Re: [Acme] Entropy requirement for challenge token

2017-03-29 Thread Daniel McCarney
>> Is this accurate? If so, it seems like some version of this explanation >> should be included in the Security Considerations section. >> >> -- >> *From:* Daniel McCarney >> *Sent:* Wednesday, March 22, 2017 10:30 AM >> *To:*

Re: [Acme] Entropy requirement for challenge token

2017-03-28 Thread Daniel McCarney
rate? If so, it seems like some version of this explanation > should be included in the Security Considerations section. > > -- > *From:* Daniel McCarney > *Sent:* Wednesday, March 22, 2017 10:30 AM > *To:* Zach Shepherd > *Cc:* acme@ietf.org &g

Re: [Acme] Entropy requirement for challenge token

2017-03-23 Thread Jacob Hoffman-Andrews
-- > *From:* Daniel McCarney > *Sent:* Wednesday, March 22, 2017 10:30 AM > *To:* Zach Shepherd > *Cc:* acme@ietf.org > *Subject:* Re: [Acme] Entropy requirement for challenge token > > Hi Zach, > > > This

Re: [Acme] Entropy requirement for challenge token

2017-03-23 Thread Zach Shepherd
rney Sent: Wednesday, March 22, 2017 10:30 AM To: Zach Shepherd Cc: acme@ietf.org Subject: Re: [Acme] Entropy requirement for challenge token Hi Zach, > This seems incongruous. If the token must be kept secret an attacker, it > should not be served via an unauthenticated channel. I agree the

Re: [Acme] Entropy requirement for challenge token

2017-03-22 Thread Daniel McCarney
Hi Zach, > This seems incongruous. If the token must be kept secret an attacker, it > should not be served via an unauthenticated channel. I agree the wording makes it incongruous, I was caught up on this the other week until it was clarified for me by Jacob. The token is random not to prevent

[Acme] Entropy requirement for challenge token

2017-03-21 Thread Zach Shepherd
The following feedback is based on 8010a31 (current HEAD of master). Section 6.2, Request Authentication, states "Note that authentication via signed JWS request bodies implies that GET requests are not authenticated. Servers MUST NOT respond to GET requests for resources that might be considere