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467 lines
18 KiB
C
467 lines
18 KiB
C
/* ====================================================================
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* Copyright (c) 1998-2008 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <time.h>
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#include <sys/time.h>
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#include <string.h>
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#ifdef USE_HSM
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#include "cr_hsm_code.h"
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#include "cr_hsm_bignum.h"
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// for develop
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#include <openssl/sha.h>
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#include <openssl/ec.h>
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#include <openssl/ecdsa.h>
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#else
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// openssl
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#include <openssl/sha.h>
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#include <openssl/ec.h>
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#include <openssl/ecdsa.h>
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#include "cr_NCT2_priv_dev.c"
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#include "cr_NCT2_priv_prod.c"
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#endif // USE_HSM
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#include "cr_NCT2_pub_dev.c"
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#include "cr_NCT2_pub_prod.c"
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#include "cr_generate_id.h"
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#include "cr_generate_id_private.h"
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#define CR_CERT_EXPIRE_SECS ( 60*60*24*365* 20 ) // デバイス証明書期限 20年 ※うるう年は無視
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u8 tempSign[ 70 ];
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// TWL device cert base
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typedef struct CR_DeviceCert
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{
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u8 sigType [ 4 ]; // 0x000 - 0x003 : 0x00010005, signature type is ECDSA + SHA256
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u8 eccSignature[ 60 ]; // 0x004 - 0x03F : ECDSA using SHA-1 and CA key
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u8 padding0 [ 64 ]; // 0x040 - 0x07F : zero-filled
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u8 issuerName [ 64 ]; // 0x080 - 0x0BF : issuer name, "Root-CA00000002-MS00000008"
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u8 keyType [ 4 ]; // 0x0C0 - 0x0C3 : 0x00000002, cert public key type is ECC233
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u8 subject [ 64 ]; // 0x0C4 - 0x103 : subject field, "CTxxxxxxxx-yy"
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u32 expiryDate; // 0x104 - 0x107 : second from Epoch (Jan 1, 1970 00:00)
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u8 eccPubKey [ 60 ]; // 0x108 - 0x143 : cert public key (openssl sect233r1)
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u8 padding1 [ 60 ]; // 0x144 - 0x17F : zero-filled
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} CR_DeviceCert;
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const u8 issuerName[] = {
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0x14, 0x33, 0x34, 0x2E, 0x3F, 0x34, 0x3E, 0x35,
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0x19, 0x1B, 0x7A, 0x77, 0x7A, 0x1D, 0x68, 0x05,
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0x14, 0x33, 0x34, 0x2E, 0x3F, 0x34, 0x3E, 0x35,
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0x19, 0x0E, 0x08, 0x68 };
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static void BN2BinWithPadding( BIGNUM *pBn, u8 *pDst, int dstLen );
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// create CTR Device cert
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int GenerateCTRDeviceCert( EC_KEY *pECkey, u32 device_id, u8 bonding_option, u8 *pDevCertSign, u32 *pExpiryDate )
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{
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int ret_code = CR_GENID_SUCCESS;
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CR_DeviceCert deviceCert;
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EC_KEY *NCT2 = NULL;
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int i;
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#ifdef DEBUG_PRINT
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if ( sizeof( CR_DeviceCert ) > 384 )
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{
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printf( "CR_DeviceCert size error. %d\n", sizeof(CR_DeviceCert) );
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}
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#endif
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memset( &deviceCert, 0, sizeof(deviceCert) );
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// sigType
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// ECDSA+SHA256 = 0x00010005, ECDSA+SHA1 = 0x00010002
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deviceCert.sigType[0] = 0x00;
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deviceCert.sigType[1] = 0x01;
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deviceCert.sigType[2] = 0x00;
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#ifdef ECDSA_SHA256
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deviceCert.sigType[3] = 0x05;
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#else // !ECDSA_SHA256
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deviceCert.sigType[3] = 0x02;
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#endif // ECDSA_SHA256
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// issuerName
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for( i = 0; i < sizeof(issuerName); i++ ) {
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deviceCert.issuerName[ i ] = issuerName[ i ] ^ 0x5a;
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}
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sprintf( &deviceCert.issuerName[ sizeof(issuerName) ], "%s", bonding_option ? "dev" : "prod" );
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// keyType 0x00000002 ECC233
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deviceCert.keyType[0] = 0x00;
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deviceCert.keyType[1] = 0x00;
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deviceCert.keyType[2] = 0x00;
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deviceCert.keyType[3] = 0x02;
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// subject : CT + device_id + bonding_option
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sprintf( deviceCert.subject, "CT%08X-%02X", (unsigned int)device_id, bonding_option );
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// expiryDate +20years
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*pExpiryDate += CR_CERT_EXPIRE_SECS; // ID_BUFにも証明書期限をセットする。
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deviceCert.expiryDate = *pExpiryDate;
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// eccPubKey
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BN2BinWithPadding( &pECkey->pub_key->X, &deviceCert.eccPubKey[ 0 ], 30 );
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BN2BinWithPadding( &pECkey->pub_key->Y, &deviceCert.eccPubKey[ 30 ], 30 );
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#if 0
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DEBUG_PRINT_ARRAY( "eccPubKey:", (const char *)deviceCert.eccPubKey, 60 );
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DEBUG_PRINT_ARRAY( "eccPubKey.X:", (const char *)pECkey->pub_key->X.d, pECkey->pub_key->X.dmax * 4 );
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DEBUG_PRINT_ARRAY( "eccPubKey.Y:", (const char *)pECkey->pub_key->Y.d, pECkey->pub_key->Y.dmax * 4 );
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#endif
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// eccSignature
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#ifdef USE_HSM
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// ECDSA署名付加
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#ifdef ECDSA_SHA256
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u8 sha256Buf[ SHA256_DIGEST_LENGTH ];
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// CR_DeviceCertのSHA256計算
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SHA256( deviceCert.issuerName, (int)&deviceCert + sizeof(CR_DeviceCert) - (int)deviceCert.issuerName, sha256Buf );
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DEBUG_PRINT_ARRAY( "sha256(HSM)", (const char *)sha256Buf, 32 );
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ret_code = hsm_ecdsa_sign( deviceCert.eccSignature, sha256Buf, bonding_option );
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#else // !ECDSA_SHA256
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u8 sha1Buf[ 20 ];
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SHA1( deviceCert.issuerName, (int)&deviceCert + sizeof(CR_DeviceCert) - (int)deviceCert.issuerName, sha1Buf );
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DEBUG_PRINT_ARRAY( "sha1(HSM)", (const char *)sha1Buf, 20 );
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ret_code = hsm_ecdsa_sign( deviceCert.eccSignature, sha1Buf, bonding_option );
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#endif // ECDSA_SHA256
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if ( ret_code != CR_GENID_SUCCESS )
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{
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SetErrorInfo( __FUNCTION__, __LINE__ );
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return ret_code;
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}
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#else // !USE_HSM
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// DERフォーマットのECC鍵を読み込み
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{
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// bonding_option によって、鍵を差し替え
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const unsigned char *der_priv = bonding_option ? cr_NCT2_priv_dev : cr_NCT2_priv_prod;
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int priv_len = der_priv[ 8 ] | der_priv[ 9 ] << 8; // KEY長を取り出し
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der_priv += 0x10; // ヘッダ部分を除外してKEY実体を指定
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// ECCは、秘密鍵のみで公開鍵成分もセットされるようなので、公開鍵は読み込まない。
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NCT2 = d2i_ECPrivateKey( NULL, &der_priv, priv_len );
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if( NCT2 == NULL ) {
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ret_code = CR_GENID_ERROR_ECC_READ_PRIVATE_KEY;
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goto end;
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}
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#if 0
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DEBUG_PRINT_ARRAY( "EC priv:", (const char *)NCT2->priv_key->d, NCT2->priv_key->dmax * 4);
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DEBUG_PRINT_ARRAY( "EC pub.X:", (const char *)NCT2->pub_key->X.d, NCT2->pub_key->X.dmax * 4 );
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DEBUG_PRINT_ARRAY( "EC pub.Y:", (const char *)NCT2->pub_key->Y.d, NCT2->pub_key->Y.dmax * 4 );
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#endif
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}
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// ECDSA署名付加
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#ifdef ECDSA_SHA256
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u8 sha256Buf[ SHA256_DIGEST_LENGTH ];
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u8 ecdsasig[ 0x80 ];
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const u8 *pECDSAsig = ecdsasig;
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ECDSA_SIG *sig = NULL;
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int signLen = 0;
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int test_ret = 0;
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// CR_DeviceCertのSHA256計算
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SHA256( deviceCert.issuerName, (int)&deviceCert + sizeof(CR_DeviceCert) - (int)deviceCert.issuerName, sha256Buf );
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// 上位232bit分で署名
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memset( ecdsasig, 0, sizeof(ecdsasig) );
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test_ret = ECDSA_sign( 0, sha256Buf, 233/8, ecdsasig, &signLen, NCT2 );
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#else // !ECDSA_SHA256
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u8 sha1Buf[ 20 ];
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u8 ecdsasig[ 0x80 ];
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const u8 *pECDSAsig = ecdsasig;
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ECDSA_SIG *sig = NULL;
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int signLen = 0;
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int test_ret = 0;
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// CR_DeviceCertのSHA1計算
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SHA1( deviceCert.issuerName, (int)&deviceCert + sizeof(CR_DeviceCert) - (int)deviceCert.issuerName, sha1Buf );
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// 署名
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memset( ecdsasig, 0, sizeof(ecdsasig) );
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test_ret = ECDSA_sign( 0, sha1Buf, 20, ecdsasig, &signLen, NCT2 );
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#endif // ECDSA_SHA256
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if (test_ret == 0) {
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ret_code = CR_GENID_ERROR_ECDSA_SIGN;
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SetErrorInfo( __FUNCTION__, __LINE__ );
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goto end;
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}
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DEBUG_PRINT_ARRAY( "ECDSA:", (const char *)ecdsasig, signLen );
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// DERデコードして、r と s を eccSignature にセット
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sig = d2i_ECDSA_SIG( NULL, &pECDSAsig, signLen );
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if( sig == NULL ) {
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ret_code = CR_GENID_ERROR_ECDSA_DEC;
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SetErrorInfo( __FUNCTION__, __LINE__ );
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goto end;
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}
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#if 0
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DEBUG_PRINT_ARRAY( "ECDSA.r:", (const char *)sig->r->d, sig->r->dmax * 4);
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DEBUG_PRINT_ARRAY( "ECDSA.s:", (const char *)sig->s->d, sig->s->dmax * 4 );
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#endif
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BN2BinWithPadding( sig->r, &deviceCert.eccSignature[ 0 ], 30 );
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BN2BinWithPadding( sig->s, &deviceCert.eccSignature[ 30 ], 30 );
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memcpy( pDevCertSign, &deviceCert.eccSignature, 60 );
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if( sig ) ECDSA_SIG_free( sig );
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if( NCT2 ) EC_KEY_free( NCT2 );
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NCT2 = NULL;
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#endif // USE_HSM
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#ifdef DEBUG_DEVICE_CERT_OUTPUT_FILE
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#ifdef ECDSA_SHA256
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DebugFileOutput( device_id, "dgst", sha256Buf, 233/8 );
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#else // !ECDSA_SHA256
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DebugFileOutput( device_id, "dgst", sha1Buf, 20 );
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#endif // ECDSA_SHA256
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DebugFileOutput( device_id, "sign", ecdsasig, signLen );
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#endif // DEBUG_DEVICE_CERT_OUTPUT_FILE
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// ECDSA署名検証
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{
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// bonding_option によって、鍵を差し替え
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const unsigned char *der_pub = bonding_option ? cr_NCT2_pub_dev : cr_NCT2_pub_prod;
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int pub_len = der_pub[ 8 ] | der_pub[ 9 ] << 8; // KEY長を取り出し
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der_pub += 0x10; // ヘッダ部分を除外してKEY実体を指定
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// BIT STRING の実データ部分のみを指定するよう調整
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pub_len = der_pub[0x15] - 1;
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der_pub += 0x17;
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// ECC公開鍵の読み込み
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NCT2 = EC_KEY_new_by_curve_name( NID_sect233r1 );
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if( NCT2 == NULL ) {
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SetErrorInfo( __FUNCTION__, __LINE__ );
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ret_code = CR_GENID_ERROR_ECC_KEY_NEW;
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goto end;
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}
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if( o2i_ECPublicKey( &NCT2, &der_pub, pub_len ) == NULL ) {
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SetErrorInfo( __FUNCTION__, __LINE__ );
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ret_code = CR_GENID_ERROR_ECC_READ_PUBLIC_KEY;
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goto end;
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}
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#ifdef ECDSA_SHA256
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// ハッシュ処理
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int i;
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u8 verifyHash[30];
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memset( verifyHash, 0, sizeof( verifyHash ) );
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verifyHash[0] = sha256Buf[0] >> 7;
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for ( i = 1; i < 30; i++ )
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{
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verifyHash[i] = (sha256Buf[i-1] << 1) | (sha256Buf[i] >> 7);
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}
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DEBUG_PRINT_ARRAY( (char*)"verifyHash(HSM)", (const char *)verifyHash, 30 );
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#endif // ECDSA_SHA256
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// ECDSA署名（DER）を再構築
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u8 signBuf[70];
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int signLen = 66;
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memset( signBuf, 0, sizeof( signBuf ) );
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signBuf[0] = 0x30;
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signBuf[1] = 0x40;
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signBuf[2] = 0x02;
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signBuf[3] = 0x1E;
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memcpy( &signBuf[4], &deviceCert.eccSignature[0], 0x1E );
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signBuf[0x22] = 0x02;
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signBuf[0x23] = 0x1E;
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memcpy( &signBuf[0x24], &deviceCert.eccSignature[30], 0x1E );
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DEBUG_PRINT_ARRAY( (char*)"sign(HSM)", (const char *)signBuf, signLen );
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#ifdef ECDSA_SHA256
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// TODO : ECDSA-SHA256 での検証を通す
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#if 0
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// 署名ベリファイ
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ret_code = ECDSA_verify( 0, verifyHash, 30, signBuf, signLen, NCT2 );
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if( ret_code != 1) {
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ret_code = CR_GENID_ERROR_ECDSA_VERIFY;
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SetErrorInfo( __FUNCTION__, __LINE__ );
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goto end;
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}
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#endif
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#else // !ECDSA_SHA256
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// 署名ベリファイ
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ret_code = ECDSA_verify( 0, sha1Buf, 20, signBuf, signLen, NCT2 );
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if( ret_code != 1) {
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ret_code = CR_GENID_ERROR_ECDSA_VERIFY;
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SetErrorInfo( __FUNCTION__, __LINE__ );
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goto end;
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}
|
||
#endif // ECDSA_SHA256
|
||
}
|
||
|
||
ret_code = CR_GENID_SUCCESS;
|
||
|
||
#if 0
|
||
if ( cr_print_flag )
|
||
{
|
||
int i;
|
||
printf( "deviceCert:\n" );
|
||
printf( "sigType : 0x%08X\n", *(unsigned int*)deviceCert.sigType );
|
||
DEBUG_PRINT_ARRAY( "eccSignature:", (const char *)deviceCert.eccSignature, sizeof(deviceCert.eccSignature) );
|
||
DEBUG_PRINT_ARRAY( "padding0:", (const char *)deviceCert.padding0, sizeof(deviceCert.padding0) );
|
||
printf( "issuerName : " );
|
||
for ( i = 0; i < sizeof(deviceCert.issuerName); i++ ) printf( "%c", deviceCert.issuerName[i] );
|
||
printf( "\n" );
|
||
printf( "keyType : 0x%08X\n", *(unsigned int*)deviceCert.keyType );
|
||
printf( "subject : " );
|
||
for ( i = 0; i < sizeof(deviceCert.subject); i++ ) printf( "%c", deviceCert.subject[i] );
|
||
printf( "\n" );
|
||
printf( "expiryDate : 0x%08X\n", (unsigned int)deviceCert.expiryDate );
|
||
{
|
||
struct tm *tmt;
|
||
tmt = gmtime( &deviceCert.expiryDate );
|
||
printf( " GMT:%d-%02d-%02d %02d:%02d:%02d\n",
|
||
tmt->tm_year+1900, tmt->tm_mon+1, tmt->tm_mday, tmt->tm_hour, tmt->tm_min, tmt->tm_sec );
|
||
}
|
||
DEBUG_PRINT_ARRAY( "eccPubKey :", (const char *)deviceCert.eccPubKey, sizeof(deviceCert.eccPubKey) );
|
||
DEBUG_PRINT_ARRAY( "padding1:", (const char *)deviceCert.padding1, sizeof(deviceCert.padding1) );
|
||
|
||
#ifdef DEBUG_DEVICE_CERT_OUTPUT_FILE
|
||
DebugFileOutput( device_id, "crt", (const u8 *)&deviceCert, sizeof(CR_DeviceCert) );
|
||
#endif // DEBUG_DEVICE_CERT_OUTPUT_FILE
|
||
}
|
||
#endif // dump deviceCert
|
||
|
||
end:
|
||
if( NCT2 ) EC_KEY_free( NCT2 );
|
||
|
||
return ret_code;
|
||
} // generate_CTRCustom_deviceCert
|
||
|
||
|
||
// 指定BIGNUMをバイナリ変換して指定バッファに右詰めでセット
|
||
static void BN2BinWithPadding( BIGNUM *pBN, u8 *pDst, int dstLen )
|
||
{
|
||
int i;
|
||
int bnBitLen, bnByteLen;
|
||
u8 buffer[ 32 ];
|
||
memset( buffer, 0, sizeof(buffer) );
|
||
bnBitLen = BN_num_bits( pBN );
|
||
bnByteLen = ( bnBitLen / 8 ) + ( ( bnBitLen % 8 ) ? 1 : 0 );
|
||
BN_bn2bin( pBN, (u8*)buffer );
|
||
for( i = 0; i < bnByteLen; i++ ) {
|
||
pDst[ dstLen - 1 - i ] = buffer[ bnByteLen - 1 - i ];
|
||
}
|
||
}
|