From: Dr. Stephen Henson <steve@openssl.org>
Date: Tue, 4 Apr 2006 18:16:03 +0000 (+0000)
Subject: New function to retrieve ASN1 info on public key algorithms. New command
X-Git-Tag: OpenSSL_0_9_8k^2~1448
X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff_plain;h=0b33dac3100c68ab19a6be804cdeaaa87582b9a0

New function to retrieve ASN1 info on public key algorithms. New command
line option to print out info.
---

diff --git a/CHANGES b/CHANGES
index 462befa49f..e173a298a6 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4,6 +4,11 @@
 
  Changes between 0.9.8a and 0.9.9  [xx XXX xxxx]
 
+  *) New function EVP_PKEY_asn1_get0_info() to retrieve information about
+     public key algorithms. New option to openssl utility:
+     "list-public-key-algorithms" to print out info.
+     [Steve Henson]
+
   *) Implement the Supported Elliptic Curves Extension for
      ECC ciphersuites from draft-ietf-tls-ecc-12.txt.
      [Douglas Stebila]
diff --git a/apps/openssl.c b/apps/openssl.c
index 02d86d546d..26c7297d66 100644
--- a/apps/openssl.c
+++ b/apps/openssl.c
@@ -141,6 +141,7 @@ static unsigned long MS_CALLBACK hash(const void *a_void);
 static int MS_CALLBACK cmp(const void *a_void,const void *b_void);
 static LHASH *prog_init(void );
 static int do_cmd(LHASH *prog,int argc,char *argv[]);
+static void list_pkey(BIO *out);
 char *default_config_file=NULL;
 
 /* Make sure there is only one when MONOLITH is defined */
@@ -367,6 +368,7 @@ end:
 #define LIST_STANDARD_COMMANDS "list-standard-commands"
 #define LIST_MESSAGE_DIGEST_COMMANDS "list-message-digest-commands"
 #define LIST_CIPHER_COMMANDS "list-cipher-commands"
+#define LIST_PUBLIC_KEY_ALGORITHMS "list-public-key-algorithms"
 
 static int do_cmd(LHASH *prog, int argc, char *argv[])
 	{
@@ -409,7 +411,8 @@ static int do_cmd(LHASH *prog, int argc, char *argv[])
 		}
 	else if ((strcmp(argv[0],LIST_STANDARD_COMMANDS) == 0) ||
 		(strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0) ||
-		(strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0))
+		(strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0) ||
+		(strcmp(argv[0],LIST_PUBLIC_KEY_ALGORITHMS) == 0))
 		{
 		int list_type;
 		BIO *bio_stdout;
@@ -418,6 +421,8 @@ static int do_cmd(LHASH *prog, int argc, char *argv[])
 			list_type = FUNC_TYPE_GENERAL;
 		else if (strcmp(argv[0],LIST_MESSAGE_DIGEST_COMMANDS) == 0)
 			list_type = FUNC_TYPE_MD;
+		else if (strcmp(argv[0],LIST_PUBLIC_KEY_ALGORITHMS) == 0)
+			list_type = FUNC_TYPE_PKEY;
 		else /* strcmp(argv[0],LIST_CIPHER_COMMANDS) == 0 */
 			list_type = FUNC_TYPE_CIPHER;
 		bio_stdout = BIO_new_fp(stdout,BIO_NOCLOSE);
@@ -427,10 +432,15 @@ static int do_cmd(LHASH *prog, int argc, char *argv[])
 		bio_stdout = BIO_push(tmpbio, bio_stdout);
 		}
 #endif
-		
-		for (fp=functions; fp->name != NULL; fp++)
-			if (fp->type == list_type)
-				BIO_printf(bio_stdout, "%s\n", fp->name);
+		if (list_type == FUNC_TYPE_PKEY)
+			list_pkey(bio_stdout);	
+		else
+			{
+			for (fp=functions; fp->name != NULL; fp++)
+				if (fp->type == list_type)
+					BIO_printf(bio_stdout, "%s\n",
+								fp->name);
+			}
 		BIO_free_all(bio_stdout);
 		ret=0;
 		goto end;
@@ -485,6 +495,39 @@ static int SortFnByName(const void *_f1,const void *_f2)
     return strcmp(f1->name,f2->name);
     }
 
+static void list_pkey(BIO *out)
+	{
+	int i;
+	for (i = 0; i < EVP_PKEY_asn1_get_count(); i++)
+		{
+		const EVP_PKEY_ASN1_METHOD *ameth;
+		int pkey_id, pkey_base_id, pkey_flags;
+		const char *pinfo, *pem_str;
+		ameth = EVP_PKEY_asn1_get0(i);
+		EVP_PKEY_asn1_get0_info(&pkey_id, &pkey_base_id, &pkey_flags,
+						&pinfo, &pem_str, ameth);
+		if (pkey_flags & ASN1_PKEY_ALIAS)
+			{
+			BIO_printf(out, "Name: %s\n", 
+					OBJ_nid2ln(pkey_id));
+			BIO_printf(out, "\tType: Alias to %s\n",
+					OBJ_nid2ln(pkey_base_id));
+			}
+		else
+			{
+			BIO_printf(out, "Name: %s\n", pinfo);
+			BIO_printf(out, "\tType: %s Algorithm\n", 
+				pkey_flags & ASN1_PKEY_DYNAMIC ?
+					"External" : "Builtin");
+			BIO_printf(out, "\tOID: %s\n", OBJ_nid2ln(pkey_id));
+			if (pem_str == NULL)
+				pem_str = "(none)";
+			BIO_printf(out, "\tPEM string: %s\n", pem_str);
+			}
+					
+		}
+	}
+
 static LHASH *prog_init(void)
 	{
 	LHASH *ret;
diff --git a/apps/progs.h b/apps/progs.h
index 67cc6df1fd..ec5b9af2b4 100644
--- a/apps/progs.h
+++ b/apps/progs.h
@@ -47,6 +47,7 @@ extern int ts_main(int argc,char *argv[]);
 #define FUNC_TYPE_GENERAL	1
 #define FUNC_TYPE_MD		2
 #define FUNC_TYPE_CIPHER	3
+#define FUNC_TYPE_PKEY		4
 
 typedef struct {
 	int type;
diff --git a/apps/progs.pl b/apps/progs.pl
index 36569d2661..aac86a3d9e 100644
--- a/apps/progs.pl
+++ b/apps/progs.pl
@@ -13,6 +13,7 @@ print <<'EOF';
 #define FUNC_TYPE_GENERAL	1
 #define FUNC_TYPE_MD		2
 #define FUNC_TYPE_CIPHER	3
+#define FUNC_TYPE_PKEY		4
 
 typedef struct {
 	int type;
diff --git a/crypto/asn1/ameth_lib.c b/crypto/asn1/ameth_lib.c
index 3616816c1c..6f98872cf1 100644
--- a/crypto/asn1/ameth_lib.c
+++ b/crypto/asn1/ameth_lib.c
@@ -186,6 +186,25 @@ int EVP_PKEY_asn1_add(const EVP_PKEY_ASN1_METHOD *ameth)
 	return 1;
 	}
 
+int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id, int *ppkey_flags,
+				const char **pinfo, const char **ppem_str,
+					const EVP_PKEY_ASN1_METHOD *ameth)
+	{
+	if (!ameth)
+		return 0;
+	if (ppkey_id)
+		*ppkey_id = ameth->pkey_id;
+	if (ppkey_base_id)
+		*ppkey_base_id = ameth->pkey_base_id;
+	if (ppkey_flags)
+		*ppkey_flags = ameth->pkey_flags;
+	if (pinfo)
+		*pinfo = ameth->info;
+	if (ppem_str)
+		*ppem_str = ameth->pem_str;
+	return 1;
+	}
+
 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 					const char *pem_str, const char *info)
 	{
diff --git a/crypto/asn1/asn1_locl.h b/crypto/asn1/asn1_locl.h
index d21108d9bb..a81f56238f 100644
--- a/crypto/asn1/asn1_locl.h
+++ b/crypto/asn1/asn1_locl.h
@@ -71,9 +71,6 @@ struct asn1_pctx_st
 
 /* ASN1 public key method structure */
 
-#define ASN1_PKEY_ALIAS		0x1
-#define ASN1_PKEY_DYNAMIC	0x2
-
 struct evp_pkey_asn1_method_st
 	{
 	int pkey_id;
diff --git a/crypto/dh/dh_ameth.c b/crypto/dh/dh_ameth.c
index ba3ff562a1..03b40d0e5c 100644
--- a/crypto/dh/dh_ameth.c
+++ b/crypto/dh/dh_ameth.c
@@ -149,7 +149,7 @@ const EVP_PKEY_ASN1_METHOD dh_asn1_meth =
 	EVP_PKEY_DH,
 	0,
 
-	"dh",
+	"DH",
 	"OpenSSL PKCS#3 DH method",
 
 	0,
diff --git a/crypto/evp/evp.h b/crypto/evp/evp.h
index 9378d441e3..e4cbd2d68f 100644
--- a/crypto/evp/evp.h
+++ b/crypto/evp/evp.h
@@ -856,11 +856,17 @@ int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
 		    EVP_PBE_KEYGEN *keygen);
 void EVP_PBE_cleanup(void);
 
+#define ASN1_PKEY_ALIAS		0x1
+#define ASN1_PKEY_DYNAMIC	0x2
+
 int EVP_PKEY_asn1_get_count(void);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find(int type);
 const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(const char *str, int len);
 int EVP_PKEY_asn1_add(const EVP_PKEY_ASN1_METHOD *ameth);
+int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *pkey_base_id, int *ppkey_flags,
+				const char **pinfo, const char **ppem_str,
+					const EVP_PKEY_ASN1_METHOD *ameth);
 
 EVP_PKEY_ASN1_METHOD* EVP_PKEY_asn1_new(int id,
 					const char *pem_str, const char *info);