diff options
Diffstat (limited to 'apps/smime.c')
-rw-r--r-- | apps/smime.c | 575 |
1 files changed, 0 insertions, 575 deletions
diff --git a/apps/smime.c b/apps/smime.c deleted file mode 100644 index 0a16bbc4dd..0000000000 --- a/apps/smime.c +++ /dev/null @@ -1,575 +0,0 @@ -/* smime.c */ -/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL - * project 1999. - */ -/* ==================================================================== - * Copyright (c) 1999 The OpenSSL Project. All rights reserved. - * - * 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 above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -/* S/MIME utility function */ - -#include <stdio.h> -#include <string.h> -#include "apps.h" -#include <openssl/crypto.h> -#include <openssl/pem.h> -#include <openssl/err.h> -#include <openssl/engine.h> - -#undef PROG -#define PROG smime_main -static X509_STORE *setup_verify(char *CAfile, char *CApath); -static int save_certs(char *signerfile, STACK_OF(X509) *signers); - -#define SMIME_OP 0x10 -#define SMIME_ENCRYPT (1 | SMIME_OP) -#define SMIME_DECRYPT 2 -#define SMIME_SIGN (3 | SMIME_OP) -#define SMIME_VERIFY 4 -#define SMIME_PK7OUT 5 - -int MAIN(int, char **); - -int MAIN(int argc, char **argv) -{ - ENGINE *e = NULL; - int operation = 0; - int ret = 0; - char **args; - char *inmode = "r", *outmode = "w"; - char *infile = NULL, *outfile = NULL; - char *signerfile = NULL, *recipfile = NULL; - char *certfile = NULL, *keyfile = NULL, *contfile=NULL; - EVP_CIPHER *cipher = NULL; - PKCS7 *p7 = NULL; - X509_STORE *store = NULL; - X509 *cert = NULL, *recip = NULL, *signer = NULL; - EVP_PKEY *key = NULL; - STACK_OF(X509) *encerts = NULL, *other = NULL; - BIO *in = NULL, *out = NULL, *indata = NULL; - int badarg = 0; - int flags = PKCS7_DETACHED; - char *to = NULL, *from = NULL, *subject = NULL; - char *CAfile = NULL, *CApath = NULL; - char *passargin = NULL, *passin = NULL; - char *inrand = NULL; - int need_rand = 0; - int informat = FORMAT_SMIME, outformat = FORMAT_SMIME; - char *engine=NULL; - - args = argv + 1; - ret = 1; - - while (!badarg && *args && *args[0] == '-') { - if (!strcmp (*args, "-encrypt")) operation = SMIME_ENCRYPT; - else if (!strcmp (*args, "-decrypt")) operation = SMIME_DECRYPT; - else if (!strcmp (*args, "-sign")) operation = SMIME_SIGN; - else if (!strcmp (*args, "-verify")) operation = SMIME_VERIFY; - else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT; -#ifndef NO_DES - else if (!strcmp (*args, "-des3")) - cipher = EVP_des_ede3_cbc(); - else if (!strcmp (*args, "-des")) - cipher = EVP_des_cbc(); -#endif -#ifndef NO_RC2 - else if (!strcmp (*args, "-rc2-40")) - cipher = EVP_rc2_40_cbc(); - else if (!strcmp (*args, "-rc2-128")) - cipher = EVP_rc2_cbc(); - else if (!strcmp (*args, "-rc2-64")) - cipher = EVP_rc2_64_cbc(); -#endif - else if (!strcmp (*args, "-text")) - flags |= PKCS7_TEXT; - else if (!strcmp (*args, "-nointern")) - flags |= PKCS7_NOINTERN; - else if (!strcmp (*args, "-noverify")) - flags |= PKCS7_NOVERIFY; - else if (!strcmp (*args, "-nochain")) - flags |= PKCS7_NOCHAIN; - else if (!strcmp (*args, "-nocerts")) - flags |= PKCS7_NOCERTS; - else if (!strcmp (*args, "-noattr")) - flags |= PKCS7_NOATTR; - else if (!strcmp (*args, "-nodetach")) - flags &= ~PKCS7_DETACHED; - else if (!strcmp (*args, "-nosmimecap")) - flags |= PKCS7_NOSMIMECAP; - else if (!strcmp (*args, "-binary")) - flags |= PKCS7_BINARY; - else if (!strcmp (*args, "-nosigs")) - flags |= PKCS7_NOSIGS; - else if (!strcmp(*args,"-rand")) { - if (args[1]) { - args++; - inrand = *args; - } else badarg = 1; - need_rand = 1; - } else if (!strcmp(*args,"-engine")) { - if (args[1]) { - args++; - engine = *args; - } else badarg = 1; - } else if (!strcmp(*args,"-passin")) { - if (args[1]) { - args++; - passargin = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-to")) { - if (args[1]) { - args++; - to = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-from")) { - if (args[1]) { - args++; - from = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-subject")) { - if (args[1]) { - args++; - subject = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-signer")) { - if (args[1]) { - args++; - signerfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-recip")) { - if (args[1]) { - args++; - recipfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-inkey")) { - if (args[1]) { - args++; - keyfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-certfile")) { - if (args[1]) { - args++; - certfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-CAfile")) { - if (args[1]) { - args++; - CAfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-CApath")) { - if (args[1]) { - args++; - CApath = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-in")) { - if (args[1]) { - args++; - infile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-inform")) { - if (args[1]) { - args++; - informat = str2fmt(*args); - } else badarg = 1; - } else if (!strcmp (*args, "-outform")) { - if (args[1]) { - args++; - outformat = str2fmt(*args); - } else badarg = 1; - } else if (!strcmp (*args, "-out")) { - if (args[1]) { - args++; - outfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-content")) { - if (args[1]) { - args++; - contfile = *args; - } else badarg = 1; - } else badarg = 1; - args++; - } - - if(operation == SMIME_SIGN) { - if(!signerfile) { - BIO_printf(bio_err, "No signer certificate specified\n"); - badarg = 1; - } - need_rand = 1; - } else if(operation == SMIME_DECRYPT) { - if(!recipfile) { - BIO_printf(bio_err, "No recipient certificate and key specified\n"); - badarg = 1; - } - } else if(operation == SMIME_ENCRYPT) { - if(!*args) { - BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); - badarg = 1; - } - need_rand = 1; - } else if(!operation) badarg = 1; - - if (badarg) { - BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n"); - BIO_printf (bio_err, "where options are\n"); - BIO_printf (bio_err, "-encrypt encrypt message\n"); - BIO_printf (bio_err, "-decrypt decrypt encrypted message\n"); - BIO_printf (bio_err, "-sign sign message\n"); - BIO_printf (bio_err, "-verify verify signed message\n"); - BIO_printf (bio_err, "-pk7out output PKCS#7 structure\n"); -#ifndef NO_DES - BIO_printf (bio_err, "-des3 encrypt with triple DES\n"); - BIO_printf (bio_err, "-des encrypt with DES\n"); -#endif -#ifndef NO_RC2 - BIO_printf (bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); - BIO_printf (bio_err, "-rc2-64 encrypt with RC2-64\n"); - BIO_printf (bio_err, "-rc2-128 encrypt with RC2-128\n"); -#endif - BIO_printf (bio_err, "-nointern don't search certificates in message for signer\n"); - BIO_printf (bio_err, "-nosigs don't verify message signature\n"); - BIO_printf (bio_err, "-noverify don't verify signers certificate\n"); - BIO_printf (bio_err, "-nocerts don't include signers certificate when signing\n"); - BIO_printf (bio_err, "-nodetach use opaque signing\n"); - BIO_printf (bio_err, "-noattr don't include any signed attributes\n"); - BIO_printf (bio_err, "-binary don't translate message to text\n"); - BIO_printf (bio_err, "-certfile file other certificates file\n"); - BIO_printf (bio_err, "-signer file signer certificate file\n"); - BIO_printf (bio_err, "-recip file recipient certificate file for decryption\n"); - BIO_printf (bio_err, "-in file input file\n"); - BIO_printf (bio_err, "-inform arg input format SMIME (default), PEM or DER\n"); - BIO_printf (bio_err, "-inkey file input private key (if not signer or recipient)\n"); - BIO_printf (bio_err, "-out file output file\n"); - BIO_printf (bio_err, "-outform arg output format SMIME (default), PEM or DER\n"); - BIO_printf (bio_err, "-content file supply or override content for detached signature\n"); - BIO_printf (bio_err, "-to addr to address\n"); - BIO_printf (bio_err, "-from ad from address\n"); - BIO_printf (bio_err, "-subject s subject\n"); - BIO_printf (bio_err, "-text include or delete text MIME headers\n"); - BIO_printf (bio_err, "-CApath dir trusted certificates directory\n"); - BIO_printf (bio_err, "-CAfile file trusted certificates file\n"); - BIO_printf (bio_err, "-engine e use engine e, possibly a hardware device.\n"); - BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); - BIO_printf(bio_err, " load the file (or the files in the directory) into\n"); - BIO_printf(bio_err, " the random number generator\n"); - BIO_printf (bio_err, "cert.pem recipient certificate(s) for encryption\n"); - goto end; - } - - if (engine != NULL) - { - if((e = ENGINE_by_id(engine)) == NULL) - { - BIO_printf(bio_err,"invalid engine \"%s\"\n", - engine); - goto end; - } - if(!ENGINE_set_default(e, ENGINE_METHOD_ALL)) - { - BIO_printf(bio_err,"can't use that engine\n"); - goto end; - } - BIO_printf(bio_err,"engine \"%s\" set.\n", engine); - /* Free our "structural" reference. */ - ENGINE_free(e); - } - - if(!app_passwd(bio_err, passargin, NULL, &passin, NULL)) { - BIO_printf(bio_err, "Error getting password\n"); - goto end; - } - - if (need_rand) { - app_RAND_load_file(NULL, bio_err, (inrand != NULL)); - if (inrand != NULL) - BIO_printf(bio_err,"%ld semi-random bytes loaded\n", - app_RAND_load_files(inrand)); - } - - ret = 2; - - if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED; - - if(operation & SMIME_OP) { - if(flags & PKCS7_BINARY) inmode = "rb"; - if(outformat == FORMAT_ASN1) outmode = "wb"; - } else { - if(flags & PKCS7_BINARY) outmode = "wb"; - if(informat == FORMAT_ASN1) inmode = "rb"; - } - - if(operation == SMIME_ENCRYPT) { - if (!cipher) { -#ifndef NO_RC2 - cipher = EVP_rc2_40_cbc(); -#else - BIO_printf(bio_err, "No cipher selected\n"); - goto end; -#endif - } - encerts = sk_X509_new_null(); - while (*args) { - if(!(cert = load_cert(bio_err,*args,FORMAT_PEM))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args); - goto end; - } - sk_X509_push(encerts, cert); - cert = NULL; - args++; - } - } - - if(signerfile && (operation == SMIME_SIGN)) { - if(!(signer = load_cert(bio_err,signerfile,FORMAT_PEM))) { - BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile); - goto end; - } - } - - if(certfile) { - if(!(other = load_certs(bio_err,certfile,FORMAT_PEM))) { - BIO_printf(bio_err, "Can't read certificate file %s\n", certfile); - ERR_print_errors(bio_err); - goto end; - } - } - - if(recipfile && (operation == SMIME_DECRYPT)) { - if(!(recip = load_cert(bio_err,recipfile,FORMAT_PEM))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile); - ERR_print_errors(bio_err); - goto end; - } - } - - if(operation == SMIME_DECRYPT) { - if(!keyfile) keyfile = recipfile; - } else if(operation == SMIME_SIGN) { - if(!keyfile) keyfile = signerfile; - } else keyfile = NULL; - - if(keyfile) { - if(!(key = load_key(bio_err,keyfile, FORMAT_PEM, passin, NULL))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", keyfile); - ERR_print_errors(bio_err); - goto end; - } - } - - if (infile) { - if (!(in = BIO_new_file(infile, inmode))) { - BIO_printf (bio_err, - "Can't open input file %s\n", infile); - goto end; - } - } else in = BIO_new_fp(stdin, BIO_NOCLOSE); - - if (outfile) { - if (!(out = BIO_new_file(outfile, outmode))) { - BIO_printf (bio_err, - "Can't open output file %s\n", outfile); - goto end; - } - } else { - out = BIO_new_fp(stdout, BIO_NOCLOSE); -#ifdef VMS - { - BIO *tmpbio = BIO_new(BIO_f_linebuffer()); - out = BIO_push(tmpbio, out); - } -#endif - } - - if(operation == SMIME_VERIFY) { - if(!(store = setup_verify(CAfile, CApath))) goto end; - } - - ret = 3; - - if(operation == SMIME_ENCRYPT) { - p7 = PKCS7_encrypt(encerts, in, cipher, flags); - } else if(operation == SMIME_SIGN) { - p7 = PKCS7_sign(signer, key, other, in, flags); - BIO_reset(in); - } else { - if(informat == FORMAT_SMIME) - p7 = SMIME_read_PKCS7(in, &indata); - else if(informat == FORMAT_PEM) - p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL); - else if(informat == FORMAT_ASN1) - p7 = d2i_PKCS7_bio(in, NULL); - else { - BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); - goto end; - } - - if(!p7) { - BIO_printf(bio_err, "Error reading S/MIME message\n"); - goto end; - } - if(contfile) { - BIO_free(indata); - if(!(indata = BIO_new_file(contfile, "rb"))) { - BIO_printf(bio_err, "Can't read content file %s\n", contfile); - goto end; - } - } - } - - if(!p7) { - BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); - goto end; - } - - ret = 4; - if(operation == SMIME_DECRYPT) { - if(!PKCS7_decrypt(p7, key, recip, out, flags)) { - BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); - goto end; - } - } else if(operation == SMIME_VERIFY) { - STACK_OF(X509) *signers; - if(PKCS7_verify(p7, other, store, indata, out, flags)) { - BIO_printf(bio_err, "Verification Successful\n"); - } else { - BIO_printf(bio_err, "Verification Failure\n"); - goto end; - } - signers = PKCS7_get0_signers(p7, other, flags); - if(!save_certs(signerfile, signers)) { - BIO_printf(bio_err, "Error writing signers to %s\n", - signerfile); - ret = 5; - goto end; - } - sk_X509_free(signers); - } else if(operation == SMIME_PK7OUT) { - PEM_write_bio_PKCS7(out, p7); - } else { - if(to) BIO_printf(out, "To: %s\n", to); - if(from) BIO_printf(out, "From: %s\n", from); - if(subject) BIO_printf(out, "Subject: %s\n", subject); - if(outformat == FORMAT_SMIME) - SMIME_write_PKCS7(out, p7, in, flags); - else if(outformat == FORMAT_PEM) - PEM_write_bio_PKCS7(out,p7); - else if(outformat == FORMAT_ASN1) - i2d_PKCS7_bio(out,p7); - else { - BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); - goto end; - } - } - ret = 0; -end: - if (need_rand) - app_RAND_write_file(NULL, bio_err); - if(ret) ERR_print_errors(bio_err); - sk_X509_pop_free(encerts, X509_free); - sk_X509_pop_free(other, X509_free); - X509_STORE_free(store); - X509_free(cert); - X509_free(recip); - X509_free(signer); - EVP_PKEY_free(key); - PKCS7_free(p7); - BIO_free(in); - BIO_free(indata); - BIO_free_all(out); - if(passin) OPENSSL_free(passin); - return (ret); -} - -static X509_STORE *setup_verify(char *CAfile, char *CApath) -{ - X509_STORE *store; - X509_LOOKUP *lookup; - if(!(store = X509_STORE_new())) goto end; - lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file()); - if (lookup == NULL) goto end; - if (CAfile) { - if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) { - BIO_printf(bio_err, "Error loading file %s\n", CAfile); - goto end; - } - } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); - - lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir()); - if (lookup == NULL) goto end; - if (CApath) { - if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) { - BIO_printf(bio_err, "Error loading directory %s\n", CApath); - goto end; - } - } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); - - ERR_clear_error(); - return store; - end: - X509_STORE_free(store); - return NULL; -} - -static int save_certs(char *signerfile, STACK_OF(X509) *signers) -{ - int i; - BIO *tmp; - if(!signerfile) return 1; - tmp = BIO_new_file(signerfile, "w"); - if(!tmp) return 0; - for(i = 0; i < sk_X509_num(signers); i++) - PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); - BIO_free(tmp); - return 1; -} - |