--- /dev/null
+/* crypto/engine/hw_ubsec.c */
+/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
+ * project 2000.
+ *
+ * Cloned shamelessly by Joe Tardo.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include <openssl/crypto.h>
+#include "cryptlib.h"
+#include <openssl/dso.h>
+#include "engine_int.h"
+#include <openssl/engine.h>
+
+#ifndef NO_HW
+#ifndef NO_HW_UBSEC
+
+#ifdef FLAT_INC
+#include "hw_ubsec.h"
+#else
+#include "vendor_defns/hw_ubsec.h"
+#endif
+
+static int ubsec_init(void);
+static int ubsec_finish(void);
+static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx);
+static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *q, const BIGNUM *dp,
+ const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx);
+static int ubsec_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
+static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+static int ubsec_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 ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx);
+static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
+static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
+ DSA_SIG *sig, DSA *dsa);
+static int ubsec_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);
+static int ubsec_dh_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
+static int ubsec_dh_generate_key(DH *dh);
+static int ubsec_rand_bytes(unsigned char *buf, int num);
+static int ubsec_rand_status(void);
+
+/* Our internal RSA_METHOD that we provide pointers to */
+
+static RSA_METHOD ubsec_rsa =
+ {
+ "UBSEC RSA method",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ ubsec_rsa_mod_exp,
+ ubsec_mod_exp_mont,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL,
+ NULL
+ };
+
+/* Our internal DSA_METHOD that we provide pointers to */
+static DSA_METHOD ubsec_dsa =
+ {
+ "UBSEC DSA method",
+ ubsec_dsa_do_sign, /* dsa_do_sign */
+ NULL, /* dsa_sign_setup */
+ ubsec_dsa_verify, /* dsa_do_verify */
+ NULL, /* ubsec_dsa_mod_exp */ /* dsa_mod_exp */
+ NULL, /* ubsec_mod_exp_dsa */ /* bn_mod_exp */
+ NULL, /* init */
+ NULL, /* finish */
+ 0, /* flags */
+ NULL /* app_data */
+ };
+
+/* Our internal DH_METHOD that we provide pointers to */
+static DH_METHOD ubsec_dh =
+ {
+ "UBSEC DH method",
+ ubsec_dh_generate_key,
+ ubsec_dh_compute_key,
+ ubsec_mod_exp_dh,
+ NULL,
+ NULL,
+ 0,
+ NULL
+ };
+
+/* Our ENGINE structure. */
+static ENGINE engine_ubsec =
+ {
+ "ubsec",
+ "UBSEC hardware engine support",
+ &ubsec_rsa,
+ &ubsec_dsa,
+ &ubsec_dh,
+ NULL,
+ ubsec_mod_exp,
+ ubsec_mod_exp_crt,
+ ubsec_init,
+ ubsec_finish,
+ NULL, /* no ctrl() */
+ NULL, /* no load_privkey() */
+ NULL, /* no load_pubkey() */
+ 0, /* no flags */
+ 0, 0, /* no references */
+ NULL, NULL /* unlinked */
+ };
+
+/* As this is only ever called once, there's no need for locking
+ * (indeed - the lock will already be held by our caller!!!) */
+ENGINE *ENGINE_ubsec()
+ {
+ const RSA_METHOD *meth1;
+#ifndef HAVE_UBSEC_DH
+ const DH_METHOD *meth3;
+#endif /* HAVE_UBSEC_DH */
+
+ /* We know that the "PKCS1_SSLeay()" functions hook properly
+ * to the Broadcom-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();
+ ubsec_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
+ ubsec_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
+ ubsec_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
+ ubsec_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
+
+#ifndef HAVE_UBSEC_DH
+ /* Much the same for Diffie-Hellman */
+ meth3 = DH_OpenSSL();
+ ubsec_dh.generate_key = meth3->generate_key;
+ ubsec_dh.compute_key = meth3->compute_key;
+#endif /* HAVE_UBSEC_DH */
+
+ return &engine_ubsec;
+ }
+
+/* This is a process-global DSO handle used for loading and unloading
+ * the UBSEC 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 *ubsec_dso = NULL;
+
+/* These are the function pointers that are (un)set when the library has
+ * successfully (un)loaded. */
+
+static t_UBSEC_ubsec_bytes_to_bits *p_UBSEC_ubsec_bytes_to_bits = NULL;
+static t_UBSEC_ubsec_bits_to_bytes *p_UBSEC_ubsec_bits_to_bytes = NULL;
+static t_UBSEC_ubsec_open *p_UBSEC_ubsec_open = NULL;
+static t_UBSEC_ubsec_close *p_UBSEC_ubsec_close = NULL;
+static t_UBSEC_diffie_hellman_generate_ioctl
+ *p_UBSEC_diffie_hellman_generate_ioctl = NULL;
+static t_UBSEC_diffie_hellman_agree_ioctl *p_UBSEC_diffie_hellman_agree_ioctl = NULL;
+static t_UBSEC_rsa_mod_exp_ioctl *p_UBSEC_rsa_mod_exp_ioctl = NULL;
+static t_UBSEC_rsa_mod_exp_crt_ioctl *p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
+static t_UBSEC_dsa_sign_ioctl *p_UBSEC_dsa_sign_ioctl = NULL;
+static t_UBSEC_dsa_verify_ioctl *p_UBSEC_dsa_verify_ioctl = NULL;
+static t_UBSEC_math_accelerate_ioctl *p_UBSEC_math_accelerate_ioctl = NULL;
+static t_UBSEC_rng_ioctl *p_UBSEC_rng_ioctl = NULL;
+
+/* (de)initialisation functions. */
+static int ubsec_init()
+ {
+ t_UBSEC_ubsec_bytes_to_bits *p1;
+ t_UBSEC_ubsec_bits_to_bytes *p2;
+ t_UBSEC_ubsec_open *p3;
+ t_UBSEC_ubsec_close *p4;
+ t_UBSEC_diffie_hellman_generate_ioctl *p5;
+ t_UBSEC_diffie_hellman_agree_ioctl *p6;
+ t_UBSEC_rsa_mod_exp_ioctl *p7;
+ t_UBSEC_rsa_mod_exp_crt_ioctl *p8;
+ t_UBSEC_dsa_sign_ioctl *p9;
+ t_UBSEC_dsa_verify_ioctl *p10;
+ t_UBSEC_math_accelerate_ioctl *p11;
+ t_UBSEC_rng_ioctl *p12;
+ int fd = 0;
+
+ if(ubsec_dso != NULL)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_ALREADY_LOADED);
+ goto err;
+ }
+ /*
+ * Attempt to load libubsec.so/ubsec.dll/whatever.
+ */
+ ubsec_dso = DSO_load(NULL, UBSEC_LIBNAME, NULL, 0);
+ if(ubsec_dso == NULL)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
+ goto err;
+ }
+
+ if (
+ !(p1 = (t_UBSEC_ubsec_bytes_to_bits *) DSO_bind_func(ubsec_dso, UBSEC_F1)) ||
+ !(p2 = (t_UBSEC_ubsec_bits_to_bytes *) DSO_bind_func(ubsec_dso, UBSEC_F2)) ||
+ !(p3 = (t_UBSEC_ubsec_open *) DSO_bind_func(ubsec_dso, UBSEC_F3)) ||
+ !(p4 = (t_UBSEC_ubsec_close *) DSO_bind_func(ubsec_dso, UBSEC_F4)) ||
+ !(p5 = (t_UBSEC_diffie_hellman_generate_ioctl *)
+ DSO_bind_func(ubsec_dso, UBSEC_F5)) ||
+ !(p6 = (t_UBSEC_diffie_hellman_agree_ioctl *)
+ DSO_bind_func(ubsec_dso, UBSEC_F6)) ||
+ !(p7 = (t_UBSEC_rsa_mod_exp_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F7)) ||
+ !(p8 = (t_UBSEC_rsa_mod_exp_crt_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F8)) ||
+ !(p9 = (t_UBSEC_dsa_sign_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F9)) ||
+ !(p10 = (t_UBSEC_dsa_verify_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F10)) ||
+ !(p11 = (t_UBSEC_math_accelerate_ioctl *)
+ DSO_bind_func(ubsec_dso, UBSEC_F11)) ||
+ !(p12 = (t_UBSEC_rng_ioctl *) DSO_bind_func(ubsec_dso, UBSEC_F12)))
+ {
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_DSO_FAILURE);
+ goto err;
+ }
+
+ /* Copy the pointers */
+ p_UBSEC_ubsec_bytes_to_bits = p1;
+ p_UBSEC_ubsec_bits_to_bytes = p2;
+ p_UBSEC_ubsec_open = p3;
+ p_UBSEC_ubsec_close = p4;
+ p_UBSEC_diffie_hellman_generate_ioctl = p5;
+ p_UBSEC_diffie_hellman_agree_ioctl = p6;
+ p_UBSEC_rsa_mod_exp_ioctl = p7;
+ p_UBSEC_rsa_mod_exp_crt_ioctl = p8;
+ p_UBSEC_dsa_sign_ioctl = p9;
+ p_UBSEC_dsa_verify_ioctl = p10;
+ p_UBSEC_math_accelerate_ioctl = p11;
+ p_UBSEC_rng_ioctl = p12;
+
+ /* Perform an open to see if there's actually any unit running. */
+ if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) > 0)
+ {
+ p_UBSEC_ubsec_close(fd);
+ return 1;
+ }
+ else
+ {
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
+ }
+
+err:
+ if(ubsec_dso)
+ DSO_free(ubsec_dso);
+ p_UBSEC_ubsec_bytes_to_bits = NULL;
+ p_UBSEC_ubsec_bits_to_bytes = NULL;
+ p_UBSEC_ubsec_open = NULL;
+ p_UBSEC_ubsec_close = NULL;
+ p_UBSEC_diffie_hellman_generate_ioctl = NULL;
+ p_UBSEC_diffie_hellman_agree_ioctl = NULL;
+ p_UBSEC_rsa_mod_exp_ioctl = NULL;
+ p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
+ p_UBSEC_dsa_sign_ioctl = NULL;
+ p_UBSEC_dsa_verify_ioctl = NULL;
+ p_UBSEC_math_accelerate_ioctl = NULL;
+ p_UBSEC_rng_ioctl = NULL;
+
+ return 0;
+ }
+
+static int ubsec_finish()
+ {
+ if(ubsec_dso == NULL)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_NOT_LOADED);
+ return 0;
+ }
+ if(!DSO_free(ubsec_dso))
+ {
+ ENGINEerr(ENGINE_F_UBSEC_FINISH, ENGINE_R_DSO_FAILURE);
+ return 0;
+ }
+ ubsec_dso = NULL;
+ p_UBSEC_ubsec_bytes_to_bits = NULL;
+ p_UBSEC_ubsec_bits_to_bytes = NULL;
+ p_UBSEC_ubsec_open = NULL;
+ p_UBSEC_ubsec_close = NULL;
+ p_UBSEC_diffie_hellman_generate_ioctl = NULL;
+ p_UBSEC_diffie_hellman_agree_ioctl = NULL;
+ p_UBSEC_rsa_mod_exp_ioctl = NULL;
+ p_UBSEC_rsa_mod_exp_crt_ioctl = NULL;
+ p_UBSEC_dsa_sign_ioctl = NULL;
+ p_UBSEC_dsa_verify_ioctl = NULL;
+ p_UBSEC_math_accelerate_ioctl = NULL;
+ p_UBSEC_rng_ioctl = NULL;
+ return 1;
+ }
+
+static int ubsec_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx)
+ {
+ int y_len = 0;
+ int fd;
+
+ if(ubsec_dso == NULL)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_NOT_LOADED);
+ return 0;
+ }
+
+ /* Check if hardware can't handle this argument. */
+ y_len = BN_num_bits(m);
+ if (y_len > 1024) {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
+ return 0;
+ }
+
+ if(!bn_wexpand(r, m->top))
+ {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_BN_EXPAND_FAIL);
+ return 0;
+ }
+ memset(r->d, 0, BN_num_bytes(m));
+
+ if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
+ fd = 0;
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
+ return 0;
+ }
+
+ if (p_UBSEC_rsa_mod_exp_ioctl(fd, (unsigned char *)a->d, BN_num_bits(a),
+ (unsigned char *)m->d, BN_num_bits(m), (unsigned char *)p->d,
+ BN_num_bits(p), (unsigned char *)r->d, &y_len) != 0)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ p_UBSEC_ubsec_close(fd);
+
+ r->top = (BN_num_bits(m)+BN_BITS2-1)/BN_BITS2;
+ return 1;
+ }
+
+static int ubsec_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)
+ {
+ ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP, ENGINE_R_MISSING_KEY_COMPONENTS);
+ goto err;
+ }
+
+ /*
+ * Do in software if argument is too large for hardware.
+ */
+ if ((BN_num_bits(rsa->p)+BN_num_bits(rsa->q)) > 1024) {
+ const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
+ to_return = (*meth->rsa_mod_exp)(r0, I, rsa);
+ } else {
+ to_return = ubsec_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;
+ }
+
+static int ubsec_mod_exp_crt(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *q, const BIGNUM *dp,
+ const BIGNUM *dq, const BIGNUM *qinv, BN_CTX *ctx)
+ {
+ int y_len,
+ m_len,
+ fd;
+
+ m_len = BN_num_bytes(p) + BN_num_bytes(q) + 1;
+ y_len = BN_num_bits(p) + BN_num_bits(q);
+
+ /* Check if hardware can't handle this argument. */
+ if (y_len > 1024) {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
+ return 0;
+ }
+
+ if (!bn_wexpand(r, p->top + q->top + 1)) {
+ ENGINEerr(ENGINE_F_UBSEC_RSA_MOD_EXP_CRT, ENGINE_R_BN_EXPAND_FAIL);
+ return 0;
+ }
+
+ if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
+ fd = 0;
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
+ return 0;
+ }
+
+ if (p_UBSEC_rsa_mod_exp_crt_ioctl(fd,
+ (unsigned char *)a->d, BN_num_bits(a),
+ (unsigned char *)qinv->d, BN_num_bits(qinv),
+ (unsigned char *)dp->d, BN_num_bits(dp),
+ (unsigned char *)p->d, BN_num_bits(p),
+ (unsigned char *)dq->d, BN_num_bits(dq),
+ (unsigned char *)q->d, BN_num_bits(q),
+ (unsigned char *)r->d, &y_len) != 0) {
+ ENGINEerr(ENGINE_F_UBSEC_MOD_EXP, ENGINE_R_REQUEST_FAILED);
+ return 0;
+ }
+
+ p_UBSEC_ubsec_close(fd);
+
+ r->top = (BN_num_bits(p) + BN_num_bits(q) + BN_BITS2 - 1)/BN_BITS2;
+ return 1;
+}
+
+static int ubsec_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 (!ubsec_mod_exp(rr,a1,p1,m,ctx)) goto end;
+ /* let t = a2 ^ p2 mod m */
+ if (!ubsec_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 ubsec_mod_exp_dsa(DSA *dsa, BIGNUM *r, BIGNUM *a,
+ const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx)
+ {
+ return ubsec_mod_exp(r, a, p, m, ctx);
+ }
+
+/*
+ * This function is aliased to mod_exp (with the mont stuff dropped).
+ */
+static int ubsec_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ int ret = 0;
+
+ /* Do in software if the key is too large for the hardware. */
+ if (BN_num_bits(m) > 1024) {
+ const RSA_METHOD *meth = RSA_PKCS1_SSLeay();
+ ret = (*meth->bn_mod_exp)(r, a, p, m, ctx, m_ctx);
+ } else {
+ ret = ubsec_mod_exp(r, a, p, m, ctx);
+ }
+
+ return ret;
+}
+
+/* This function is aliased to mod_exp (with the dh and mont dropped). */
+static int ubsec_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)
+ {
+ return ubsec_mod_exp(r, a, p, m, ctx);
+ }
+
+static DSA_SIG *ubsec_dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
+ {
+ DSA_SIG *to_return = NULL;
+ int s_len = 160, r_len = 160, d_len, fd;
+ BIGNUM m, *r=NULL, *s=NULL;
+
+ BN_init(&m);
+
+ s = BN_new();
+ r = BN_new();
+ if ((s == NULL) || (r==NULL))
+ goto err;
+
+ d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dlen);
+
+ if(!bn_wexpand(r, (160+BN_BITS2-1)/BN_BITS2) ||
+ (!bn_wexpand(s, (160+BN_BITS2-1)/BN_BITS2))) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+
+ if (BN_bin2bn(dgst,dlen,&m) == NULL) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+
+ if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
+ fd = 0;
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
+ return 0;
+ }
+
+ if (p_UBSEC_dsa_sign_ioctl(fd, 0, /* compute hash before signing */
+ (unsigned char *)dgst, d_len,
+ NULL, 0, /* compute random value */
+ (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
+ (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
+ (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
+ (unsigned char *)dsa->priv_key->d, BN_num_bits(dsa->priv_key),
+ (unsigned char *)r->d, &r_len,
+ (unsigned char *)s->d, &s_len ) != 0) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_REQUEST_FAILED);
+ goto err;
+ }
+
+ p_UBSEC_ubsec_close(fd);
+
+ r->top = (160+BN_BITS2-1)/BN_BITS2;
+ s->top = (160+BN_BITS2-1)/BN_BITS2;
+
+ to_return = DSA_SIG_new();
+ if(to_return == NULL) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_SIGN, ENGINE_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+
+ to_return->r = r;
+ to_return->s = s;
+
+err:
+ if (!to_return) {
+ if (r) BN_free(r);
+ if (s) BN_free(s);
+ }
+ BN_clear_free(&m);
+ return to_return;
+}
+
+static int ubsec_dsa_verify(const unsigned char *dgst, int dgst_len,
+ DSA_SIG *sig, DSA *dsa)
+ {
+ int v_len, d_len;
+ int to_return = 0;
+ int fd;
+ BIGNUM v;
+
+ BN_init(&v);
+
+ if(!bn_wexpand(&v, dsa->p->top)) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY ,ENGINE_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+
+ v_len = BN_num_bits(dsa->p);
+
+ d_len = p_UBSEC_ubsec_bytes_to_bits((unsigned char *)dgst, dgst_len);
+
+ if ((fd = p_UBSEC_ubsec_open(UBSEC_KEY_DEVICE_NAME)) <= 0) {
+ fd = 0;
+ ENGINEerr(ENGINE_F_UBSEC_INIT, ENGINE_R_UNIT_FAILURE);
+ return 0;
+ }
+
+ if (p_UBSEC_dsa_verify_ioctl(fd, 0, /* compute hash before signing */
+ (unsigned char *)dgst, d_len,
+ (unsigned char *)dsa->p->d, BN_num_bits(dsa->p),
+ (unsigned char *)dsa->q->d, BN_num_bits(dsa->q),
+ (unsigned char *)dsa->g->d, BN_num_bits(dsa->g),
+ (unsigned char *)dsa->pub_key->d, BN_num_bits(dsa->pub_key),
+ (unsigned char *)sig->r->d, BN_num_bits(sig->r),
+ (unsigned char *)sig->s->d, BN_num_bits(sig->s),
+ (unsigned char *)v.d, &v_len) != 0) {
+ ENGINEerr(ENGINE_F_UBSEC_DSA_VERIFY , ENGINE_R_REQUEST_FAILED);
+ goto err;
+ }
+
+ p_UBSEC_ubsec_close(fd);
+
+ to_return = 1;
+err:
+ BN_clear_free(&v);
+ return to_return;
+ }
+
+static int ubsec_dh_compute_key (unsigned char *key,const BIGNUM *pub_key,DH *dh)
+ {
+ return 0;
+ }
+
+static int ubsec_dh_generate_key (DH *dh)
+ {
+ return 0;
+ }
+
+static int ubsec_rand_bytes(unsigned char *buf, int num)
+ {
+ return 0;
+ }
+
+static int ubsec_rand_status(void)
+ {
+ return 0;
+ }
+
+#endif /* !NO_HW_UBSEC */
+#endif /* !NO_HW */
--- /dev/null
+/******************************************************************************
+ *
+ * Copyright 2000
+ * Broadcom Corporation
+ * 16215 Alton Parkway
+ * PO Box 57013
+ * Irvine CA 92619-7013
+ *
+ *****************************************************************************/
+/*
+ * Broadcom Corporation uBSec SDK
+ */
+/*
+ * Character device header file.
+ */
+/*
+ * Revision History:
+ *
+ * October 2000 JTT Created.
+ */
+
+#define MAX_PUBLIC_KEY_BITS (1024)
+#define MAX_PUBLIC_KEY_BYTES (1024/8)
+#define SHA_BIT_SIZE (160)
+#define MAX_CRYPTO_KEY_LENGTH 24
+#define MAX_MAC_KEY_LENGTH 64
+#define UBSEC_CRYPTO_DEVICE_NAME "/dev/ubscrypt"
+#define UBSEC_KEY_DEVICE_NAME "/dev/ubskey"
+
+/* Math command types. */
+#define UBSEC_MATH_MODADD 0x0001
+#define UBSEC_MATH_MODSUB 0x0002
+#define UBSEC_MATH_MODMUL 0x0004
+#define UBSEC_MATH_MODEXP 0x0008
+#define UBSEC_MATH_MODREM 0x0010
+#define UBSEC_MATH_MODINV 0x0020
+
+typedef long ubsec_MathCommand_t;
+typedef long ubsec_RNGCommand_t;
+
+typedef struct ubsec_crypto_context_s {
+ unsigned int flags;
+ unsigned char crypto[MAX_CRYPTO_KEY_LENGTH];
+ unsigned char auth[MAX_MAC_KEY_LENGTH];
+} ubsec_crypto_context_t, *ubsec_crypto_context_p;
+
+/*
+ * Predeclare the function pointer types that we dynamically load from the DSO.
+ */
+
+typedef int t_UBSEC_ubsec_bytes_to_bits(unsigned char *n, int bytes);
+
+typedef int t_UBSEC_ubsec_bits_to_bytes(int bits);
+
+typedef int t_UBSEC_ubsec_open(unsigned char *device);
+
+typedef int t_UBSEC_ubsec_close(int fd);
+
+typedef int t_UBSEC_diffie_hellman_generate_ioctl (int fd,
+ unsigned char *x, int *x_len, unsigned char *y, int *y_len,
+ unsigned char *g, int g_len, unsigned char *m, int m_len,
+ unsigned char *userX, int userX_len, int random_bits);
+
+typedef int t_UBSEC_diffie_hellman_agree_ioctl (int fd,
+ unsigned char *x, int x_len, unsigned char *y, int y_len,
+ unsigned char *m, int m_len, unsigned char *k, int *k_len);
+
+typedef int t_UBSEC_rsa_mod_exp_ioctl (int fd,
+ unsigned char *x, int x_len, unsigned char *m, int m_len,
+ unsigned char *e, int e_len, unsigned char *y, int *y_len);
+
+typedef int t_UBSEC_rsa_mod_exp_crt_ioctl (int fd,
+ unsigned char *x, int x_len, unsigned char *qinv, int qinv_len,
+ unsigned char *edq, int edq_len, unsigned char *q, int q_len,
+ unsigned char *edp, int edp_len, unsigned char *p, int p_len,
+ unsigned char *y, int *y_len);
+
+typedef int t_UBSEC_dsa_sign_ioctl (int fd,
+ int hash, unsigned char *data, int data_len,
+ unsigned char *rndom, int random_len,
+ unsigned char *p, int p_len, unsigned char *q, int q_len,
+ unsigned char *g, int g_len, unsigned char *key, int key_len,
+ unsigned char *r, int *r_len, unsigned char *s, int *s_len);
+
+typedef int t_UBSEC_dsa_verify_ioctl (int fd,
+ int hash, unsigned char *data, int data_len,
+ unsigned char *p, int p_len, unsigned char *q, int q_len,
+ unsigned char *g, int g_len, unsigned char *key, int key_len,
+ unsigned char *r, int r_len, unsigned char *s, int s_len,
+ unsigned char *v, int *v_len);
+
+typedef int t_UBSEC_math_accelerate_ioctl(int fd, ubsec_MathCommand_t command,
+ unsigned char *ModN, int *ModN_len, unsigned char *ExpE, int *ExpE_len,
+ unsigned char *ParamA, int *ParamA_len, unsigned char *ParamB, int *ParamB_len,
+ unsigned char *Result, int *Result_len);
+
+typedef int t_UBSEC_rng_ioctl(int fd, ubsec_RNGCommand_t command,
+ unsigned char *Result, int *Result_len);
+
+
+/*
+ * These are the static string constants for the DSO file name and the function
+ * symbol names to bind to.
+ */
+
+#define UBSEC_LIBNAME "ubsec"
+
+#define UBSEC_F1 "ubsec_bytes_to_bits"
+#define UBSEC_F2 "ubsec_bits_to_bytes"
+#define UBSEC_F3 "ubsec_open"
+#define UBSEC_F4 "ubsec_close"
+#define UBSEC_F5 "diffie_hellman_generate_ioctl"
+#define UBSEC_F6 "diffie_hellman_agree_ioctl"
+#define UBSEC_F7 "rsa_mod_exp_ioctl"
+#define UBSEC_F8 "rsa_mod_exp_crt_ioctl"
+#define UBSEC_F9 "dsa_sign_ioctl"
+#define UBSEC_F10 "dsa_verify_ioctl"
+#define UBSEC_F11 "math_accelerate_ioctl"
+#define UBSEC_F12 "rng_ioctl"
+
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