From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 06 Aug 2025 16:04:55 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1ujelD-007eyd-14 for lore@lore.pengutronix.de; Wed, 06 Aug 2025 16:04:55 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ujelC-0004Ad-Pj for lore@pengutronix.de; Wed, 06 Aug 2025 16:04:55 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=quqWzhmRcfXE5Y1Lq4BCB+aZVJ8CkoAuUJ3nzo6HK7I=; b=rnmKrnFH3CxmL2mReAsqu14+2Y w4E/kiF53LYRhblqCHRcPDfg5544UjyT1LwhMXLyFAQvPo139eAcmURsGAjEQgCEpuy466+S44oHR JNAc8ohn/frx8c/kat45sVXxMrk2qSJiRFe1JWq1/4i+/R0ESAUBQcUytokutf/8TD7CX8aGKePkw WsKk3rLXs0i+fkI9EtTxhlRDLWAxKPq24Kf+gsT2IvVtXnCEIV7KBt3vhOtmNGl9aq0Sjshq8jyHh iKRzI8nlNlYTwLxXVthg3AG0eVjAf9xmBPEAGf8JmoJeyOZ5tGh1TpMiV9W123QLEwrU1U4AJxvTf Xk6GA9Lg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujekn-0000000FNfI-20Kd; Wed, 06 Aug 2025 14:04:29 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1ujegZ-0000000FMt2-2Cxl for barebox@lists.infradead.org; Wed, 06 Aug 2025 14:00:08 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=geraet.fritz.box) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1ujegY-0002eR-7M; Wed, 06 Aug 2025 16:00:06 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Wed, 6 Aug 2025 16:00:02 +0200 Message-Id: <20250806140005.2866622-2-a.fatoum@barebox.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250806140005.2866622-1-a.fatoum@barebox.org> References: <20250806140005.2866622-1-a.fatoum@barebox.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250806_070007_562827_59168734 X-CRM114-Status: UNSURE ( 6.86 ) X-CRM114-Notice: Please train this message. X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.5 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 2/5] security: mark weaker passwords hashing algorithms insecure X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) It's well known that MD5 and SHA1 aren't suitable password hashing algorithms. Let's alert users to that fact by selecting HAS_INSECURE_DEFAULTS. Signed-off-by: Ahmad Fatoum --- security/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/security/Kconfig b/security/Kconfig index 88ebdeed2f64..3e21e1416e2f 100644 --- a/security/Kconfig +++ b/security/Kconfig @@ -63,10 +63,21 @@ choice config PASSWD_SUM_MD5 bool "MD5" select DIGEST_MD5_GENERIC + select HAS_INSECURE_DEFAULTS + help + MD5 had been widely used historically as a cryptographic hash function, + but has been found to suffer from extensive vulnerabilities. + Use of MD5 to hash passwords is strongly discouraged. config PASSWD_SUM_SHA1 bool "SHA1" select DIGEST_SHA1_GENERIC + select HAS_INSECURE_DEFAULTS + help + SHA1 had been widely used historically as a cryptographic hash function, + but has since been cryptographically broken. + SHA-1 was designed for speed and thus use as password hash is strongly + discouraged as it's easier for an attacker to brute force. config PASSWD_SUM_SHA256 bool "SHA256" -- 2.39.5