diff options
Diffstat (limited to 'demos/engines/ibmca/hw_ibmca.c')
| -rw-r--r-- | demos/engines/ibmca/hw_ibmca.c | 896 |
1 files changed, 0 insertions, 896 deletions
diff --git a/demos/engines/ibmca/hw_ibmca.c b/demos/engines/ibmca/hw_ibmca.c deleted file mode 100644 index 0f065b2e5a..0000000000 --- a/demos/engines/ibmca/hw_ibmca.c +++ /dev/null @@ -1,896 +0,0 @@ -/* - * 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_OpenSSL()" 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_OpenSSL(); - 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)) == NULL - || (p2 = DSO_bind_func(ibmca_dso, IBMCA_F2)) == NULL - || (p3 = DSO_bind_func(ibmca_dso, IBMCA_F3)) == NULL - || (p4 = DSO_bind_func(ibmca_dso, IBMCA_F4)) == NULL - || (p5 = DSO_bind_func(ibmca_dso, IBMCA_F5)) == NULL) { - 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: - 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(*publKey)); - - 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: - 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(*privKey)); - 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 */ - /* set up for zero padding of next field */ - pkey += pSize - BN_num_bytes(p); - - BN_bn2bin(p, pkey); - /* increment pointer by number of bytes moved */ - pkey += BN_num_bytes(p); - - 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 */ - - /* - * Correct endianess is used because the fields were converted above - */ - outLen = CORRECT_ENDIANNESS(privKey->qLength) * 2; - - 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 */ |