From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F6FBC43381 for ; Fri, 1 Mar 2019 18:00:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7C59C20842 for ; Fri, 1 Mar 2019 18:00:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389885AbfCAR76 (ORCPT ); Fri, 1 Mar 2019 12:59:58 -0500 Received: from vmicros1.altlinux.org ([194.107.17.57]:40344 "EHLO vmicros1.altlinux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389761AbfCAR7h (ORCPT ); Fri, 1 Mar 2019 12:59:37 -0500 Received: from imap.altlinux.org (imap.altlinux.org [194.107.17.38]) by vmicros1.altlinux.org (Postfix) with ESMTP id 33F8472CC53; Fri, 1 Mar 2019 20:59:35 +0300 (MSK) Received: from beacon.altlinux.org (unknown [185.6.174.98]) by imap.altlinux.org (Postfix) with ESMTPSA id E41504A4AE7; Fri, 1 Mar 2019 20:59:34 +0300 (MSK) From: Vitaly Chikunov To: Herbert Xu , David Howells , Mimi Zohar , Dmitry Kasatkin , linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 11/11] integrity: support EC-RDSA signatures for asymmetric_verify Date: Fri, 1 Mar 2019 20:59:18 +0300 Message-Id: <20190301175918.29694-12-vt@altlinux.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20190301175918.29694-1-vt@altlinux.org> References: <20190301175918.29694-1-vt@altlinux.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org Allow to use EC-RDSA signatures for IMA by determining signature type by the hash algorithm name. This works good for EC-RDSA since Streebog and EC-RDSA should always be used together. Cc: Mimi Zohar Cc: Dmitry Kasatkin Cc: linux-integrity@vger.kernel.org Signed-off-by: Vitaly Chikunov --- security/integrity/digsig_asymmetric.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c index d775e03fbbcc..99080871eb9f 100644 --- a/security/integrity/digsig_asymmetric.c +++ b/security/integrity/digsig_asymmetric.c @@ -104,9 +104,16 @@ int asymmetric_verify(struct key *keyring, const char *sig, memset(&pks, 0, sizeof(pks)); - pks.pkey_algo = "rsa"; pks.hash_algo = hash_algo_name[hdr->hash_algo]; - pks.encoding = "pkcs1"; + if (hdr->hash_algo == HASH_ALGO_STREEBOG_256 || + hdr->hash_algo == HASH_ALGO_STREEBOG_512) { + /* EC-RDSA and Streebog should go together. */ + pks.pkey_algo = "ecrdsa"; + pks.encoding = "raw"; + } else { + pks.pkey_algo = "rsa"; + pks.encoding = "pkcs1"; + } pks.digest = (u8 *)data; pks.digest_size = datalen; pks.s = hdr->sig; -- 2.11.0