952 lines
30 KiB
C
952 lines
30 KiB
C
/* Author: Maurice Gittens <maurice@gittens.nl> */
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/* ====================================================================
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* Copyright (c) 1999 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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* licensing@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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#include <stdio.h>
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#include <string.h>
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#include <openssl/crypto.h>
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#include <openssl/dso.h>
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#include <openssl/x509.h>
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#include <openssl/objects.h>
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#include <openssl/engine.h>
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#include <openssl/rand.h>
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#ifndef OPENSSL_NO_RSA
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# include <openssl/rsa.h>
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#endif
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#include <openssl/bn.h>
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#ifndef OPENSSL_NO_HW
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# ifndef OPENSSL_NO_HW_4758_CCA
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# ifdef FLAT_INC
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# include "hw_4758_cca.h"
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# else
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# include "vendor_defns/hw_4758_cca.h"
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# endif
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# include "e_4758cca_err.c"
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static int ibm_4758_cca_destroy(ENGINE *e);
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static int ibm_4758_cca_init(ENGINE *e);
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static int ibm_4758_cca_finish(ENGINE *e);
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static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p,
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void (*f) (void));
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/* rsa functions */
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/* -------------*/
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# ifndef OPENSSL_NO_RSA
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static int cca_rsa_pub_enc(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int cca_rsa_priv_dec(int flen, const unsigned char *from,
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unsigned char *to, RSA *rsa, int padding);
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static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
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unsigned char *sigret, unsigned int *siglen,
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const RSA *rsa);
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static int cca_rsa_verify(int dtype, const unsigned char *m,
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unsigned int m_len, const unsigned char *sigbuf,
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unsigned int siglen, const RSA *rsa);
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/* utility functions */
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/* ---------------------*/
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static EVP_PKEY *ibm_4758_load_privkey(ENGINE *, const char *,
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UI_METHOD *ui_method,
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void *callback_data);
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static EVP_PKEY *ibm_4758_load_pubkey(ENGINE *, const char *,
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UI_METHOD *ui_method,
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void *callback_data);
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static int getModulusAndExponent(const unsigned char *token,
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long *exponentLength,
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unsigned char *exponent, long *modulusLength,
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long *modulusFieldLength,
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unsigned char *modulus);
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# endif
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/* RAND number functions */
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/* ---------------------*/
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static int cca_get_random_bytes(unsigned char *, int);
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static int cca_random_status(void);
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# ifndef OPENSSL_NO_RSA
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static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad,
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int idx, long argl, void *argp);
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# endif
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/* Function pointers for CCA verbs */
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/* -------------------------------*/
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# ifndef OPENSSL_NO_RSA
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static F_KEYRECORDREAD keyRecordRead;
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static F_DIGITALSIGNATUREGENERATE digitalSignatureGenerate;
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static F_DIGITALSIGNATUREVERIFY digitalSignatureVerify;
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static F_PUBLICKEYEXTRACT publicKeyExtract;
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static F_PKAENCRYPT pkaEncrypt;
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static F_PKADECRYPT pkaDecrypt;
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# endif
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static F_RANDOMNUMBERGENERATE randomNumberGenerate;
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/* static variables */
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/* ----------------*/
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static const char *CCA4758_LIB_NAME = NULL;
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static const char *get_CCA4758_LIB_NAME(void)
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{
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if (CCA4758_LIB_NAME)
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return CCA4758_LIB_NAME;
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return CCA_LIB_NAME;
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}
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static void free_CCA4758_LIB_NAME(void)
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{
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if (CCA4758_LIB_NAME)
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OPENSSL_free((void *)CCA4758_LIB_NAME);
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CCA4758_LIB_NAME = NULL;
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}
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static long set_CCA4758_LIB_NAME(const char *name)
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{
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free_CCA4758_LIB_NAME();
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return (((CCA4758_LIB_NAME = BUF_strdup(name)) != NULL) ? 1 : 0);
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}
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# ifndef OPENSSL_NO_RSA
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static const char *n_keyRecordRead = CSNDKRR;
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static const char *n_digitalSignatureGenerate = CSNDDSG;
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static const char *n_digitalSignatureVerify = CSNDDSV;
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static const char *n_publicKeyExtract = CSNDPKX;
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static const char *n_pkaEncrypt = CSNDPKE;
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static const char *n_pkaDecrypt = CSNDPKD;
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# endif
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static const char *n_randomNumberGenerate = CSNBRNG;
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# ifndef OPENSSL_NO_RSA
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static int hndidx = -1;
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# endif
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static DSO *dso = NULL;
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/* openssl engine initialization structures */
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/* ----------------------------------------*/
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# define CCA4758_CMD_SO_PATH ENGINE_CMD_BASE
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static const ENGINE_CMD_DEFN cca4758_cmd_defns[] = {
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{CCA4758_CMD_SO_PATH,
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"SO_PATH",
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"Specifies the path to the '4758cca' shared library",
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ENGINE_CMD_FLAG_STRING},
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{0, NULL, NULL, 0}
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};
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# ifndef OPENSSL_NO_RSA
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static RSA_METHOD ibm_4758_cca_rsa = {
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"IBM 4758 CCA RSA method",
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cca_rsa_pub_enc,
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NULL,
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NULL,
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cca_rsa_priv_dec,
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NULL, /* rsa_mod_exp, */
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NULL, /* mod_exp_mont, */
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NULL, /* init */
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NULL, /* finish */
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RSA_FLAG_SIGN_VER, /* flags */
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NULL, /* app_data */
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cca_rsa_sign, /* rsa_sign */
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cca_rsa_verify, /* rsa_verify */
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NULL /* rsa_keygen */
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};
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# endif
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static RAND_METHOD ibm_4758_cca_rand = {
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/* "IBM 4758 RAND method", */
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NULL, /* seed */
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cca_get_random_bytes, /* get random bytes from the card */
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NULL, /* cleanup */
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NULL, /* add */
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cca_get_random_bytes, /* pseudo rand */
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cca_random_status, /* status */
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};
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static const char *engine_4758_cca_id = "4758cca";
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static const char *engine_4758_cca_name =
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"IBM 4758 CCA hardware engine support";
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# ifndef OPENSSL_NO_DYNAMIC_ENGINE
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/* Compatibility hack, the dynamic library uses this form in the path */
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static const char *engine_4758_cca_id_alt = "4758_cca";
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# endif
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/* engine implementation */
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/* ---------------------*/
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static int bind_helper(ENGINE *e)
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{
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if (!ENGINE_set_id(e, engine_4758_cca_id) ||
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!ENGINE_set_name(e, engine_4758_cca_name) ||
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# ifndef OPENSSL_NO_RSA
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!ENGINE_set_RSA(e, &ibm_4758_cca_rsa) ||
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# endif
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!ENGINE_set_RAND(e, &ibm_4758_cca_rand) ||
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!ENGINE_set_destroy_function(e, ibm_4758_cca_destroy) ||
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!ENGINE_set_init_function(e, ibm_4758_cca_init) ||
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!ENGINE_set_finish_function(e, ibm_4758_cca_finish) ||
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!ENGINE_set_ctrl_function(e, ibm_4758_cca_ctrl) ||
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# ifndef OPENSSL_NO_RSA
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!ENGINE_set_load_privkey_function(e, ibm_4758_load_privkey) ||
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!ENGINE_set_load_pubkey_function(e, ibm_4758_load_pubkey) ||
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# endif
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!ENGINE_set_cmd_defns(e, cca4758_cmd_defns))
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return 0;
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/* Ensure the error handling is set up */
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ERR_load_CCA4758_strings();
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return 1;
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}
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# ifdef OPENSSL_NO_DYNAMIC_ENGINE
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static ENGINE *engine_4758_cca(void)
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{
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ENGINE *ret = ENGINE_new();
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if (!ret)
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return NULL;
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if (!bind_helper(ret)) {
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ENGINE_free(ret);
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return NULL;
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}
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return ret;
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}
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void ENGINE_load_4758cca(void)
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{
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ENGINE *e_4758 = engine_4758_cca();
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if (!e_4758)
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return;
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ENGINE_add(e_4758);
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ENGINE_free(e_4758);
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ERR_clear_error();
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}
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# endif
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static int ibm_4758_cca_destroy(ENGINE *e)
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{
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ERR_unload_CCA4758_strings();
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free_CCA4758_LIB_NAME();
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return 1;
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}
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static int ibm_4758_cca_init(ENGINE *e)
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{
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if (dso) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_INIT, CCA4758_R_ALREADY_LOADED);
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goto err;
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}
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dso = DSO_load(NULL, get_CCA4758_LIB_NAME(), NULL, 0);
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if (!dso) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_INIT, CCA4758_R_DSO_FAILURE);
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goto err;
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}
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# ifndef OPENSSL_NO_RSA
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if (!(keyRecordRead = (F_KEYRECORDREAD)
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DSO_bind_func(dso, n_keyRecordRead)) ||
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!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
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DSO_bind_func(dso, n_randomNumberGenerate)) ||
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!(digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE)
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DSO_bind_func(dso, n_digitalSignatureGenerate)) ||
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!(digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)
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DSO_bind_func(dso, n_digitalSignatureVerify)) ||
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!(publicKeyExtract = (F_PUBLICKEYEXTRACT)
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DSO_bind_func(dso, n_publicKeyExtract)) ||
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!(pkaEncrypt = (F_PKAENCRYPT)
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DSO_bind_func(dso, n_pkaEncrypt)) || !(pkaDecrypt = (F_PKADECRYPT)
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DSO_bind_func(dso,
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n_pkaDecrypt)))
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{
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CCA4758err(CCA4758_F_IBM_4758_CCA_INIT, CCA4758_R_DSO_FAILURE);
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goto err;
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}
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# else
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if (!(randomNumberGenerate = (F_RANDOMNUMBERGENERATE)
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DSO_bind_func(dso, n_randomNumberGenerate))) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_INIT, CCA4758_R_DSO_FAILURE);
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goto err;
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}
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# endif
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# ifndef OPENSSL_NO_RSA
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hndidx = RSA_get_ex_new_index(0, "IBM 4758 CCA RSA key handle",
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NULL, NULL, cca_ex_free);
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# endif
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return 1;
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err:
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if (dso)
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DSO_free(dso);
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dso = NULL;
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# ifndef OPENSSL_NO_RSA
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keyRecordRead = (F_KEYRECORDREAD) 0;
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digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE) 0;
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digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
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publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
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pkaEncrypt = (F_PKAENCRYPT) 0;
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pkaDecrypt = (F_PKADECRYPT) 0;
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# endif
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randomNumberGenerate = (F_RANDOMNUMBERGENERATE) 0;
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return 0;
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}
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static int ibm_4758_cca_finish(ENGINE *e)
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{
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free_CCA4758_LIB_NAME();
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if (!dso) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH, CCA4758_R_NOT_LOADED);
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return 0;
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}
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if (!DSO_free(dso)) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_FINISH, CCA4758_R_UNIT_FAILURE);
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return 0;
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}
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dso = NULL;
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# ifndef OPENSSL_NO_RSA
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keyRecordRead = (F_KEYRECORDREAD) 0;
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randomNumberGenerate = (F_RANDOMNUMBERGENERATE) 0;
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digitalSignatureGenerate = (F_DIGITALSIGNATUREGENERATE) 0;
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digitalSignatureVerify = (F_DIGITALSIGNATUREVERIFY)0;
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publicKeyExtract = (F_PUBLICKEYEXTRACT)0;
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pkaEncrypt = (F_PKAENCRYPT) 0;
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pkaDecrypt = (F_PKADECRYPT) 0;
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# endif
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randomNumberGenerate = (F_RANDOMNUMBERGENERATE) 0;
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return 1;
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}
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static int ibm_4758_cca_ctrl(ENGINE *e, int cmd, long i, void *p,
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void (*f) (void))
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{
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int initialised = ((dso == NULL) ? 0 : 1);
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switch (cmd) {
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case CCA4758_CMD_SO_PATH:
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if (p == NULL) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
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ERR_R_PASSED_NULL_PARAMETER);
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return 0;
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}
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if (initialised) {
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CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL, CCA4758_R_ALREADY_LOADED);
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return 0;
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}
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return set_CCA4758_LIB_NAME((const char *)p);
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default:
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break;
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}
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CCA4758err(CCA4758_F_IBM_4758_CCA_CTRL,
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CCA4758_R_COMMAND_NOT_IMPLEMENTED);
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return 0;
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}
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# ifndef OPENSSL_NO_RSA
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# define MAX_CCA_PKA_TOKEN_SIZE 2500
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static EVP_PKEY *ibm_4758_load_privkey(ENGINE *e, const char *key_id,
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UI_METHOD *ui_method,
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void *callback_data)
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{
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RSA *rtmp = NULL;
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EVP_PKEY *res = NULL;
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unsigned char *keyToken = NULL;
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unsigned char pubKeyToken[MAX_CCA_PKA_TOKEN_SIZE];
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long pubKeyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
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long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
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long returnCode;
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long reasonCode;
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long exitDataLength = 0;
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long ruleArrayLength = 0;
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unsigned char exitData[8];
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unsigned char ruleArray[8];
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unsigned char keyLabel[64];
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unsigned long keyLabelLength = strlen(key_id);
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unsigned char modulus[256];
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long modulusFieldLength = sizeof(modulus);
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long modulusLength = 0;
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unsigned char exponent[256];
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long exponentLength = sizeof(exponent);
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if (keyLabelLength > sizeof(keyLabel)) {
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CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
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CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
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return NULL;
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}
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memset(keyLabel, ' ', sizeof(keyLabel));
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memcpy(keyLabel, key_id, keyLabelLength);
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keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
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if (!keyToken) {
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CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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keyRecordRead(&returnCode, &reasonCode, &exitDataLength,
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exitData, &ruleArrayLength, ruleArray, keyLabel,
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&keyTokenLength, keyToken + sizeof(long));
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if (returnCode) {
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CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
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CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
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goto err;
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}
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publicKeyExtract(&returnCode, &reasonCode, &exitDataLength,
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exitData, &ruleArrayLength, ruleArray, &keyTokenLength,
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keyToken + sizeof(long), &pubKeyTokenLength,
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pubKeyToken);
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if (returnCode) {
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CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
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CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
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goto err;
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}
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if (!getModulusAndExponent(pubKeyToken, &exponentLength,
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exponent, &modulusLength, &modulusFieldLength,
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modulus)) {
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CCA4758err(CCA4758_F_IBM_4758_LOAD_PRIVKEY,
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CCA4758_R_FAILED_LOADING_PRIVATE_KEY);
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goto err;
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}
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(*(long *)keyToken) = keyTokenLength;
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rtmp = RSA_new_method(e);
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RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
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rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
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rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
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rtmp->flags |= RSA_FLAG_EXT_PKEY;
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res = EVP_PKEY_new();
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EVP_PKEY_assign_RSA(res, rtmp);
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|
|
return res;
|
|
err:
|
|
if (keyToken)
|
|
OPENSSL_free(keyToken);
|
|
return NULL;
|
|
}
|
|
|
|
static EVP_PKEY *ibm_4758_load_pubkey(ENGINE *e, const char *key_id,
|
|
UI_METHOD *ui_method,
|
|
void *callback_data)
|
|
{
|
|
RSA *rtmp = NULL;
|
|
EVP_PKEY *res = NULL;
|
|
unsigned char *keyToken = NULL;
|
|
long keyTokenLength = MAX_CCA_PKA_TOKEN_SIZE;
|
|
long returnCode;
|
|
long reasonCode;
|
|
long exitDataLength = 0;
|
|
long ruleArrayLength = 0;
|
|
unsigned char exitData[8];
|
|
unsigned char ruleArray[8];
|
|
unsigned char keyLabel[64];
|
|
unsigned long keyLabelLength = strlen(key_id);
|
|
unsigned char modulus[512];
|
|
long modulusFieldLength = sizeof(modulus);
|
|
long modulusLength = 0;
|
|
unsigned char exponent[512];
|
|
long exponentLength = sizeof(exponent);
|
|
|
|
if (keyLabelLength > sizeof(keyLabel)) {
|
|
CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
|
|
CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
|
return NULL;
|
|
}
|
|
|
|
memset(keyLabel, ' ', sizeof(keyLabel));
|
|
memcpy(keyLabel, key_id, keyLabelLength);
|
|
|
|
keyToken = OPENSSL_malloc(MAX_CCA_PKA_TOKEN_SIZE + sizeof(long));
|
|
if (!keyToken) {
|
|
CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY, ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
|
|
keyRecordRead(&returnCode, &reasonCode, &exitDataLength, exitData,
|
|
&ruleArrayLength, ruleArray, keyLabel, &keyTokenLength,
|
|
keyToken + sizeof(long));
|
|
|
|
if (returnCode) {
|
|
CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY, ERR_R_MALLOC_FAILURE);
|
|
goto err;
|
|
}
|
|
|
|
if (!getModulusAndExponent(keyToken + sizeof(long), &exponentLength,
|
|
exponent, &modulusLength, &modulusFieldLength,
|
|
modulus)) {
|
|
CCA4758err(CCA4758_F_IBM_4758_LOAD_PUBKEY,
|
|
CCA4758_R_FAILED_LOADING_PUBLIC_KEY);
|
|
goto err;
|
|
}
|
|
|
|
(*(long *)keyToken) = keyTokenLength;
|
|
rtmp = RSA_new_method(e);
|
|
RSA_set_ex_data(rtmp, hndidx, (char *)keyToken);
|
|
rtmp->e = BN_bin2bn(exponent, exponentLength, NULL);
|
|
rtmp->n = BN_bin2bn(modulus, modulusFieldLength, NULL);
|
|
rtmp->flags |= RSA_FLAG_EXT_PKEY;
|
|
res = EVP_PKEY_new();
|
|
EVP_PKEY_assign_RSA(res, rtmp);
|
|
|
|
return res;
|
|
err:
|
|
if (keyToken)
|
|
OPENSSL_free(keyToken);
|
|
return NULL;
|
|
}
|
|
|
|
static int cca_rsa_pub_enc(int flen, const unsigned char *from,
|
|
unsigned char *to, RSA *rsa, int padding)
|
|
{
|
|
long returnCode;
|
|
long reasonCode;
|
|
long lflen = flen;
|
|
long exitDataLength = 0;
|
|
unsigned char exitData[8];
|
|
long ruleArrayLength = 1;
|
|
unsigned char ruleArray[8] = "PKCS-1.2";
|
|
long dataStructureLength = 0;
|
|
unsigned char dataStructure[8];
|
|
long outputLength = RSA_size(rsa);
|
|
long keyTokenLength;
|
|
unsigned char *keyToken = (unsigned char *)RSA_get_ex_data(rsa, hndidx);
|
|
|
|
keyTokenLength = *(long *)keyToken;
|
|
keyToken += sizeof(long);
|
|
|
|
pkaEncrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
|
|
&ruleArrayLength, ruleArray, &lflen, (unsigned char *)from,
|
|
&dataStructureLength, dataStructure, &keyTokenLength,
|
|
keyToken, &outputLength, to);
|
|
|
|
if (returnCode || reasonCode)
|
|
return -(returnCode << 16 | reasonCode);
|
|
return outputLength;
|
|
}
|
|
|
|
static int cca_rsa_priv_dec(int flen, const unsigned char *from,
|
|
unsigned char *to, RSA *rsa, int padding)
|
|
{
|
|
long returnCode;
|
|
long reasonCode;
|
|
long lflen = flen;
|
|
long exitDataLength = 0;
|
|
unsigned char exitData[8];
|
|
long ruleArrayLength = 1;
|
|
unsigned char ruleArray[8] = "PKCS-1.2";
|
|
long dataStructureLength = 0;
|
|
unsigned char dataStructure[8];
|
|
long outputLength = RSA_size(rsa);
|
|
long keyTokenLength;
|
|
unsigned char *keyToken = (unsigned char *)RSA_get_ex_data(rsa, hndidx);
|
|
|
|
keyTokenLength = *(long *)keyToken;
|
|
keyToken += sizeof(long);
|
|
|
|
pkaDecrypt(&returnCode, &reasonCode, &exitDataLength, exitData,
|
|
&ruleArrayLength, ruleArray, &lflen, (unsigned char *)from,
|
|
&dataStructureLength, dataStructure, &keyTokenLength,
|
|
keyToken, &outputLength, to);
|
|
|
|
return (returnCode | reasonCode) ? 0 : 1;
|
|
}
|
|
|
|
# define SSL_SIG_LEN 36
|
|
|
|
static int cca_rsa_verify(int type, const unsigned char *m,
|
|
unsigned int m_len, const unsigned char *sigbuf,
|
|
unsigned int siglen, const RSA *rsa)
|
|
{
|
|
long returnCode;
|
|
long reasonCode;
|
|
long lsiglen = siglen;
|
|
long exitDataLength = 0;
|
|
unsigned char exitData[8];
|
|
long ruleArrayLength = 1;
|
|
unsigned char ruleArray[8] = "PKCS-1.1";
|
|
long keyTokenLength;
|
|
unsigned char *keyToken = (unsigned char *)RSA_get_ex_data(rsa, hndidx);
|
|
long length = SSL_SIG_LEN;
|
|
long keyLength;
|
|
unsigned char *hashBuffer = NULL;
|
|
X509_SIG sig;
|
|
ASN1_TYPE parameter;
|
|
X509_ALGOR algorithm;
|
|
ASN1_OCTET_STRING digest;
|
|
|
|
keyTokenLength = *(long *)keyToken;
|
|
keyToken += sizeof(long);
|
|
|
|
if (type == NID_md5 || type == NID_sha1) {
|
|
sig.algor = &algorithm;
|
|
algorithm.algorithm = OBJ_nid2obj(type);
|
|
|
|
if (!algorithm.algorithm) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
|
|
CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!algorithm.algorithm->length) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
|
|
CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
|
|
return 0;
|
|
}
|
|
|
|
parameter.type = V_ASN1_NULL;
|
|
parameter.value.ptr = NULL;
|
|
algorithm.parameter = ¶meter;
|
|
|
|
sig.digest = &digest;
|
|
sig.digest->data = (unsigned char *)m;
|
|
sig.digest->length = m_len;
|
|
|
|
length = i2d_X509_SIG(&sig, NULL);
|
|
}
|
|
|
|
keyLength = RSA_size(rsa);
|
|
|
|
if (length - RSA_PKCS1_PADDING > keyLength) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
|
|
CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
|
|
switch (type) {
|
|
case NID_md5_sha1:
|
|
if (m_len != SSL_SIG_LEN) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY,
|
|
CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
|
|
hashBuffer = (unsigned char *)m;
|
|
length = m_len;
|
|
break;
|
|
case NID_md5:
|
|
{
|
|
unsigned char *ptr;
|
|
ptr = hashBuffer = OPENSSL_malloc((unsigned int)keyLength + 1);
|
|
if (!hashBuffer) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
|
|
i2d_X509_SIG(&sig, &ptr);
|
|
}
|
|
break;
|
|
case NID_sha1:
|
|
{
|
|
unsigned char *ptr;
|
|
ptr = hashBuffer = OPENSSL_malloc((unsigned int)keyLength + 1);
|
|
if (!hashBuffer) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_VERIFY, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
i2d_X509_SIG(&sig, &ptr);
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
digitalSignatureVerify(&returnCode, &reasonCode, &exitDataLength,
|
|
exitData, &ruleArrayLength, ruleArray,
|
|
&keyTokenLength, keyToken, &length, hashBuffer,
|
|
&lsiglen, (unsigned char *)sigbuf);
|
|
|
|
if (type == NID_sha1 || type == NID_md5) {
|
|
OPENSSL_cleanse(hashBuffer, keyLength + 1);
|
|
OPENSSL_free(hashBuffer);
|
|
}
|
|
|
|
return ((returnCode || reasonCode) ? 0 : 1);
|
|
}
|
|
|
|
# define SSL_SIG_LEN 36
|
|
|
|
static int cca_rsa_sign(int type, const unsigned char *m, unsigned int m_len,
|
|
unsigned char *sigret, unsigned int *siglen,
|
|
const RSA *rsa)
|
|
{
|
|
long returnCode;
|
|
long reasonCode;
|
|
long exitDataLength = 0;
|
|
unsigned char exitData[8];
|
|
long ruleArrayLength = 1;
|
|
unsigned char ruleArray[8] = "PKCS-1.1";
|
|
long outputLength = 256;
|
|
long outputBitLength;
|
|
long keyTokenLength;
|
|
unsigned char *hashBuffer = NULL;
|
|
unsigned char *keyToken = (unsigned char *)RSA_get_ex_data(rsa, hndidx);
|
|
long length = SSL_SIG_LEN;
|
|
long keyLength;
|
|
X509_SIG sig;
|
|
ASN1_TYPE parameter;
|
|
X509_ALGOR algorithm;
|
|
ASN1_OCTET_STRING digest;
|
|
|
|
keyTokenLength = *(long *)keyToken;
|
|
keyToken += sizeof(long);
|
|
|
|
if (type == NID_md5 || type == NID_sha1) {
|
|
sig.algor = &algorithm;
|
|
algorithm.algorithm = OBJ_nid2obj(type);
|
|
|
|
if (!algorithm.algorithm) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN,
|
|
CCA4758_R_UNKNOWN_ALGORITHM_TYPE);
|
|
return 0;
|
|
}
|
|
|
|
if (!algorithm.algorithm->length) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN,
|
|
CCA4758_R_ASN1_OID_UNKNOWN_FOR_MD);
|
|
return 0;
|
|
}
|
|
|
|
parameter.type = V_ASN1_NULL;
|
|
parameter.value.ptr = NULL;
|
|
algorithm.parameter = ¶meter;
|
|
|
|
sig.digest = &digest;
|
|
sig.digest->data = (unsigned char *)m;
|
|
sig.digest->length = m_len;
|
|
|
|
length = i2d_X509_SIG(&sig, NULL);
|
|
}
|
|
|
|
keyLength = RSA_size(rsa);
|
|
|
|
if (length - RSA_PKCS1_PADDING > keyLength) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN,
|
|
CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
|
|
switch (type) {
|
|
case NID_md5_sha1:
|
|
if (m_len != SSL_SIG_LEN) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN,
|
|
CCA4758_R_SIZE_TOO_LARGE_OR_TOO_SMALL);
|
|
return 0;
|
|
}
|
|
hashBuffer = (unsigned char *)m;
|
|
length = m_len;
|
|
break;
|
|
case NID_md5:
|
|
{
|
|
unsigned char *ptr;
|
|
ptr = hashBuffer = OPENSSL_malloc((unsigned int)keyLength + 1);
|
|
if (!hashBuffer) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
i2d_X509_SIG(&sig, &ptr);
|
|
}
|
|
break;
|
|
case NID_sha1:
|
|
{
|
|
unsigned char *ptr;
|
|
ptr = hashBuffer = OPENSSL_malloc((unsigned int)keyLength + 1);
|
|
if (!hashBuffer) {
|
|
CCA4758err(CCA4758_F_CCA_RSA_SIGN, ERR_R_MALLOC_FAILURE);
|
|
return 0;
|
|
}
|
|
i2d_X509_SIG(&sig, &ptr);
|
|
}
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
|
|
digitalSignatureGenerate(&returnCode, &reasonCode, &exitDataLength,
|
|
exitData, &ruleArrayLength, ruleArray,
|
|
&keyTokenLength, keyToken, &length, hashBuffer,
|
|
&outputLength, &outputBitLength, sigret);
|
|
|
|
if (type == NID_sha1 || type == NID_md5) {
|
|
OPENSSL_cleanse(hashBuffer, keyLength + 1);
|
|
OPENSSL_free(hashBuffer);
|
|
}
|
|
|
|
*siglen = outputLength;
|
|
|
|
return ((returnCode || reasonCode) ? 0 : 1);
|
|
}
|
|
|
|
static int getModulusAndExponent(const unsigned char *token,
|
|
long *exponentLength,
|
|
unsigned char *exponent, long *modulusLength,
|
|
long *modulusFieldLength,
|
|
unsigned char *modulus)
|
|
{
|
|
unsigned long len;
|
|
|
|
if (*token++ != (char)0x1E) /* internal PKA token? */
|
|
return 0;
|
|
|
|
if (*token++) /* token version must be zero */
|
|
return 0;
|
|
|
|
len = *token++;
|
|
len = len << 8;
|
|
len |= (unsigned char)*token++;
|
|
|
|
token += 4; /* skip reserved bytes */
|
|
|
|
if (*token++ == (char)0x04) {
|
|
if (*token++) /* token version must be zero */
|
|
return 0;
|
|
|
|
len = *token++;
|
|
len = len << 8;
|
|
len |= (unsigned char)*token++;
|
|
|
|
token += 2; /* skip reserved section */
|
|
|
|
len = *token++;
|
|
len = len << 8;
|
|
len |= (unsigned char)*token++;
|
|
|
|
*exponentLength = len;
|
|
|
|
len = *token++;
|
|
len = len << 8;
|
|
len |= (unsigned char)*token++;
|
|
|
|
*modulusLength = len;
|
|
|
|
len = *token++;
|
|
len = len << 8;
|
|
len |= (unsigned char)*token++;
|
|
|
|
*modulusFieldLength = len;
|
|
|
|
memcpy(exponent, token, *exponentLength);
|
|
token += *exponentLength;
|
|
|
|
memcpy(modulus, token, *modulusFieldLength);
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
# endif /* OPENSSL_NO_RSA */
|
|
|
|
static int cca_random_status(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static int cca_get_random_bytes(unsigned char *buf, int num)
|
|
{
|
|
long ret_code;
|
|
long reason_code;
|
|
long exit_data_length;
|
|
unsigned char exit_data[4];
|
|
unsigned char form[] = "RANDOM ";
|
|
unsigned char rand_buf[8];
|
|
|
|
while (num >= (int)sizeof(rand_buf)) {
|
|
randomNumberGenerate(&ret_code, &reason_code, &exit_data_length,
|
|
exit_data, form, rand_buf);
|
|
if (ret_code)
|
|
return 0;
|
|
num -= sizeof(rand_buf);
|
|
memcpy(buf, rand_buf, sizeof(rand_buf));
|
|
buf += sizeof(rand_buf);
|
|
}
|
|
|
|
if (num) {
|
|
randomNumberGenerate(&ret_code, &reason_code, NULL, NULL,
|
|
form, rand_buf);
|
|
if (ret_code)
|
|
return 0;
|
|
memcpy(buf, rand_buf, num);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
# ifndef OPENSSL_NO_RSA
|
|
static void cca_ex_free(void *obj, void *item, CRYPTO_EX_DATA *ad, int idx,
|
|
long argl, void *argp)
|
|
{
|
|
if (item)
|
|
OPENSSL_free(item);
|
|
}
|
|
# endif
|
|
|
|
/* Goo to handle building as a dynamic engine */
|
|
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
|
|
static int bind_fn(ENGINE *e, const char *id)
|
|
{
|
|
if (id && (strcmp(id, engine_4758_cca_id) != 0) &&
|
|
(strcmp(id, engine_4758_cca_id_alt) != 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 */
|
|
# endif /* !OPENSSL_NO_HW_4758_CCA */
|
|
#endif /* !OPENSSL_NO_HW */
|