Implemented full BLISS support for IKEv2 public key authentication and the pki tool

src/libcharon/sa/authenticator.c

@@ -31,12 +31,15 @@ ENUM_BEGIN(auth_method_names, AUTH_RSA, AUTH_DSS,
 	"RSA signature",
 	"pre-shared key",
 	"DSS signature");
-ENUM_NEXT(auth_method_names, AUTH_ECDSA_256, AUTH_GSPM, AUTH_DSS,
+ENUM_NEXT(auth_method_names, AUTH_ECDSA_256, AUTH_NULL, AUTH_DSS,
 	"ECDSA-256 signature",
 	"ECDSA-384 signature",
 	"ECDSA-521 signature",
-	"secure password method");
-ENUM_NEXT(auth_method_names, AUTH_XAUTH_INIT_PSK, AUTH_HYBRID_RESP_RSA, AUTH_GSPM,
+	"secure password method",
+	"NULL authentication");
+ENUM_NEXT(auth_method_names, AUTH_BLISS, AUTH_BLISS, AUTH_NULL,
+	"BLISS signature");
+ENUM_NEXT(auth_method_names, AUTH_XAUTH_INIT_PSK, AUTH_HYBRID_RESP_RSA, AUTH_BLISS,
 	"XAuthInitPSK",
 	"XAuthRespPSK",
 	"XAuthInitRSA",
@@ -99,6 +102,7 @@ authenticator_t *authenticator_create_verifier(
 		case AUTH_ECDSA_256:
 		case AUTH_ECDSA_384:
 		case AUTH_ECDSA_521:
+		case AUTH_BLISS:
 			return (authenticator_t*)pubkey_authenticator_create_verifier(ike_sa,
 										sent_nonce, received_init, reserved);
 		case AUTH_PSK:

src/libcharon/sa/authenticator.h

@@ -79,6 +79,16 @@ enum auth_method_t {
 	 */
 	AUTH_GSPM = 12,
 
+	/**
+	 * NULL Authentication Method as specified in draft-ietf-ipsecme-ikev2-null-auth
+	 */
+	AUTH_NULL = 13,
+
+	/**
+	 * BLISS Authentication Method
+	 */
+	AUTH_BLISS = 220,
+
 	/**
 	 * IKEv1 initiator XAUTH with PSK, outside of IANA range
 	 */

src/libcharon/sa/ikev2/authenticators/pubkey_authenticator.c

@@ -106,6 +106,11 @@ METHOD(authenticator_t, build, status_t,
 					return status;
 			}
 			break;
+		case KEY_BLISS:
+			/* we currently use SHA512 only */
+			scheme = SIGN_BLISS_WITH_SHA512;
+			auth_method = AUTH_BLISS;
+			break;
 		default:
 			DBG1(DBG_IKE, "private key of type %N not supported",
 					key_type_names, private->get_type(private));
@@ -170,6 +175,10 @@ METHOD(authenticator_t, process, status_t,
 		case AUTH_ECDSA_521:
 			scheme = SIGN_ECDSA_521;
 			break;
+		case AUTH_BLISS:
+			key_type = KEY_BLISS;
+			scheme = SIGN_BLISS_WITH_SHA512;
+			break;
 		default:
 			return INVALID_ARG;
 	}