Hi!
Due to great demand, I made this simple program that analyze let's call
the 'SPKAC' files and can return some info. Here the help:
$ openssl spkac
usage: spkac args
-in infile - Input file [required]
-verbose - Print a lot of info lines
-keysize - Print SPKAC public key size
-verify - Verify SPKAC public key signature
-noout - Does not print hex value of public key
example:
$ openssl spkac -in request -keysize -verify -noout
Key Size is 512
Signature ok
$ openssl spkac -in request
SPKAC Public Key = {
0x06,0x00,0x00,0x00,0x06,0x00,0x00,0x00, ...};
I think it is useful, and I hope you'll include in the next SNAP of OpenSSL.
(Please let me know whatever will be your decision).
Installation of this program (for who wants to test it):
========================================================
Build your OpenSSL 0.9.4 as normal. Now go to the apps/ dir. Copy the spkac.c
file there. Edit the Makefile and add let's say after pkcs8/pkcs8.c/pkcs8.o
spkca/spkca.c/spkac.o rispectively. Now edit the progs.h file and add the
following (lines are not really important if you know what you are doing):
at line 31:
extern int spkac_main(int argc,char *argv[]);
and at line 59:
{FUNC_TYPE_GENERAL,"spkac",spkac_main},
I think this is all. Now simple do:
$ make
$ make install
and you should be set, just try the program and please report bugs/enhancements
you might want to add.
C'you,
Massimiliano Pala ([EMAIL PROTECTED])
P.S.: Please if you know a simpler installation method, report it (either to me
and the list). Thanks!
/* apps/spkac.c */
/* Copyright (C) 1995-1998 Eric Young ([EMAIL PROTECTED])
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young ([EMAIL PROTECTED]).
* 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 ([EMAIL PROTECTED]).
*
* 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 ([EMAIL PROTECTED])"
* 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 ([EMAIL PROTECTED])"
*
* 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.]
*/
/* The PPKI stuff has been donated by Jeff Barber <[EMAIL PROTECTED]> */
/* The SPKAC stuff has been donated by Massimiliano Pala <[EMAIL PROTECTED]> */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "apps.h"
#include <openssl/conf.h>
#include <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/bn.h>
#include <openssl/txt_db.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include <openssl/objects.h>
#include <openssl/pem.h>
#ifndef W_OK
# ifdef VMS
# if defined(__DECC)
# include <unistd.h>
# else
# include <unixlib.h>
# endif
# else
# include <sys/file.h>
# endif
#endif
#ifndef W_OK
# define F_OK 0
# define X_OK 1
# define W_OK 2
# define R_OK 4
#endif
#undef PROG
#define PROG spkac_main
#define BASE_SECTION "spkac"
static int fix_data(int nid, int *type);
static char *spkac_usage[]={
"usage: spkac args\n",
"\n",
" -in infile - Input file [required]\n",
" -verbose - Print a lot of info lines\n",
" -keysize - Print SPKAC public key size\n",
" -verify - Verify SPKAC public key signature\n",
" -noout - Does not print hex value of public key\n",
"\n",
NULL
};
#ifdef EFENCE
extern int EF_PROTECT_FREE;
extern int EF_PROTECT_BELOW;
extern int EF_ALIGNMENT;
#endif
int MAIN(int argc, char **argv)
{
int total=0;
int total_done=0;
int badops=0;
int ret=1;
int verify=0;
int noout=0;
int verbose=0;
int keysize=0;
char *infile=NULL;
char **pp;
int i,j;
long l;
STACK_OF(CONF_VALUE) *attribs=NULL;
STACK *cert_sk=NULL;
BIO *STDout=NULL;
STACK_OF(CONF_VALUE) *sk=NULL;
LHASH *parms=NULL;
CONF_VALUE *cv=NULL;
NETSCAPE_SPKI *spki = NULL;
unsigned char *spki_der = NULL,*p;
char *type,*buf;
EVP_PKEY *pktmp=NULL;
int ok= -1;
long errline;
int nid;
#undef BSIZE
#define BSIZE 256
#ifdef EFENCE
EF_PROTECT_FREE=1;
EF_PROTECT_BELOW=1;
EF_ALIGNMENT=0;
#endif
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);
STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
argc--;
argv++;
while (argc >= 1)
{
if (strcmp(*argv,"-in") == 0)
{
if (--argc < 1) goto bad;
infile= *(++argv);
}
else if (strcmp(*argv,"-keysize") == 0)
keysize=1;
else if (strcmp(*argv,"-verbose") == 0)
verbose=1;
else if (strcmp(*argv,"-noout") == 0)
noout=1;
else if (strcmp(*argv,"-verify") == 0)
verify=1;
else
{
bad:
BIO_printf(bio_err,"unknown option %s\n",*argv);
badops=1;
break;
}
argc--;
argv++;
}
if ( infile == NULL )
badops=1;
if (badops)
{
for (pp=spkac_usage; (*pp != NULL); pp++)
BIO_printf(bio_err,*pp);
goto err;
}
ERR_load_crypto_strings();
/*****************************************************************/
if (infile != NULL)
{
parms=CONF_load(NULL,infile,&errline);
if (parms == NULL)
{
BIO_printf(bio_err,"error on line %ld of %s\n",errline,infile);
ERR_print_errors(bio_err);
goto err;
}
sk=CONF_get_section(parms, "default");
if (sk_CONF_VALUE_num(sk) == 0)
{
BIO_printf(bio_err,"no name/value pairs found in %s\n",infile);
CONF_free(parms);
goto err;
}
for (i = 0; ; i++)
{
if (sk_CONF_VALUE_num(sk) <= i) break;
cv=sk_CONF_VALUE_value(sk,i);
type=cv->name;
buf=cv->value;
if (verbose)
BIO_printf(STDout,"Parsing Line (%s)\n", type);
if ((nid=OBJ_txt2nid(type)) == NID_undef)
{
if (strcmp(type, "SPKAC") == 0)
{
spki_der=(unsigned char *)Malloc(
strlen(cv->value)+1);
if (spki_der == NULL)
{
BIO_printf(bio_err,"Malloc failure\n");
goto err;
}
j = EVP_DecodeBlock(spki_der, (unsigned char
*)cv->value,
strlen(cv->value));
if (j <= 0)
{
BIO_printf(bio_err, "Can't b64 decode
SPKAC struct\n");
goto err;
}
p=spki_der;
spki = d2i_NETSCAPE_SPKI(&spki, &p, j);
Free(spki_der);
spki_der = NULL;
if (spki == NULL)
{
BIO_printf(bio_err,"Unable to load
Netscape SPKAC\n");
ERR_print_errors(bio_err);
goto err;
}
}
}
j=ASN1_PRINTABLE_type((unsigned char *)buf,-1);
if (fix_data(nid, &j) == 0)
{
BIO_printf(bio_err,
"invalid characters in string
%s\n",buf);
goto err;
}
}
if (spki == NULL)
{
BIO_printf(bio_err,"Netscape SPKAC structure not found in
%s\n",
infile);
goto err;
}
/*
* Now extract the key from the SPKI structure.
*/
if(verbose)
BIO_printf(STDout, "Unpacking SPKAC public key\n" );
if ((pktmp=X509_PUBKEY_get(spki->spkac->pubkey)) == NULL)
{
BIO_printf(bio_err,"error unpacking SPKAC public key\n");
goto err;
}
if(!noout)
{
int y,z;
unsigned char *d;
z = EVP_PKEY_size(pktmp);
d=(unsigned char *) pktmp;
BIO_printf(STDout,"SPKAC Public Key = {\n");
for (y=0; y<z; y++)
{
BIO_printf(STDout,"0x%02X,",d[y]);
if ((y & 0x0f) == 0x0f)
BIO_printf(STDout,"\n");
}
if (y%16 != 0) BIO_printf(STDout,"\n");
BIO_printf(STDout,"};\n");
}
if( keysize )
{
int ks;
ks = EVP_PKEY_size(pktmp) * 8;
BIO_printf(STDout, "Key Size is %d\n", ks );
}
if( verify )
{
if( verbose )
BIO_printf(STDout, "Checking the signature on SPKAC
public key\n");
j = NETSCAPE_SPKI_verify(spki, pktmp);
if (j <= 0)
{
BIO_printf(bio_err,
"Signature verification FAILED on SPKAC public
key\n");
goto err;
}
BIO_printf(STDout, "Signature ok\n");
}
}
/*****************************************************************/
ret=0;
err:
if (parms != NULL) CONF_free(parms);
if (spki_der != NULL) Free(spki_der);
if (spki != NULL) NETSCAPE_SPKI_free(spki);
if (ret) ERR_print_errors(bio_err);
BIO_free(STDout);
EXIT(ret);
}
static int fix_data(int nid, int *type)
{
if (nid == NID_pkcs9_emailAddress)
*type=V_ASN1_IA5STRING;
if ((nid == NID_commonName) && (*type == V_ASN1_IA5STRING))
*type=V_ASN1_T61STRING;
if ((nid == NID_pkcs9_challengePassword) && (*type == V_ASN1_IA5STRING))
*type=V_ASN1_T61STRING;
if ((nid == NID_pkcs9_unstructuredName) && (*type == V_ASN1_T61STRING))
return(0);
if (nid == NID_pkcs9_unstructuredName)
*type=V_ASN1_IA5STRING;
return(1);
}
S/MIME Cryptographic Signature
