dgst.c
/* apps/dgst.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "apps.h"
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/hmac.h>
#undef BUFSIZE
#define BUFSIZE 1024*8
#undef PROG
#define PROG dgst_main
int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
const char *file, BIO *bmd, const char *hmac_key,
int non_fips_allow);
int MAIN(int, char **);
int MAIN(int argc, char **argv)
{
ENGINE *e = NULL;
unsigned char *buf = NULL;
int i, err = 1;
const EVP_MD *md = NULL, *m;
BIO *in = NULL, *inp;
BIO *bmd = NULL;
BIO *out = NULL;
const char *name;
#define PROG_NAME_SIZE 39
char pname[PROG_NAME_SIZE + 1];
int separator = 0;
int debug = 0;
int keyform = FORMAT_PEM;
const char *outfile = NULL, *keyfile = NULL;
const char *sigfile = NULL, *randfile = NULL;
int out_bin = -1, want_pub = 0, do_verify = 0;
EVP_PKEY *sigkey = NULL;
unsigned char *sigbuf = NULL;
int siglen = 0;
unsigned int sig_flags = 0;
char *passargin = NULL, *passin = NULL;
#ifndef OPENSSL_NO_ENGINE
char *engine = NULL;
#endif
char *hmac_key = NULL;
int non_fips_allow = 0;
apps_startup();
ERR_load_crypto_strings();
if ((buf = (unsigned char *)OPENSSL_malloc(BUFSIZE)) == NULL) {
BIO_printf(bio_err, "out of memory\n");
goto end;
}
if (bio_err == NULL)
if ((bio_err = BIO_new(BIO_s_file())) != NULL)
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
if (!load_config(bio_err, NULL))
goto end;
/* first check the program name */
program_name(argv[0], pname, sizeof pname);
md = EVP_get_digestbyname(pname);
argc--;
argv++;
while (argc > 0) {
if ((*argv)[0] != '-')
break;
if (strcmp(*argv, "-c") == 0)
separator = 1;
else if (strcmp(*argv, "-rand") == 0) {
if (--argc < 1)
break;
randfile = *(++argv);
} else if (strcmp(*argv, "-out") == 0) {
if (--argc < 1)
break;
outfile = *(++argv);
} else if (strcmp(*argv, "-sign") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-passin")) {
if (--argc < 1)
break;
passargin = *++argv;
} else if (strcmp(*argv, "-verify") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
want_pub = 1;
do_verify = 1;
} else if (strcmp(*argv, "-prverify") == 0) {
if (--argc < 1)
break;
keyfile = *(++argv);
do_verify = 1;
} else if (strcmp(*argv, "-x931") == 0)
sig_flags = EVP_MD_CTX_FLAG_PAD_X931;
else if (strcmp(*argv, "-pss_saltlen") == 0) {
int saltlen;
if (--argc < 1)
break;
saltlen = atoi(*(++argv));
if (saltlen == -1)
sig_flags = EVP_MD_CTX_FLAG_PSS_MREC;
else if (saltlen == -2)
sig_flags = EVP_MD_CTX_FLAG_PSS_MDLEN;
else if (saltlen < -2 || saltlen >= 0xFFFE) {
BIO_printf(bio_err, "Invalid PSS salt length %d\n", saltlen);
goto end;
} else
sig_flags = saltlen;
sig_flags <<= 16;
sig_flags |= EVP_MD_CTX_FLAG_PAD_PSS;
} else if (strcmp(*argv, "-signature") == 0) {
if (--argc < 1)
break;
sigfile = *(++argv);
} else if (strcmp(*argv, "-keyform") == 0) {
if (--argc < 1)
break;
keyform = str2fmt(*(++argv));
}
#ifndef OPENSSL_NO_ENGINE
else if (strcmp(*argv, "-engine") == 0) {
if (--argc < 1)
break;
engine = *(++argv);
}
#endif
else if (strcmp(*argv, "-hex") == 0)
out_bin = 0;
else if (strcmp(*argv, "-binary") == 0)
out_bin = 1;
else if (strcmp(*argv, "-d") == 0)
debug = 1;
else if (strcmp(*argv, "-non-fips-allow") == 0)
non_fips_allow = 1;
else if (!strcmp(*argv, "-fips-fingerprint"))
hmac_key = "etaonrishdlcupfm";
else if (!strcmp(*argv, "-hmac")) {
if (--argc < 1)
break;
hmac_key = *++argv;
} else if ((m = EVP_get_digestbyname(&((*argv)[1]))) != NULL)
md = m;
else
break;
argc--;
argv++;
}
if (md == NULL)
md = EVP_md5();
if (do_verify && !sigfile) {
BIO_printf(bio_err,
"No signature to verify: use the -signature option\n");
err = 1;
goto end;
}
if ((argc > 0) && (argv[0][0] == '-')) { /* bad option */
BIO_printf(bio_err, "unknown option '%s'\n", *argv);
BIO_printf(bio_err, "options are\n");
BIO_printf(bio_err,
"-c to output the digest with separating colons\n");
BIO_printf(bio_err, "-d to output debug info\n");
BIO_printf(bio_err, "-hex output as hex dump\n");
BIO_printf(bio_err, "-binary output in binary form\n");
BIO_printf(bio_err,
"-sign file sign digest using private key in file\n");
BIO_printf(bio_err,
"-verify file verify a signature using public key in file\n");
BIO_printf(bio_err,
"-prverify file verify a signature using private key in file\n");
BIO_printf(bio_err,
"-keyform arg key file format (PEM or ENGINE)\n");
BIO_printf(bio_err, "-signature file signature to verify\n");
BIO_printf(bio_err, "-binary output in binary form\n");
BIO_printf(bio_err, "-hmac key create hashed MAC with key\n");
#ifndef OPENSSL_NO_ENGINE
BIO_printf(bio_err,
"-engine e use engine e, possibly a hardware device.\n");
#endif
BIO_printf(bio_err,
"-%-14s to use the %s message digest algorithm (default)\n",
LN_md5, LN_md5);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_md4, LN_md4);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_md2, LN_md2);
#ifndef OPENSSL_NO_SHA
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha1, LN_sha1);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha, LN_sha);
# ifndef OPENSSL_NO_SHA256
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha224, LN_sha224);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha256, LN_sha256);
# endif
# ifndef OPENSSL_NO_SHA512
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha384, LN_sha384);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_sha512, LN_sha512);
# endif
#endif
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_mdc2, LN_mdc2);
BIO_printf(bio_err, "-%-14s to use the %s message digest algorithm\n",
LN_ripemd160, LN_ripemd160);
err = 1;
goto end;
}
#ifndef OPENSSL_NO_ENGINE
e = setup_engine(bio_err, engine, 0);
#endif
in = BIO_new(BIO_s_file());
bmd = BIO_new(BIO_f_md());
if (debug) {
BIO_set_callback(in, BIO_debug_callback);
/* needed for windows 3.1 */
BIO_set_callback_arg(in, (char *)bio_err);
}
if (!app_passwd(bio_err, passargin, NULL, &passin, NULL)) {
BIO_printf(bio_err, "Error getting password\n");
goto end;
}
if ((in == NULL) || (bmd == NULL)) {
ERR_print_errors(bio_err);
goto end;
}
if (out_bin == -1) {
if (keyfile)
out_bin = 1;
else
out_bin = 0;
}
if (randfile)
app_RAND_load_file(randfile, bio_err, 0);
if (outfile) {
if (out_bin)
out = BIO_new_file(outfile, "wb");
else
out = BIO_new_file(outfile, "w");
} else {
out = BIO_new_fp(stdout, BIO_NOCLOSE);
#ifdef OPENSSL_SYS_VMS
{
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
out = BIO_push(tmpbio, out);
}
#endif
}
if (!out) {
BIO_printf(bio_err, "Error opening output file %s\n",
outfile ? outfile : "(stdout)");
ERR_print_errors(bio_err);
goto end;
}
if (keyfile) {
if (want_pub)
sigkey = load_pubkey(bio_err, keyfile, keyform, 0, NULL,
e, "key file");
else
sigkey = load_key(bio_err, keyfile, keyform, 0, passin,
e, "key file");
if (!sigkey) {
/*
* load_[pub]key() has already printed an appropriate message
*/
goto end;
}
}
if (sigfile && sigkey) {
BIO *sigbio;
sigbio = BIO_new_file(sigfile, "rb");
siglen = EVP_PKEY_size(sigkey);
sigbuf = OPENSSL_malloc(siglen);
if (!sigbio) {
BIO_printf(bio_err, "Error opening signature file %s\n", sigfile);
ERR_print_errors(bio_err);
goto end;
}
siglen = BIO_read(sigbio, sigbuf, siglen);
BIO_free(sigbio);
if (siglen <= 0) {
BIO_printf(bio_err, "Error reading signature file %s\n", sigfile);
ERR_print_errors(bio_err);
goto end;
}
}
if (non_fips_allow) {
EVP_MD_CTX *md_ctx;
BIO_get_md_ctx(bmd, &md_ctx);
EVP_MD_CTX_set_flags(md_ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
}
if (sig_flags) {
EVP_MD_CTX *md_ctx;
BIO_get_md_ctx(bmd, &md_ctx);
EVP_MD_CTX_set_flags(md_ctx, sig_flags);
}
/* we use md as a filter, reading from 'in' */
if (!BIO_set_md(bmd, md)) {
BIO_printf(bio_err, "Error setting digest %s\n", pname);
ERR_print_errors(bio_err);
goto end;
}
inp = BIO_push(bmd, in);
if (argc == 0) {
BIO_set_fp(in, stdin, BIO_NOCLOSE);
err = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
siglen, "", "(stdin)", bmd, hmac_key, non_fips_allow);
} else {
name = OBJ_nid2sn(md->type);
err = 0;
for (i = 0; i < argc; i++) {
char *tmp, *tofree = NULL;
int r;
if (BIO_read_filename(in, argv[i]) <= 0) {
perror(argv[i]);
err++;
continue;
}
if (!out_bin) {
size_t len =
strlen(name) + strlen(argv[i]) + (hmac_key ? 5 : 0) + 5;
tmp = tofree = OPENSSL_malloc(len);
BIO_snprintf(tmp, len, "%s%s(%s)= ",
hmac_key ? "HMAC-" : "", name, argv[i]);
} else
tmp = "";
r = do_fp(out, buf, inp, separator, out_bin, sigkey, sigbuf,
siglen, tmp, argv[i], bmd, hmac_key, non_fips_allow);
if (r)
err = r;
if (tofree)
OPENSSL_free(tofree);
(void)BIO_reset(bmd);
}
}
end:
if (buf != NULL) {
OPENSSL_cleanse(buf, BUFSIZE);
OPENSSL_free(buf);
}
if (in != NULL)
BIO_free(in);
if (passin)
OPENSSL_free(passin);
BIO_free_all(out);
EVP_PKEY_free(sigkey);
if (sigbuf)
OPENSSL_free(sigbuf);
if (bmd != NULL)
BIO_free(bmd);
apps_shutdown();
OPENSSL_EXIT(err);
}
int do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, int binout,
EVP_PKEY *key, unsigned char *sigin, int siglen, const char *title,
const char *file, BIO *bmd, const char *hmac_key,
int non_fips_allow)
{
unsigned int len;
int i;
EVP_MD_CTX *md_ctx;
HMAC_CTX hmac_ctx;
if (hmac_key) {
EVP_MD *md;
BIO_get_md(bmd, &md);
HMAC_CTX_init(&hmac_ctx);
HMAC_Init_ex(&hmac_ctx, hmac_key, strlen(hmac_key), md, NULL);
BIO_get_md_ctx(bmd, &md_ctx);
BIO_set_md_ctx(bmd, &hmac_ctx.md_ctx);
}
for (;;) {
i = BIO_read(bp, (char *)buf, BUFSIZE);
if (i < 0) {
BIO_printf(bio_err, "Read Error in %s\n", file);
ERR_print_errors(bio_err);
return 1;
}
if (i == 0)
break;
}
if (sigin) {
EVP_MD_CTX *ctx;
BIO_get_md_ctx(bp, &ctx);
i = EVP_VerifyFinal(ctx, sigin, (unsigned int)siglen, key);
if (i > 0)
BIO_printf(out, "Verified OK\n");
else if (i == 0) {
BIO_printf(out, "Verification Failure\n");
return 1;
} else {
BIO_printf(bio_err, "Error Verifying Data\n");
ERR_print_errors(bio_err);
return 1;
}
return 0;
}
if (key) {
EVP_MD_CTX *ctx;
BIO_get_md_ctx(bp, &ctx);
if (!EVP_SignFinal(ctx, buf, (unsigned int *)&len, key)) {
BIO_printf(bio_err, "Error Signing Data\n");
ERR_print_errors(bio_err);
return 1;
}
} else if (hmac_key) {
HMAC_Final(&hmac_ctx, buf, &len);
HMAC_CTX_cleanup(&hmac_ctx);
} else
len = BIO_gets(bp, (char *)buf, BUFSIZE);
if (binout)
BIO_write(out, buf, len);
else {
BIO_write(out, title, strlen(title));
for (i = 0; i < (int)len; i++) {
if (sep && (i != 0))
BIO_printf(out, ":");
BIO_printf(out, "%02x", buf[i]);
}
BIO_printf(out, "\n");
}
if (hmac_key) {
BIO_set_md_ctx(bmd, md_ctx);
}
return 0;
}
