Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hwtny-0007Rw-TE for pgsql-hackers@arkaria.postgresql.org; Sun, 11 Aug 2019 19:47:03 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.89) (envelope-from ) id 1hwtnx-0008Qw-DN for pgsql-hackers@arkaria.postgresql.org; Sun, 11 Aug 2019 19:47:01 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hwtnw-0008Qp-Mh for pgsql-hackers@lists.postgresql.org; Sun, 11 Aug 2019 19:47:01 +0000 Received: from meldrar.postgresql.org ([2a02:c0:301:0:ffff::31]) by makus.postgresql.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.92) (envelope-from ) id 1hwtnt-000219-4n for pgsql-hackers@postgresql.org; Sun, 11 Aug 2019 19:46:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=postgresql.org; s=20171124; h=Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=iVtYmASf5l80uaIKIgrofy4CeBSpy6fdFDVZ/t6k6VA=; b=w7bGU5fYWomFJoKfnuRJwbBHpN GhgZMxl3qOOZsxCVx5CLgEi/eSOq7VTd6J0gXInEzQrCeDM6/HZNztbzPzUbr8HO/sMGwE/3sWhkd t3q1tmZE/v7omWkOQi73CPAoaB2UEZOf870o3iyjyjwr6stHBM6mdAbx0MkrDsJH1sxQJkHVRKGG8 5WaDPu70hkMFUbQzw/C1gIQBaRh+R9JtOYpHZ6qIN5kV1aRP/+C2MkFaM4ug67LgQeRQHnFhCfgOe N4iz92IOEXea8ZL7huW4tFYxGxLbBKt5o34XkhCwu5fPoMt0yQrdSBA6Dtkq97lMuAspHeMKlafNh tF0wI6yg==; Received: from pool-173-77-254-165.nycmny.fios.verizon.net ([173.77.254.165] helo=Ph33r-Retina.home) by meldrar.postgresql.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.89) (envelope-from ) id 1hwtno-00079S-6B; Sun, 11 Aug 2019 19:46:54 +0000 Subject: Re: Add "password_protocol" connection parameter to libpq To: Peter Eisentraut , Jeff Davis , Stephen Frost , Michael Paquier Cc: pgsql-hackers@postgresql.org References: <227015d8417f2b4fef03f8966dbfa5cbcc4f44da.camel@j-davis.com> <20190809030021.GG3194@paquier.xyz> <3bbf5968ea705700a2605d6db74d8510bea7940b.camel@j-davis.com> <20190809100922.GI3194@paquier.xyz> <20190809132850.GL16436@tamriel.snowman.net> <609482826475e0063c7d71b2449ae31c0d61b232.camel@j-davis.com> <071e45a6-97f7-1614-371c-98ecb03aed65@postgresql.org> <7a7a2f07-d013-eb80-85ba-9edaaf845038@2ndquadrant.com> From: "Jonathan S. Katz" Openpgp: preference=signencrypt Autocrypt: addr=jkatz@postgresql.org; keydata= mQINBFtShwABEAC7PNHDUOTYuifpUCk23KqfxdQQkn4nkoxOXRK0+rAj36FiwqGB4TJFuOVZ sDFAEiSlC8Jt4y5Cs7B5tetT8JNd2cs6zp/udMJJDz9d65O9PDpdlMgAmIiTzpLlSdx8FG56 DTksaDv1d8j3cTJPSE4/fWSxqzA7o3Y9UuL7atZPrzfImgpRKs0of7elIHwOa8GucjyhYqcR h60wFBJc2KXqQdDYRTZy43DSnY/0VNc0omiH355fustvpm+m5HjD3w7qZyfN3fpKJpnX1LCF f3MnPHaDGITIYGRCBXvf0UqUtD6OEVWPv2C2gyqWMIpWmZTOgDufltKyIByKBoS9x0PlFkij 04X3KODCngt+N8Ssc9OICc6QSxhjoP48PYPdmiTmkrGuf0LX084wj1xeo1NX7XxZK39F6dTJ DhsIiW0sNS0xMxQHLHG9VLbPjx3SANQBh6BuryPz5ZupW9/TIDmkvprtU/oXfKgtfYm3fxmk EctxbWrEPsFTFPyuMqQu6l+xyQv0s1VLZfjNWaua6H1/gGoIt6kRnn5qMXDVVpijuWkHbv7G ngaQMd258UrrOEHnnjzhQ7jxMWV9D+emxbAtlIxnYvCWlV4IwAQhEHfvudqYaIY3hNWrvQ6H GB2KXoTZYN9g5djm14/5nj1IU5zOcovkjJnKhoo9iStnpFF2cwARAQABtCdKb25hdGhhbiBT LiBLYXR6IDxqa2F0ekBwb3N0Z3Jlc3FsLm9yZz6JAlQEEwEIAD4CGwMFCQeGH4AFCwkIBwIG FQoJCAsCBBYCAwECHgECF4AWIQT6hLaVryv3miBkP/HxBJxynxxlJwUCW1KJJQAKCRDxBJxy nxxlJwjrD/kBgqsW4QpNpTFw7ifRokZV08CCX4huPBJQ91rrv+UEWlEcotFBHVkYyHnpzARl tcZxhJ9CbFxjniH9cOTty5T/O1yolbOHtZSW8Z8aWV6BVEbjMb+BFxSSLm7RnvJdzQbGCZq2 ZZvfVpB6z3EHYph4KDdVKvMFjoLskxmdS1DE0tE3zTxvoQsi24Q+HOS07kUjs6fsu/WICMfz mgO++AWG9Y0CvN0mm4TkujESzyKM9E5irD+leEMIcddl51Aa2c/VMfBXQbRmpHIgUFTmuHQD CnQih+9i3OJAksDg66SP8a7yiXv5mwvyDi1EfTGVKYR2j+pwyjwnC3oIbvDMmB3uTn2JIjnT iZKPVtAcAylXjubFltihQgNyuShdP4W+kBwZizhUFqUVL8Anx+KoytYmJPfMRFLGuK4obXKq a2ZS3k9KB+H+isOx2nFJOsc7V360Zp1DVaNmuiK10TT6QndShSPaqkJqFtCb6r92rZ9sZM/L 3vtCI4Rrl3Pt1MgtENXupS8gZpJnAYS0j5A1PAZ09r6ANoaeMHspF+5J5fOHeEvqphXr36mm a83Vl1t4orPb0+QmmijmlpseDU63M88Aw5p3c4qj7t8Qr2EZ5zrn7/sFn5wOfbs8Nymxafif QCnlV2vg9p0m7vSk/yLJ4PFZvs52FgqAGRCdRn0s2EC99bkCDQRbUocAARAAv8ho/toQ9DG3 j4f9h9n1aRHr2FlviN2Utpy6L8+dfDggO0geilmkGQOolZ2E60gGfye/kUtF9W3NByO4hxDR 9u6qbOXcdqnuA+cc68EfqlWFJrVtYFxt0h4ElWYOYnIezKthriWch/FY70FGrxs3z8UHOHq5 0wBW433eTvZm90WixBiXEt2v1DgW4Vr3ymfO7Aap/IYyPuE4JzgudAuAl0HKPyNEHWHG1dAb jX1RiCw9gknIDWQOF0B4UAaJctWGVcnZ3A2ULwNGMa1P9ZJlBWf1vcj01aiHMU0yQ7JjJiSp vfm9eM0uSLwRdDrJjyl5ZZqVumjdv2SMNQ8GvYRbEMys3GGDSt9zXgfCSUnPnJfYxjzBHRI6 x44Wfsx8S6hWxepOogCJJ/g67Bk9mY8YV4klWIXDJVOL5jnBC09DbsZG81JaE2QxB8Y7W36Z Mroi9XMxg3s805hQAQUvdG/poU8hN8BWdrnTm/+4eQQp7gDY1ePDmGM6bJC+OHOSnFtR/f+7 0zpKJ10cc7cBygGnl1yR3KjhFyAWUFvP4ZGziKCcpMwXZfe9PGuyA/YOubMphxIn3YsK2wrd faKZYX2GMZCZhMMcvx9IpQrxIJgU+VlwXu/O+Lk10VIPcxPJJwmpdI6HzcS8ZgG6IMcC444X XTuLaP8j2mgcMvYak3ScCykAEQEAAYkCPAQYAQgAJhYhBPqEtpWvK/eaIGQ/8fEEnHKfHGUn BQJbUocAAhsMBQkHhh+AAAoJEPEEnHKfHGUnReMP/RA2UhGQj+G4uBshkRLjpRysabdPqgQB dEBk6wYbio88Wg/2/hgY7UzmDDEwX3sZfQDcrI6+vIobI8uqstZID+WgAAa1JLfChMyVQnSy 0zfWMOABXscc5tGuvFRZvJklTissMFjXUwaREEKp4ZikTvJ/62MCjSdtrUhnPLvoTsHTKRKD ichE+b5A54alwsubTijw12O6N22r5IjZiiSZV0u7dsShyKw+7wCSax9fuBoE43NMYf+dnjMK nerAQYUcZWYMnk+EC8RaqYAxv6XZ2tKx1AkGGktwkQIBwrz9IlDSvJ3LWJ2UIIuLRTdngNgg GIL4zzuUa2F56FqskQIuYMaNETk6LYfalBDQ6TVLAcgCPQxp4k4i/PRsZ3lZ2ZhRHRYciOvm kp+I6EfHwllQpYrWs1thluBGqlJSVJgKl0IOFvKLsQ6KKfqzAwh6FxrO5qajp4viNIgtWoFw O5Bp0jgFTbH2OrMWIRfUdUCH1Djbuo65svhNj7FNsQVYzHDI+Nd1I/LOBoPc3UorRMF2M4JV kUR7skOHWUbPTSNUr7qc14NSMY3PKjGeVGAsBVHBPvmRx/Ss2tW/TpJWpxg4pmquFQSXuaYh Yf4FN8Sxy320pcr+FqN8AhZkYJcNY82OTtR5VEKRC/mYcyq61qXIKqngydn79bJjGxHipxyF FmEC Message-ID: <75dff08d-12cd-9e85-97ec-d7db55e224a7@postgresql.org> Date: Sun, 11 Aug 2019 15:46:46 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <7a7a2f07-d013-eb80-85ba-9edaaf845038@2ndquadrant.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="IL49js7JXkciJXHmPHlGEvf3nqEjDZQNs" List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Precedence: bulk This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --IL49js7JXkciJXHmPHlGEvf3nqEjDZQNs Content-Type: multipart/mixed; boundary="EZYrnzTuq7HbPZlNxBRaNf4UKZe725THO"; protected-headers="v1" From: "Jonathan S. Katz" To: Peter Eisentraut , Jeff Davis , Stephen Frost , Michael Paquier Cc: pgsql-hackers@postgresql.org Message-ID: <75dff08d-12cd-9e85-97ec-d7db55e224a7@postgresql.org> Subject: Re: Add "password_protocol" connection parameter to libpq References: <227015d8417f2b4fef03f8966dbfa5cbcc4f44da.camel@j-davis.com> <20190809030021.GG3194@paquier.xyz> <3bbf5968ea705700a2605d6db74d8510bea7940b.camel@j-davis.com> <20190809100922.GI3194@paquier.xyz> <20190809132850.GL16436@tamriel.snowman.net> <609482826475e0063c7d71b2449ae31c0d61b232.camel@j-davis.com> <071e45a6-97f7-1614-371c-98ecb03aed65@postgresql.org> <7a7a2f07-d013-eb80-85ba-9edaaf845038@2ndquadrant.com> In-Reply-To: <7a7a2f07-d013-eb80-85ba-9edaaf845038@2ndquadrant.com> --EZYrnzTuq7HbPZlNxBRaNf4UKZe725THO Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 8/11/19 1:00 PM, Peter Eisentraut wrote: > On 2019-08-09 23:56, Jeff Davis wrote: >> 1. Hierarchical semantics, where you specify the least-secure >> acceptable method: >> >> password_protocol =3D {any,md5,scram-sha-256,scram-sha-256-plus} >=20 > What would the hierarchy be if scram-sha-512 and scram-sha-512-plus are= > added? password_protocol =3D {any,md5,scram-sha-256,scram-sha-512,scram-sha-256-plus,scram-sha-512-plu= s}? I'd put one length of digest over another, but I'd still rank a method that uses channel binding has more protections than one that does not. Jonathan --EZYrnzTuq7HbPZlNxBRaNf4UKZe725THO-- --IL49js7JXkciJXHmPHlGEvf3nqEjDZQNs Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE+oS2la8r95ogZD/x8QSccp8cZScFAl1QcKYACgkQ8QSccp8c ZSf5oRAAtcrWtcHncL4EKQqS9Vc72OPoGj5cua4vOVaIJjA2r18XkPaxjfivXw6m mL6nQUpDYM6tdWlRC2UOwYwGpSwhgPUazE2sYPa9nhwgAals+a0AV/X6afHFN1gZ 2Ycut0kUj6gg/pdztFHrdXLbVuLZ7T1gOGU1YkB8nP9VoHosQjUpYznQVd6eMBKx PjFN3o3INXQzfjrNTw9G7e3fHH6w/HsjvGYS1Ovr9wWZRIQFgzvkaQx36XARqxLo N2ZB1+MiFV26gpFc4/3TAXkwdx+7c1jgHwzFYbWLjNHJ7wOZlcEUtWj8GpvWDSxy c0qpbW00ipQmyNqBq6q8WRwWLbqwfG2yHKU6OAH0MRge6hWaUpk4sgVGbBMoj10o UlCx3pgqZntKw13534FBZwf/FC6b9t3WOZrUQNbfhl4CgHN1SAItxAz2uhkxsfyN zKUo0rk4Vk1NkDw14+UGdfNHVAE5JX/jTmomerfd7AFV/1jDgpalwIXuewg/tJau tZa6tWCSo/D7Trfx9Jb6mUZZssgtWEQxmk94d4qD8F9EMcAPUPLzhwEyOjdUz4xQ S+bo3DbnwjIhWUmFSfChsNlpfvAO1uoRDSXuGaeS0oN71c+BcA4t7ozA3CulQhfM FWLSoP1UwgxTwZnDdH8o2JG2LAa0T+GJdCuAU8zbHfPF3AERkNk= =hKWD -----END PGP SIGNATURE----- --IL49js7JXkciJXHmPHlGEvf3nqEjDZQNs--