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+/* 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>
+
+#undef BUFSIZE
+#define BUFSIZE 1024*8
+
+#undef PROG
+#define PROG dgst_main
+
+void do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, char binout,
+ EVP_PKEY *key, unsigned char *sigin, int siglen);
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+ {
+ unsigned char *buf=NULL;
+ int i,err=0;
+ const EVP_MD *md=NULL,*m;
+ BIO *in=NULL,*inp;
+ BIO *bmd=NULL;
+ BIO *out = NULL;
+ const char *name;
+#define PROG_NAME_SIZE 16
+ char pname[PROG_NAME_SIZE];
+ int separator=0;
+ int debug=0;
+ const char *outfile = NULL, *keyfile = NULL;
+ const char *sigfile = NULL, *randfile = NULL;
+ char out_bin = -1, want_pub = 0, do_verify = 0;
+ EVP_PKEY *sigkey = NULL;
+ unsigned char *sigbuf = NULL;
+ int siglen = 0;
+
+ apps_startup();
+
+ 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);
+
+ /* first check the program name */
+ program_name(argv[0],pname,PROG_NAME_SIZE);
+
+ 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,"-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,"-signature") == 0)
+ {
+ if (--argc < 1) break;
+ sigfile=*(++argv);
+ }
+ 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 ((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,"-signature file signature to verify\n");
+ BIO_printf(bio_err,"-binary output in binary form\n");
+
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm (default)\n",
+ LN_md5,LN_md5);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_md4,LN_md4);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_md2,LN_md2);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_sha1,LN_sha1);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_sha,LN_sha);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_mdc2,LN_mdc2);
+ BIO_printf(bio_err,"-%3s to use the %s message digest algorithm\n",
+ LN_ripemd160,LN_ripemd160);
+ err=1;
+ goto end;
+ }
+
+ 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,bio_err);
+ }
+
+ 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 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) {
+ BIO *keybio;
+ keybio = BIO_new_file(keyfile, "r");
+ if(!keybio) {
+ BIO_printf(bio_err, "Error opening key file %s\n",
+ keyfile);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+
+ if(want_pub)
+ sigkey = PEM_read_bio_PUBKEY(keybio, NULL, NULL, NULL);
+ else sigkey = PEM_read_bio_PrivateKey(keybio, NULL, NULL, NULL);
+ BIO_free(keybio);
+ if(!sigkey) {
+ BIO_printf(bio_err, "Error reading key file %s\n",
+ keyfile);
+ ERR_print_errors(bio_err);
+ 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;
+ }
+ }
+
+
+
+ /* we use md as a filter, reading from 'in' */
+ BIO_set_md(bmd,md);
+ inp=BIO_push(bmd,in);
+
+ if (argc == 0)
+ {
+ BIO_set_fp(in,stdin,BIO_NOCLOSE);
+ do_fp(out, buf,inp,separator, out_bin, sigkey, sigbuf, siglen);
+ }
+ else
+ {
+ name=OBJ_nid2sn(md->type);
+ for (i=0; i<argc; i++)
+ {
+ if (BIO_read_filename(in,argv[i]) <= 0)
+ {
+ perror(argv[i]);
+ err++;
+ continue;
+ }
+ if(!out_bin) BIO_printf(out, "%s(%s)= ",name,argv[i]);
+ do_fp(out, buf,inp,separator, out_bin, sigkey,
+ sigbuf, siglen);
+ (void)BIO_reset(bmd);
+ }
+ }
+end:
+ if (buf != NULL)
+ {
+ memset(buf,0,BUFSIZE);
+ OPENSSL_free(buf);
+ }
+ if (in != NULL) BIO_free(in);
+ BIO_free_all(out);
+ EVP_PKEY_free(sigkey);
+ if(sigbuf) OPENSSL_free(sigbuf);
+ if (bmd != NULL) BIO_free(bmd);
+ EXIT(err);
+ }
+
+void do_fp(BIO *out, unsigned char *buf, BIO *bp, int sep, char binout,
+ EVP_PKEY *key, unsigned char *sigin, int siglen)
+ {
+ int len;
+ int i;
+
+ for (;;)
+ {
+ i=BIO_read(bp,(char *)buf,BUFSIZE);
+ 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");
+ else
+ {
+ BIO_printf(bio_err, "Error Verifying Data\n");
+ ERR_print_errors(bio_err);
+ }
+ return;
+ }
+ 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;
+ }
+ }
+ else
+ len=BIO_gets(bp,(char *)buf,BUFSIZE);
+
+ if(binout) BIO_write(out, buf, len);
+ else
+ {
+ for (i=0; i<len; i++)
+ {
+ if (sep && (i != 0))
+ BIO_printf(out, ":");
+ BIO_printf(out, "%02x",buf[i]);
+ }
+ BIO_printf(out, "\n");
+ }
+ }
+
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