From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.server123.net (Postfix) with ESMTPS for ; Thu, 26 Dec 2019 21:55:32 +0100 (CET) Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xBQK7CC8041254 for ; Thu, 26 Dec 2019 15:12:58 -0500 Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 2x1f3eync6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 26 Dec 2019 15:12:58 -0500 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xBQKA6mS013461 for ; Thu, 26 Dec 2019 20:12:57 GMT Received: from b03cxnp08028.gho.boulder.ibm.com (b03cxnp08028.gho.boulder.ibm.com [9.17.130.20]) by ppma03dal.us.ibm.com with ESMTP id 2x1b17ebpb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 26 Dec 2019 20:12:57 +0000 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xBQKCus262718400 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 26 Dec 2019 20:12:56 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 48EE87805E for ; Thu, 26 Dec 2019 20:12:56 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1A09E78060 for ; Thu, 26 Dec 2019 20:12:55 +0000 (GMT) Received: from mail.gmx.ibm.com (unknown [9.209.244.201]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTPS for ; Thu, 26 Dec 2019 20:12:55 +0000 (GMT) From: "Julio Cesar Faracco - jfaracco@br.ibm.com" Date: Thu, 26 Dec 2019 20:12:43 +0000 Message-ID: <98c8be53726f40cfaa4e3fbec451dc75@br.ibm.com> Content-Language: en-US Content-Type: multipart/mixed; boundary="_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_" MIME-Version: 1.0 Subject: [dm-crypt] How to compress LUKS2 header? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "dm-crypt@saout.de" --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi all, I'm trying to compress a LUKS2 header file, but I'm not seeing any sensible reduction. I used ZIP and GZIP, but I got 0% of reduction. :-( Do you have any suggestions of what algorithm should be used to compress this type of file? Thanks! -- Julio Cesar Faracco= --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_ Content-Type: image/png; name="OutlookEmoji-LinkedIn: http://br.linkedin.com/pub/julio-faracco/43/681/39791ef43e7-00a7-4ae7-bfdc-e90de97a736f.png" Content-Description: OutlookEmoji-LinkedIn: http://br.linkedin.com/pub/julio-faracco/43/681/39791ef43e7-00a7-4ae7-bfdc-e90de97a736f.png Content-Disposition: attachment; filename="OutlookEmoji-LinkedIn: http://br.linkedin.com/pub/julio-faracco/43/681/39791ef43e7-00a7-4ae7-bfdc-e90de97a736f.png"; size=962; creation-date="Thu, 26 Dec 2019 20:11:19 GMT"; modification-date="Thu, 26 Dec 2019 20:11:32 GMT" Content-ID: Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAADiUlEQVQ4jSXQ/U8UdACA8W+WIXAg TJw2qUaZW6WJgSsX0vpBmzMXDl2lopYGJG8R4EEgLwWU0CIU1KHyYnAiEIggesDJS/IqxAFCeLzc BRx4wvF253g54OkH/oBn++wRp2S9bAy+yvrIdOykWVj/IMMmshgb6Q0cgq9hG/gXEl8ZVr7ZSLwy sfXKxOJIKutPpHMkQ4N4JyiPQwUdhLTpiOuYILp5knMds0R2GIluGCX84SThDyeJajQQVjtJWNUU YeVTuCe3sOmLSwjroJv4PDES3NVLSq+aC481SJtVhHaOEK7UklSnI7FGS3ylhp/laqJKNZyvnCYo ZxC7Pb8gXvXLI1ppIKmxnafANJDfpSe+doTYGj1RlTriqp8RfU9D3P0hou8MEXX7GT/e0mP/2SXE Br88Qh/pSX3UxTRgBPI6DYRXjCKtNOAnf06IYpbv74wQUjiENH+YiKJppPmzrHFJQqw+V8QxpQ7/ +mYyO7u53vAvgSWteFX0861Ci/9dPWcKNIQUqQnNV+GTpsT7igr/rBls9qYjzANzOV49RHyrmpax JXrHoLhlFMXgInXaZfLadPxZ30d13wwN/y0gq9Xh90cjbhENSFwvIizPFrK/pIeIpn6GgedAaU07 3dpxFoFlTMzNGwETy8DkLFwrUXMw+D42u39H2ATk4FSk5UzVAEtLS7BgIqtNx4NRYBbmDOCR3M8n EY2MTxph4SkVTVO4esmxc45BmPvmsDmrl6PFjzEBLC+Q1qimfAQwQatqAeeQdrYEtNLcNwMmA+Ud sN1DgeWOFMTLX+eyOUXDVzIVi6xEV8q7UQwsgXEZRY+BN7+r4Q2fZuSd4ywuT1OlmuOtg7lItqUg Nnpmsy2ph+PZPSsC0zzXy1qo18yDaYm6wSleO3YThxOl/P1kAhhH3qJiy55fsXc8j7DzTGXTTw24 ydQMABPAxao+StWgXwR5H9gfLmLdgWJKlSuTS5om2LrvMhYOkQiLk7cQ3l1Izg7zabKK/bENvP6N AueQdtwiKtjlpUB8dA/xgZydJyvZe7qA9w8VYuaYhtmOy4gNR2WIw/8gTo+xyqMRqy8fYO7ejcUB Jea7M7F1ucGaj8sQH95GbE/F7N3fsHbOQrydhLlrAiIgo4xXvO/ywql6hHsGL36exqp9xQiXLKxc olnrGMPq9xJ4ySkRyc5Y1jklYLk1kbW7YvC8Ws7/y3LZKRStMVgAAAAASUVORK5CYII= --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_ Content-Type: image/png; name="OutlookEmoji-Blogger: http://juliofaracco.blogspot.com.br/7acffea9-ae8b-4e7c-bd26-df0eb33faaaf.png" Content-Description: OutlookEmoji-Blogger: http://juliofaracco.blogspot.com.br/7acffea9-ae8b-4e7c-bd26-df0eb33faaaf.png Content-Disposition: attachment; filename="OutlookEmoji-Blogger: http://juliofaracco.blogspot.com.br/7acffea9-ae8b-4e7c-bd26-df0eb33faaaf.png"; size=802; creation-date="Thu, 26 Dec 2019 20:11:19 GMT"; modification-date="Thu, 26 Dec 2019 20:11:32 GMT" Content-ID: <20c2ecfc-7729-47a9-b20c-5873b9a255e2> Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAC6UlEQVQ4jTXTS2yUdRSG8X8LbZGW ppRaoEY0GDTujCvjwoVLjbjFcJtOZ3qjtEOvmkYJbnQlghJdqAuJG6MIOzdiiBExEYgYNVEQEiCa tkxnykz7zeX7fi5GF2d5kud9n3OCaix+J8VIF7N97k32MLWB8TaL87uY3yAa7mZih+qRLZLZbnIb rZx4QdmqEH34vFomkAocalIeDmQD+4NooI0DgVQ72XWkg2Q4kG4WDfXIv79HKMx3q44+wKFOhXRQ GgoMBvobszr6sGhoG/sDB4LKWCC7nkxgbJNgvJn+JvY2WxzZIjqdklz6lBsXWfyFa1+pnJlTPrZD fiRYOdKhmg4cDOS6hGiql/RGcX8nH+8j/5s1RHXERer31CoLogtvK422MRAYalUeDAozW4X6XBOZ oJpp5btT6ijXiK5d5dJnXL9sEcp3yD3CS4GDraKRdrUjHcKt1/rUDrcrTD7OrYuqtVjl98vy7w0q HX3WyrfnFWIoqX1+lPnnrO1vaRQ91SEYX08qWO3fzF8/WIN4leXrREvcb0SpWBDB9avK072kg9Wp 7cLabENZNbtF7c73bkOCcl5R3FhaWZSghGL1puW5bQ0Lo23C0htPkO4QZXfy53k1MX/8KP4oq/zu M0ondnNqD9fOEVMv31WZfFqSWa8y96SQn+ol1cJAN1c+ISmxcl/89Qd8kebsMc69ycJPDbLblxne 2aCe6RNq043Lq+8LnH6FpZ8VUUyoixVRllhTZfmu+pnX1VOhoXOmU6hPt0pGWxUPNLk396ja2cPc +oa/fyV/g6WbFK5w9wJfvqU4+5R/hoJ4PDD+kCC3icw6MhsU9zUrZFokk5tVJ3qUR/rUD3VaefVB yeRjigd7xXuCykyQjAUG+4T68d1WsxsZbCK9TvV/vIFAf3Oj7Uxgb1Ds/+/pcsHaUJfSyRcFlbzl ky8z2c74JtFUj2SuXTLbpZDbpTi9lYltjPVYONrOWAu57UrH96q54V8Ag+KGIv2S8QAAAABJRU5E rkJggg== --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_ Content-Type: image/png; name="OutlookEmoji-Facebook: http://www.facebook.com/julio.faracco89694cc7-6d07-4424-b0e5-703e22cd28a2.png" Content-Description: OutlookEmoji-Facebook: http://www.facebook.com/julio.faracco89694cc7-6d07-4424-b0e5-703e22cd28a2.png Content-Disposition: attachment; filename="OutlookEmoji-Facebook: http://www.facebook.com/julio.faracco89694cc7-6d07-4424-b0e5-703e22cd28a2.png"; size=843; creation-date="Thu, 26 Dec 2019 20:11:19 GMT"; modification-date="Thu, 26 Dec 2019 20:11:32 GMT" Content-ID: <7769df9d-f484-46b1-b885-a9175cf08191> Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAADEklEQVQ4jS2T209bBQCHzx9joolm GAor9EZvrGSwYqHQ9pzTNlDicJtMEzWa6ALFtlxqygq90B5Zt6G+MBIvcT7sov4VS9Q9jAcTJqFN S6/nnM8HeP09fA+/fJ+AekxTgwbQawNdQIV2F9DhGOhdbGiA2gTgDIDXCE0Nrse/xRpN4wquMiGu 4JZSWMUkbnkZh7zNVCjFaHCLgZkiIzN3cYjbvH/nADQQGoA1muaSuItJVrDJCgNShT75HgapiMF/ n9HpHWyzWSzXFYbEXS4Hf+RdX54OIPTa4AquYpIVhqbz2ANljIEKxvA+w1KJS9IOK2u/8s9RjRpV WoA7pDASyXHCKwS6MCGuYJMV7IEy7kAZ47SCRdrDOpvBFC5w9KoB1NGp02iDY2YDa2gFlRMEVHBL KQakCsZAhaEpBZP4EEu4gtmfxjZVBg16gHHsDp7IAYPiHrbgOrRBaHfBKibpk+9hDO9jkfawhCu8 dSWON5bFNZcAHXQNPNIW/ZM5bIs/YfB9cw5AB7e8jEEqMiyVsM5mMPvTeGNZal34izoANHSgxhnQ N7mBe+E+TbWKQBtGr21iFRXs4jZ2XwGbfwtXKM7RMfxdPQVOQIOXx11enrYYi2VxBNPAfwiqDtZA lndCJS5HC5ikB5jnHvD2e18xPl/EEUnS7EG9A55wGnc0zZvjBZwLB1Q7OkILsITXeCO4Rn90HUMg R7+cx34zx+B0AnOoQPvCPGtgA1e4xID4HYOSQgsQNBU8Uh5zZA9ndBd3YJ/BSQVXtMKIr4zT/z2d TgcVcExs4PSWsIs/MOzLnJuo9uDafIa51Z+5+fUjPlp+wo3473yQeMzS8jM+jP+BTg2VNoufPeSL 9afc3nzK2HwKaCB0gPFYBin+iNvpQz5O/MbS+jNiyUNupZ6wkHpOXT+P7dP0nywlfyH45SGexRwa KoLWgRufP8Ytl7jiT+CZSOPwZbAHNhkTSwyH8oTkBF7vDkOeIlcjd3GGK0Q+eQ5dENCPUC9O0mmC dl70GV0aOrymC2oNutACTvV/qQJVAF7wP2Er2a7qVM4RAAAAAElFTkSuQmCC --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_ Content-Type: image/png; name="OutlookEmoji-IBM06e9eef8-8ca7-4204-9482-dac7478f14e5.png" Content-Description: OutlookEmoji-IBM06e9eef8-8ca7-4204-9482-dac7478f14e5.png Content-Disposition: attachment; filename="OutlookEmoji-IBM06e9eef8-8ca7-4204-9482-dac7478f14e5.png"; size=434; creation-date="Thu, 26 Dec 2019 20:11:19 GMT"; modification-date="Thu, 26 Dec 2019 20:11:32 GMT" Content-ID: <210bc05d-316c-411a-a798-321942525a16> Content-Transfer-Encoding: base64 iVBORw0KGgoAAAANSUhEUgAAAFMAAAAeCAYAAABQdCKyAAABeUlEQVRoge2aO47DIBCGOdmegIvk FPR7FxrvAbahSklnyRJtCkvbRLK0zWxFdkN4DUyy2JpPQpEiP8IX/rENFuLtBK3NIz6+ups8X0HN G6QQ75+oVgP1McUoMn1T8wbT5bu749OyZjs+LSu9zOIWTDUsk5DhYh5G/nYOZCRzUW+J+C5rZth6 ZCrjop1Wxj1HZnELphqWSciDzJpYFw9aiGyImjf0Pq1Rx0Qcy9Ay5fmaPkdjraOskQ+/Cb0Hk4Rl EvLSmLfeY0bPgYir1BYAAKS2r435CDJLIgHSMlMXGOz3XDP/GZZJyOFi7p/Ha2ti7jkdy5Ayey5A Q8lk2mGZhBzucfLvHGbudsiz25qZgnKiI5wQLknimjkoLJOQwy1bhDEP62Y4v4lZD9q1zJYFtdgi Wk5Ij0xlHEhtf+9ti7qZKNOygjLu9qmMY5mtSG3vRqbUdryY974eE4u5r5uxpd/WmPvReDcyR5FJ 9eJW6sWD1AWEomb6P+kHbf8olztgqgAAAAAASUVORK5CYII= --_005_98c8be53726f40cfaa4e3fbec451dc75bribmcom_--