey=NULL;
- unsigned int rc;
-
- to_return = 0; /* expect failure */
-
- if(!ibmca_dso)
- {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_NOT_LOADED);
- goto err;
- }
- /* Prepare the params */
- BN_CTX_start(ctx);
- argument = BN_CTX_get(ctx);
- result = BN_CTX_get(ctx);
- key = BN_CTX_get(ctx);
-
- if( !argument || !result || !key)
- {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_BN_CTX_FULL);
- goto err;
- }
-
-
- if(!bn_wexpand(argument, m->top) || !bn_wexpand(result, m->top) ||
- !bn_wexpand(key, sizeof(*publKey)/BN_BYTES))
-
- {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_BN_EXPAND_FAIL);
- goto err;
- }
-
- publKey = (ICA_KEY_RSA_MODEXPO *)key->d;
-
- if (publKey == NULL)
- {
- goto err;
- }
- memset(publKey, 0, sizeof(ICA_KEY_RSA_MODEXPO));
-
- publKey->keyType = CORRECT_ENDIANNESS(ME_KEY_TYPE);
- publKey->keyLength = CORRECT_ENDIANNESS(sizeof(ICA_KEY_RSA_MODEXPO));
- publKey->expOffset = (char *) publKey->keyRecord - (char *) publKey;
-
- /* A quirk of the card: the exponent length has to be the same
- as the modulus (key) length */
-
- outLen = BN_num_bytes(m);
-
-/* check for modulus length SAB*/
- if (outLen > 256 ) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_MEXP_LENGTH_TO_LARGE);
- goto err;
- }
-/* check for modulus length SAB*/
-
-
- publKey->expLength = publKey->nLength = outLen;
-/* SAB Check for underflow condition
- the size of the exponent is less than the size of the parameter
- then we have a big problem and will underflow the keyRecord
- buffer. Bad stuff could happen then
-*/
-if (outLen < BN_num_bytes(p)){
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_UNDERFLOW_KEYRECORD);
- goto err;
-}
-/* SAB End check for underflow */
-
-
- BN_bn2bin(p, &publKey->keyRecord[publKey->expLength -
- BN_num_bytes(p)]);
- BN_bn2bin(m, &publKey->keyRecord[publKey->expLength]);
-
-
-
- publKey->modulusBitLength = CORRECT_ENDIANNESS(publKey->nLength * 8);
- publKey->nOffset = CORRECT_ENDIANNESS(publKey->expOffset +
- publKey->expLength);
-
- publKey->expOffset = CORRECT_ENDIANNESS((char *) publKey->keyRecord -
- (char *) publKey);
-
- tmpLen = outLen;
- publKey->expLength = publKey->nLength = CORRECT_ENDIANNESS(tmpLen);
-
- /* Prepare the argument */
-
- memset(argument->d, 0, outLen);
- BN_bn2bin(a, (unsigned char *)argument->d + outLen -
- BN_num_bytes(a));
-
- inLen = outLen;
-
- /* Perform the operation */
-
- if( (rc = p_icaRsaModExpo(handle, inLen,(unsigned char *)argument->d,
- publKey, &outLen, (unsigned char *)result->d))
- !=0 )
-
- {
- printf("rc = %d\n", rc);
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP,IBMCA_R_REQUEST_FAILED);
- goto err;
- }
-
-
- /* Convert the response */
- BN_bin2bn((unsigned char *)result->d, outLen, r);
- to_return = 1;
- err:
- BN_CTX_end(ctx);
- return to_return;
- }
-
-#ifndef OPENSSL_NO_RSA
-static int ibmca_rsa_mod_exp(BIGNUM *r0, const 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)
- {
- if(!rsa->d || !rsa->n)
- {
- IBMCAerr(IBMCA_F_IBMCA_RSA_MOD_EXP,
- IBMCA_R_MISSING_KEY_COMPONENTS);
- goto err;
- }
- to_return = ibmca_mod_exp(r0, I, rsa->d, rsa->n, ctx);
- }
- else
- {
- to_return = ibmca_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;
- }
-#endif
-
-/* Ein kleines chinesisches "Restessen" */
-static int ibmca_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *q, const BIGNUM *dmp1,
- const BIGNUM *dmq1, const BIGNUM *iqmp, BN_CTX *ctx)
- {
-
- BIGNUM *argument = NULL;
- BIGNUM *result = NULL;
- BIGNUM *key = NULL;
-
- int to_return = 0; /* expect failure */
-
- char *pkey=NULL;
- ICA_KEY_RSA_CRT *privKey=NULL;
- int inLen, outLen;
-
- int rc;
- unsigned int offset, pSize, qSize;
-/* SAB New variables */
- unsigned int keyRecordSize;
- unsigned int pbytes = BN_num_bytes(p);
- unsigned int qbytes = BN_num_bytes(q);
- unsigned int dmp1bytes = BN_num_bytes(dmp1);
- unsigned int dmq1bytes = BN_num_bytes(dmq1);
- unsigned int iqmpbytes = BN_num_bytes(iqmp);
-
- /* Prepare the params */
-
- BN_CTX_start(ctx);
- argument = BN_CTX_get(ctx);
- result = BN_CTX_get(ctx);
- key = BN_CTX_get(ctx);
-
- if(!argument || !result || !key)
- {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_BN_CTX_FULL);
- goto err;
- }
-
- if(!bn_wexpand(argument, p->top + q->top) ||
- !bn_wexpand(result, p->top + q->top) ||
- !bn_wexpand(key, sizeof(*privKey)/BN_BYTES ))
- {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_BN_EXPAND_FAIL);
- goto err;
- }
-
-
- privKey = (ICA_KEY_RSA_CRT *)key->d;
-/* SAB Add check for total size in bytes of the parms does not exceed
- the buffer space we have
- do this first
-*/
- keyRecordSize = pbytes+qbytes+dmp1bytes+dmq1bytes+iqmpbytes;
- if ( keyRecordSize > sizeof(privKey->keyRecord )) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_OPERANDS_TO_LARGE);
- goto err;
- }
-
- if ( (qbytes + dmq1bytes) > 256 ){
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_OPERANDS_TO_LARGE);
- goto err;
- }
-
- if ( pbytes + dmp1bytes > 256 ) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_OPERANDS_TO_LARGE);
- goto err;
- }
-
-/* end SAB additions */
-
- memset(privKey, 0, sizeof(ICA_KEY_RSA_CRT));
- privKey->keyType = CORRECT_ENDIANNESS(CRT_KEY_TYPE);
- privKey->keyLength = CORRECT_ENDIANNESS(sizeof(ICA_KEY_RSA_CRT));
- privKey->modulusBitLength =
- CORRECT_ENDIANNESS(BN_num_bytes(q) * 2 * 8);
-
- /*
- * p,dp & qInv are 1 QWORD Larger
- */
- privKey->pLength = CORRECT_ENDIANNESS(BN_num_bytes(p)+8);
- privKey->qLength = CORRECT_ENDIANNESS(BN_num_bytes(q));
- privKey->dpLength = CORRECT_ENDIANNESS(BN_num_bytes(dmp1)+8);
- privKey->dqLength = CORRECT_ENDIANNESS(BN_num_bytes(dmq1));
- privKey->qInvLength = CORRECT_ENDIANNESS(BN_num_bytes(iqmp)+8);
-
- offset = (char *) privKey->keyRecord
- - (char *) privKey;
-
- qSize = BN_num_bytes(q);
- pSize = qSize + 8; /* 1 QWORD larger */
-
-
-/* SAB probably aittle redundant, but we'll verify that each of the
- components which make up a key record sent ot the card does not exceed
- the space that is allocated for it. this handles the case where even if
- the total length does not exceed keyrecord zied, if the operands are funny sized
-they could cause potential side affects on either the card or the result */
-
- if ( (pbytes > pSize) || (dmp1bytes > pSize) ||
- (iqmpbytes > pSize) || ( qbytes >qSize) ||
- (dmq1bytes > qSize) ) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT, IBMCA_R_OPERANDS_TO_LARGE);
- goto err;
-
- }
-
-
- privKey->dpOffset = CORRECT_ENDIANNESS(offset);
-
- offset += pSize;
- privKey->dqOffset = CORRECT_ENDIANNESS(offset);
-
- offset += qSize;
- privKey->pOffset = CORRECT_ENDIANNESS(offset);
-
- offset += pSize;
- privKey->qOffset = CORRECT_ENDIANNESS(offset);
-
- offset += qSize;
- privKey->qInvOffset = CORRECT_ENDIANNESS(offset);
-
- pkey = (char *) privKey->keyRecord;
-
-
-/* SAB first check that we don;t under flow the buffer */
- if ( pSize < pbytes ) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT, IBMCA_R_UNDERFLOW_CONDITION);
- goto err;
- }
-
- /* pkey += pSize - BN_num_bytes(p); WROING this should be dmp1) */
- pkey += pSize - BN_num_bytes(dmp1);
- BN_bn2bin(dmp1, pkey);
- pkey += BN_num_bytes(dmp1); /* move the pointer */
-
- BN_bn2bin(dmq1, pkey); /* Copy over dmq1 */
-
- pkey += qSize; /* move pointer */
- pkey += pSize - BN_num_bytes(p); /* set up for zero padding of next field */
-
- BN_bn2bin(p, pkey);
- pkey += BN_num_bytes(p); /* increment pointer by number of bytes moved */
-
- BN_bn2bin(q, pkey);
- pkey += qSize ; /* move the pointer */
- pkey += pSize - BN_num_bytes(iqmp); /* Adjust for padding */
- BN_bn2bin(iqmp, pkey);
-
- /* Prepare the argument and response */
-
- outLen = CORRECT_ENDIANNESS(privKey->qLength) * 2; /* Correct endianess is used
- because the fields were converted above */
-
- if (outLen > 256) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_OUTLEN_TO_LARGE);
- goto err;
- }
-
- /* SAB check for underflow here on the argeument */
- if ( outLen < BN_num_bytes(a)) {
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_UNDERFLOW_CONDITION);
- goto err;
- }
-
- BN_bn2bin(a, (unsigned char *)argument->d + outLen -
- BN_num_bytes(a));
- inLen = outLen;
-
- memset(result->d, 0, outLen);
-
- /* Perform the operation */
-
- if ( (rc = p_icaRsaCrt(handle, inLen, (unsigned char *)argument->d,
- privKey, &outLen, (unsigned char *)result->d)) != 0)
- {
- printf("rc = %d\n", rc);
- IBMCAerr(IBMCA_F_IBMCA_MOD_EXP_CRT,IBMCA_R_REQUEST_FAILED);
- goto err;
- }
-
- /* Convert the response */
-
- BN_bin2bn((unsigned char *)result->d, outLen, r);
- to_return = 1;
-
- err:
- BN_CTX_end(ctx);
- return to_return;
-
- }
-
-#ifndef OPENSSL_NO_DSA
-/* This code was liberated and adapted from the commented-out code in
- * dsa_ossl.c. Because of the unoptimised form of the Ibmca acceleration
- * (it doesn't have a CRT form for RSA), this function means that an
- * Ibmca system running with a DSA server certificate can handshake
- * around 5 or 6 times faster/more than an equivalent system running with
- * RSA. Just check out the "signs" statistics from the RSA and DSA parts
- * of "openssl speed -engine ibmca dsa1024 rsa1024". */
-static int ibmca_dsa_mod_exp(DSA *dsa, BIGNUM *rr, BIGNUM *a1,
- BIGNUM *p1, BIGNUM *a2, BIGNUM *p2, BIGNUM *m,
- BN_CTX *ctx, BN_MONT_CTX *in_mont)
- {
- BIGNUM t;
- int to_return = 0;
-
- BN_init(&t);
- /* let rr = a1 ^ p1 mod m */
- if (!ibmca_mod_exp(rr,a1,p1,m,ctx)) goto end;
- /* let t = a2 ^ p2 mod m */
- if (!ibmca_mod_exp(&t,a2,p2,m,ctx)) goto end;
- /* let rr = rr * t mod m */
- if (!BN_mod_mul(rr,rr,&t,m,ctx)) goto end;
- to_return = 1;
- end:
- BN_free(&t);
- return to_return;
- }
-
-
-static int ibmca_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
- const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
- BN_MONT_CTX *m_ctx)
- {
- return ibmca_mod_exp(r, a, p, m, ctx);
- }
-#endif
-
-/* This function is aliased to mod_exp (with the mont stuff dropped). */
-static int ibmca_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
- {
- return ibmca_mod_exp(r, a, p, m, ctx);
- }
-
-#ifndef OPENSSL_NO_DH
-/* This function is aliased to mod_exp (with the dh and mont dropped). */
-static int ibmca_mod_exp_dh(DH const *dh, BIGNUM *r,
- const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
- {
- return ibmca_mod_exp(r, a, p, m, ctx);
- }
-#endif
-
-/* Random bytes are good */
-static int ibmca_rand_bytes(unsigned char *buf, int num)
- {
- int to_return = 0; /* assume failure */
- unsigned int ret;
-
-
- if(handle == 0)
- {
- IBMCAerr(IBMCA_F_IBMCA_RAND_BYTES,IBMCA_R_NOT_INITIALISED);
- goto err;
- }
-
- ret = p_icaRandomNumberGenerate(handle, num, buf);
- if (ret < 0)
- {
- IBMCAerr(IBMCA_F_IBMCA_RAND_BYTES,IBMCA_R_REQUEST_FAILED);
- goto err;
- }
- to_return = 1;
- err:
- return to_return;
- }
-
-static int ibmca_rand_status(void)
- {
- return 1;
- }
-
-/* This stuff is needed if this ENGINE is being compiled into a self-contained
- * shared-library. */
-#ifdef ENGINE_DYNAMIC_SUPPORT
-static int bind_fn(ENGINE *e, const char *id)
- {
- if(id && (strcmp(id, engine_ibmca_id) != 0)) /* WJH XXX */
- return 0;
- if(!bind_helper(e))
- return 0;
- return 1;
- }
-IMPLEMENT_DYNAMIC_CHECK_FN()
-IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
-#endif /* ENGINE_DYNAMIC_SUPPORT */
-
-
-#endif /* !OPENSSL_NO_HW_IBMCA */
-#endif /* !OPENSSL_NO_HW */
projects / cassiopeia.git / blobdiff