/* apps/rsa.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.] */ #ifndef NO_RSA #include #include #include #include #include "apps.h" #include #include #include #include #include #include #undef PROG #define PROG rsa_main /* -inform arg - input format - default PEM (one of DER, NET or PEM) * -outform arg - output format - default PEM * -in arg - input file - default stdin * -out arg - output file - default stdout * -des - encrypt output if PEM format with DES in cbc mode * -des3 - encrypt output if PEM format * -idea - encrypt output if PEM format * -text - print a text version * -modulus - print the RSA key modulus * -check - verify key consistency */ int MAIN(int argc, char **argv) { int ret=1; RSA *rsa=NULL; int i,badops=0; const EVP_CIPHER *enc=NULL; BIO *in=NULL,*out=NULL; int informat,outformat,text=0,check=0,noout=0; char *infile,*outfile,*prog; int modulus=0; apps_startup(); if (bio_err == NULL) if ((bio_err=BIO_new(BIO_s_file())) != NULL) BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT); infile=NULL; outfile=NULL; informat=FORMAT_PEM; outformat=FORMAT_PEM; prog=argv[0]; argc--; argv++; while (argc >= 1) { if (strcmp(*argv,"-inform") == 0) { if (--argc < 1) goto bad; informat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-outform") == 0) { if (--argc < 1) goto bad; outformat=str2fmt(*(++argv)); } else if (strcmp(*argv,"-in") == 0) { if (--argc < 1) goto bad; infile= *(++argv); } else if (strcmp(*argv,"-out") == 0) { if (--argc < 1) goto bad; outfile= *(++argv); } else if (strcmp(*argv,"-noout") == 0) noout=1; else if (strcmp(*argv,"-text") == 0) text=1; else if (strcmp(*argv,"-modulus") == 0) modulus=1; else if (strcmp(*argv,"-check") == 0) check=1; else if ((enc=EVP_get_cipherbyname(&(argv[0][1]))) == NULL) { BIO_printf(bio_err,"unknown option %s\n",*argv); badops=1; break; } argc--; argv++; } if (badops) { bad: BIO_printf(bio_err,"%s [options] outfile\n",prog); BIO_printf(bio_err,"where options are\n"); BIO_printf(bio_err," -inform arg input format - one of DER NET PEM\n"); BIO_printf(bio_err," -outform arg output format - one of DER NET PEM\n"); BIO_printf(bio_err," -in arg input file\n"); BIO_printf(bio_err," -out arg output file\n"); BIO_printf(bio_err," -des encrypt PEM output with cbc des\n"); BIO_printf(bio_err," -des3 encrypt PEM output with ede cbc des using 168 bit key\n"); #ifndef NO_IDEA BIO_printf(bio_err," -idea encrypt PEM output with cbc idea\n"); #endif BIO_printf(bio_err," -text print the key in text\n"); BIO_printf(bio_err," -noout don't print key out\n"); BIO_printf(bio_err," -modulus print the RSA key modulus\n"); BIO_printf(bio_err," -check verify key consistency\n"); goto end; } ERR_load_crypto_strings(); in=BIO_new(BIO_s_file()); out=BIO_new(BIO_s_file()); if ((in == NULL) || (out == NULL)) { ERR_print_errors(bio_err); goto end; } if (infile == NULL) BIO_set_fp(in,stdin,BIO_NOCLOSE); else { if (BIO_read_filename(in,infile) <= 0) { perror(infile); goto end; } } BIO_printf(bio_err,"read RSA private key\n"); if (informat == FORMAT_ASN1) rsa=d2i_RSAPrivateKey_bio(in,NULL); #ifndef NO_RC4 else if (informat == FORMAT_NETSCAPE) { BUF_MEM *buf=NULL; unsigned char *p; int size=0; buf=BUF_MEM_new(); for (;;) { if ((buf == NULL) || (!BUF_MEM_grow(buf,size+1024*10))) goto end; i=BIO_read(in,&(buf->data[size]),1024*10); size+=i; if (i == 0) break; if (i < 0) { perror("reading private key"); BUF_MEM_free(buf); goto end; } } p=(unsigned char *)buf->data; rsa=(RSA *)d2i_Netscape_RSA(NULL,&p,(long)size,NULL); BUF_MEM_free(buf); } #endif else if (informat == FORMAT_PEM) rsa=PEM_read_bio_RSAPrivateKey(in,NULL,NULL); else { BIO_printf(bio_err,"bad input format specified for key\n"); goto end; } if (rsa == NULL) { BIO_printf(bio_err,"unable to load Private Key\n"); ERR_print_errors(bio_err); goto end; } if (outfile == NULL) BIO_set_fp(out,stdout,BIO_NOCLOSE); else { if (BIO_write_filename(out,outfile) <= 0) { perror(outfile); goto end; } } if (text) if (!RSA_print(out,rsa,0)) { perror(outfile); ERR_print_errors(bio_err); goto end; } if (modulus) { fprintf(stdout,"Modulus="); BN_print(out,rsa->n); fprintf(stdout,"\n"); } if (check) { int r = RSA_check_key(rsa); if (r == 1) BIO_printf(out,"RSA key ok\n"); else if (r == 0) { long e; while ((e = ERR_peek_error()) != 0 && ERR_GET_LIB(e) == ERR_LIB_RSA && ERR_GET_FUNC(e) == RSA_F_RSA_CHECK_KEY && ERR_GET_REASON(e) != ERR_R_MALLOC_FAILURE) { BIO_printf(out, "RSA key error: %s\n", ERR_reason_error_string(e)); ERR_get_error(); /* remove e from error stack */ } } if (r == -1 || ERR_peek_error() != 0) /* should happen only if r == -1 */ { ERR_print_errors(bio_err); goto end; } } if (noout) goto end; BIO_printf(bio_err,"writing RSA private key\n"); if (outformat == FORMAT_ASN1) i=i2d_RSAPrivateKey_bio(out,rsa); #ifndef NO_RC4 else if (outformat == FORMAT_NETSCAPE) { unsigned char *p,*pp; int size; i=1; size=i2d_Netscape_RSA(rsa,NULL,NULL); if ((p=(unsigned char *)Malloc(size)) == NULL) { BIO_printf(bio_err,"Malloc failure\n"); goto end; } pp=p; i2d_Netscape_RSA(rsa,&p,NULL); BIO_write(out,(char *)pp,size); Free(pp); } #endif else if (outformat == FORMAT_PEM) i=PEM_write_bio_RSAPrivateKey(out,rsa,enc,NULL,0,NULL); else { BIO_printf(bio_err,"bad output format specified for outfile\n"); goto end; } if (!i) { BIO_printf(bio_err,"unable to write private key\n"); ERR_print_errors(bio_err); } else ret=0; end: if (in != NULL) BIO_free(in); if (out != NULL) BIO_free(out); if (rsa != NULL) RSA_free(rsa); EXIT(ret); } #endif