416 lines
9.1 KiB
C
416 lines
9.1 KiB
C
/* fips/rand/fips_drbgvs.c */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project.
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*/
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/* ====================================================================
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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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* 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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#define OPENSSL_FIPSAPI
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_FIPS
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#include <stdio.h>
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int main(int argc, char **argv)
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{
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printf("No FIPS DRBG support\n");
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return(0);
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}
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#else
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#include <openssl/bn.h>
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#include <openssl/dsa.h>
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#include <openssl/fips.h>
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#include <openssl/fips_rand.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <string.h>
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#include <ctype.h>
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#include "fips_utl.h"
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static int dparse_md(char *str)
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{
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switch(atoi(str + 5))
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{
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case 1:
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return NID_sha1;
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case 224:
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return NID_sha224;
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case 256:
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return NID_sha256;
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case 384:
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return NID_sha384;
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case 512:
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return NID_sha512;
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}
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return NID_undef;
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}
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static int parse_ec(char *str)
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{
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int curve_nid, md_nid;
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char *md;
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md = strchr(str, ' ');
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if (!md)
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return NID_undef;
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if (!strncmp(str, "[P-256", 6))
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curve_nid = NID_X9_62_prime256v1;
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else if (!strncmp(str, "[P-384", 6))
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curve_nid = NID_secp384r1;
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else if (!strncmp(str, "[P-521", 6))
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curve_nid = NID_secp521r1;
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else
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return NID_undef;
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md_nid = dparse_md(md);
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if (md_nid == NID_undef)
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return NID_undef;
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return (curve_nid << 16) | md_nid;
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}
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static int parse_aes(char *str, int *pdf)
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{
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if (!strncmp(str + 9, "no", 2))
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*pdf = 0;
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else
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*pdf = DRBG_FLAG_CTR_USE_DF;
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switch(atoi(str + 5))
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{
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case 128:
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return NID_aes_128_ctr;
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case 192:
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return NID_aes_192_ctr;
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case 256:
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return NID_aes_256_ctr;
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default:
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return NID_undef;
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}
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}
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typedef struct
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{
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unsigned char *ent;
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size_t entlen;
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unsigned char *nonce;
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size_t noncelen;
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} TEST_ENT;
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static size_t test_entropy(DRBG_CTX *dctx, 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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TEST_ENT *t = FIPS_drbg_get_app_data(dctx);
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*pout = (unsigned char *)t->ent;
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return t->entlen;
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}
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static size_t test_nonce(DRBG_CTX *dctx, 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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TEST_ENT *t = FIPS_drbg_get_app_data(dctx);
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*pout = (unsigned char *)t->nonce;
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return t->noncelen;
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}
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#ifdef FIPS_ALGVS
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int fips_drbgvs_main(int argc,char **argv)
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#else
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int main(int argc,char **argv)
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#endif
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{
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FILE *in = NULL, *out = NULL;
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DRBG_CTX *dctx = NULL;
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TEST_ENT t;
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int r, nid = 0;
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int pr = 0;
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char buf[2048], lbuf[2048];
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unsigned char randout[2048];
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char *keyword = NULL, *value = NULL;
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unsigned char *ent = NULL, *nonce = NULL, *pers = NULL, *adin = NULL;
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long entlen, noncelen, perslen, adinlen;
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int df = 0;
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enum dtype { DRBG_NONE, DRBG_CTR, DRBG_HASH, DRBG_HMAC, DRBG_DUAL_EC }
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drbg_type = DRBG_NONE;
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int randoutlen = 0;
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int gen = 0;
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fips_algtest_init();
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if (argc == 3)
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{
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in = fopen(argv[1], "r");
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if (!in)
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{
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fprintf(stderr, "Error opening input file\n");
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exit(1);
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}
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out = fopen(argv[2], "w");
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if (!out)
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{
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fprintf(stderr, "Error opening output file\n");
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exit(1);
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}
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}
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else if (argc == 1)
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{
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in = stdin;
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out = stdout;
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}
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else
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{
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fprintf(stderr,"%s (infile outfile)\n",argv[0]);
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exit(1);
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}
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while (fgets(buf, sizeof(buf), in) != NULL)
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{
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fputs(buf, out);
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if (drbg_type == DRBG_NONE)
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{
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if (strstr(buf, "CTR_DRBG"))
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drbg_type = DRBG_CTR;
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else if (strstr(buf, "Hash_DRBG"))
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drbg_type = DRBG_HASH;
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else if (strstr(buf, "HMAC_DRBG"))
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drbg_type = DRBG_HMAC;
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else if (strstr(buf, "Dual_EC_DRBG"))
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drbg_type = DRBG_DUAL_EC;
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else
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continue;
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}
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if (strlen(buf) > 4 && !strncmp(buf, "[SHA-", 5))
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{
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nid = dparse_md(buf);
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if (nid == NID_undef)
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exit(1);
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if (drbg_type == DRBG_HMAC)
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{
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switch (nid)
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{
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case NID_sha1:
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nid = NID_hmacWithSHA1;
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break;
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case NID_sha224:
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nid = NID_hmacWithSHA224;
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break;
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case NID_sha256:
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nid = NID_hmacWithSHA256;
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break;
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case NID_sha384:
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nid = NID_hmacWithSHA384;
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break;
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case NID_sha512:
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nid = NID_hmacWithSHA512;
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break;
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default:
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exit(1);
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}
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}
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}
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if (strlen(buf) > 12 && !strncmp(buf, "[AES-", 5))
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{
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nid = parse_aes(buf, &df);
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if (nid == NID_undef)
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exit(1);
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}
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if (strlen(buf) > 12 && !strncmp(buf, "[P-", 3))
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{
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nid = parse_ec(buf);
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if (nid == NID_undef)
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exit(1);
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}
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if (!parse_line(&keyword, &value, lbuf, buf))
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continue;
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if (!strcmp(keyword, "[PredictionResistance"))
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{
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if (!strcmp(value, "True]"))
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pr = 1;
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else if (!strcmp(value, "False]"))
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pr = 0;
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else
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exit(1);
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}
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if (!strcmp(keyword, "EntropyInput"))
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{
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ent = hex2bin_m(value, &entlen);
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t.ent = ent;
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t.entlen = entlen;
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}
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if (!strcmp(keyword, "Nonce"))
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{
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nonce = hex2bin_m(value, &noncelen);
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t.nonce = nonce;
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t.noncelen = noncelen;
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}
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if (!strcmp(keyword, "PersonalizationString"))
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{
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pers = hex2bin_m(value, &perslen);
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if (nid == 0)
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{
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fprintf(stderr, "DRBG type not recognised!\n");
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exit (1);
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}
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dctx = FIPS_drbg_new(nid, df | DRBG_FLAG_TEST);
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if (!dctx)
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exit (1);
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FIPS_drbg_set_callbacks(dctx, test_entropy, 0, 0,
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test_nonce, 0);
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FIPS_drbg_set_app_data(dctx, &t);
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randoutlen = (int)FIPS_drbg_get_blocklength(dctx);
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r = FIPS_drbg_instantiate(dctx, pers, perslen);
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if (!r)
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{
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fprintf(stderr, "Error instantiating DRBG\n");
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exit(1);
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}
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OPENSSL_free(pers);
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OPENSSL_free(ent);
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OPENSSL_free(nonce);
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ent = nonce = pers = NULL;
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gen = 0;
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}
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if (!strcmp(keyword, "AdditionalInput"))
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{
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adin = hex2bin_m(value, &adinlen);
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if (pr)
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continue;
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r = FIPS_drbg_generate(dctx, randout, randoutlen, 0,
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adin, adinlen);
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if (!r)
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{
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fprintf(stderr, "Error generating DRBG bits\n");
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exit(1);
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}
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if (!r)
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exit(1);
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OPENSSL_free(adin);
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adin = NULL;
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gen++;
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}
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if (pr)
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{
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if (!strcmp(keyword, "EntropyInputPR"))
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{
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ent = hex2bin_m(value, &entlen);
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t.ent = ent;
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t.entlen = entlen;
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r = FIPS_drbg_generate(dctx,
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randout, randoutlen,
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1, adin, adinlen);
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if (!r)
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{
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fprintf(stderr,
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"Error generating DRBG bits\n");
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exit(1);
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}
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OPENSSL_free(adin);
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OPENSSL_free(ent);
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adin = ent = NULL;
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gen++;
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}
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}
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if (!strcmp(keyword, "EntropyInputReseed"))
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{
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ent = hex2bin_m(value, &entlen);
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t.ent = ent;
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t.entlen = entlen;
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}
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if (!strcmp(keyword, "AdditionalInputReseed"))
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{
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adin = hex2bin_m(value, &adinlen);
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FIPS_drbg_reseed(dctx, adin, adinlen);
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OPENSSL_free(ent);
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OPENSSL_free(adin);
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ent = adin = NULL;
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}
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if (gen == 2)
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{
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OutputValue("ReturnedBits", randout, randoutlen,
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out, 0);
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FIPS_drbg_free(dctx);
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dctx = NULL;
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gen = 0;
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}
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}
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if (in && in != stdin)
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fclose(in);
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if (out && out != stdout)
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fclose(out);
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return 0;
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}
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#endif
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