Correctly check for trailing digest options.

Multiple digest options to the ocsp utility are allowed: e.g. to use
different digests for different certificate IDs. A digest option without
a following certificate is however illegal.

RT#4215

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Dr. Stephen Henson 2016-05-12 15:24:06 +01:00
parent d535e56526
commit 6302bbd21a
2 changed files with 26 additions and 15 deletions

View File

@ -228,6 +228,7 @@ int ocsp_main(int argc, char **argv)
{
BIO *acbio = NULL, *cbio = NULL, *derbio = NULL, *out = NULL;
const EVP_MD *cert_id_md = NULL, *rsign_md = NULL;
int trailing_md = 0;
CA_DB *rdb = NULL;
EVP_PKEY *key = NULL, *rkey = NULL;
OCSP_BASICRESP *bs = NULL;
@ -439,6 +440,7 @@ int ocsp_main(int argc, char **argv)
goto end;
if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
goto end;
trailing_md = 0;
break;
case OPT_SERIAL:
if (cert_id_md == NULL)
@ -447,6 +449,7 @@ int ocsp_main(int argc, char **argv)
goto end;
if (!sk_OPENSSL_STRING_push(reqnames, opt_arg()))
goto end;
trailing_md = 0;
break;
case OPT_INDEX:
ridx_filename = opt_arg();
@ -490,7 +493,7 @@ int ocsp_main(int argc, char **argv)
goto end;
break;
case OPT_MD:
if (cert_id_md != NULL) {
if (trailing_md) {
BIO_printf(bio_err,
"%s: Digest must be before -cert or -serial\n",
prog);
@ -498,9 +501,16 @@ int ocsp_main(int argc, char **argv)
}
if (!opt_md(opt_unknown(), &cert_id_md))
goto opthelp;
trailing_md = 1;
break;
}
}
if (trailing_md) {
BIO_printf(bio_err, "%s: Digest must be before -cert or -serial\n",
prog);
goto opthelp;
}
argc = opt_num_rest();
if (argc != 0)
goto opthelp;

View File

@ -266,24 +266,25 @@ only be used for testing purposes.
=item B<-validity_period nsec>, B<-status_age age>
these options specify the range of times, in seconds, which will be tolerated
in an OCSP response. Each certificate status response includes a B<notBefore> time and
an optional B<notAfter> time. The current time should fall between these two values, but
the interval between the two times may be only a few seconds. In practice the OCSP
responder and clients clocks may not be precisely synchronised and so such a check
may fail. To avoid this the B<-validity_period> option can be used to specify an
acceptable error range in seconds, the default value is 5 minutes.
in an OCSP response. Each certificate status response includes a B<notBefore>
time and an optional B<notAfter> time. The current time should fall between
these two values, but the interval between the two times may be only a few
seconds. In practice the OCSP responder and clients clocks may not be precisely
synchronised and so such a check may fail. To avoid this the
B<-validity_period> option can be used to specify an acceptable error range in
seconds, the default value is 5 minutes.
If the B<notAfter> time is omitted from a response then this means that new status
information is immediately available. In this case the age of the B<notBefore> field
is checked to see it is not older than B<age> seconds old. By default this additional
check is not performed.
If the B<notAfter> time is omitted from a response then this means that new
status information is immediately available. In this case the age of the
B<notBefore> field is checked to see it is not older than B<age> seconds old.
By default this additional check is not performed.
=item B<-[digest]>
this option sets digest algorithm to use for certificate identification
in the OCSP request.
Any digest supported by the OpenSSL B<dgst> command can be used.
The default is SHA-1.
this option sets digest algorithm to use for certificate identification in the
OCSP request. Any digest supported by the OpenSSL B<dgst> command can be used.
The default is SHA-1. This option may be used multiple times to specify the
digest used by subsequent certificate identifiers.
=back