rsa.c revision 160814
155714Skris/* apps/rsa.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 59160814Ssimon#include <openssl/opensslconf.h> 60109998Smarkm#ifndef OPENSSL_NO_RSA 6155714Skris#include <stdio.h> 6255714Skris#include <stdlib.h> 6355714Skris#include <string.h> 6455714Skris#include <time.h> 6555714Skris#include "apps.h" 6655714Skris#include <openssl/bio.h> 6755714Skris#include <openssl/err.h> 6855714Skris#include <openssl/rsa.h> 6955714Skris#include <openssl/evp.h> 7055714Skris#include <openssl/x509.h> 7155714Skris#include <openssl/pem.h> 72160814Ssimon#include <openssl/bn.h> 7355714Skris 7455714Skris#undef PROG 7555714Skris#define PROG rsa_main 7655714Skris 7755714Skris/* -inform arg - input format - default PEM (one of DER, NET or PEM) 7855714Skris * -outform arg - output format - default PEM 7955714Skris * -in arg - input file - default stdin 8055714Skris * -out arg - output file - default stdout 8155714Skris * -des - encrypt output if PEM format with DES in cbc mode 8255714Skris * -des3 - encrypt output if PEM format 8355714Skris * -idea - encrypt output if PEM format 84109998Smarkm * -aes128 - encrypt output if PEM format 85109998Smarkm * -aes192 - encrypt output if PEM format 86109998Smarkm * -aes256 - encrypt output if PEM format 8755714Skris * -text - print a text version 8855714Skris * -modulus - print the RSA key modulus 8955714Skris * -check - verify key consistency 9059191Skris * -pubin - Expect a public key in input file. 9159191Skris * -pubout - Output a public key. 9255714Skris */ 9355714Skris 9459191Skrisint MAIN(int, char **); 9559191Skris 9655714Skrisint MAIN(int argc, char **argv) 9755714Skris { 98109998Smarkm ENGINE *e = NULL; 9955714Skris int ret=1; 10055714Skris RSA *rsa=NULL; 10168651Skris int i,badops=0, sgckey=0; 10255714Skris const EVP_CIPHER *enc=NULL; 103109998Smarkm BIO *out=NULL; 10455714Skris int informat,outformat,text=0,check=0,noout=0; 10559191Skris int pubin = 0, pubout = 0; 10655714Skris char *infile,*outfile,*prog; 10759191Skris char *passargin = NULL, *passargout = NULL; 10859191Skris char *passin = NULL, *passout = NULL; 109111147Snectar#ifndef OPENSSL_NO_ENGINE 110109998Smarkm char *engine=NULL; 111111147Snectar#endif 11255714Skris int modulus=0; 11355714Skris 11455714Skris apps_startup(); 11555714Skris 11655714Skris if (bio_err == NULL) 11755714Skris if ((bio_err=BIO_new(BIO_s_file())) != NULL) 11855714Skris BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); 11955714Skris 120109998Smarkm if (!load_config(bio_err, NULL)) 121109998Smarkm goto end; 122109998Smarkm 12355714Skris infile=NULL; 12455714Skris outfile=NULL; 12555714Skris informat=FORMAT_PEM; 12655714Skris outformat=FORMAT_PEM; 12755714Skris 12855714Skris prog=argv[0]; 12955714Skris argc--; 13055714Skris argv++; 13155714Skris while (argc >= 1) 13255714Skris { 13355714Skris if (strcmp(*argv,"-inform") == 0) 13455714Skris { 13555714Skris if (--argc < 1) goto bad; 13655714Skris informat=str2fmt(*(++argv)); 13755714Skris } 13855714Skris else if (strcmp(*argv,"-outform") == 0) 13955714Skris { 14055714Skris if (--argc < 1) goto bad; 14155714Skris outformat=str2fmt(*(++argv)); 14255714Skris } 14355714Skris else if (strcmp(*argv,"-in") == 0) 14455714Skris { 14555714Skris if (--argc < 1) goto bad; 14655714Skris infile= *(++argv); 14755714Skris } 14855714Skris else if (strcmp(*argv,"-out") == 0) 14955714Skris { 15055714Skris if (--argc < 1) goto bad; 15155714Skris outfile= *(++argv); 15255714Skris } 15359191Skris else if (strcmp(*argv,"-passin") == 0) 15459191Skris { 15559191Skris if (--argc < 1) goto bad; 15659191Skris passargin= *(++argv); 15759191Skris } 15859191Skris else if (strcmp(*argv,"-passout") == 0) 15959191Skris { 16059191Skris if (--argc < 1) goto bad; 16159191Skris passargout= *(++argv); 16259191Skris } 163111147Snectar#ifndef OPENSSL_NO_ENGINE 164109998Smarkm else if (strcmp(*argv,"-engine") == 0) 165109998Smarkm { 166109998Smarkm if (--argc < 1) goto bad; 167109998Smarkm engine= *(++argv); 168109998Smarkm } 169111147Snectar#endif 17068651Skris else if (strcmp(*argv,"-sgckey") == 0) 17168651Skris sgckey=1; 17259191Skris else if (strcmp(*argv,"-pubin") == 0) 17359191Skris pubin=1; 17459191Skris else if (strcmp(*argv,"-pubout") == 0) 17559191Skris pubout=1; 17655714Skris else if (strcmp(*argv,"-noout") == 0) 17755714Skris noout=1; 17855714Skris else if (strcmp(*argv,"-text") == 0) 17955714Skris text=1; 18055714Skris else if (strcmp(*argv,"-modulus") == 0) 18155714Skris modulus=1; 18255714Skris else if (strcmp(*argv,"-check") == 0) 18355714Skris check=1; 18455714Skris else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) 18555714Skris { 18655714Skris BIO_printf(bio_err,"unknown option %s\n",*argv); 18755714Skris badops=1; 18855714Skris break; 18955714Skris } 19055714Skris argc--; 19155714Skris argv++; 19255714Skris } 19355714Skris 19455714Skris if (badops) 19555714Skris { 19655714Skrisbad: 19755714Skris BIO_printf(bio_err,"%s [options] <infile >outfile\n",prog); 19855714Skris BIO_printf(bio_err,"where options are\n"); 19959191Skris BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); 20059191Skris BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); 20159191Skris BIO_printf(bio_err," -in arg input file\n"); 20268651Skris BIO_printf(bio_err," -sgckey Use IIS SGC key format\n"); 20359191Skris BIO_printf(bio_err," -passin arg input file pass phrase source\n"); 20459191Skris BIO_printf(bio_err," -out arg output file\n"); 20559191Skris BIO_printf(bio_err," -passout arg output file pass phrase source\n"); 20659191Skris BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); 20759191Skris BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); 208109998Smarkm#ifndef OPENSSL_NO_IDEA 20959191Skris BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); 21055714Skris#endif 211109998Smarkm#ifndef OPENSSL_NO_AES 212109998Smarkm BIO_printf(bio_err," -aes128, -aes192, -aes256\n"); 213109998Smarkm BIO_printf(bio_err," encrypt PEM output with cbc aes\n"); 214109998Smarkm#endif 21559191Skris BIO_printf(bio_err," -text print the key in text\n"); 21659191Skris BIO_printf(bio_err," -noout don't print key out\n"); 21759191Skris BIO_printf(bio_err," -modulus print the RSA key modulus\n"); 21859191Skris BIO_printf(bio_err," -check verify key consistency\n"); 21959191Skris BIO_printf(bio_err," -pubin expect a public key in input file\n"); 22059191Skris BIO_printf(bio_err," -pubout output a public key\n"); 221111147Snectar#ifndef OPENSSL_NO_ENGINE 222109998Smarkm BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n"); 223111147Snectar#endif 22455714Skris goto end; 22555714Skris } 22655714Skris 22755714Skris ERR_load_crypto_strings(); 22855714Skris 229111147Snectar#ifndef OPENSSL_NO_ENGINE 230109998Smarkm e = setup_engine(bio_err, engine, 0); 231111147Snectar#endif 232109998Smarkm 23359191Skris if(!app_passwd(bio_err, passargin, passargout, &passin, &passout)) { 23459191Skris BIO_printf(bio_err, "Error getting passwords\n"); 23559191Skris goto end; 23659191Skris } 23759191Skris 23859191Skris if(check && pubin) { 23959191Skris BIO_printf(bio_err, "Only private keys can be checked\n"); 24059191Skris goto end; 24159191Skris } 24259191Skris 24355714Skris out=BIO_new(BIO_s_file()); 24455714Skris 245109998Smarkm { 246109998Smarkm EVP_PKEY *pkey; 24755714Skris 248109998Smarkm if (pubin) 249109998Smarkm pkey = load_pubkey(bio_err, infile, 250109998Smarkm (informat == FORMAT_NETSCAPE && sgckey ? 251109998Smarkm FORMAT_IISSGC : informat), 1, 252109998Smarkm passin, e, "Public Key"); 253109998Smarkm else 254109998Smarkm pkey = load_key(bio_err, infile, 255109998Smarkm (informat == FORMAT_NETSCAPE && sgckey ? 256109998Smarkm FORMAT_IISSGC : informat), 1, 257109998Smarkm passin, e, "Private Key"); 258109998Smarkm 259109998Smarkm if (pkey != NULL) 260109998Smarkm rsa = pkey == NULL ? NULL : EVP_PKEY_get1_RSA(pkey); 261109998Smarkm EVP_PKEY_free(pkey); 26259191Skris } 26355714Skris 26455714Skris if (rsa == NULL) 26555714Skris { 26655714Skris ERR_print_errors(bio_err); 26755714Skris goto end; 26855714Skris } 26955714Skris 27055714Skris if (outfile == NULL) 27168651Skris { 27255714Skris BIO_set_fp(out,stdout,BIO_NOCLOSE); 273109998Smarkm#ifdef OPENSSL_SYS_VMS 27468651Skris { 27568651Skris BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 27668651Skris out = BIO_push(tmpbio, out); 27768651Skris } 27868651Skris#endif 27968651Skris } 28055714Skris else 28155714Skris { 28255714Skris if (BIO_write_filename(out,outfile) <= 0) 28355714Skris { 28455714Skris perror(outfile); 28555714Skris goto end; 28655714Skris } 28755714Skris } 28855714Skris 28955714Skris if (text) 29055714Skris if (!RSA_print(out,rsa,0)) 29155714Skris { 29255714Skris perror(outfile); 29355714Skris ERR_print_errors(bio_err); 29455714Skris goto end; 29555714Skris } 29655714Skris 29755714Skris if (modulus) 29855714Skris { 29959191Skris BIO_printf(out,"Modulus="); 30055714Skris BN_print(out,rsa->n); 30159191Skris BIO_printf(out,"\n"); 30255714Skris } 30355714Skris 30455714Skris if (check) 30555714Skris { 30655714Skris int r = RSA_check_key(rsa); 30755714Skris 30855714Skris if (r == 1) 30955714Skris BIO_printf(out,"RSA key ok\n"); 31055714Skris else if (r == 0) 31155714Skris { 312160814Ssimon unsigned long err; 31355714Skris 314109998Smarkm while ((err = ERR_peek_error()) != 0 && 315109998Smarkm ERR_GET_LIB(err) == ERR_LIB_RSA && 316109998Smarkm ERR_GET_FUNC(err) == RSA_F_RSA_CHECK_KEY && 317109998Smarkm ERR_GET_REASON(err) != ERR_R_MALLOC_FAILURE) 31855714Skris { 319109998Smarkm BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(err)); 32055714Skris ERR_get_error(); /* remove e from error stack */ 32155714Skris } 32255714Skris } 32355714Skris 32455714Skris if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ 32555714Skris { 32655714Skris ERR_print_errors(bio_err); 32755714Skris goto end; 32855714Skris } 32955714Skris } 33055714Skris 33159191Skris if (noout) 33259191Skris { 33359191Skris ret = 0; 33459191Skris goto end; 33559191Skris } 33659191Skris BIO_printf(bio_err,"writing RSA key\n"); 33759191Skris if (outformat == FORMAT_ASN1) { 33859191Skris if(pubout || pubin) i=i2d_RSA_PUBKEY_bio(out,rsa); 33959191Skris else i=i2d_RSAPrivateKey_bio(out,rsa); 34059191Skris } 341109998Smarkm#ifndef OPENSSL_NO_RC4 34255714Skris else if (outformat == FORMAT_NETSCAPE) 34355714Skris { 34455714Skris unsigned char *p,*pp; 34555714Skris int size; 34655714Skris 34755714Skris i=1; 34868651Skris size=i2d_RSA_NET(rsa,NULL,NULL, sgckey); 34968651Skris if ((p=(unsigned char *)OPENSSL_malloc(size)) == NULL) 35055714Skris { 35168651Skris BIO_printf(bio_err,"Memory allocation failure\n"); 35255714Skris goto end; 35355714Skris } 35455714Skris pp=p; 35568651Skris i2d_RSA_NET(rsa,&p,NULL, sgckey); 35655714Skris BIO_write(out,(char *)pp,size); 35768651Skris OPENSSL_free(pp); 35855714Skris } 35955714Skris#endif 36059191Skris else if (outformat == FORMAT_PEM) { 36159191Skris if(pubout || pubin) 36259191Skris i=PEM_write_bio_RSA_PUBKEY(out,rsa); 36359191Skris else i=PEM_write_bio_RSAPrivateKey(out,rsa, 36459191Skris enc,NULL,0,NULL,passout); 36559191Skris } else { 36655714Skris BIO_printf(bio_err,"bad output format specified for outfile\n"); 36755714Skris goto end; 36855714Skris } 36955714Skris if (!i) 37055714Skris { 37159191Skris BIO_printf(bio_err,"unable to write key\n"); 37255714Skris ERR_print_errors(bio_err); 37355714Skris } 37455714Skris else 37555714Skris ret=0; 37655714Skrisend: 37768651Skris if(out != NULL) BIO_free_all(out); 37859191Skris if(rsa != NULL) RSA_free(rsa); 37968651Skris if(passin) OPENSSL_free(passin); 38068651Skris if(passout) OPENSSL_free(passout); 381109998Smarkm apps_shutdown(); 382109998Smarkm OPENSSL_EXIT(ret); 38355714Skris } 384109998Smarkm#else /* !OPENSSL_NO_RSA */ 38559191Skris 38659191Skris# if PEDANTIC 38759191Skrisstatic void *dummy=&dummy; 38859191Skris# endif 38959191Skris 39055714Skris#endif 391