--- /dev/null
+/* Written by Corinne Dive-Reclus(cdive@baltimore.com)
+*
+*
+* 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/)"
+*
+* Written by Corinne Dive-Reclus(cdive@baltimore.com)
+*
+* Copyright@2001 Baltimore Technologies Ltd.
+* All right Reserved.
+* *
+* THIS FILE IS PROVIDED BY BALTIMORE TECHNOLOGIES ``AS IS'' AND *
+* ANY EXPRESS 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 BALTIMORE TECHNOLOGIES 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. *
+====================================================================*/
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/crypto.h>
+#include <openssl/pem.h>
+#include <openssl/dso.h>
+#include <openssl/engine.h>
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
+
+#ifndef OPENSSL_NO_HW
+#ifndef OPENSSL_NO_HW_SUREWARE
+
+#ifdef FLAT_INC
+#include "sureware.h"
+#else
+#include "vendor_defns/sureware.h"
+#endif
+
+#define SUREWARE_LIB_NAME "sureware engine"
+#include "e_sureware_err.c"
+
+static int surewarehk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
+static int surewarehk_destroy(ENGINE *e);
+static int surewarehk_init(ENGINE *e);
+static int surewarehk_finish(ENGINE *e);
+static int surewarehk_modexp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx);
+
+/* RSA stuff */
+#ifndef OPENSSL_NO_RSA
+static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
+ RSA *rsa,int padding);
+static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
+ RSA *rsa,int padding);
+#endif
+
+/* RAND stuff */
+static int surewarehk_rand_bytes(unsigned char *buf, int num);
+static void surewarehk_rand_seed(const void *buf, int num);
+static void surewarehk_rand_add(const void *buf, int num, double entropy);
+
+/* KM stuff */
+static EVP_PKEY *surewarehk_load_privkey(ENGINE *e, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data);
+static EVP_PKEY *surewarehk_load_pubkey(ENGINE *e, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data);
+static void surewarehk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
+ int idx,long argl, void *argp);
+#if 0
+static void surewarehk_dh_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
+ int idx,long argl, void *argp);
+#endif
+
+#ifndef OPENSSL_NO_RSA
+/* This function is aliased to mod_exp (with the mont stuff dropped). */
+static int surewarehk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return surewarehk_modexp(r, a, p, m, ctx);
+}
+
+/* Our internal RSA_METHOD that we provide pointers to */
+static RSA_METHOD surewarehk_rsa =
+ {
+ "SureWare RSA method",
+ NULL, /* pub_enc*/
+ NULL, /* pub_dec*/
+ surewarehk_rsa_sign, /* our rsa_sign is OpenSSL priv_enc*/
+ surewarehk_rsa_priv_dec, /* priv_dec*/
+ NULL, /*mod_exp*/
+ surewarehk_mod_exp_mont, /*mod_exp_mongomery*/
+ NULL, /* init*/
+ NULL, /* finish*/
+ 0, /* RSA flag*/
+ NULL,
+ NULL, /* OpenSSL sign*/
+ NULL, /* OpenSSL verify*/
+ NULL /* keygen */
+ };
+#endif
+
+#ifndef OPENSSL_NO_DH
+/* Our internal DH_METHOD that we provide pointers to */
+/* This function is aliased to mod_exp (with the dh and mont dropped). */
+static int surewarehk_modexp_dh(const DH *dh, BIGNUM *r, const BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return surewarehk_modexp(r, a, p, m, ctx);
+}
+
+static DH_METHOD surewarehk_dh =
+ {
+ "SureWare DH method",
+ NULL,/*gen_key*/
+ NULL,/*agree,*/
+ surewarehk_modexp_dh, /*dh mod exp*/
+ NULL, /* init*/
+ NULL, /* finish*/
+ 0, /* flags*/
+ NULL,
+ NULL
+ };
+#endif
+
+static RAND_METHOD surewarehk_rand =
+ {
+ /* "SureWare RAND method", */
+ surewarehk_rand_seed,
+ surewarehk_rand_bytes,
+ NULL,/*cleanup*/
+ surewarehk_rand_add,
+ surewarehk_rand_bytes,
+ NULL,/*rand_status*/
+ };
+
+#ifndef OPENSSL_NO_DSA
+/* DSA stuff */
+static DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
+static int surewarehk_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 (!surewarehk_modexp(rr,a1,p1,m,ctx)) goto end;
+ /* let t = a2 ^ p2 mod m */
+ if (!surewarehk_modexp(&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 DSA_METHOD surewarehk_dsa =
+ {
+ "SureWare DSA method",
+ surewarehk_dsa_do_sign,
+ NULL,/*sign setup*/
+ NULL,/*verify,*/
+ surewarehk_dsa_mod_exp,/*mod exp*/
+ NULL,/*bn mod exp*/
+ NULL, /*init*/
+ NULL,/*finish*/
+ 0,
+ NULL,
+ NULL,
+ NULL
+ };
+#endif
+
+static const char *engine_sureware_id = "sureware";
+static const char *engine_sureware_name = "SureWare hardware engine support";
+
+/* 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!!!) */
+static int bind_sureware(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_sureware_id) ||
+ !ENGINE_set_name(e, engine_sureware_name) ||
+#ifndef OPENSSL_NO_RSA
+ !ENGINE_set_RSA(e, &surewarehk_rsa) ||
+#endif
+#ifndef OPENSSL_NO_DSA
+ !ENGINE_set_DSA(e, &surewarehk_dsa) ||
+#endif
+#ifndef OPENSSL_NO_DH
+ !ENGINE_set_DH(e, &surewarehk_dh) ||
+#endif
+ !ENGINE_set_RAND(e, &surewarehk_rand) ||
+ !ENGINE_set_destroy_function(e, surewarehk_destroy) ||
+ !ENGINE_set_init_function(e, surewarehk_init) ||
+ !ENGINE_set_finish_function(e, surewarehk_finish) ||
+ !ENGINE_set_ctrl_function(e, surewarehk_ctrl) ||
+ !ENGINE_set_load_privkey_function(e, surewarehk_load_privkey) ||
+ !ENGINE_set_load_pubkey_function(e, surewarehk_load_pubkey))
+ return 0;
+
+#ifndef OPENSSL_NO_RSA
+ /* 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();
+ if (meth1)
+ {
+ surewarehk_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
+ surewarehk_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
+ }
+#endif
+
+#ifndef OPENSSL_NO_DSA
+ /* Use the DSA_OpenSSL() method and just hook the mod_exp-ish
+ * bits. */
+ meth2 = DSA_OpenSSL();
+ if (meth2)
+ {
+ surewarehk_dsa.dsa_do_verify = meth2->dsa_do_verify;
+ }
+#endif
+
+#ifndef OPENSSL_NO_DH
+ /* Much the same for Diffie-Hellman */
+ meth3 = DH_OpenSSL();
+ if (meth3)
+ {
+ surewarehk_dh.generate_key = meth3->generate_key;
+ surewarehk_dh.compute_key = meth3->compute_key;
+ }
+#endif
+
+ /* Ensure the sureware error handling is set up */
+ ERR_load_SUREWARE_strings();
+ return 1;
+}
+
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+static int bind_helper(ENGINE *e, const char *id)
+ {
+ if(id && (strcmp(id, engine_sureware_id) != 0))
+ return 0;
+ if(!bind_sureware(e))
+ return 0;
+ return 1;
+ }
+IMPLEMENT_DYNAMIC_CHECK_FN()
+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
+#else
+static ENGINE *engine_sureware(void)
+ {
+ ENGINE *ret = ENGINE_new();
+ if(!ret)
+ return NULL;
+ if(!bind_sureware(ret))
+ {
+ ENGINE_free(ret);
+ return NULL;
+ }
+ return ret;
+ }
+
+void ENGINE_load_sureware(void)
+ {
+ /* Copied from eng_[openssl|dyn].c */
+ ENGINE *toadd = engine_sureware();
+ if(!toadd) return;
+ ENGINE_add(toadd);
+ ENGINE_free(toadd);
+ ERR_clear_error();
+ }
+#endif
+
+/* This is a process-global DSO handle used for loading and unloading
+ * the SureWareHook 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 *surewarehk_dso = NULL;
+#ifndef OPENSSL_NO_RSA
+static int rsaHndidx = -1; /* Index for KM handle. Not really used yet. */
+#endif
+#ifndef OPENSSL_NO_DSA
+static int dsaHndidx = -1; /* Index for KM handle. Not really used yet. */
+#endif
+
+/* These are the function pointers that are (un)set when the library has
+ * successfully (un)loaded. */
+static SureWareHook_Init_t *p_surewarehk_Init = NULL;
+static SureWareHook_Finish_t *p_surewarehk_Finish = NULL;
+static SureWareHook_Rand_Bytes_t *p_surewarehk_Rand_Bytes = NULL;
+static SureWareHook_Rand_Seed_t *p_surewarehk_Rand_Seed = NULL;
+static SureWareHook_Load_Privkey_t *p_surewarehk_Load_Privkey = NULL;
+static SureWareHook_Info_Pubkey_t *p_surewarehk_Info_Pubkey = NULL;
+static SureWareHook_Load_Rsa_Pubkey_t *p_surewarehk_Load_Rsa_Pubkey = NULL;
+static SureWareHook_Load_Dsa_Pubkey_t *p_surewarehk_Load_Dsa_Pubkey = NULL;
+static SureWareHook_Free_t *p_surewarehk_Free=NULL;
+static SureWareHook_Rsa_Priv_Dec_t *p_surewarehk_Rsa_Priv_Dec=NULL;
+static SureWareHook_Rsa_Sign_t *p_surewarehk_Rsa_Sign=NULL;
+static SureWareHook_Dsa_Sign_t *p_surewarehk_Dsa_Sign=NULL;
+static SureWareHook_Mod_Exp_t *p_surewarehk_Mod_Exp=NULL;
+
+/* Used in the DSO operations. */
+static const char *surewarehk_LIBNAME = "SureWareHook";
+static const char *n_surewarehk_Init = "SureWareHook_Init";
+static const char *n_surewarehk_Finish = "SureWareHook_Finish";
+static const char *n_surewarehk_Rand_Bytes="SureWareHook_Rand_Bytes";
+static const char *n_surewarehk_Rand_Seed="SureWareHook_Rand_Seed";
+static const char *n_surewarehk_Load_Privkey="SureWareHook_Load_Privkey";
+static const char *n_surewarehk_Info_Pubkey="SureWareHook_Info_Pubkey";
+static const char *n_surewarehk_Load_Rsa_Pubkey="SureWareHook_Load_Rsa_Pubkey";
+static const char *n_surewarehk_Load_Dsa_Pubkey="SureWareHook_Load_Dsa_Pubkey";
+static const char *n_surewarehk_Free="SureWareHook_Free";
+static const char *n_surewarehk_Rsa_Priv_Dec="SureWareHook_Rsa_Priv_Dec";
+static const char *n_surewarehk_Rsa_Sign="SureWareHook_Rsa_Sign";
+static const char *n_surewarehk_Dsa_Sign="SureWareHook_Dsa_Sign";
+static const char *n_surewarehk_Mod_Exp="SureWareHook_Mod_Exp";
+static BIO *logstream = NULL;
+
+/* SureWareHook 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.
+*/
+static int threadsafe=1;
+static int surewarehk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
+{
+ 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
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_CTRL,SUREWARE_R_BIO_WAS_FREED);
+ }
+ 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);
+ threadsafe = 0;
+ CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);
+ break;
+
+ /* The command isn't understood by this engine */
+ default:
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_CTRL,
+ ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+ to_return = 0;
+ break;
+ }
+
+ return to_return;
+}
+
+/* Destructor (complements the "ENGINE_surewarehk()" constructor) */
+static int surewarehk_destroy(ENGINE *e)
+{
+ ERR_unload_SUREWARE_strings();
+ return 1;
+}
+
+/* (de)initialisation functions. */
+static int surewarehk_init(ENGINE *e)
+{
+ char msg[64]="ENGINE_init";
+ SureWareHook_Init_t *p1=NULL;
+ SureWareHook_Finish_t *p2=NULL;
+ SureWareHook_Rand_Bytes_t *p3=NULL;
+ SureWareHook_Rand_Seed_t *p4=NULL;
+ SureWareHook_Load_Privkey_t *p5=NULL;
+ SureWareHook_Load_Rsa_Pubkey_t *p6=NULL;
+ SureWareHook_Free_t *p7=NULL;
+ SureWareHook_Rsa_Priv_Dec_t *p8=NULL;
+ SureWareHook_Rsa_Sign_t *p9=NULL;
+ SureWareHook_Dsa_Sign_t *p12=NULL;
+ SureWareHook_Info_Pubkey_t *p13=NULL;
+ SureWareHook_Load_Dsa_Pubkey_t *p14=NULL;
+ SureWareHook_Mod_Exp_t *p15=NULL;
+
+ if(surewarehk_dso != NULL)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_ALREADY_LOADED);
+ goto err;
+ }
+ /* Attempt to load libsurewarehk.so/surewarehk.dll/whatever. */
+ surewarehk_dso = DSO_load(NULL, surewarehk_LIBNAME, NULL, 0);
+ if(surewarehk_dso == NULL)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_DSO_FAILURE);
+ goto err;
+ }
+ if(!(p1=(SureWareHook_Init_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Init)) ||
+ !(p2=(SureWareHook_Finish_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Finish)) ||
+ !(p3=(SureWareHook_Rand_Bytes_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rand_Bytes)) ||
+ !(p4=(SureWareHook_Rand_Seed_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rand_Seed)) ||
+ !(p5=(SureWareHook_Load_Privkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Privkey)) ||
+ !(p6=(SureWareHook_Load_Rsa_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Rsa_Pubkey)) ||
+ !(p7=(SureWareHook_Free_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Free)) ||
+ !(p8=(SureWareHook_Rsa_Priv_Dec_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rsa_Priv_Dec)) ||
+ !(p9=(SureWareHook_Rsa_Sign_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Rsa_Sign)) ||
+ !(p12=(SureWareHook_Dsa_Sign_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Dsa_Sign)) ||
+ !(p13=(SureWareHook_Info_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Info_Pubkey)) ||
+ !(p14=(SureWareHook_Load_Dsa_Pubkey_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Load_Dsa_Pubkey)) ||
+ !(p15=(SureWareHook_Mod_Exp_t*)DSO_bind_func(surewarehk_dso, n_surewarehk_Mod_Exp)))
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,ENGINE_R_DSO_FAILURE);
+ goto err;
+ }
+ /* Copy the pointers */
+ p_surewarehk_Init = p1;
+ p_surewarehk_Finish = p2;
+ p_surewarehk_Rand_Bytes = p3;
+ p_surewarehk_Rand_Seed = p4;
+ p_surewarehk_Load_Privkey = p5;
+ p_surewarehk_Load_Rsa_Pubkey = p6;
+ p_surewarehk_Free = p7;
+ p_surewarehk_Rsa_Priv_Dec = p8;
+ p_surewarehk_Rsa_Sign = p9;
+ p_surewarehk_Dsa_Sign = p12;
+ p_surewarehk_Info_Pubkey = p13;
+ p_surewarehk_Load_Dsa_Pubkey = p14;
+ p_surewarehk_Mod_Exp = p15;
+ /* Contact the hardware and initialises it. */
+ if(p_surewarehk_Init(msg,threadsafe)==SUREWAREHOOK_ERROR_UNIT_FAILURE)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,SUREWARE_R_UNIT_FAILURE);
+ goto err;
+ }
+ if(p_surewarehk_Init(msg,threadsafe)==SUREWAREHOOK_ERROR_UNIT_FAILURE)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_INIT,SUREWARE_R_UNIT_FAILURE);
+ goto err;
+ }
+ /* try to load the default private key, if failed does not return a failure but
+ wait for an explicit ENGINE_load_privakey */
+ surewarehk_load_privkey(e,NULL,NULL,NULL);
+
+ /* Everything's fine. */
+#ifndef OPENSSL_NO_RSA
+ if (rsaHndidx == -1)
+ rsaHndidx = RSA_get_ex_new_index(0,
+ "SureWareHook RSA key handle",
+ NULL, NULL, surewarehk_ex_free);
+#endif
+#ifndef OPENSSL_NO_DSA
+ if (dsaHndidx == -1)
+ dsaHndidx = DSA_get_ex_new_index(0,
+ "SureWareHook DSA key handle",
+ NULL, NULL, surewarehk_ex_free);
+#endif
+
+ return 1;
+err:
+ if(surewarehk_dso)
+ DSO_free(surewarehk_dso);
+ surewarehk_dso = NULL;
+ p_surewarehk_Init = NULL;
+ p_surewarehk_Finish = NULL;
+ p_surewarehk_Rand_Bytes = NULL;
+ p_surewarehk_Rand_Seed = NULL;
+ p_surewarehk_Load_Privkey = NULL;
+ p_surewarehk_Load_Rsa_Pubkey = NULL;
+ p_surewarehk_Free = NULL;
+ p_surewarehk_Rsa_Priv_Dec = NULL;
+ p_surewarehk_Rsa_Sign = NULL;
+ p_surewarehk_Dsa_Sign = NULL;
+ p_surewarehk_Info_Pubkey = NULL;
+ p_surewarehk_Load_Dsa_Pubkey = NULL;
+ p_surewarehk_Mod_Exp = NULL;
+ return 0;
+}
+
+static int surewarehk_finish(ENGINE *e)
+{
+ int to_return = 1;
+ if(surewarehk_dso == NULL)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_FINISH,ENGINE_R_NOT_LOADED);
+ to_return = 0;
+ goto err;
+ }
+ p_surewarehk_Finish();
+ if(!DSO_free(surewarehk_dso))
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_FINISH,ENGINE_R_DSO_FAILURE);
+ to_return = 0;
+ goto err;
+ }
+ err:
+ if (logstream)
+ BIO_free(logstream);
+ surewarehk_dso = NULL;
+ p_surewarehk_Init = NULL;
+ p_surewarehk_Finish = NULL;
+ p_surewarehk_Rand_Bytes = NULL;
+ p_surewarehk_Rand_Seed = NULL;
+ p_surewarehk_Load_Privkey = NULL;
+ p_surewarehk_Load_Rsa_Pubkey = NULL;
+ p_surewarehk_Free = NULL;
+ p_surewarehk_Rsa_Priv_Dec = NULL;
+ p_surewarehk_Rsa_Sign = NULL;
+ p_surewarehk_Dsa_Sign = NULL;
+ p_surewarehk_Info_Pubkey = NULL;
+ p_surewarehk_Load_Dsa_Pubkey = NULL;
+ p_surewarehk_Mod_Exp = NULL;
+ return to_return;
+}
+
+static void surewarehk_error_handling(char *const msg,int func,int ret)
+{
+ switch (ret)
+ {
+ case SUREWAREHOOK_ERROR_UNIT_FAILURE:
+ ENGINEerr(func,SUREWARE_R_UNIT_FAILURE);
+ break;
+ case SUREWAREHOOK_ERROR_FALLBACK:
+ ENGINEerr(func,SUREWARE_R_REQUEST_FALLBACK);
+ break;
+ case SUREWAREHOOK_ERROR_DATA_SIZE:
+ ENGINEerr(func,SUREWARE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
+ break;
+ case SUREWAREHOOK_ERROR_INVALID_PAD:
+ ENGINEerr(func,SUREWARE_R_PADDING_CHECK_FAILED);
+ break;
+ default:
+ ENGINEerr(func,SUREWARE_R_REQUEST_FAILED);
+ break;
+ case 1:/*nothing*/
+ msg[0]='\0';
+ }
+ if (*msg)
+ {
+ ERR_add_error_data(1,msg);
+ if (logstream)
+ {
+ CRYPTO_w_lock(CRYPTO_LOCK_BIO);
+ BIO_write(logstream, msg, strlen(msg));
+ CRYPTO_w_unlock(CRYPTO_LOCK_BIO);
+ }
+ }
+}
+
+static int surewarehk_rand_bytes(unsigned char *buf, int num)
+{
+ int ret=0;
+ char msg[64]="ENGINE_rand_bytes";
+ if(!p_surewarehk_Rand_Bytes)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RAND_BYTES,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ {
+ ret = p_surewarehk_Rand_Bytes(msg,buf, num);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RAND_BYTES,ret);
+ }
+ return ret==1 ? 1 : 0;
+}
+
+static void surewarehk_rand_seed(const void *buf, int num)
+{
+ int ret=0;
+ char msg[64]="ENGINE_rand_seed";
+ if(!p_surewarehk_Rand_Seed)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RAND_SEED,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ {
+ ret = p_surewarehk_Rand_Seed(msg,buf, num);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RAND_SEED,ret);
+ }
+}
+
+static void surewarehk_rand_add(const void *buf, int num, double entropy)
+{
+ surewarehk_rand_seed(buf,num);
+}
+
+static EVP_PKEY* sureware_load_public(ENGINE *e,const char *key_id,char *hptr,unsigned long el,char keytype)
+{
+ EVP_PKEY *res = NULL;
+#ifndef OPENSSL_NO_RSA
+ RSA *rsatmp = NULL;
+#endif
+#ifndef OPENSSL_NO_DSA
+ DSA *dsatmp=NULL;
+#endif
+ char msg[64]="sureware_load_public";
+ int ret=0;
+ if(!p_surewarehk_Load_Rsa_Pubkey || !p_surewarehk_Load_Dsa_Pubkey)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWARE_LOAD_PUBLIC,ENGINE_R_NOT_INITIALISED);
+ goto err;
+ }
+ switch (keytype)
+ {
+#ifndef OPENSSL_NO_RSA
+ case 1: /*RSA*/
+ /* set private external reference */
+ rsatmp = RSA_new_method(e);
+ RSA_set_ex_data(rsatmp,rsaHndidx,hptr);
+ rsatmp->flags |= RSA_FLAG_EXT_PKEY;
+
+ /* set public big nums*/
+ rsatmp->e = BN_new();
+ rsatmp->n = BN_new();
+ bn_expand2(rsatmp->e, el/sizeof(BN_ULONG));
+ bn_expand2(rsatmp->n, el/sizeof(BN_ULONG));
+ if (!rsatmp->e || rsatmp->e->dmax!=(int)(el/sizeof(BN_ULONG))||
+ !rsatmp->n || rsatmp->n->dmax!=(int)(el/sizeof(BN_ULONG)))
+ goto err;
+ ret=p_surewarehk_Load_Rsa_Pubkey(msg,key_id,el,
+ (unsigned long *)rsatmp->n->d,
+ (unsigned long *)rsatmp->e->d);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWARE_LOAD_PUBLIC,ret);
+ if (ret!=1)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWARE_LOAD_PUBLIC,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
+ goto err;
+ }
+ /* normalise pub e and pub n */
+ rsatmp->e->top=el/sizeof(BN_ULONG);
+ bn_fix_top(rsatmp->e);
+ rsatmp->n->top=el/sizeof(BN_ULONG);
+ bn_fix_top(rsatmp->n);
+ /* create an EVP object: engine + rsa key */
+ res = EVP_PKEY_new();
+ EVP_PKEY_assign_RSA(res, rsatmp);
+ break;
+#endif
+
+#ifndef OPENSSL_NO_DSA
+ case 2:/*DSA*/
+ /* set private/public external reference */
+ dsatmp = DSA_new_method(e);
+ DSA_set_ex_data(dsatmp,dsaHndidx,hptr);
+ /*dsatmp->flags |= DSA_FLAG_EXT_PKEY;*/
+
+ /* set public key*/
+ dsatmp->pub_key = BN_new();
+ dsatmp->p = BN_new();
+ dsatmp->q = BN_new();
+ dsatmp->g = BN_new();
+ bn_expand2(dsatmp->pub_key, el/sizeof(BN_ULONG));
+ bn_expand2(dsatmp->p, el/sizeof(BN_ULONG));
+ bn_expand2(dsatmp->q, 20/sizeof(BN_ULONG));
+ bn_expand2(dsatmp->g, el/sizeof(BN_ULONG));
+ if (!dsatmp->pub_key || dsatmp->pub_key->dmax!=(int)(el/sizeof(BN_ULONG))||
+ !dsatmp->p || dsatmp->p->dmax!=(int)(el/sizeof(BN_ULONG)) ||
+ !dsatmp->q || dsatmp->q->dmax!=20/sizeof(BN_ULONG) ||
+ !dsatmp->g || dsatmp->g->dmax!=(int)(el/sizeof(BN_ULONG)))
+ goto err;
+
+ ret=p_surewarehk_Load_Dsa_Pubkey(msg,key_id,el,
+ (unsigned long *)dsatmp->pub_key->d,
+ (unsigned long *)dsatmp->p->d,
+ (unsigned long *)dsatmp->q->d,
+ (unsigned long *)dsatmp->g->d);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWARE_LOAD_PUBLIC,ret);
+ if (ret!=1)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWARE_LOAD_PUBLIC,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
+ goto err;
+ }
+ /* set parameters */
+ /* normalise pubkey and parameters in case of */
+ dsatmp->pub_key->top=el/sizeof(BN_ULONG);
+ bn_fix_top(dsatmp->pub_key);
+ dsatmp->p->top=el/sizeof(BN_ULONG);
+ bn_fix_top(dsatmp->p);
+ dsatmp->q->top=20/sizeof(BN_ULONG);
+ bn_fix_top(dsatmp->q);
+ dsatmp->g->top=el/sizeof(BN_ULONG);
+ bn_fix_top(dsatmp->g);
+
+ /* create an EVP object: engine + rsa key */
+ res = EVP_PKEY_new();
+ EVP_PKEY_assign_DSA(res, dsatmp);
+ break;
+#endif
+
+ default:
+ SUREWAREerr(SUREWARE_F_SUREWARE_LOAD_PUBLIC,ENGINE_R_FAILED_LOADING_PRIVATE_KEY);
+ goto err;
+ }
+ return res;
+ err:
+#ifndef OPENSSL_NO_RSA
+ if (rsatmp)
+ RSA_free(rsatmp);
+#endif
+#ifndef OPENSSL_NO_DSA
+ if (dsatmp)
+ DSA_free(dsatmp);
+#endif
+ return NULL;
+}
+
+static EVP_PKEY *surewarehk_load_privkey(ENGINE *e, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data)
+{
+ EVP_PKEY *res = NULL;
+ int ret=0;
+ unsigned long el=0;
+ char *hptr=NULL;
+ char keytype=0;
+ char msg[64]="ENGINE_load_privkey";
+
+ if(!p_surewarehk_Load_Privkey)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVKEY,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ {
+ ret=p_surewarehk_Load_Privkey(msg,key_id,&hptr,&el,&keytype);
+ if (ret!=1)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PRIVKEY,ENGINE_R_FAILED_LOADING_PRIVATE_KEY);
+ ERR_add_error_data(1,msg);
+ }
+ else
+ res=sureware_load_public(e,key_id,hptr,el,keytype);
+ }
+ return res;
+}
+
+static EVP_PKEY *surewarehk_load_pubkey(ENGINE *e, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data)
+{
+ EVP_PKEY *res = NULL;
+ int ret=0;
+ unsigned long el=0;
+ char *hptr=NULL;
+ char keytype=0;
+ char msg[64]="ENGINE_load_pubkey";
+
+ if(!p_surewarehk_Info_Pubkey)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PUBKEY,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ {
+ /* call once to identify if DSA or RSA */
+ ret=p_surewarehk_Info_Pubkey(msg,key_id,&el,&keytype);
+ if (ret!=1)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_LOAD_PUBKEY,ENGINE_R_FAILED_LOADING_PUBLIC_KEY);
+ ERR_add_error_data(1,msg);
+ }
+ else
+ res=sureware_load_public(e,key_id,hptr,el,keytype);
+ }
+ return res;
+}
+
+/* This cleans up an RSA/DSA KM key(do not destroy the key into the hardware)
+, called when ex_data is freed */
+static void surewarehk_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
+ int idx,long argl, void *argp)
+{
+ if(!p_surewarehk_Free)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_EX_FREE,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ p_surewarehk_Free((char *)item,0);
+}
+
+#if 0
+/* not currently used (bug?) */
+/* This cleans up an DH KM key (destroys the key into hardware),
+called when ex_data is freed */
+static void surewarehk_dh_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
+ int idx,long argl, void *argp)
+{
+ if(!p_surewarehk_Free)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_DH_EX_FREE,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ p_surewarehk_Free((char *)item,1);
+}
+#endif
+
+/*
+* return number of decrypted bytes
+*/
+#ifndef OPENSSL_NO_RSA
+static int surewarehk_rsa_priv_dec(int flen,const unsigned char *from,unsigned char *to,
+ RSA *rsa,int padding)
+{
+ int ret=0,tlen;
+ char *buf=NULL,*hptr=NULL;
+ char msg[64]="ENGINE_rsa_priv_dec";
+ if (!p_surewarehk_Rsa_Priv_Dec)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ENGINE_R_NOT_INITIALISED);
+ }
+ /* extract ref to private key */
+ else if (!(hptr=RSA_get_ex_data(rsa, rsaHndidx)))
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,SUREWARE_R_MISSING_KEY_COMPONENTS);
+ goto err;
+ }
+ /* analyse what padding we can do into the hardware */
+ if (padding==RSA_PKCS1_PADDING)
+ {
+ /* do it one shot */
+ ret=p_surewarehk_Rsa_Priv_Dec(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_PKCS1_PAD);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ret);
+ if (ret!=1)
+ goto err;
+ ret=tlen;
+ }
+ else /* do with no padding into hardware */
+ {
+ ret=p_surewarehk_Rsa_Priv_Dec(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_NO_PAD);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ret);
+ if (ret!=1)
+ goto err;
+ /* intermediate buffer for padding */
+ if ((buf=OPENSSL_malloc(tlen)) == NULL)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ memcpy(buf,to,tlen);/* transfert to into buf */
+ switch (padding) /* check padding in software */
+ {
+#ifndef OPENSSL_NO_SHA
+ case RSA_PKCS1_OAEP_PADDING:
+ ret=RSA_padding_check_PKCS1_OAEP(to,tlen,(unsigned char *)buf,tlen,tlen,NULL,0);
+ break;
+#endif
+ case RSA_SSLV23_PADDING:
+ ret=RSA_padding_check_SSLv23(to,tlen,(unsigned char *)buf,flen,tlen);
+ break;
+ case RSA_NO_PADDING:
+ ret=RSA_padding_check_none(to,tlen,(unsigned char *)buf,flen,tlen);
+ break;
+ default:
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,SUREWARE_R_UNKNOWN_PADDING_TYPE);
+ goto err;
+ }
+ if (ret < 0)
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_PRIV_DEC,SUREWARE_R_PADDING_CHECK_FAILED);
+ }
+err:
+ if (buf)
+ {
+ OPENSSL_cleanse(buf,tlen);
+ OPENSSL_free(buf);
+ }
+ return ret;
+}
+
+/*
+* Does what OpenSSL rsa_priv_enc does.
+*/
+static int surewarehk_rsa_sign(int flen,const unsigned char *from,unsigned char *to,
+ RSA *rsa,int padding)
+{
+ int ret=0,tlen;
+ char *hptr=NULL;
+ char msg[64]="ENGINE_rsa_sign";
+ if (!p_surewarehk_Rsa_Sign)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_SIGN,ENGINE_R_NOT_INITIALISED);
+ }
+ /* extract ref to private key */
+ else if (!(hptr=RSA_get_ex_data(rsa, rsaHndidx)))
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);
+ }
+ else
+ {
+ switch (padding)
+ {
+ case RSA_PKCS1_PADDING: /* do it in one shot */
+ ret=p_surewarehk_Rsa_Sign(msg,flen,(unsigned char *)from,&tlen,to,hptr,SUREWARE_PKCS1_PAD);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_RSA_SIGN,ret);
+ break;
+ case RSA_NO_PADDING:
+ default:
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_RSA_SIGN,SUREWARE_R_UNKNOWN_PADDING_TYPE);
+ }
+ }
+ return ret==1 ? tlen : ret;
+}
+
+#endif
+
+#ifndef OPENSSL_NO_DSA
+/* DSA sign and verify */
+static DSA_SIG * surewarehk_dsa_do_sign(const unsigned char *from, int flen, DSA *dsa)
+{
+ int ret=0;
+ char *hptr=NULL;
+ DSA_SIG *psign=NULL;
+ char msg[64]="ENGINE_dsa_do_sign";
+ if (!p_surewarehk_Dsa_Sign)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ENGINE_R_NOT_INITIALISED);
+ goto err;
+ }
+ /* extract ref to private key */
+ else if (!(hptr=DSA_get_ex_data(dsa, dsaHndidx)))
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,SUREWARE_R_MISSING_KEY_COMPONENTS);
+ goto err;
+ }
+ else
+ {
+ if((psign = DSA_SIG_new()) == NULL)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ psign->r=BN_new();
+ psign->s=BN_new();
+ bn_expand2(psign->r, 20/sizeof(BN_ULONG));
+ bn_expand2(psign->s, 20/sizeof(BN_ULONG));
+ if (!psign->r || psign->r->dmax!=20/sizeof(BN_ULONG) ||
+ !psign->s || psign->s->dmax!=20/sizeof(BN_ULONG))
+ goto err;
+ ret=p_surewarehk_Dsa_Sign(msg,flen,from,
+ (unsigned long *)psign->r->d,
+ (unsigned long *)psign->s->d,
+ hptr);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_DSA_DO_SIGN,ret);
+ }
+ psign->r->top=20/sizeof(BN_ULONG);
+ bn_fix_top(psign->r);
+ psign->s->top=20/sizeof(BN_ULONG);
+ bn_fix_top(psign->s);
+
+err:
+ if (psign)
+ {
+ DSA_SIG_free(psign);
+ psign=NULL;
+ }
+ return psign;
+}
+#endif
+
+static int surewarehk_modexp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx)
+{
+ int ret=0;
+ char msg[64]="ENGINE_modexp";
+ if (!p_surewarehk_Mod_Exp)
+ {
+ SUREWAREerr(SUREWARE_F_SUREWAREHK_MODEXP,ENGINE_R_NOT_INITIALISED);
+ }
+ else
+ {
+ bn_expand2(r,m->top);
+ if (r && r->dmax==m->top)
+ {
+ /* do it*/
+ ret=p_surewarehk_Mod_Exp(msg,
+ m->top*sizeof(BN_ULONG),
+ (unsigned long *)m->d,
+ p->top*sizeof(BN_ULONG),
+ (unsigned long *)p->d,
+ a->top*sizeof(BN_ULONG),
+ (unsigned long *)a->d,
+ (unsigned long *)r->d);
+ surewarehk_error_handling(msg,SUREWARE_F_SUREWAREHK_MODEXP,ret);
+ if (ret==1)
+ {
+ /* normalise result */
+ r->top=m->top;
+ bn_fix_top(r);
+ }
+ }
+ }
+ return ret;
+}
+#endif /* !OPENSSL_NO_HW_SureWare */
+#endif /* !OPENSSL_NO_HW */
projects / cassiopeia.git / blobdiff