The oscpResponder.pl script requires the ocsp responder to support DSA

 the following patch can be applied to openssl 0.9.7b or 0.9.7c:

 --- openssl-0.9.7b.ORIG/apps/ocsp.c	2003-03-26 02:47:06.000000000 +0200

 +++ openssl-0.9.7b/apps/ocsp.c	2004-02-22 16:11:18.000000000 +0200

 @@ -1115,7 +1115,16 @@

  	OCSP_copy_nonce(bs, req);

 -	OCSP_basic_sign(bs, rcert, rkey, EVP_sha1(), rother, flags);

 +	{

 +		/*in case of DSA keys we should use EVP_dss1()*/

 +		const EVP_MD *evp_md;

 +		/*

 +		 * - EVP_dss1 only or can be EVP_dss for some DSA keys ?

 +		 * - should we use method EVP_PKEY_type() ?

 +		 */

 +		evp_md = (rkey->type == EVP_PKEY_DSA) ? EVP_dss1() : EVP_sha1();

 +		OCSP_basic_sign(bs, rcert, rkey, evp_md, rother, flags);

 +	}

  	*resp = OCSP_response_create(OCSP_RESPONSE_STATUS_SUCCESSFUL, bs);