new sigopt and PSS support for req and x509 utilities

apps/apps.h

diff --git a/apps/apps.h b/apps/apps.h
index 596a39a..adfaa29 100644
--- a/apps/apps.h
+++ b/apps/apps.h
@@ -317,6 +317,10 @@
 int pkey_ctrl_string(EVP_PKEY_CTX *ctx, char *value);
 int init_gen_str(BIO *err, EVP_PKEY_CTX **pctx,
 			const char *algname, ENGINE *e, int do_param);
+int do_X509_sign(BIO *err, X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
+			STACK_OF(OPENSSL_STRING) *sigopts);
+int do_X509_REQ_sign(BIO *err, X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
+			STACK_OF(OPENSSL_STRING) *sigopts);
 #ifndef OPENSSL_NO_PSK
 extern char *psk_key;
 #endif

apps/req.c

diff --git a/apps/req.c b/apps/req.c
index 820cd18..37670a0 100644
--- a/apps/req.c
+++ b/apps/req.c
@@ -165,7 +165,7 @@
 	EVP_PKEY_CTX *genctx = NULL;
 	const char *keyalg = NULL;
 	char *keyalgstr = NULL;
-	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL;
+	STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
 	EVP_PKEY *pkey=NULL;
 	int i=0,badops=0,newreq=0,verbose=0,pkey_type=-1;
 	long newkey = -1;
@@ -310,6 +310,15 @@
 			if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, *(++argv)))
 				goto bad;
 			}
+		else if (strcmp(*argv,"-sigopt") == 0)
+			{
+			if (--argc < 1)
+				goto bad;
+			if (!sigopts)
+				sigopts = sk_OPENSSL_STRING_new_null();
+			if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
+				goto bad;
+			}
 		else if (strcmp(*argv,"-batch") == 0)
 			batch=1;
 		else if (strcmp(*argv,"-newhdr") == 0)
@@ -858,8 +867,9 @@
 					extensions);
 				goto end;
 				}
-			
-			if (!(i=X509_sign(x509ss,pkey,digest)))
+
+			i=do_X509_sign(bio_err, x509ss, pkey, digest, sigopts);
+			if (!i)
 				{
 				ERR_print_errors(bio_err);
 				goto end;
@@ -883,7 +893,8 @@
 					req_exts);
 				goto end;
 				}
-			if (!(i=X509_REQ_sign(req,pkey,digest)))
+			i=do_X509_REQ_sign(bio_err, req, pkey, digest, sigopts);
+			if (!i)
 				{
 				ERR_print_errors(bio_err);
 				goto end;
@@ -1084,6 +1095,8 @@
 		EVP_PKEY_CTX_free(genctx);
 	if (pkeyopts)
 		sk_OPENSSL_STRING_free(pkeyopts);
+	if (sigopts)
+		sk_OPENSSL_STRING_free(sigopts);
 #ifndef OPENSSL_NO_ENGINE
 	if (gen_eng)
 		ENGINE_free(gen_eng);
@@ -1756,3 +1769,53 @@
 #endif
 	return 1;
 	}
+
+static int do_sign_init(BIO *err, EVP_MD_CTX *ctx, EVP_PKEY *pkey,
+			const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
+	{
+	EVP_PKEY_CTX *pkctx = NULL;
+	int i;
+	EVP_MD_CTX_init(ctx);
+	if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
+		return 0;
+	for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++)
+		{
+		char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
+		if (pkey_ctrl_string(pkctx, sigopt) <= 0)
+			{
+			BIO_printf(err, "parameter error \"%s\"\n", sigopt);
+			ERR_print_errors(bio_err);
+			return 0;
+			}
+		}
+	return 1;
+	}
+
+int do_X509_sign(BIO *err, X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
+			STACK_OF(OPENSSL_STRING) *sigopts)
+	{
+	int rv;
+	EVP_MD_CTX mctx;
+	EVP_MD_CTX_init(&mctx);
+	rv = do_sign_init(err, &mctx, pkey, md, sigopts);
+	if (rv > 0)
+		rv = X509_sign_ctx(x, &mctx);
+	EVP_MD_CTX_cleanup(&mctx);
+	return rv > 0 ? 1 : 0;
+	}
+
+
+int do_X509_REQ_sign(BIO *err, X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
+			STACK_OF(OPENSSL_STRING) *sigopts)
+	{
+	int rv;
+	EVP_MD_CTX mctx;
+	EVP_MD_CTX_init(&mctx);
+	rv = do_sign_init(err, &mctx, pkey, md, sigopts);
+	if (rv > 0)
+		rv = X509_REQ_sign_ctx(x, &mctx);
+	EVP_MD_CTX_cleanup(&mctx);
+	return rv > 0 ? 1 : 0;
+	}
+		
+	

apps/x509.c

diff --git a/apps/x509.c b/apps/x509.c
index e7e46d7..ff56f30 100644
--- a/apps/x509.c
+++ b/apps/x509.c
@@ -157,9 +157,10 @@
 static int sign (X509 *x, EVP_PKEY *pkey,int days,int clrext, const EVP_MD *digest,
 						CONF *conf, char *section);
 static int x509_certify (X509_STORE *ctx,char *CAfile,const EVP_MD *digest,
-			 X509 *x,X509 *xca,EVP_PKEY *pkey,char *serial,
-			 int create,int days, int clrext, CONF *conf, char *section,
-						ASN1_INTEGER *sno);
+			 X509 *x,X509 *xca,EVP_PKEY *pkey,
+			 STACK_OF(OPENSSL_STRING) *sigopts,
+			 char *serial, int create ,int days, int clrext,
+			 CONF *conf, char *section, ASN1_INTEGER *sno);
 static int purpose_print(BIO *bio, X509 *cert, X509_PURPOSE *pt);
 static int reqfile=0;
 
@@ -172,6 +173,7 @@
 	X509_REQ *req=NULL;
 	X509 *x=NULL,*xca=NULL;
 	ASN1_OBJECT *objtmp;
+	STACK_OF(OPENSSL_STRING) *sigopts = NULL;
 	EVP_PKEY *Upkey=NULL,*CApkey=NULL;
 	ASN1_INTEGER *sno = NULL;
 	int i,num,badops=0;
@@ -271,6 +273,15 @@
 			if (--argc < 1) goto bad;
 			CAkeyformat=str2fmt(*(++argv));
 			}
+		else if (strcmp(*argv,"-sigopt") == 0)
+			{
+			if (--argc < 1)
+				goto bad;
+			if (!sigopts)
+				sigopts = sk_OPENSSL_STRING_new_null();
+			if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, *(++argv)))
+				goto bad;
+			}
 		else if (strcmp(*argv,"-days") == 0)
 			{
 			if (--argc < 1) goto bad;
@@ -972,7 +983,8 @@
 				
 				assert(need_rand);
 				if (!x509_certify(ctx,CAfile,digest,x,xca,
-					CApkey, CAserial,CA_createserial,days, clrext,
+					CApkey, sigopts,
+					CAserial,CA_createserial,days, clrext,
 					extconf, extsect, sno))
 					goto end;
 				}
@@ -1083,6 +1095,8 @@
 	X509_free(xca);
 	EVP_PKEY_free(Upkey);
 	EVP_PKEY_free(CApkey);
+	if (sigopts)
+		sk_OPENSSL_STRING_free(sigopts);
 	X509_REQ_free(rq);
 	ASN1_INTEGER_free(sno);
 	sk_ASN1_OBJECT_pop_free(trust, ASN1_OBJECT_free);
@@ -1133,8 +1147,11 @@
 	}
 
 static int x509_certify(X509_STORE *ctx, char *CAfile, const EVP_MD *digest,
-	     X509 *x, X509 *xca, EVP_PKEY *pkey, char *serialfile, int create,
-	     int days, int clrext, CONF *conf, char *section, ASN1_INTEGER *sno)
+	     		X509 *x, X509 *xca, EVP_PKEY *pkey,
+			STACK_OF(OPENSSL_STRING) *sigopts,
+	  		char *serialfile, int create,
+	     		int days, int clrext, CONF *conf, char *section,
+			ASN1_INTEGER *sno)
 	{
 	int ret=0;
 	ASN1_INTEGER *bs=NULL;
@@ -1193,7 +1210,8 @@
                 if (!X509V3_EXT_add_nconf(conf, &ctx2, section, x)) goto end;
 		}
 
-	if (!X509_sign(x,pkey,digest)) goto end;
+	if (!do_X509_sign(bio_err, x, pkey, digest, sigopts))
+		goto end;
 	ret=1;
 end:
 	X509_STORE_CTX_cleanup(&xsc);