diff options
Diffstat (limited to 'crypto/engine/hw_ncipher.c')
| -rw-r--r-- | crypto/engine/hw_ncipher.c | 1018 |
1 files changed, 0 insertions, 1018 deletions
diff --git a/crypto/engine/hw_ncipher.c b/crypto/engine/hw_ncipher.c deleted file mode 100644 index 3e4ec44e860..00000000000 --- a/crypto/engine/hw_ncipher.c +++ /dev/null @@ -1,1018 +0,0 @@ -/* crypto/engine/hw_ncipher.c -*- mode: C; c-file-style: "eay" -*- */ -/* Written by Richard Levitte ([email protected]), Geoff Thorpe - * ([email protected]) and Dr Stephen N Henson ([email protected]) - * 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 - * [email protected]. - * - * 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 - * ([email protected]). This product includes software written by Tim - * Hudson ([email protected]). - * - */ - -#include <stdio.h> -#include <openssl/crypto.h> -#include <openssl/pem.h> -#include "cryptlib.h" -#include <openssl/dso.h> -#include "engine_int.h" -#include <openssl/engine.h> - -#ifndef NO_HW -#ifndef NO_HW_NCIPHER - -/* Attribution notice: nCipher have said several times that it's OK for - * us to implement a general interface to their boxes, and recently declared - * their HWCryptoHook to be public, and therefore available for us to use. - * Thanks, nCipher. - * - * The hwcryptohook.h included here is from May 2000. - * [Richard Levitte] - */ -#ifdef FLAT_INC -#include "hwcryptohook.h" -#else -#include "vendor_defns/hwcryptohook.h" -#endif - -static int hwcrhk_init(void); -static int hwcrhk_finish(void); -static int hwcrhk_ctrl(int cmd, long i, void *p, void (*f)()); - -/* Functions to handle mutexes */ -static int hwcrhk_mutex_init(HWCryptoHook_Mutex*, HWCryptoHook_CallerContext*); -static int hwcrhk_mutex_lock(HWCryptoHook_Mutex*); -static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex*); -static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex*); - -/* BIGNUM stuff */ -static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx); - -/* RSA stuff */ -static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa); -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int hwcrhk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); - -/* DH stuff */ -/* This function is alised to mod_exp (with the DH and mont dropped). */ -static int hwcrhk_mod_exp_dh(DH *dh, BIGNUM *r, BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); - -/* RAND stuff */ -static int hwcrhk_rand_bytes(unsigned char *buf, int num); -static int hwcrhk_rand_status(void); - -/* KM stuff */ -static EVP_PKEY *hwcrhk_load_privkey(const char *key_id, - const char *passphrase); -static EVP_PKEY *hwcrhk_load_pubkey(const char *key_id, - const char *passphrase); -static void hwcrhk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, - int ind,long argl, void *argp); - -/* Interaction stuff */ -static int hwcrhk_get_pass(const char *prompt_info, - int *len_io, char *buf, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx); -static void hwcrhk_log_message(void *logstr, const char *message); - -/* Our internal RSA_METHOD that we provide pointers to */ -static RSA_METHOD hwcrhk_rsa = - { - "nCipher RSA method", - NULL, - NULL, - NULL, - NULL, - hwcrhk_rsa_mod_exp, - hwcrhk_mod_exp_mont, - NULL, - NULL, - 0, - NULL, - NULL, - NULL - }; - -/* Our internal DH_METHOD that we provide pointers to */ -static DH_METHOD hwcrhk_dh = - { - "nCipher DH method", - NULL, - NULL, - hwcrhk_mod_exp_dh, - NULL, - NULL, - 0, - NULL - }; - -static RAND_METHOD hwcrhk_rand = - { - /* "nCipher RAND method", */ - NULL, - hwcrhk_rand_bytes, - NULL, - NULL, - hwcrhk_rand_bytes, - hwcrhk_rand_status, - }; - -/* Our ENGINE structure. */ -static ENGINE engine_hwcrhk = - { - "chil", - "nCipher hardware engine support", - &hwcrhk_rsa, - NULL, - &hwcrhk_dh, - &hwcrhk_rand, - hwcrhk_mod_exp, - NULL, - hwcrhk_init, - hwcrhk_finish, - hwcrhk_ctrl, - hwcrhk_load_privkey, - hwcrhk_load_pubkey, - 0, /* no flags */ - 0, 0, /* no references */ - NULL, NULL /* unlinked */ - }; - -/* Internal stuff for HWCryptoHook */ - -/* Some structures needed for proper use of thread locks */ -/* hwcryptohook.h has some typedefs that turn struct HWCryptoHook_MutexValue - into HWCryptoHook_Mutex */ -struct HWCryptoHook_MutexValue - { - int lockid; - }; - -/* hwcryptohook.h has some typedefs that turn - struct HWCryptoHook_PassphraseContextValue - into HWCryptoHook_PassphraseContext */ -struct HWCryptoHook_PassphraseContextValue - { - void *any; - }; - -/* hwcryptohook.h has some typedefs that turn - struct HWCryptoHook_CallerContextValue - into HWCryptoHook_CallerContext */ -struct HWCryptoHook_CallerContextValue - { - void *any; - }; - -/* The MPI structure in HWCryptoHook is pretty compatible with OpenSSL - BIGNUM's, so lets define a couple of conversion macros */ -#define BN2MPI(mp, bn) \ - {mp.size = bn->top * sizeof(BN_ULONG); mp.buf = (unsigned char *)bn->d;} -#define MPI2BN(bn, mp) \ - {mp.size = bn->dmax * sizeof(BN_ULONG); mp.buf = (unsigned char *)bn->d;} - -#if 0 /* Card and password management is not yet supported */ -/* HWCryptoHook callbacks. insert_card() and get_pass() are not yet - defined, because we haven't quite decided on the proper form yet. - log_message() just adds an entry in the error stack. I don't know - if that's good or bad... */ -static int insert_card(const char *prompt_info, - const char *wrong_info, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx); -static int get_pass(const char *prompt_info, - int *len_io, char *buf, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx); -#endif - -static BIO *logstream = NULL; -static pem_password_cb *password_callback = NULL; -#if 0 -static void *password_callback_userdata = NULL; -#endif -static int disable_mutex_callbacks = 0; - -/* Stuff to pass to the HWCryptoHook library */ -static HWCryptoHook_InitInfo hwcrhk_globals = { - 0, /* Flags */ - &logstream, /* logstream */ - sizeof(BN_ULONG), /* limbsize */ - 0, /* mslimb first: false for BNs */ - -1, /* msbyte first: use native */ - 0, /* Max mutexes, 0 = no small limit */ - 0, /* Max simultaneous, 0 = default */ - - /* The next few are mutex stuff: we write wrapper functions - around the OS mutex functions. We initialise them to 0 - here, and change that to actual function pointers in hwcrhk_init() - if dynamic locks are supported (that is, if the application - programmer has made sure of setting up callbacks bafore starting - this engine) *and* if disable_mutex_callbacks hasn't been set by - a call to ENGINE_ctrl(ENGINE_CTRL_CHIL_NO_LOCKING). */ - sizeof(HWCryptoHook_Mutex), - 0, - 0, - 0, - 0, - - /* The next few are condvar stuff: we write wrapper functions - round the OS functions. Currently not implemented and not - and absolute necessity even in threaded programs, therefore - 0'ed. Will hopefully be implemented some day, since it - enhances the efficiency of HWCryptoHook. */ - 0, /* sizeof(HWCryptoHook_CondVar), */ - 0, /* hwcrhk_cv_init, */ - 0, /* hwcrhk_cv_wait, */ - 0, /* hwcrhk_cv_signal, */ - 0, /* hwcrhk_cv_broadcast, */ - 0, /* hwcrhk_cv_destroy, */ - - hwcrhk_get_pass, /* pass phrase */ - 0, /* insert_card, */ /* insert a card */ - hwcrhk_log_message /* Log message */ -}; - - -/* Now, to our own code */ - -/* 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_ncipher() - { - 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(); - hwcrhk_rsa.rsa_pub_enc = meth1->rsa_pub_enc; - hwcrhk_rsa.rsa_pub_dec = meth1->rsa_pub_dec; - hwcrhk_rsa.rsa_priv_enc = meth1->rsa_priv_enc; - hwcrhk_rsa.rsa_priv_dec = meth1->rsa_priv_dec; - - /* Much the same for Diffie-Hellman */ - meth2 = DH_OpenSSL(); - hwcrhk_dh.generate_key = meth2->generate_key; - hwcrhk_dh.compute_key = meth2->compute_key; - return &engine_hwcrhk; - } - -/* This is a process-global DSO handle used for loading and unloading - * the HWCryptoHook 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 *hwcrhk_dso = NULL; -static HWCryptoHook_ContextHandle hwcrhk_context = 0; -static int hndidx = -1; /* Index for KM handle. Not really used yet. */ - -/* These are the function pointers that are (un)set when the library has - * successfully (un)loaded. */ -static HWCryptoHook_Init_t *p_hwcrhk_Init = NULL; -static HWCryptoHook_Finish_t *p_hwcrhk_Finish = NULL; -static HWCryptoHook_ModExp_t *p_hwcrhk_ModExp = NULL; -static HWCryptoHook_RSA_t *p_hwcrhk_RSA = NULL; -static HWCryptoHook_RandomBytes_t *p_hwcrhk_RandomBytes = NULL; -static HWCryptoHook_RSALoadKey_t *p_hwcrhk_RSALoadKey = NULL; -static HWCryptoHook_RSAGetPublicKey_t *p_hwcrhk_RSAGetPublicKey = NULL; -static HWCryptoHook_RSAUnloadKey_t *p_hwcrhk_RSAUnloadKey = NULL; -static HWCryptoHook_ModExpCRT_t *p_hwcrhk_ModExpCRT = NULL; - -/* Used in the DSO operations. */ -static const char *HWCRHK_LIBNAME = "nfhwcrhk"; -static const char *n_hwcrhk_Init = "HWCryptoHook_Init"; -static const char *n_hwcrhk_Finish = "HWCryptoHook_Finish"; -static const char *n_hwcrhk_ModExp = "HWCryptoHook_ModExp"; -static const char *n_hwcrhk_RSA = "HWCryptoHook_RSA"; -static const char *n_hwcrhk_RandomBytes = "HWCryptoHook_RandomBytes"; -static const char *n_hwcrhk_RSALoadKey = "HWCryptoHook_RSALoadKey"; -static const char *n_hwcrhk_RSAGetPublicKey = "HWCryptoHook_RSAGetPublicKey"; -static const char *n_hwcrhk_RSAUnloadKey = "HWCryptoHook_RSAUnloadKey"; -static const char *n_hwcrhk_ModExpCRT = "HWCryptoHook_ModExpCRT"; - -/* HWCryptoHook 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(HWCryptoHook_ContextHandle *hac) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - - rmsg.buf = tempbuf; - rmsg.size = 1024; - - *hac = p_hwcrhk_Init(&hwcrhk_globals, sizeof(hwcrhk_globals), &rmsg, - NULL); - if (!*hac) - return 0; - return 1; - } - -/* similarly to release one. */ -static void release_context(HWCryptoHook_ContextHandle hac) - { - p_hwcrhk_Finish(hac); - } - -/* (de)initialisation functions. */ -static int hwcrhk_init() - { - HWCryptoHook_Init_t *p1; - HWCryptoHook_Finish_t *p2; - HWCryptoHook_ModExp_t *p3; - HWCryptoHook_RSA_t *p4; - HWCryptoHook_RSALoadKey_t *p5; - HWCryptoHook_RSAGetPublicKey_t *p6; - HWCryptoHook_RSAUnloadKey_t *p7; - HWCryptoHook_RandomBytes_t *p8; - HWCryptoHook_ModExpCRT_t *p9; - - if(hwcrhk_dso != NULL) - { - ENGINEerr(ENGINE_F_HWCRHK_INIT,ENGINE_R_ALREADY_LOADED); - goto err; - } - /* Attempt to load libnfhwcrhk.so/nfhwcrhk.dll/whatever. */ - hwcrhk_dso = DSO_load(NULL, HWCRHK_LIBNAME, NULL, 0); - if(hwcrhk_dso == NULL) - { - ENGINEerr(ENGINE_F_HWCRHK_INIT,ENGINE_R_DSO_FAILURE); - goto err; - } - if(!(p1 = (HWCryptoHook_Init_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_Init)) || - !(p2 = (HWCryptoHook_Finish_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_Finish)) || - !(p3 = (HWCryptoHook_ModExp_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExp)) || - !(p4 = (HWCryptoHook_RSA_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSA)) || - !(p5 = (HWCryptoHook_RSALoadKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSALoadKey)) || - !(p6 = (HWCryptoHook_RSAGetPublicKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAGetPublicKey)) || - !(p7 = (HWCryptoHook_RSAUnloadKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAUnloadKey)) || - !(p8 = (HWCryptoHook_RandomBytes_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RandomBytes)) || - !(p9 = (HWCryptoHook_ModExpCRT_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExpCRT))) - { - ENGINEerr(ENGINE_F_HWCRHK_INIT,ENGINE_R_DSO_FAILURE); - goto err; - } - /* Copy the pointers */ - p_hwcrhk_Init = p1; - p_hwcrhk_Finish = p2; - p_hwcrhk_ModExp = p3; - p_hwcrhk_RSA = p4; - p_hwcrhk_RSALoadKey = p5; - p_hwcrhk_RSAGetPublicKey = p6; - p_hwcrhk_RSAUnloadKey = p7; - p_hwcrhk_RandomBytes = p8; - p_hwcrhk_ModExpCRT = p9; - - /* Check if the application decided to support dynamic locks, - and if it does, use them. */ - if (disable_mutex_callbacks == 0 && - CRYPTO_get_dynlock_create_callback() != NULL && - CRYPTO_get_dynlock_lock_callback() != NULL && - CRYPTO_get_dynlock_destroy_callback() != NULL) - { - hwcrhk_globals.mutex_init = hwcrhk_mutex_init; - hwcrhk_globals.mutex_acquire = hwcrhk_mutex_lock; - hwcrhk_globals.mutex_release = hwcrhk_mutex_unlock; - hwcrhk_globals.mutex_destroy = hwcrhk_mutex_destroy; - } - - /* Try and get a context - if not, we may have a DSO but no - * accelerator! */ - if(!get_context(&hwcrhk_context)) - { - ENGINEerr(ENGINE_F_HWCRHK_INIT,ENGINE_R_UNIT_FAILURE); - goto err; - } - /* Everything's fine. */ - if (hndidx == -1) - hndidx = RSA_get_ex_new_index(0, - "nFast HWCryptoHook RSA key handle", - NULL, NULL, hwcrhk_ex_free); - return 1; -err: - if(hwcrhk_dso) - DSO_free(hwcrhk_dso); - hwcrhk_dso = NULL; - p_hwcrhk_Init = NULL; - p_hwcrhk_Finish = NULL; - p_hwcrhk_ModExp = NULL; - p_hwcrhk_RSA = NULL; - p_hwcrhk_RSALoadKey = NULL; - p_hwcrhk_RSAGetPublicKey = NULL; - p_hwcrhk_RSAUnloadKey = NULL; - p_hwcrhk_ModExpCRT = NULL; - p_hwcrhk_RandomBytes = NULL; - return 0; - } - -static int hwcrhk_finish() - { - int to_return = 1; - if(hwcrhk_dso == NULL) - { - ENGINEerr(ENGINE_F_HWCRHK_FINISH,ENGINE_R_NOT_LOADED); - to_return = 0; - goto err; - } - release_context(hwcrhk_context); - if(!DSO_free(hwcrhk_dso)) - { - ENGINEerr(ENGINE_F_HWCRHK_FINISH,ENGINE_R_DSO_FAILURE); - to_return = 0; - goto err; - } - err: - if (logstream) - BIO_free(logstream); - hwcrhk_dso = NULL; - p_hwcrhk_Init = NULL; - p_hwcrhk_Finish = NULL; - p_hwcrhk_ModExp = NULL; - p_hwcrhk_RSA = NULL; - p_hwcrhk_RSALoadKey = NULL; - p_hwcrhk_RSAGetPublicKey = NULL; - p_hwcrhk_RSAUnloadKey = NULL; - p_hwcrhk_ModExpCRT = NULL; - p_hwcrhk_RandomBytes = NULL; - return to_return; - } - -static int hwcrhk_ctrl(int cmd, long i, void *p, void (*f)()) - { - int to_return = 1; - - switch(cmd) - { - case ENGINE_CTRL_SET_LOGSTREAM: - { - BIO *bio = (BIO *)p; - - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if (logstream) - { - BIO_free(logstream); - logstream = NULL; - } - if (CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO) > 1) - logstream = bio; - else - ENGINEerr(ENGINE_F_HWCRHK_CTRL,ENGINE_R_BIO_WAS_FREED); - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - case ENGINE_CTRL_SET_PASSWORD_CALLBACK: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - password_callback = (pem_password_cb *)f; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - /* this enables or disables the "SimpleForkCheck" flag used in the - * initialisation structure. */ - case ENGINE_CTRL_CHIL_SET_FORKCHECK: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if(i) - hwcrhk_globals.flags |= - HWCryptoHook_InitFlags_SimpleForkCheck; - else - hwcrhk_globals.flags &= - ~HWCryptoHook_InitFlags_SimpleForkCheck; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - /* This will prevent the initialisation function from "installing" - * the mutex-handling callbacks, even if they are available from - * within the library (or were provided to the library from the - * calling application). This is to remove any baggage for - * applications not using multithreading. */ - case ENGINE_CTRL_CHIL_NO_LOCKING: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - disable_mutex_callbacks = 1; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - - /* The command isn't understood by this engine */ - default: - ENGINEerr(ENGINE_F_HWCRHK_CTRL, - ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED); - to_return = 0; - break; - } - - return to_return; - } - -static EVP_PKEY *hwcrhk_load_privkey(const char *key_id, - const char *passphrase) - { - RSA *rtmp = NULL; - EVP_PKEY *res = NULL; - HWCryptoHook_MPI e, n; - HWCryptoHook_RSAKeyHandle *hptr; - HWCryptoHook_ErrMsgBuf rmsg; - - if(!hwcrhk_context) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PRIVKEY, - ENGINE_R_NOT_INITIALISED); - goto err; - } - hptr = OPENSSL_malloc(sizeof(HWCryptoHook_RSAKeyHandle)); - if (!hptr) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PRIVKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - if (p_hwcrhk_RSALoadKey(hwcrhk_context, key_id, hptr, - &rmsg, NULL)) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PRIVKEY, - ENGINE_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - if (!*hptr) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PRIVKEY, - ENGINE_R_NO_KEY); - goto err; - } - rtmp = RSA_new_method(&engine_hwcrhk); - RSA_set_ex_data(rtmp, hndidx, (char *)hptr); - rtmp->e = BN_new(); - rtmp->n = BN_new(); - rtmp->flags |= RSA_FLAG_EXT_PKEY; - MPI2BN(rtmp->e, e); - MPI2BN(rtmp->n, n); - if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg) - != HWCRYPTOHOOK_ERROR_MPISIZE) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PUBKEY,ENGINE_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - - bn_expand2(rtmp->e, e.size/sizeof(BN_ULONG)); - bn_expand2(rtmp->n, n.size/sizeof(BN_ULONG)); - MPI2BN(rtmp->e, e); - MPI2BN(rtmp->n, n); - - if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg)) - { - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PUBKEY, - ENGINE_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - rtmp->e->top = e.size / sizeof(BN_ULONG); - bn_fix_top(rtmp->e); - rtmp->n->top = n.size / sizeof(BN_ULONG); - bn_fix_top(rtmp->n); - - res = EVP_PKEY_new(); - EVP_PKEY_assign_RSA(res, rtmp); - - return res; - err: - if (res) - EVP_PKEY_free(res); - if (rtmp) - RSA_free(rtmp); - return NULL; - } - -static EVP_PKEY *hwcrhk_load_pubkey(const char *key_id, const char *passphrase) - { - EVP_PKEY *res = hwcrhk_load_privkey(key_id, passphrase); - - if (res) - switch(res->type) - { - case EVP_PKEY_RSA: - { - RSA *rsa = NULL; - - CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY); - rsa = res->pkey.rsa; - res->pkey.rsa = RSA_new(); - res->pkey.rsa->n = rsa->n; - res->pkey.rsa->e = rsa->e; - CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); - RSA_free(rsa); - } - default: - ENGINEerr(ENGINE_F_HWCRHK_LOAD_PUBKEY, - ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED); - goto err; - } - - return res; - err: - if (res) - EVP_PKEY_free(res); - return NULL; - } - -/* A little mod_exp */ -static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - /* Since HWCryptoHook_MPI is pretty compatible with BIGNUM's, - we use them directly, plus a little macro magic. We only - thing we need to make sure of is that enough space is allocated. */ - HWCryptoHook_MPI m_a, m_p, m_n, m_r; - int to_return, ret; - - to_return = 0; /* expect failure */ - rmsg.buf = tempbuf; - rmsg.size = 1024; - - if(!hwcrhk_context) - { - ENGINEerr(ENGINE_F_HWCRHK_MOD_EXP,ENGINE_R_NOT_INITIALISED); - goto err; - } - /* Prepare the params */ - bn_expand2(r, m->top); /* Check for error !! */ - BN2MPI(m_a, a); - BN2MPI(m_p, p); - BN2MPI(m_n, m); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_ModExp(hwcrhk_context, m_a, m_p, m_n, &m_r, &rmsg); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - ENGINEerr(ENGINE_F_HWCRHK_MOD_EXP,ENGINE_R_REQUEST_FALLBACK); - } - else - { - ENGINEerr(ENGINE_F_HWCRHK_MOD_EXP,ENGINE_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - - to_return = 1; -err: - return to_return; - } - -static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - HWCryptoHook_RSAKeyHandle *hptr; - int to_return = 0, ret; - - if(!hwcrhk_context) - { - ENGINEerr(ENGINE_F_HWCRHK_MOD_EXP,ENGINE_R_NOT_INITIALISED); - goto err; - } - - /* This provides support for nForce keys. Since that's opaque data - all we do is provide a handle to the proper key and let HWCryptoHook - take care of the rest. */ - if ((hptr = (HWCryptoHook_RSAKeyHandle *) RSA_get_ex_data(rsa, hndidx)) - != NULL) - { - HWCryptoHook_MPI m_a, m_r; - - if(!rsa->n) - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP, - ENGINE_R_MISSING_KEY_COMPONENTS); - goto err; - } - - rmsg.buf = tempbuf; - rmsg.size = 1024; - - /* Prepare the params */ - bn_expand2(r, rsa->n->top); /* Check for error !! */ - BN2MPI(m_a, I); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_RSA(m_a, *hptr, &m_r, &rmsg); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP,ENGINE_R_REQUEST_FALLBACK); - } - else - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP,ENGINE_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - } - else - { - HWCryptoHook_MPI m_a, m_p, m_q, m_dmp1, m_dmq1, m_iqmp, m_r; - - if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP, - ENGINE_R_MISSING_KEY_COMPONENTS); - goto err; - } - - rmsg.buf = tempbuf; - rmsg.size = 1024; - - /* Prepare the params */ - bn_expand2(r, rsa->n->top); /* Check for error !! */ - BN2MPI(m_a, I); - BN2MPI(m_p, rsa->p); - BN2MPI(m_q, rsa->q); - BN2MPI(m_dmp1, rsa->dmp1); - BN2MPI(m_dmq1, rsa->dmq1); - BN2MPI(m_iqmp, rsa->iqmp); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_ModExpCRT(hwcrhk_context, m_a, m_p, m_q, - m_dmp1, m_dmq1, m_iqmp, &m_r, NULL); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP,ENGINE_R_REQUEST_FALLBACK); - } - else - { - ENGINEerr(ENGINE_F_HWCRHK_RSA_MOD_EXP,ENGINE_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - } - /* If we're here, we must be here with some semblance of success :-) */ - to_return = 1; -err: - return to_return; - } - -/* This function is aliased to mod_exp (with the mont stuff dropped). */ -static int hwcrhk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return hwcrhk_mod_exp(r, a, p, m, ctx); - } - -/* This function is aliased to mod_exp (with the dh and mont dropped). */ -static int hwcrhk_mod_exp_dh(DH *dh, BIGNUM *r, BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return hwcrhk_mod_exp(r, a, p, m, ctx); - } - -/* Random bytes are good */ -static int hwcrhk_rand_bytes(unsigned char *buf, int num) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - int to_return = 0; /* assume failure */ - int ret; - - rmsg.buf = tempbuf; - rmsg.size = 1024; - - if(!hwcrhk_context) - { - ENGINEerr(ENGINE_F_HWCRHK_RAND_BYTES,ENGINE_R_NOT_INITIALISED); - goto err; - } - - ret = p_hwcrhk_RandomBytes(hwcrhk_context, buf, num, &rmsg); - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - ENGINEerr(ENGINE_F_HWCRHK_RAND_BYTES,ENGINE_R_REQUEST_FALLBACK); - } - else - { - ENGINEerr(ENGINE_F_HWCRHK_RAND_BYTES,ENGINE_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - to_return = 1; - err: - return to_return; - } - -static int hwcrhk_rand_status(void) - { - return 1; - } - -/* This cleans up an RSA KM key, called when ex_data is freed */ - -static void hwcrhk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, - int ind,long argl, void *argp) -{ - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - HWCryptoHook_RSAKeyHandle *hptr; - int ret; - - rmsg.buf = tempbuf; - rmsg.size = 1024; - - hptr = (HWCryptoHook_RSAKeyHandle *) item; - if(!hptr) return; - ret = p_hwcrhk_RSAUnloadKey(*hptr, NULL); - OPENSSL_free(hptr); -} - -/* Mutex calls: since the HWCryptoHook model closely follows the POSIX model - * these just wrap the POSIX functions and add some logging. - */ - -static int hwcrhk_mutex_init(HWCryptoHook_Mutex* mt, - HWCryptoHook_CallerContext *cactx) - { - mt->lockid = CRYPTO_get_new_dynlockid(); - if (mt->lockid == 0) - return 0; - return 1; - } - -static int hwcrhk_mutex_lock(HWCryptoHook_Mutex *mt) - { - CRYPTO_w_lock(mt->lockid); - return 1; - } - -void hwcrhk_mutex_unlock(HWCryptoHook_Mutex * mt) - { - CRYPTO_w_unlock(mt->lockid); - } - -static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex *mt) - { - CRYPTO_destroy_dynlockid(mt->lockid); - } - -static int hwcrhk_get_pass(const char *prompt_info, - int *len_io, char *buf, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx) - { - int l = 0; - char prompt[1024]; - - if (password_callback == NULL) - { - ENGINEerr(ENGINE_F_HWCRHK_GET_PASS,ENGINE_R_NO_CALLBACK); - return -1; - } - if (prompt_info) - { - strncpy(prompt, "Card: \"", sizeof(prompt)); - l += 5; - strncpy(prompt + l, prompt_info, sizeof(prompt) - l); - l += strlen(prompt_info); - if (l + 2 < sizeof(prompt)) - { - strncpy(prompt + l, "\"\n", sizeof(prompt) - l); - l += 2; - } - } - if (l < sizeof(prompt) - 1) - { - strncpy(prompt, "Enter Passphrase <enter to cancel>:", - sizeof(prompt) - l); - l += 35; - } - prompt[l] = '\0'; - - /* I know, passing on the prompt instead of the user data *is* - a bad thing. However, that's all we have right now. - -- Richard Levitte */ - *len_io = password_callback(buf, *len_io, 0, prompt); - if(!*len_io) - return -1; - return 0; - } - -static void hwcrhk_log_message(void *logstr, const char *message) - { - BIO *lstream = NULL; - - CRYPTO_w_lock(CRYPTO_LOCK_BIO); - if (logstr) - lstream=*(BIO **)logstr; - if (lstream) - { - BIO_write(lstream, message, strlen(message)); - } - CRYPTO_w_unlock(CRYPTO_LOCK_BIO); - } - -#endif /* !NO_HW_NCIPHER */ -#endif /* !NO_HW */ |