Re: [jose] Platform Support for JWA Crypto Algorithms
"Matt Miller (mamille2)" <mamille2@cisco.com> Wed, 31 October 2012 14:41 UTC
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From: "Matt Miller (mamille2)" <mamille2@cisco.com>
To: Axel Nennker <ignisvulpis@gmail.com>
Thread-Topic: [jose] Platform Support for JWA Crypto Algorithms
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Date: Wed, 31 Oct 2012 14:41:31 +0000
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References: <4E1F6AAD24975D4BA5B168042967394366880D09@TK5EX14MBXC285.redmond.corp.microsoft.com> <CE8995AB5D178F44A2154F5C9A97CAF40252198DCF55@HE111541.emea1.cds.t-internal.com> <4E1F6AAD24975D4BA5B16804296739436688123A@TK5EX14MBXC285.redmond.corp.microsoft.com> <CE8995AB5D178F44A2154F5C9A97CAF40252199B9114@HE111541.emea1.cds.t-internal.com> <BF7E36B9C495A6468E8EC573603ED94115076832@xmb-aln-x11.cisco.com> <4E1F6AAD24975D4BA5B16804296739436688296F@TK5EX14MBXC285.redmond.corp.microsoft.com> <BF7E36B9C495A6468E8EC573603ED94115076A6F@xmb-aln-x11.cisco.com> <CAHcDwFyk9DvC18NKzdtb4p0yQW6j4HYbm+KJmkphU965bcVdnw@mail.gmail.com>
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Cc: Mike Jones <Michael.Jones@microsoft.com>, "<public-webcrypto@w3.org>" <public-webcrypto@w3.org>, "<jose@ietf.org>" <jose@ietf.org>, "<Axel.Nennker@telekom.de>" <Axel.Nennker@telekom.de>
Subject: Re: [jose] Platform Support for JWA Crypto Algorithms
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On Oct 31, 2012, at 2:32 AM, Axel Nennker <ignisvulpis@gmail.com> wrote: > I think that https://tools.ietf.org/html/rfc2898 ( > https://en.wikipedia.org/wiki/PBKDF2) is a better choice than the > concat-kdf from NIST. > PBKDF2 does not care whether the password consists of printable characters > or whether it is a randomly generated byte strink like our CMK. > There is no need to base64url the key/cmk. > > In the wikipedia article is a list of implementations which sounds much > better than our current rows in our crypto-algs compat-table. I only suggested base64 encoding the key as a way to get past the perceptions around the word "password". While RFC 2898 does say: Throughout this document, a password is considered to be an octet string of arbitrary length whose interpretation as a text string is unspecified. In the interest of interoperability, however, it is recommended that applications follow some common text encoding rules. ASCII and UTF-8 [27] are two possibilities. (ASCII is a subset of UTF-8.) All of the implementations I've used or looked at have interpreted "password" to simply be an octet string (as per the rest of RFC 2898). - m&m Matt Miller < mamille2@cisco.com > Cisco Systems, Inc.
- [jose] Platform Support for JWA Crypto Algorithms Mike Jones
- Re: [jose] Platform Support for JWA Crypto Algori… Axel.Nennker
- Re: [jose] Platform Support for JWA Crypto Algori… Mike Jones
- Re: [jose] Platform Support for JWA Crypto Algori… Axel.Nennker
- Re: [jose] Platform Support for JWA Crypto Algori… Matt Miller (mamille2)
- Re: [jose] Platform Support for JWA Crypto Algori… Mike Jones
- Re: [jose] Platform Support for JWA Crypto Algori… Axel Nennker
- [jose] NIST Concat KDF Manger, James H
- Re: [jose] Platform Support for JWA Crypto Algori… Matt Miller (mamille2)
- Re: [jose] Platform Support for JWA Crypto Algori… Axel Nennker
- Re: [jose] Platform Support for JWA Crypto Algori… Matt Miller (mamille2)
- Re: [jose] Platform Support for JWA Crypto Algori… Wan-Teh Chang
- Re: [jose] Platform Support for JWA Crypto Algori… Axel Nennker
- Re: [jose] Platform Support for JWA Crypto Algori… Mike Jones
- Re: [jose] NIST Concat KDF Manger, James H
- Re: [jose] NIST Concat KDF Richard L. Barnes
- Re: [jose] NIST Concat KDF Michael Jones
- Re: [jose] NIST Concat KDF Manger, James H
- Re: [jose] NIST Concat KDF Michael Jones
- Re: [jose] NIST Concat KDF Richard L. Barnes