mirror of https://github.com/openssl/openssl.git
495 lines
12 KiB
C
495 lines
12 KiB
C
/* ====================================================================
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* Copyright (c) 2011 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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#ifndef FIPS_UTL_H
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#define FIPS_UTL_H
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#define OPENSSL_FIPSAPI
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#include <openssl/fips_rand.h>
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#include <openssl/objects.h>
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#ifdef OPENSSL_SYS_WIN32
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#define RESP_EOL "\n"
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#else
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#define RESP_EOL "\r\n"
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#endif
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#ifndef FIPS_AUTH_OFFICER_PASS
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#define FIPS_AUTH_OFFICER_PASS "Default FIPS Crypto Officer Password"
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#endif
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#ifndef FIPS_AUTH_USER_PASS
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#define FIPS_AUTH_USER_PASS "Default FIPS Crypto User Password"
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#endif
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int hex2bin(const char *in, unsigned char *out);
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unsigned char *hex2bin_m(const char *in, long *plen);
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int do_hex2bn(BIGNUM **pr, const char *in);
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int do_bn_print(FILE *out, const BIGNUM *bn);
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int do_bn_print_name(FILE *out, const char *name, const BIGNUM *bn);
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int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf);
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int parse_line2(char **pkw, char **pval, char *linebuf, char *olinebuf, int eol);
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BIGNUM *hex2bn(const char *in);
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int tidy_line(char *linebuf, char *olinebuf);
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int copy_line(const char *in, FILE *ofp);
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int bint2bin(const char *in, int len, unsigned char *out);
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int bin2bint(const unsigned char *in,int len,char *out);
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void PrintValue(char *tag, unsigned char *val, int len);
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void OutputValue(char *tag, unsigned char *val, int len, FILE *rfp,int bitmode);
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void fips_algtest_init(void);
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void do_entropy_stick(void);
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int fips_strncasecmp(const char *str1, const char *str2, size_t n);
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int fips_strcasecmp(const char *str1, const char *str2);
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static int no_err;
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static void put_err_cb(int lib, int func,int reason,const char *file,int line)
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{
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if (no_err)
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return;
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fprintf(stderr, "ERROR:%08lX:lib=%d,func=%d,reason=%d"
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":file=%s:line=%d\n",
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ERR_PACK(lib, func, reason),
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lib, func, reason, file, line);
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}
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static void add_err_cb(int num, va_list args)
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{
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int i;
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char *str;
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if (no_err)
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return;
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fputs("\t", stderr);
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for (i = 0; i < num; i++)
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{
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str = va_arg(args, char *);
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if (str)
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fputs(str, stderr);
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}
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fputs("\n", stderr);
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}
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/* Dummy Entropy to keep DRBG happy. WARNING: THIS IS TOTALLY BOGUS
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* HAS ZERO SECURITY AND MUST NOT BE USED IN REAL APPLICATIONS.
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*/
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static unsigned char dummy_entropy[1024];
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static size_t dummy_cb(DRBG_CTX *ctx, unsigned char **pout,
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int entropy, size_t min_len, size_t max_len)
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{
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*pout = dummy_entropy;
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return min_len;
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}
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static int entropy_stick = 0;
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static void fips_algtest_init_nofips(void)
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{
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DRBG_CTX *ctx;
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size_t i;
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FIPS_set_error_callbacks(put_err_cb, add_err_cb);
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for (i = 0; i < sizeof(dummy_entropy); i++)
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dummy_entropy[i] = i & 0xff;
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if (entropy_stick)
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memcpy(dummy_entropy + 32, dummy_entropy + 16, 16);
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ctx = FIPS_get_default_drbg();
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FIPS_drbg_init(ctx, NID_aes_256_ctr, DRBG_FLAG_CTR_USE_DF);
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FIPS_drbg_set_callbacks(ctx, dummy_cb, 0, 16, dummy_cb, 0);
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FIPS_drbg_instantiate(ctx, dummy_entropy, 10);
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FIPS_rand_set_method(FIPS_drbg_method());
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}
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void do_entropy_stick(void)
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{
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entropy_stick = 1;
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}
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void fips_algtest_init(void)
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{
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fips_algtest_init_nofips();
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if (!FIPS_module_mode_set(1, FIPS_AUTH_USER_PASS))
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{
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fprintf(stderr, "Error entering FIPS mode\n");
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exit(1);
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}
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}
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int hex2bin(const char *in, unsigned char *out)
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{
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int n1, n2, isodd = 0;
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unsigned char ch;
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n1 = strlen(in);
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if (in[n1 - 1] == '\n')
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n1--;
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if (n1 & 1)
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isodd = 1;
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for (n1=0,n2=0 ; in[n1] && in[n1] != '\n' ; )
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{ /* first byte */
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if ((in[n1] >= '0') && (in[n1] <= '9'))
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ch = in[n1++] - '0';
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else if ((in[n1] >= 'A') && (in[n1] <= 'F'))
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ch = in[n1++] - 'A' + 10;
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else if ((in[n1] >= 'a') && (in[n1] <= 'f'))
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ch = in[n1++] - 'a' + 10;
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else
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return -1;
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if(!in[n1])
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{
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out[n2++]=ch;
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break;
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}
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/* If input is odd length first digit is least significant: assumes
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* all digits valid hex and null terminated which is true for the
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* strings we pass.
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*/
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if (n1 == 1 && isodd)
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{
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out[n2++] = ch;
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continue;
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}
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out[n2] = ch << 4;
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/* second byte */
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if ((in[n1] >= '0') && (in[n1] <= '9'))
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ch = in[n1++] - '0';
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else if ((in[n1] >= 'A') && (in[n1] <= 'F'))
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ch = in[n1++] - 'A' + 10;
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else if ((in[n1] >= 'a') && (in[n1] <= 'f'))
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ch = in[n1++] - 'a' + 10;
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else
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return -1;
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out[n2++] |= ch;
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}
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return n2;
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}
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unsigned char *hex2bin_m(const char *in, long *plen)
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{
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unsigned char *p;
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if (strlen(in) == 0)
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{
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*plen = 0;
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return OPENSSL_malloc(1);
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}
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p = OPENSSL_malloc((strlen(in) + 1)/2);
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*plen = hex2bin(in, p);
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return p;
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}
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int do_hex2bn(BIGNUM **pr, const char *in)
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{
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unsigned char *p;
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long plen;
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int r = 0;
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p = hex2bin_m(in, &plen);
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if (!p)
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return 0;
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if (!*pr)
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*pr = BN_new();
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if (!*pr)
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return 0;
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if (BN_bin2bn(p, plen, *pr))
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r = 1;
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OPENSSL_free(p);
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return r;
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}
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int do_bn_print(FILE *out, const BIGNUM *bn)
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{
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int len, i;
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unsigned char *tmp;
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len = BN_num_bytes(bn);
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if (len == 0)
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{
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fputs("00", out);
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return 1;
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}
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tmp = OPENSSL_malloc(len);
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if (!tmp)
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{
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fprintf(stderr, "Memory allocation error\n");
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return 0;
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}
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BN_bn2bin(bn, tmp);
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for (i = 0; i < len; i++)
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fprintf(out, "%02x", tmp[i]);
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OPENSSL_free(tmp);
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return 1;
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}
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int do_bn_print_name(FILE *out, const char *name, const BIGNUM *bn)
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{
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int r;
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fprintf(out, "%s = ", name);
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r = do_bn_print(out, bn);
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if (!r)
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return 0;
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fputs(RESP_EOL, out);
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return 1;
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}
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int parse_line(char **pkw, char **pval, char *linebuf, char *olinebuf)
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{
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return parse_line2(pkw, pval, linebuf, olinebuf, 1);
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}
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int parse_line2(char **pkw, char **pval, char *linebuf, char *olinebuf, int eol)
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{
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char *keyword, *value, *p, *q;
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strcpy(linebuf, olinebuf);
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keyword = linebuf;
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/* Skip leading space */
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while (isspace((unsigned char)*keyword))
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keyword++;
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/* Look for = sign */
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p = strchr(linebuf, '=');
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/* If no '=' exit */
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if (!p)
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return 0;
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q = p - 1;
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/* Remove trailing space */
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while (isspace((unsigned char)*q))
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*q-- = 0;
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*p = 0;
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value = p + 1;
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/* Remove leading space from value */
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while (isspace((unsigned char)*value))
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value++;
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/* Remove trailing space from value */
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p = value + strlen(value) - 1;
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if (eol && *p != '\n')
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fprintf(stderr, "Warning: missing EOL\n");
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while (*p == '\n' || isspace((unsigned char)*p))
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*p-- = 0;
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*pkw = keyword;
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*pval = value;
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return 1;
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}
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BIGNUM *hex2bn(const char *in)
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{
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BIGNUM *p=NULL;
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if (!do_hex2bn(&p, in))
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return NULL;
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return p;
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}
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/* To avoid extensive changes to test program at this stage just convert
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* the input line into an acceptable form. Keyword lines converted to form
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* "keyword = value\n" no matter what white space present, all other lines
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* just have leading and trailing space removed.
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*/
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int tidy_line(char *linebuf, char *olinebuf)
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{
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char *keyword, *value, *p, *q;
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strcpy(linebuf, olinebuf);
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keyword = linebuf;
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/* Skip leading space */
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while (isspace((unsigned char)*keyword))
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keyword++;
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/* Look for = sign */
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p = strchr(linebuf, '=');
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/* If no '=' just chop leading, trailing ws */
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if (!p)
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{
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p = keyword + strlen(keyword) - 1;
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while (*p == '\n' || isspace((unsigned char)*p))
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*p-- = 0;
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strcpy(olinebuf, keyword);
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strcat(olinebuf, "\n");
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return 1;
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}
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q = p - 1;
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/* Remove trailing space */
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while (isspace((unsigned char)*q))
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*q-- = 0;
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*p = 0;
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value = p + 1;
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/* Remove leading space from value */
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while (isspace((unsigned char)*value))
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value++;
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/* Remove trailing space from value */
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p = value + strlen(value) - 1;
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while (*p == '\n' || isspace((unsigned char)*p))
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*p-- = 0;
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strcpy(olinebuf, keyword);
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strcat(olinebuf, " = ");
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strcat(olinebuf, value);
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strcat(olinebuf, "\n");
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return 1;
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}
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/* Copy supplied line to ofp replacing \n with \r\n */
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int copy_line(const char *in, FILE *ofp)
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{
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const char *p;
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p = strchr(in, '\n');
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if (p)
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{
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fwrite(in, 1, (size_t)(p - in), ofp);
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fputs(RESP_EOL, ofp);
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}
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else
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fputs(in, ofp);
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return 1;
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}
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/* NB: this return the number of _bits_ read */
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int bint2bin(const char *in, int len, unsigned char *out)
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{
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int n;
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memset(out,0,len);
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for(n=0 ; n < len ; ++n)
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if(in[n] == '1')
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out[n/8]|=(0x80 >> (n%8));
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return len;
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}
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int bin2bint(const unsigned char *in,int len,char *out)
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{
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int n;
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for(n=0 ; n < len ; ++n)
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out[n]=(in[n/8]&(0x80 >> (n%8))) ? '1' : '0';
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return n;
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}
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/*-----------------------------------------------*/
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void PrintValue(char *tag, unsigned char *val, int len)
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{
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#ifdef VERBOSE
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OutputValue(tag, val, len, stdout, 0);
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#endif
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}
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void OutputValue(char *tag, unsigned char *val, int len, FILE *rfp,int bitmode)
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{
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char obuf[2048];
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int olen;
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if(bitmode)
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{
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olen=bin2bint(val,len,obuf);
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fprintf(rfp, "%s = %.*s" RESP_EOL, tag, olen, obuf);
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}
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else
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{
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int i;
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fprintf(rfp, "%s = ", tag);
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for (i = 0; i < len; i++)
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fprintf(rfp, "%02x", val[i]);
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fputs(RESP_EOL, rfp);
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}
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#if VERBOSE
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printf("%s = %.*s\n", tag, olen, obuf);
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#endif
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}
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/* Not all platforms support strcasecmp and strncasecmp: implement versions
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* in here to avoid need to include them in the validated module. Taken
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* from crypto/o_str.c written by Richard Levitte (richard@levitte.org)
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*/
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int fips_strncasecmp(const char *str1, const char *str2, size_t n)
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{
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while (*str1 && *str2 && n)
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{
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int res = toupper(*str1) - toupper(*str2);
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if (res) return res < 0 ? -1 : 1;
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str1++;
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str2++;
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n--;
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}
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if (n == 0)
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return 0;
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if (*str1)
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return 1;
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if (*str2)
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return -1;
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return 0;
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}
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int fips_strcasecmp(const char *str1, const char *str2)
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{
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return fips_strncasecmp(str1, str2, (size_t)-1);
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}
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#endif
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