/* crypto/engine/hw_cswift.c */
-/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
- * project 2000.
+/*
+ * Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL project
+ * 2000.
*/
/* ====================================================================
* Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
#include <openssl/buffer.h>
#include <openssl/dso.h>
#include <openssl/engine.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/rand.h>
+#include <openssl/bn.h>
#ifndef OPENSSL_NO_HW
-#ifndef OPENSSL_NO_HW_CSWIFT
-
-/* Attribution notice: Rainbow have generously allowed me to reproduce
- * the necessary definitions here from their API. This means the support
- * can build independently of whether application builders have the
- * API or hardware. This will allow developers to easily produce software
- * that has latent hardware support for any users that have accelerators
- * installed, without the developers themselves needing anything extra.
- *
- * I have only clipped the parts from the CryptoSwift header files that
- * are (or seem) relevant to the CryptoSwift support code. This is
- * simply to keep the file sizes reasonable.
- * [Geoff]
+# ifndef OPENSSL_NO_HW_CSWIFT
+
+/*
+ * Attribution notice: Rainbow have generously allowed me to reproduce the
+ * necessary definitions here from their API. This means the support can
+ * build independently of whether application builders have the API or
+ * hardware. This will allow developers to easily produce software that has
+ * latent hardware support for any users that have accelerators installed,
+ * without the developers themselves needing anything extra. I have only
+ * clipped the parts from the CryptoSwift header files that are (or seem)
+ * relevant to the CryptoSwift support code. This is simply to keep the file
+ * sizes reasonable. [Geoff]
*/
-#ifdef FLAT_INC
-#include "cswift.h"
-#else
-#include "vendor_defns/cswift.h"
-#endif
+# ifdef FLAT_INC
+# include "cswift.h"
+# else
+# include "vendor_defns/cswift.h"
+# endif
-#define CSWIFT_LIB_NAME "cswift engine"
-#include "e_cswift_err.c"
+# define CSWIFT_LIB_NAME "cswift engine"
+# include "e_cswift_err.c"
-#define DECIMAL_SIZE(type) ((sizeof(type)*8+2)/3+1)
+# define DECIMAL_SIZE(type) ((sizeof(type)*8+2)/3+1)
static int cswift_destroy(ENGINE *e);
static int cswift_init(ENGINE *e);
static int cswift_finish(ENGINE *e);
-static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
+static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void));
+# ifndef OPENSSL_NO_RSA
+static int cswift_bn_32copy(SW_LARGENUMBER *out, const BIGNUM *in);
+# endif
/* BIGNUM stuff */
static int cswift_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx);
+ const BIGNUM *m, BN_CTX *ctx);
+# ifndef OPENSSL_NO_RSA
static int cswift_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);
+ const BIGNUM *q, const BIGNUM *dmp1,
+ const BIGNUM *dmq1, const BIGNUM *iqmp,
+ BN_CTX *ctx);
+# endif
-#ifndef OPENSSL_NO_RSA
+# ifndef OPENSSL_NO_RSA
/* RSA stuff */
-static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
-#endif
+static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
+ BN_CTX *ctx);
/* This function is aliased to mod_exp (with the mont stuff dropped). */
static int cswift_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+ const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx);
+# endif
-#ifndef OPENSSL_NO_DSA
+# ifndef OPENSSL_NO_DSA
/* DSA stuff */
-static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa);
+static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen,
+ DSA *dsa);
static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len,
- DSA_SIG *sig, DSA *dsa);
-#endif
+ DSA_SIG *sig, DSA *dsa);
+# endif
-#ifndef OPENSSL_NO_DH
+# ifndef OPENSSL_NO_DH
/* DH stuff */
/* This function is alised to mod_exp (with the DH and mont dropped). */
static int cswift_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
+ const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx);
+# endif
/* RAND stuff */
static int cswift_rand_bytes(unsigned char *buf, int num);
static int cswift_rand_status(void);
/* The definitions for control commands specific to this engine */
-#define CSWIFT_CMD_SO_PATH ENGINE_CMD_BASE
+# define CSWIFT_CMD_SO_PATH ENGINE_CMD_BASE
static const ENGINE_CMD_DEFN cswift_cmd_defns[] = {
- {CSWIFT_CMD_SO_PATH,
- "SO_PATH",
- "Specifies the path to the 'cswift' shared library",
- ENGINE_CMD_FLAG_STRING},
- {0, NULL, NULL, 0}
- };
+ {CSWIFT_CMD_SO_PATH,
+ "SO_PATH",
+ "Specifies the path to the 'cswift' shared library",
+ ENGINE_CMD_FLAG_STRING},
+ {0, NULL, NULL, 0}
+};
-#ifndef OPENSSL_NO_RSA
+# ifndef OPENSSL_NO_RSA
/* Our internal RSA_METHOD that we provide pointers to */
-static RSA_METHOD cswift_rsa =
- {
- "CryptoSwift RSA method",
- NULL,
- NULL,
- NULL,
- NULL,
- cswift_rsa_mod_exp,
- cswift_mod_exp_mont,
- NULL,
- NULL,
- 0,
- NULL,
- NULL,
- NULL,
- NULL
- };
-#endif
+static RSA_METHOD cswift_rsa = {
+ "CryptoSwift RSA method",
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+ cswift_rsa_mod_exp,
+ cswift_mod_exp_mont,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+};
+# endif
-#ifndef OPENSSL_NO_DSA
+# ifndef OPENSSL_NO_DSA
/* Our internal DSA_METHOD that we provide pointers to */
-static DSA_METHOD cswift_dsa =
- {
- "CryptoSwift DSA method",
- cswift_dsa_sign,
- NULL, /* dsa_sign_setup */
- cswift_dsa_verify,
- NULL, /* dsa_mod_exp */
- NULL, /* bn_mod_exp */
- NULL, /* init */
- NULL, /* finish */
- 0, /* flags */
- NULL, /* app_data */
- NULL, /* dsa_paramgen */
- NULL /* dsa_keygen */
- };
-#endif
+static DSA_METHOD cswift_dsa = {
+ "CryptoSwift DSA method",
+ cswift_dsa_sign,
+ NULL, /* dsa_sign_setup */
+ cswift_dsa_verify,
+ NULL, /* dsa_mod_exp */
+ NULL, /* bn_mod_exp */
+ NULL, /* init */
+ NULL, /* finish */
+ 0, /* flags */
+ NULL, /* app_data */
+ NULL, /* dsa_paramgen */
+ NULL /* dsa_keygen */
+};
+# endif
-#ifndef OPENSSL_NO_DH
+# ifndef OPENSSL_NO_DH
/* Our internal DH_METHOD that we provide pointers to */
-static DH_METHOD cswift_dh =
- {
- "CryptoSwift DH method",
- NULL,
- NULL,
- cswift_mod_exp_dh,
- NULL,
- NULL,
- 0,
- NULL,
- NULL
- };
-#endif
+static DH_METHOD cswift_dh = {
+ "CryptoSwift DH method",
+ NULL,
+ NULL,
+ cswift_mod_exp_dh,
+ NULL,
+ NULL,
+ 0,
+ NULL,
+ NULL
+};
+# endif
-static RAND_METHOD cswift_random =
- {
+static RAND_METHOD cswift_random = {
/* "CryptoSwift RAND method", */
NULL,
cswift_rand_bytes,
NULL,
cswift_rand_bytes,
cswift_rand_status,
- };
-
+};
/* Constants used when creating the ENGINE */
static const char *engine_cswift_id = "cswift";
static const char *engine_cswift_name = "CryptoSwift hardware engine support";
-/* This internal function is used by ENGINE_cswift() and possibly by the
- * "dynamic" ENGINE support too */
+/*
+ * This internal function is used by ENGINE_cswift() 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_DH
- const DH_METHOD *meth2;
-#endif
- if(!ENGINE_set_id(e, engine_cswift_id) ||
- !ENGINE_set_name(e, engine_cswift_name) ||
-#ifndef OPENSSL_NO_RSA
- !ENGINE_set_RSA(e, &cswift_rsa) ||
-#endif
-#ifndef OPENSSL_NO_DSA
- !ENGINE_set_DSA(e, &cswift_dsa) ||
-#endif
-#ifndef OPENSSL_NO_DH
- !ENGINE_set_DH(e, &cswift_dh) ||
-#endif
- !ENGINE_set_RAND(e, &cswift_random) ||
- !ENGINE_set_destroy_function(e, cswift_destroy) ||
- !ENGINE_set_init_function(e, cswift_init) ||
- !ENGINE_set_finish_function(e, cswift_finish) ||
- !ENGINE_set_ctrl_function(e, cswift_ctrl) ||
- !ENGINE_set_cmd_defns(e, cswift_cmd_defns))
- return 0;
+{
+# ifndef OPENSSL_NO_RSA
+ const RSA_METHOD *meth1;
+# endif
+# ifndef OPENSSL_NO_DH
+ const DH_METHOD *meth2;
+# endif
+ if (!ENGINE_set_id(e, engine_cswift_id) ||
+ !ENGINE_set_name(e, engine_cswift_name) ||
+# ifndef OPENSSL_NO_RSA
+ !ENGINE_set_RSA(e, &cswift_rsa) ||
+# endif
+# ifndef OPENSSL_NO_DSA
+ !ENGINE_set_DSA(e, &cswift_dsa) ||
+# endif
+# ifndef OPENSSL_NO_DH
+ !ENGINE_set_DH(e, &cswift_dh) ||
+# endif
+ !ENGINE_set_RAND(e, &cswift_random) ||
+ !ENGINE_set_destroy_function(e, cswift_destroy) ||
+ !ENGINE_set_init_function(e, cswift_init) ||
+ !ENGINE_set_finish_function(e, cswift_finish) ||
+ !ENGINE_set_ctrl_function(e, cswift_ctrl) ||
+ !ENGINE_set_cmd_defns(e, cswift_cmd_defns))
+ 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();
- cswift_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
- cswift_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
- cswift_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
- cswift_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
-#endif
+# 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();
+ cswift_rsa.rsa_pub_enc = meth1->rsa_pub_enc;
+ cswift_rsa.rsa_pub_dec = meth1->rsa_pub_dec;
+ cswift_rsa.rsa_priv_enc = meth1->rsa_priv_enc;
+ cswift_rsa.rsa_priv_dec = meth1->rsa_priv_dec;
+# endif
-#ifndef OPENSSL_NO_DH
- /* Much the same for Diffie-Hellman */
- meth2 = DH_OpenSSL();
- cswift_dh.generate_key = meth2->generate_key;
- cswift_dh.compute_key = meth2->compute_key;
-#endif
+# ifndef OPENSSL_NO_DH
+ /* Much the same for Diffie-Hellman */
+ meth2 = DH_OpenSSL();
+ cswift_dh.generate_key = meth2->generate_key;
+ cswift_dh.compute_key = meth2->compute_key;
+# endif
- /* Ensure the cswift error handling is set up */
- ERR_load_CSWIFT_strings();
- return 1;
- }
+ /* Ensure the cswift error handling is set up */
+ ERR_load_CSWIFT_strings();
+ return 1;
+}
-#ifdef OPENSSL_NO_DYNAMIC_ENGINE
+# ifdef OPENSSL_NO_DYNAMIC_ENGINE
static ENGINE *engine_cswift(void)
- {
- ENGINE *ret = ENGINE_new();
- if(!ret)
- return NULL;
- if(!bind_helper(ret))
- {
- ENGINE_free(ret);
- return NULL;
- }
- return ret;
- }
+{
+ ENGINE *ret = ENGINE_new();
+ if (!ret)
+ return NULL;
+ if (!bind_helper(ret)) {
+ ENGINE_free(ret);
+ return NULL;
+ }
+ return ret;
+}
void ENGINE_load_cswift(void)
- {
- /* Copied from eng_[openssl|dyn].c */
- ENGINE *toadd = engine_cswift();
- if(!toadd) return;
- ENGINE_add(toadd);
- ENGINE_free(toadd);
- ERR_clear_error();
- }
-#endif
+{
+ /* Copied from eng_[openssl|dyn].c */
+ ENGINE *toadd = engine_cswift();
+ 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 CryptoSwift 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. */
+/*
+ * This is a process-global DSO handle used for loading and unloading the
+ * CryptoSwift 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 *cswift_dso = NULL;
-/* These are the function pointers that are (un)set when the library has
- * successfully (un)loaded. */
+/*
+ * These are the function pointers that are (un)set when the library has
+ * successfully (un)loaded.
+ */
t_swAcquireAccContext *p_CSwift_AcquireAccContext = NULL;
t_swAttachKeyParam *p_CSwift_AttachKeyParam = NULL;
t_swSimpleRequest *p_CSwift_SimpleRequest = NULL;
/* Used in the DSO operations. */
static const char *CSWIFT_LIBNAME = NULL;
static const char *get_CSWIFT_LIBNAME(void)
- {
- if(CSWIFT_LIBNAME)
- return CSWIFT_LIBNAME;
- return "swift";
- }
+{
+ if (CSWIFT_LIBNAME)
+ return CSWIFT_LIBNAME;
+ return "swift";
+}
+
static void free_CSWIFT_LIBNAME(void)
- {
- if(CSWIFT_LIBNAME)
- OPENSSL_free((void*)CSWIFT_LIBNAME);
- CSWIFT_LIBNAME = NULL;
- }
+{
+ if (CSWIFT_LIBNAME)
+ OPENSSL_free((void *)CSWIFT_LIBNAME);
+ CSWIFT_LIBNAME = NULL;
+}
+
static long set_CSWIFT_LIBNAME(const char *name)
- {
- free_CSWIFT_LIBNAME();
- return (((CSWIFT_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
- }
+{
+ free_CSWIFT_LIBNAME();
+ return (((CSWIFT_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0);
+}
+
static const char *CSWIFT_F1 = "swAcquireAccContext";
static const char *CSWIFT_F2 = "swAttachKeyParam";
static const char *CSWIFT_F3 = "swSimpleRequest";
static const char *CSWIFT_F4 = "swReleaseAccContext";
-
-/* CryptoSwift 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. */
+/*
+ * CryptoSwift 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(SW_CONTEXT_HANDLE *hac)
- {
- SW_STATUS status;
-
- status = p_CSwift_AcquireAccContext(hac);
- if(status != SW_OK)
- return 0;
- return 1;
- }
-
+{
+ SW_STATUS status;
+
+ status = p_CSwift_AcquireAccContext(hac);
+ if (status != SW_OK)
+ return 0;
+ return 1;
+}
+
/* similarly to release one. */
static void release_context(SW_CONTEXT_HANDLE hac)
- {
- p_CSwift_ReleaseAccContext(hac);
- }
+{
+ p_CSwift_ReleaseAccContext(hac);
+}
/* Destructor (complements the "ENGINE_cswift()" constructor) */
static int cswift_destroy(ENGINE *e)
- {
- free_CSWIFT_LIBNAME();
- ERR_unload_CSWIFT_strings();
- return 1;
- }
+{
+ free_CSWIFT_LIBNAME();
+ ERR_unload_CSWIFT_strings();
+ return 1;
+}
/* (de)initialisation functions. */
static int cswift_init(ENGINE *e)
- {
- SW_CONTEXT_HANDLE hac;
- t_swAcquireAccContext *p1;
- t_swAttachKeyParam *p2;
- t_swSimpleRequest *p3;
- t_swReleaseAccContext *p4;
-
- if(cswift_dso != NULL)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_ALREADY_LOADED);
- goto err;
- }
- /* Attempt to load libswift.so/swift.dll/whatever. */
- cswift_dso = DSO_load(NULL, get_CSWIFT_LIBNAME(), NULL, 0);
- if(cswift_dso == NULL)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_NOT_LOADED);
- goto err;
- }
- if(!(p1 = (t_swAcquireAccContext *)
- DSO_bind_func(cswift_dso, CSWIFT_F1)) ||
- !(p2 = (t_swAttachKeyParam *)
- DSO_bind_func(cswift_dso, CSWIFT_F2)) ||
- !(p3 = (t_swSimpleRequest *)
- DSO_bind_func(cswift_dso, CSWIFT_F3)) ||
- !(p4 = (t_swReleaseAccContext *)
- DSO_bind_func(cswift_dso, CSWIFT_F4)))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_NOT_LOADED);
- goto err;
- }
- /* Copy the pointers */
- p_CSwift_AcquireAccContext = p1;
- p_CSwift_AttachKeyParam = p2;
- p_CSwift_SimpleRequest = p3;
- p_CSwift_ReleaseAccContext = p4;
- /* Try and get a context - if not, we may have a DSO but no
- * accelerator! */
- if(!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_INIT,CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- release_context(hac);
- /* Everything's fine. */
- return 1;
-err:
- if(cswift_dso)
- DSO_free(cswift_dso);
- p_CSwift_AcquireAccContext = NULL;
- p_CSwift_AttachKeyParam = NULL;
- p_CSwift_SimpleRequest = NULL;
- p_CSwift_ReleaseAccContext = NULL;
- return 0;
- }
+{
+ SW_CONTEXT_HANDLE hac;
+ t_swAcquireAccContext *p1;
+ t_swAttachKeyParam *p2;
+ t_swSimpleRequest *p3;
+ t_swReleaseAccContext *p4;
+
+ if (cswift_dso != NULL) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_INIT, CSWIFT_R_ALREADY_LOADED);
+ goto err;
+ }
+ /* Attempt to load libswift.so/swift.dll/whatever. */
+ cswift_dso = DSO_load(NULL, get_CSWIFT_LIBNAME(), NULL, 0);
+ if (cswift_dso == NULL) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_INIT, CSWIFT_R_NOT_LOADED);
+ goto err;
+ }
+ if (!(p1 = (t_swAcquireAccContext *)
+ DSO_bind_func(cswift_dso, CSWIFT_F1)) ||
+ !(p2 = (t_swAttachKeyParam *)
+ DSO_bind_func(cswift_dso, CSWIFT_F2)) ||
+ !(p3 = (t_swSimpleRequest *)
+ DSO_bind_func(cswift_dso, CSWIFT_F3)) ||
+ !(p4 = (t_swReleaseAccContext *)
+ DSO_bind_func(cswift_dso, CSWIFT_F4))) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_INIT, CSWIFT_R_NOT_LOADED);
+ goto err;
+ }
+ /* Copy the pointers */
+ p_CSwift_AcquireAccContext = p1;
+ p_CSwift_AttachKeyParam = p2;
+ p_CSwift_SimpleRequest = p3;
+ p_CSwift_ReleaseAccContext = p4;
+ /*
+ * Try and get a context - if not, we may have a DSO but no accelerator!
+ */
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_INIT, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ release_context(hac);
+ /* Everything's fine. */
+ return 1;
+ err:
+ if (cswift_dso) {
+ DSO_free(cswift_dso);
+ cswift_dso = NULL;
+ }
+ p_CSwift_AcquireAccContext = NULL;
+ p_CSwift_AttachKeyParam = NULL;
+ p_CSwift_SimpleRequest = NULL;
+ p_CSwift_ReleaseAccContext = NULL;
+ return 0;
+}
static int cswift_finish(ENGINE *e)
- {
- free_CSWIFT_LIBNAME();
- if(cswift_dso == NULL)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_FINISH,CSWIFT_R_NOT_LOADED);
- return 0;
- }
- if(!DSO_free(cswift_dso))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_FINISH,CSWIFT_R_UNIT_FAILURE);
- return 0;
- }
- cswift_dso = NULL;
- p_CSwift_AcquireAccContext = NULL;
- p_CSwift_AttachKeyParam = NULL;
- p_CSwift_SimpleRequest = NULL;
- p_CSwift_ReleaseAccContext = NULL;
- return 1;
- }
-
-static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
- {
- int initialised = ((cswift_dso == NULL) ? 0 : 1);
- switch(cmd)
- {
- case CSWIFT_CMD_SO_PATH:
- if(p == NULL)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,ERR_R_PASSED_NULL_PARAMETER);
- return 0;
- }
- if(initialised)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,CSWIFT_R_ALREADY_LOADED);
- return 0;
- }
- return set_CSWIFT_LIBNAME((const char *)p);
- default:
- break;
- }
- CSWIFTerr(CSWIFT_F_CSWIFT_CTRL,CSWIFT_R_CTRL_COMMAND_NOT_IMPLEMENTED);
- return 0;
- }
+{
+ free_CSWIFT_LIBNAME();
+ if (cswift_dso == NULL) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_FINISH, CSWIFT_R_NOT_LOADED);
+ return 0;
+ }
+ if (!DSO_free(cswift_dso)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_FINISH, CSWIFT_R_UNIT_FAILURE);
+ return 0;
+ }
+ cswift_dso = NULL;
+ p_CSwift_AcquireAccContext = NULL;
+ p_CSwift_AttachKeyParam = NULL;
+ p_CSwift_SimpleRequest = NULL;
+ p_CSwift_ReleaseAccContext = NULL;
+ return 1;
+}
+
+static int cswift_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
+{
+ int initialised = ((cswift_dso == NULL) ? 0 : 1);
+ switch (cmd) {
+ case CSWIFT_CMD_SO_PATH:
+ if (p == NULL) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, ERR_R_PASSED_NULL_PARAMETER);
+ return 0;
+ }
+ if (initialised) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_ALREADY_LOADED);
+ return 0;
+ }
+ return set_CSWIFT_LIBNAME((const char *)p);
+ default:
+ break;
+ }
+ CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+ return 0;
+}
/* Un petit mod_exp */
static int cswift_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 CryptoSwift 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 *modulus;
- BIGNUM *exponent;
- BIGNUM *argument;
- BIGNUM *result;
- SW_STATUS sw_status;
- SW_LARGENUMBER arg, res;
- SW_PARAM sw_param;
- SW_CONTEXT_HANDLE hac;
- int to_return, acquired;
-
- modulus = exponent = argument = result = NULL;
- to_return = 0; /* expect failure */
- acquired = 0;
-
- if(!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- acquired = 1;
- /* Prepare the params */
- BN_CTX_start(ctx);
- modulus = BN_CTX_get(ctx);
- exponent = BN_CTX_get(ctx);
- argument = BN_CTX_get(ctx);
- result = BN_CTX_get(ctx);
- if(!result)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BN_CTX_FULL);
- goto err;
- }
- if(!bn_wexpand(modulus, m->top) || !bn_wexpand(exponent, p->top) ||
- !bn_wexpand(argument, a->top) || !bn_wexpand(result, m->top))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BN_EXPAND_FAIL);
- goto err;
- }
- sw_param.type = SW_ALG_EXP;
- sw_param.up.exp.modulus.nbytes = BN_bn2bin(m,
- (unsigned char *)modulus->d);
- sw_param.up.exp.modulus.value = (unsigned char *)modulus->d;
- sw_param.up.exp.exponent.nbytes = BN_bn2bin(p,
- (unsigned char *)exponent->d);
- sw_param.up.exp.exponent.value = (unsigned char *)exponent->d;
- /* Attach the key params */
- sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
- switch(sw_status)
- {
- case SW_OK:
- break;
- case SW_ERR_INPUT_SIZE:
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_BAD_KEY_SIZE);
- goto err;
- default:
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- }
- goto err;
- }
- /* Prepare the argument and response */
- arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
- arg.value = (unsigned char *)argument->d;
- res.nbytes = BN_num_bytes(m);
- memset(result->d, 0, res.nbytes);
- res.value = (unsigned char *)result->d;
- /* Perform the operation */
- if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP, &arg, 1,
- &res, 1)) != SW_OK)
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- goto err;
- }
- /* Convert the response */
- BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
- to_return = 1;
-err:
- if(acquired)
- release_context(hac);
- BN_CTX_end(ctx);
- return to_return;
- }
+ const BIGNUM *m, BN_CTX *ctx)
+{
+ /*
+ * I need somewhere to store temporary serialised values for use with the
+ * CryptoSwift 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 *modulus;
+ BIGNUM *exponent;
+ BIGNUM *argument;
+ BIGNUM *result;
+ SW_STATUS sw_status;
+ SW_LARGENUMBER arg, res;
+ SW_PARAM sw_param;
+ SW_CONTEXT_HANDLE hac;
+ int to_return, acquired;
+ modulus = exponent = argument = result = NULL;
+ to_return = 0; /* expect failure */
+ acquired = 0;
+
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ acquired = 1;
+ /* Prepare the params */
+ BN_CTX_start(ctx);
+ modulus = BN_CTX_get(ctx);
+ exponent = BN_CTX_get(ctx);
+ argument = BN_CTX_get(ctx);
+ result = BN_CTX_get(ctx);
+ if (!result) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_BN_CTX_FULL);
+ goto err;
+ }
+ if (!bn_wexpand(modulus, m->top) || !bn_wexpand(exponent, p->top) ||
+ !bn_wexpand(argument, a->top) || !bn_wexpand(result, m->top)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ sw_param.type = SW_ALG_EXP;
+ sw_param.up.exp.modulus.nbytes = BN_bn2bin(m,
+ (unsigned char *)modulus->d);
+ sw_param.up.exp.modulus.value = (unsigned char *)modulus->d;
+ sw_param.up.exp.exponent.nbytes = BN_bn2bin(p,
+ (unsigned char *)exponent->d);
+ sw_param.up.exp.exponent.value = (unsigned char *)exponent->d;
+ /* Attach the key params */
+ sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
+ switch (sw_status) {
+ case SW_OK:
+ break;
+ case SW_ERR_INPUT_SIZE:
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_BAD_KEY_SIZE);
+ goto err;
+ default:
+ {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ }
+ goto err;
+ }
+ /* Prepare the argument and response */
+ arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
+ arg.value = (unsigned char *)argument->d;
+ res.nbytes = BN_num_bytes(m);
+ memset(result->d, 0, res.nbytes);
+ res.value = (unsigned char *)result->d;
+ /* Perform the operation */
+ if ((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP, &arg, 1,
+ &res, 1)) != SW_OK) {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ /* Convert the response */
+ BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
+ to_return = 1;
+ err:
+ if (acquired)
+ release_context(hac);
+ BN_CTX_end(ctx);
+ return to_return;
+}
+
+# ifndef OPENSSL_NO_RSA
+int cswift_bn_32copy(SW_LARGENUMBER *out, const BIGNUM *in)
+{
+ int mod;
+ int numbytes = BN_num_bytes(in);
+
+ mod = 0;
+ while (((out->nbytes = (numbytes + mod)) % 32)) {
+ mod++;
+ }
+ out->value = (unsigned char *)OPENSSL_malloc(out->nbytes);
+ if (!out->value) {
+ return 0;
+ }
+ BN_bn2bin(in, &out->value[mod]);
+ if (mod)
+ memset(out->value, 0, mod);
+
+ return 1;
+}
+# endif
+
+# ifndef OPENSSL_NO_RSA
/* Un petit mod_exp chinois */
static int cswift_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)
- {
- SW_STATUS sw_status;
- SW_LARGENUMBER arg, res;
- SW_PARAM sw_param;
- SW_CONTEXT_HANDLE hac;
- BIGNUM *rsa_p = NULL;
- BIGNUM *rsa_q = NULL;
- BIGNUM *rsa_dmp1 = NULL;
- BIGNUM *rsa_dmq1 = NULL;
- BIGNUM *rsa_iqmp = NULL;
- BIGNUM *argument = NULL;
- BIGNUM *result = NULL;
- int to_return = 0; /* expect failure */
- int acquired = 0;
-
- if(!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- acquired = 1;
- /* Prepare the params */
- BN_CTX_start(ctx);
- rsa_p = BN_CTX_get(ctx);
- rsa_q = BN_CTX_get(ctx);
- rsa_dmp1 = BN_CTX_get(ctx);
- rsa_dmq1 = BN_CTX_get(ctx);
- rsa_iqmp = BN_CTX_get(ctx);
- argument = BN_CTX_get(ctx);
- result = BN_CTX_get(ctx);
- if(!result)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BN_CTX_FULL);
- goto err;
- }
- if(!bn_wexpand(rsa_p, p->top) || !bn_wexpand(rsa_q, q->top) ||
- !bn_wexpand(rsa_dmp1, dmp1->top) ||
- !bn_wexpand(rsa_dmq1, dmq1->top) ||
- !bn_wexpand(rsa_iqmp, iqmp->top) ||
- !bn_wexpand(argument, a->top) ||
- !bn_wexpand(result, p->top + q->top))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BN_EXPAND_FAIL);
- goto err;
- }
- sw_param.type = SW_ALG_CRT;
- sw_param.up.crt.p.nbytes = BN_bn2bin(p, (unsigned char *)rsa_p->d);
- sw_param.up.crt.p.value = (unsigned char *)rsa_p->d;
- sw_param.up.crt.q.nbytes = BN_bn2bin(q, (unsigned char *)rsa_q->d);
- sw_param.up.crt.q.value = (unsigned char *)rsa_q->d;
- sw_param.up.crt.dmp1.nbytes = BN_bn2bin(dmp1,
- (unsigned char *)rsa_dmp1->d);
- sw_param.up.crt.dmp1.value = (unsigned char *)rsa_dmp1->d;
- sw_param.up.crt.dmq1.nbytes = BN_bn2bin(dmq1,
- (unsigned char *)rsa_dmq1->d);
- sw_param.up.crt.dmq1.value = (unsigned char *)rsa_dmq1->d;
- sw_param.up.crt.iqmp.nbytes = BN_bn2bin(iqmp,
- (unsigned char *)rsa_iqmp->d);
- sw_param.up.crt.iqmp.value = (unsigned char *)rsa_iqmp->d;
- /* Attach the key params */
- sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
- switch(sw_status)
- {
- case SW_OK:
- break;
- case SW_ERR_INPUT_SIZE:
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_BAD_KEY_SIZE);
- goto err;
- default:
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- }
- goto err;
- }
- /* Prepare the argument and response */
- arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
- arg.value = (unsigned char *)argument->d;
- res.nbytes = 2 * BN_num_bytes(p);
- memset(result->d, 0, res.nbytes);
- res.value = (unsigned char *)result->d;
- /* Perform the operation */
- if((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP_CRT, &arg, 1,
- &res, 1)) != SW_OK)
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- goto err;
- }
- /* Convert the response */
- BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
- to_return = 1;
-err:
- if(acquired)
- release_context(hac);
- BN_CTX_end(ctx);
- return to_return;
- }
-
-#ifndef OPENSSL_NO_RSA
-static int cswift_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)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_RSA_MOD_EXP,CSWIFT_R_MISSING_KEY_COMPONENTS);
- goto err;
- }
- to_return = cswift_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
- rsa->dmq1, rsa->iqmp, ctx);
-err:
- if(ctx)
- BN_CTX_free(ctx);
- return to_return;
- }
-#endif
+ const BIGNUM *q, const BIGNUM *dmp1,
+ const BIGNUM *dmq1, const BIGNUM *iqmp,
+ BN_CTX *ctx)
+{
+ SW_STATUS sw_status;
+ SW_LARGENUMBER arg, res;
+ SW_PARAM sw_param;
+ SW_CONTEXT_HANDLE hac;
+ BIGNUM *result = NULL;
+ BIGNUM *argument = NULL;
+ int to_return = 0; /* expect failure */
+ int acquired = 0;
+
+ sw_param.up.crt.p.value = NULL;
+ sw_param.up.crt.q.value = NULL;
+ sw_param.up.crt.dmp1.value = NULL;
+ sw_param.up.crt.dmq1.value = NULL;
+ sw_param.up.crt.iqmp.value = NULL;
+
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ acquired = 1;
+
+ /* Prepare the params */
+ argument = BN_new();
+ result = BN_new();
+ if (!result || !argument) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_CTX_FULL);
+ goto err;
+ }
+
+ sw_param.type = SW_ALG_CRT;
+ /************************************************************************/
+ /*
+ * 04/02/2003
+ */
+ /*
+ * Modified by Frederic Giudicelli (deny-all.com) to overcome the
+ */
+ /*
+ * limitation of cswift with values not a multiple of 32
+ */
+ /************************************************************************/
+ if (!cswift_bn_32copy(&sw_param.up.crt.p, p)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ if (!cswift_bn_32copy(&sw_param.up.crt.q, q)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ if (!cswift_bn_32copy(&sw_param.up.crt.dmp1, dmp1)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ if (!cswift_bn_32copy(&sw_param.up.crt.dmq1, dmq1)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ if (!cswift_bn_32copy(&sw_param.up.crt.iqmp, iqmp)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ if (!bn_wexpand(argument, a->top) || !bn_wexpand(result, p->top + q->top)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+
+ /* Attach the key params */
+ sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
+ switch (sw_status) {
+ case SW_OK:
+ break;
+ case SW_ERR_INPUT_SIZE:
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_BAD_KEY_SIZE);
+ goto err;
+ default:
+ {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ }
+ goto err;
+ }
+ /* Prepare the argument and response */
+ arg.nbytes = BN_bn2bin(a, (unsigned char *)argument->d);
+ arg.value = (unsigned char *)argument->d;
+ res.nbytes = 2 * BN_num_bytes(p);
+ memset(result->d, 0, res.nbytes);
+ res.value = (unsigned char *)result->d;
+ /* Perform the operation */
+ if ((sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_MODEXP_CRT, &arg, 1,
+ &res, 1)) != SW_OK) {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_MOD_EXP_CRT, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ /* Convert the response */
+ BN_bin2bn((unsigned char *)result->d, res.nbytes, r);
+ to_return = 1;
+ err:
+ if (sw_param.up.crt.p.value)
+ OPENSSL_free(sw_param.up.crt.p.value);
+ if (sw_param.up.crt.q.value)
+ OPENSSL_free(sw_param.up.crt.q.value);
+ if (sw_param.up.crt.dmp1.value)
+ OPENSSL_free(sw_param.up.crt.dmp1.value);
+ if (sw_param.up.crt.dmq1.value)
+ OPENSSL_free(sw_param.up.crt.dmq1.value);
+ if (sw_param.up.crt.iqmp.value)
+ OPENSSL_free(sw_param.up.crt.iqmp.value);
+ if (result)
+ BN_free(result);
+ if (argument)
+ BN_free(argument);
+ if (acquired)
+ release_context(hac);
+ return to_return;
+}
+# endif
+
+# ifndef OPENSSL_NO_RSA
+static int cswift_rsa_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa,
+ BN_CTX *ctx)
+{
+ int to_return = 0;
+ const RSA_METHOD *def_rsa_method;
+
+ if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_RSA_MOD_EXP,
+ CSWIFT_R_MISSING_KEY_COMPONENTS);
+ goto err;
+ }
+
+ /* Try the limits of RSA (2048 bits) */
+ if (BN_num_bytes(rsa->p) > 128 ||
+ BN_num_bytes(rsa->q) > 128 ||
+ BN_num_bytes(rsa->dmp1) > 128 ||
+ BN_num_bytes(rsa->dmq1) > 128 || BN_num_bytes(rsa->iqmp) > 128) {
+# ifdef RSA_NULL
+ def_rsa_method = RSA_null_method();
+# else
+ def_rsa_method = RSA_PKCS1_SSLeay();
+# endif
+ if (def_rsa_method)
+ return def_rsa_method->rsa_mod_exp(r0, I, rsa, ctx);
+ }
+
+ to_return = cswift_mod_exp_crt(r0, I, rsa->p, rsa->q, rsa->dmp1,
+ rsa->dmq1, rsa->iqmp, ctx);
+ err:
+ return to_return;
+}
/* This function is aliased to mod_exp (with the mont stuff dropped). */
static int cswift_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
- {
- return cswift_mod_exp(r, a, p, m, ctx);
- }
+ const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx)
+{
+ const RSA_METHOD *def_rsa_method;
-#ifndef OPENSSL_NO_DSA
+ /* Try the limits of RSA (2048 bits) */
+ if (BN_num_bytes(r) > 256 ||
+ BN_num_bytes(a) > 256 || BN_num_bytes(m) > 256) {
+# ifdef RSA_NULL
+ def_rsa_method = RSA_null_method();
+# else
+ def_rsa_method = RSA_PKCS1_SSLeay();
+# endif
+ if (def_rsa_method)
+ return def_rsa_method->bn_mod_exp(r, a, p, m, ctx, m_ctx);
+ }
+
+ return cswift_mod_exp(r, a, p, m, ctx);
+}
+# endif /* OPENSSL_NO_RSA */
+
+# ifndef OPENSSL_NO_DSA
static DSA_SIG *cswift_dsa_sign(const unsigned char *dgst, int dlen, DSA *dsa)
- {
- SW_CONTEXT_HANDLE hac;
- SW_PARAM sw_param;
- SW_STATUS sw_status;
- SW_LARGENUMBER arg, res;
- unsigned char *ptr;
- BN_CTX *ctx;
- BIGNUM *dsa_p = NULL;
- BIGNUM *dsa_q = NULL;
- BIGNUM *dsa_g = NULL;
- BIGNUM *dsa_key = NULL;
- BIGNUM *result = NULL;
- DSA_SIG *to_return = NULL;
- int acquired = 0;
-
- if((ctx = BN_CTX_new()) == NULL)
- goto err;
- if(!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- acquired = 1;
- /* Prepare the params */
- BN_CTX_start(ctx);
- dsa_p = BN_CTX_get(ctx);
- dsa_q = BN_CTX_get(ctx);
- dsa_g = BN_CTX_get(ctx);
- dsa_key = BN_CTX_get(ctx);
- result = BN_CTX_get(ctx);
- if(!result)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_CTX_FULL);
- goto err;
- }
- if(!bn_wexpand(dsa_p, dsa->p->top) ||
- !bn_wexpand(dsa_q, dsa->q->top) ||
- !bn_wexpand(dsa_g, dsa->g->top) ||
- !bn_wexpand(dsa_key, dsa->priv_key->top) ||
- !bn_wexpand(result, dsa->p->top))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BN_EXPAND_FAIL);
- goto err;
- }
- sw_param.type = SW_ALG_DSA;
- sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p,
- (unsigned char *)dsa_p->d);
- sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
- sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q,
- (unsigned char *)dsa_q->d);
- sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
- sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g,
- (unsigned char *)dsa_g->d);
- sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
- sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->priv_key,
- (unsigned char *)dsa_key->d);
- sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
- /* Attach the key params */
- sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
- switch(sw_status)
- {
- case SW_OK:
- break;
- case SW_ERR_INPUT_SIZE:
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_BAD_KEY_SIZE);
- goto err;
- default:
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- }
- goto err;
- }
- /* Prepare the argument and response */
- arg.nbytes = dlen;
- arg.value = (unsigned char *)dgst;
- res.nbytes = BN_num_bytes(dsa->p);
- memset(result->d, 0, res.nbytes);
- res.value = (unsigned char *)result->d;
- /* Perform the operation */
- sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_SIGN, &arg, 1,
- &res, 1);
- if(sw_status != SW_OK)
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- goto err;
- }
- /* Convert the response */
- ptr = (unsigned char *)result->d;
- if((to_return = DSA_SIG_new()) == NULL)
- goto err;
- to_return->r = BN_bin2bn((unsigned char *)result->d, 20, NULL);
- to_return->s = BN_bin2bn((unsigned char *)result->d + 20, 20, NULL);
-
-err:
- if(acquired)
- release_context(hac);
- if(ctx)
- {
- BN_CTX_end(ctx);
- BN_CTX_free(ctx);
- }
- return to_return;
- }
+{
+ SW_CONTEXT_HANDLE hac;
+ SW_PARAM sw_param;
+ SW_STATUS sw_status;
+ SW_LARGENUMBER arg, res;
+ BN_CTX *ctx;
+ BIGNUM *dsa_p = NULL;
+ BIGNUM *dsa_q = NULL;
+ BIGNUM *dsa_g = NULL;
+ BIGNUM *dsa_key = NULL;
+ BIGNUM *result = NULL;
+ DSA_SIG *to_return = NULL;
+ int acquired = 0;
+
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ acquired = 1;
+ /* Prepare the params */
+ BN_CTX_start(ctx);
+ dsa_p = BN_CTX_get(ctx);
+ dsa_q = BN_CTX_get(ctx);
+ dsa_g = BN_CTX_get(ctx);
+ dsa_key = BN_CTX_get(ctx);
+ result = BN_CTX_get(ctx);
+ if (!result) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_BN_CTX_FULL);
+ goto err;
+ }
+ if (!bn_wexpand(dsa_p, dsa->p->top) ||
+ !bn_wexpand(dsa_q, dsa->q->top) ||
+ !bn_wexpand(dsa_g, dsa->g->top) ||
+ !bn_wexpand(dsa_key, dsa->priv_key->top) ||
+ !bn_wexpand(result, dsa->p->top)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ sw_param.type = SW_ALG_DSA;
+ sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p, (unsigned char *)dsa_p->d);
+ sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
+ sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q, (unsigned char *)dsa_q->d);
+ sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
+ sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g, (unsigned char *)dsa_g->d);
+ sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
+ sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->priv_key,
+ (unsigned char *)dsa_key->d);
+ sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
+ /* Attach the key params */
+ sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
+ switch (sw_status) {
+ case SW_OK:
+ break;
+ case SW_ERR_INPUT_SIZE:
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_BAD_KEY_SIZE);
+ goto err;
+ default:
+ {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ }
+ goto err;
+ }
+ /* Prepare the argument and response */
+ arg.nbytes = dlen;
+ arg.value = (unsigned char *)dgst;
+ res.nbytes = BN_num_bytes(dsa->p);
+ memset(result->d, 0, res.nbytes);
+ res.value = (unsigned char *)result->d;
+ /* Perform the operation */
+ sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_SIGN, &arg, 1,
+ &res, 1);
+ if (sw_status != SW_OK) {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_SIGN, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ /* Convert the response */
+ if ((to_return = DSA_SIG_new()) == NULL)
+ goto err;
+ to_return->r = BN_bin2bn((unsigned char *)result->d, 20, NULL);
+ to_return->s = BN_bin2bn((unsigned char *)result->d + 20, 20, NULL);
+
+ err:
+ if (acquired)
+ release_context(hac);
+ if (ctx) {
+ BN_CTX_end(ctx);
+ BN_CTX_free(ctx);
+ }
+ return to_return;
+}
static int cswift_dsa_verify(const unsigned char *dgst, int dgst_len,
- DSA_SIG *sig, DSA *dsa)
- {
- SW_CONTEXT_HANDLE hac;
- SW_PARAM sw_param;
- SW_STATUS sw_status;
- SW_LARGENUMBER arg[2], res;
- unsigned long sig_result;
- BN_CTX *ctx;
- BIGNUM *dsa_p = NULL;
- BIGNUM *dsa_q = NULL;
- BIGNUM *dsa_g = NULL;
- BIGNUM *dsa_key = NULL;
- BIGNUM *argument = NULL;
- int to_return = -1;
- int acquired = 0;
-
- if((ctx = BN_CTX_new()) == NULL)
- goto err;
- if(!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- acquired = 1;
- /* Prepare the params */
- BN_CTX_start(ctx);
- dsa_p = BN_CTX_get(ctx);
- dsa_q = BN_CTX_get(ctx);
- dsa_g = BN_CTX_get(ctx);
- dsa_key = BN_CTX_get(ctx);
- argument = BN_CTX_get(ctx);
- if(!argument)
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BN_CTX_FULL);
- goto err;
- }
- if(!bn_wexpand(dsa_p, dsa->p->top) ||
- !bn_wexpand(dsa_q, dsa->q->top) ||
- !bn_wexpand(dsa_g, dsa->g->top) ||
- !bn_wexpand(dsa_key, dsa->pub_key->top) ||
- !bn_wexpand(argument, 40))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BN_EXPAND_FAIL);
- goto err;
- }
- sw_param.type = SW_ALG_DSA;
- sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p,
- (unsigned char *)dsa_p->d);
- sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
- sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q,
- (unsigned char *)dsa_q->d);
- sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
- sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g,
- (unsigned char *)dsa_g->d);
- sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
- sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->pub_key,
- (unsigned char *)dsa_key->d);
- sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
- /* Attach the key params */
- sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
- switch(sw_status)
- {
- case SW_OK:
- break;
- case SW_ERR_INPUT_SIZE:
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_BAD_KEY_SIZE);
- goto err;
- default:
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- }
- goto err;
- }
- /* Prepare the argument and response */
- arg[0].nbytes = dgst_len;
- arg[0].value = (unsigned char *)dgst;
- arg[1].nbytes = 40;
- arg[1].value = (unsigned char *)argument->d;
- memset(arg[1].value, 0, 40);
- BN_bn2bin(sig->r, arg[1].value + 20 - BN_num_bytes(sig->r));
- BN_bn2bin(sig->s, arg[1].value + 40 - BN_num_bytes(sig->s));
- res.nbytes = 4; /* unsigned long */
- res.value = (unsigned char *)(&sig_result);
- /* Perform the operation */
- sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_VERIFY, arg, 2,
- &res, 1);
- if(sw_status != SW_OK)
- {
- char tmpbuf[DECIMAL_SIZE(sw_status)+1];
- CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY,CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", sw_status);
- ERR_add_error_data(2, "CryptoSwift error number is ",tmpbuf);
- goto err;
- }
- /* Convert the response */
- to_return = ((sig_result == 0) ? 0 : 1);
-
-err:
- if(acquired)
- release_context(hac);
- if(ctx)
- {
- BN_CTX_end(ctx);
- BN_CTX_free(ctx);
- }
- return to_return;
- }
-#endif
+ DSA_SIG *sig, DSA *dsa)
+{
+ SW_CONTEXT_HANDLE hac;
+ SW_PARAM sw_param;
+ SW_STATUS sw_status;
+ SW_LARGENUMBER arg[2], res;
+ unsigned long sig_result;
+ BN_CTX *ctx;
+ BIGNUM *dsa_p = NULL;
+ BIGNUM *dsa_q = NULL;
+ BIGNUM *dsa_g = NULL;
+ BIGNUM *dsa_key = NULL;
+ BIGNUM *argument = NULL;
+ int to_return = -1;
+ int acquired = 0;
-#ifndef OPENSSL_NO_DH
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ acquired = 1;
+ /* Prepare the params */
+ BN_CTX_start(ctx);
+ dsa_p = BN_CTX_get(ctx);
+ dsa_q = BN_CTX_get(ctx);
+ dsa_g = BN_CTX_get(ctx);
+ dsa_key = BN_CTX_get(ctx);
+ argument = BN_CTX_get(ctx);
+ if (!argument) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_BN_CTX_FULL);
+ goto err;
+ }
+ if (!bn_wexpand(dsa_p, dsa->p->top) ||
+ !bn_wexpand(dsa_q, dsa->q->top) ||
+ !bn_wexpand(dsa_g, dsa->g->top) ||
+ !bn_wexpand(dsa_key, dsa->pub_key->top) ||
+ !bn_wexpand(argument, 40)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_BN_EXPAND_FAIL);
+ goto err;
+ }
+ sw_param.type = SW_ALG_DSA;
+ sw_param.up.dsa.p.nbytes = BN_bn2bin(dsa->p, (unsigned char *)dsa_p->d);
+ sw_param.up.dsa.p.value = (unsigned char *)dsa_p->d;
+ sw_param.up.dsa.q.nbytes = BN_bn2bin(dsa->q, (unsigned char *)dsa_q->d);
+ sw_param.up.dsa.q.value = (unsigned char *)dsa_q->d;
+ sw_param.up.dsa.g.nbytes = BN_bn2bin(dsa->g, (unsigned char *)dsa_g->d);
+ sw_param.up.dsa.g.value = (unsigned char *)dsa_g->d;
+ sw_param.up.dsa.key.nbytes = BN_bn2bin(dsa->pub_key,
+ (unsigned char *)dsa_key->d);
+ sw_param.up.dsa.key.value = (unsigned char *)dsa_key->d;
+ /* Attach the key params */
+ sw_status = p_CSwift_AttachKeyParam(hac, &sw_param);
+ switch (sw_status) {
+ case SW_OK:
+ break;
+ case SW_ERR_INPUT_SIZE:
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_BAD_KEY_SIZE);
+ goto err;
+ default:
+ {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ }
+ goto err;
+ }
+ /* Prepare the argument and response */
+ arg[0].nbytes = dgst_len;
+ arg[0].value = (unsigned char *)dgst;
+ arg[1].nbytes = 40;
+ arg[1].value = (unsigned char *)argument->d;
+ memset(arg[1].value, 0, 40);
+ BN_bn2bin(sig->r, arg[1].value + 20 - BN_num_bytes(sig->r));
+ BN_bn2bin(sig->s, arg[1].value + 40 - BN_num_bytes(sig->s));
+ res.nbytes = 4; /* unsigned long */
+ res.value = (unsigned char *)(&sig_result);
+ /* Perform the operation */
+ sw_status = p_CSwift_SimpleRequest(hac, SW_CMD_DSS_VERIFY, arg, 2,
+ &res, 1);
+ if (sw_status != SW_OK) {
+ char tmpbuf[DECIMAL_SIZE(sw_status) + 1];
+ CSWIFTerr(CSWIFT_F_CSWIFT_DSA_VERIFY, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", sw_status);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ /* Convert the response */
+ to_return = ((sig_result == 0) ? 0 : 1);
+
+ err:
+ if (acquired)
+ release_context(hac);
+ if (ctx) {
+ BN_CTX_end(ctx);
+ BN_CTX_free(ctx);
+ }
+ return to_return;
+}
+# endif
+
+# ifndef OPENSSL_NO_DH
/* This function is aliased to mod_exp (with the dh and mont dropped). */
static int cswift_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 cswift_mod_exp(r, a, p, m, ctx);
- }
-#endif
+ const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+ return cswift_mod_exp(r, a, p, m, ctx);
+}
+# endif
/* Random bytes are good */
static int cswift_rand_bytes(unsigned char *buf, int num)
{
- SW_CONTEXT_HANDLE hac;
- SW_STATUS swrc;
- SW_LARGENUMBER largenum;
- size_t nbytes = 0;
- int acquired = 0;
- int to_return = 0; /* assume failure */
-
- if (!get_context(&hac))
- {
- CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_UNIT_FAILURE);
- goto err;
- }
- acquired = 1;
-
- while (nbytes < (size_t)num)
- {
- /* tell CryptoSwift how many bytes we want and where we want it.
- * Note: - CryptoSwift cannot do more than 4096 bytes at a time.
- * - CryptoSwift can only do multiple of 32-bits. */
- largenum.value = (SW_BYTE *) buf + nbytes;
- if (4096 > num - nbytes)
- largenum.nbytes = num - nbytes;
- else
- largenum.nbytes = 4096;
-
- swrc = p_CSwift_SimpleRequest(hac, SW_CMD_RAND, NULL, 0, &largenum, 1);
- if (swrc != SW_OK)
- {
- char tmpbuf[20];
- CSWIFTerr(CSWIFT_F_CSWIFT_CTRL, CSWIFT_R_REQUEST_FAILED);
- sprintf(tmpbuf, "%ld", swrc);
- ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
- goto err;
- }
-
- nbytes += largenum.nbytes;
- }
- to_return = 1; /* success */
-
-err:
- if (acquired)
- release_context(hac);
- return to_return;
+ SW_CONTEXT_HANDLE hac;
+ SW_STATUS swrc;
+ SW_LARGENUMBER largenum;
+ int acquired = 0;
+ int to_return = 0; /* assume failure */
+ unsigned char buf32[1024];
+
+ if (!get_context(&hac)) {
+ CSWIFTerr(CSWIFT_F_CSWIFT_RAND_BYTES, CSWIFT_R_UNIT_FAILURE);
+ goto err;
+ }
+ acquired = 1;
+
+ /************************************************************************/
+ /*
+ * 04/02/2003
+ */
+ /*
+ * Modified by Frederic Giudicelli (deny-all.com) to overcome the
+ */
+ /*
+ * limitation of cswift with values not a multiple of 32
+ */
+ /************************************************************************/
+
+ while (num >= (int)sizeof(buf32)) {
+ largenum.value = buf;
+ largenum.nbytes = sizeof(buf32);
+ /*-
+ * tell CryptoSwift how many bytes we want and where we want it.
+ * Note: - CryptoSwift cannot do more than 4096 bytes at a time.
+ * - CryptoSwift can only do multiple of 32-bits.
+ */
+ swrc =
+ p_CSwift_SimpleRequest(hac, SW_CMD_RAND, NULL, 0, &largenum, 1);
+ if (swrc != SW_OK) {
+ char tmpbuf[20];
+ CSWIFTerr(CSWIFT_F_CSWIFT_RAND_BYTES, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", swrc);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ buf += sizeof(buf32);
+ num -= sizeof(buf32);
+ }
+ if (num) {
+ largenum.nbytes = sizeof(buf32);
+ largenum.value = buf32;
+ swrc =
+ p_CSwift_SimpleRequest(hac, SW_CMD_RAND, NULL, 0, &largenum, 1);
+ if (swrc != SW_OK) {
+ char tmpbuf[20];
+ CSWIFTerr(CSWIFT_F_CSWIFT_RAND_BYTES, CSWIFT_R_REQUEST_FAILED);
+ sprintf(tmpbuf, "%ld", swrc);
+ ERR_add_error_data(2, "CryptoSwift error number is ", tmpbuf);
+ goto err;
+ }
+ memcpy(buf, largenum.value, num);
+ }
+
+ to_return = 1; /* success */
+ err:
+ if (acquired)
+ release_context(hac);
+
+ return to_return;
}
static int cswift_rand_status(void)
{
- return 1;
+ return 1;
}
-
-/* This stuff is needed if this ENGINE is being compiled into a self-contained
- * shared-library. */
-#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+/*
+ * This stuff is needed if this ENGINE is being compiled into a
+ * self-contained shared-library.
+ */
+# ifndef OPENSSL_NO_DYNAMIC_ENGINE
static int bind_fn(ENGINE *e, const char *id)
- {
- if(id && (strcmp(id, engine_cswift_id) != 0))
- return 0;
- if(!bind_helper(e))
- return 0;
- return 1;
- }
-IMPLEMENT_DYNAMIC_CHECK_FN()
-IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
-#endif /* OPENSSL_NO_DYNAMIC_ENGINE */
+{
+ if (id && (strcmp(id, engine_cswift_id) != 0))
+ return 0;
+ if (!bind_helper(e))
+ return 0;
+ return 1;
+}
-#endif /* !OPENSSL_NO_HW_CSWIFT */
-#endif /* !OPENSSL_NO_HW */
+IMPLEMENT_DYNAMIC_CHECK_FN()
+ IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
+# endif /* OPENSSL_NO_DYNAMIC_ENGINE */
+# endif /* !OPENSSL_NO_HW_CSWIFT */
+#endif /* !OPENSSL_NO_HW */
projects / openssl.git / blobdiff