Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-17 Thread Clint Wilson via Servercert-wg
Hi Pedro, All CAs in the Apple Root Program are required to complete an audit based on either WebTrust Principles and Criteria for Certification Authorities or ETSI EN 319 411-1 LCP, NCP, or NCP+ per Section 1.1.1 of the ARP Policy. For clientAuth-only CAs, these are currently the only audit cr

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-17 Thread Pedro FUENTES via Servercert-wg
I also oversaw that… Anyhow… @Clint, what are the audit requirements for these clientAuth CAs? In your program you mention WTBR as a requirement for "TLS CAs”, but there’s no distinction between clientAuth or serverAuth… while both are used to secure TLS handshakes. > On 17 May 2024, at 11:22,

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-17 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 16/5/2024 10:29 μ.μ., Clint Wilson wrote: AFAIK Apple and Mozilla also don't have a specific "trust bit" for Client Authentication. Only Microsoft does. FWIW, Apple does indeed have a specific trust bit for id-kp-clientAuth EKU and allows for (and ships) dedicated clientAuth Root CAs in t

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-17 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 16/5/2024 10:20 μ.μ., Clint Wilson wrote: On May 16, 2024, at 1:19 AM, Dimitris Zacharopoulos (HARICA) wrote: [...] Regardless of the conclusion to the questions you posed, I’m failing to see why we would want any other outcome than to have subCAs which issue TBR-compliant TLS ce

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Clint Wilson via Servercert-wg
> AFAIK Apple and Mozilla also don't have a specific "trust bit" for Client > Authentication. Only Microsoft does. FWIW, Apple does indeed have a specific trust bit for id-kp-clientAuth EKU and allows for (and ships) dedicated clientAuth Root CAs in the Apple Root Program (as outlined in 2.1.3

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Clint Wilson via Servercert-wg
> On May 16, 2024, at 1:19 AM, Dimitris Zacharopoulos (HARICA) > wrote: > > > > On 15/5/2024 11:07 μ.μ., Clint Wilson wrote: >> Hi Dimitris, >> >> I guess I’m confused about how this is relevant to the scope of the CA/BF as >> it seems quite orthogonal to the questions you posed initially.

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Pedro FUENTES via Servercert-wg
Hey Ryan, Please note that I sent a correction saying that… Where I said “you can’t propose clientAuth-only certs that work in Chrome” I wanted to say “you can’t propose clientAuth-only certs that chain to Chrome Store” Now, about your question, I don’t think that there’s a use case where the br

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Ryan Dickson via Servercert-wg
Hi Pedro, Sharing our perspective below: > I don’t know if you didn’t mention Chrome for a particular reason, but actually that’s the Root program that makes me scratch my head while reading these discussions… because AFAIK they only include Roots for TLS serverAuth purposes, and not for clientAu

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 16/5/2024 3:21 μ.μ., Dimitris Zacharopoulos (HARICA) via Servercert-wg wrote: I don’t know if you didn’t mention Chrome for a particular reason, No particular reason. It's just a relatively new Root Program compared to others and I haven't bumped into a public tender that requires it :)

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 16/5/2024 12:20 μ.μ., Pedro FUENTES wrote: Hello Dimitris, I’m following closely this as I find very important. About… This is easy to answer. Some use cases need single-purpose client authentication certificates. There are numerous use cases where client authentication certificates are u

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Pedro FUENTES via Servercert-wg
Sorry, small correction… Where I said “you can’t propose clientAuth-only certs that work in Chrome” I wanted to say “you can’t propose clientAuth-only certs that chain to Chrome Store” P > On 16 May 2024, at 11:20, Pedro FUENTES via Servercert-wg > wrote: > > Hello Dimitris, > I’m following

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Pedro FUENTES via Servercert-wg
Hello Dimitris, I’m following closely this as I find very important. About… > This is easy to answer. Some use cases need single-purpose client > authentication certificates. There are numerous use cases where client > authentication certificates are used for strong authentication, I'm sure you

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-16 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 15/5/2024 11:07 μ.μ., Clint Wilson wrote: Hi Dimitris, I guess I’m confused about how this is relevant to the scope of the CA/BF as it seems quite orthogonal to the questions you posed initially. Regardless of how clients check certificates, the question is about the issuance of a certif

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-15 Thread Clint Wilson via Servercert-wg
Hi Dimitris, I guess I’m confused about how this is relevant to the scope of the CA/BF as it seems quite orthogonal to the questions you posed initially. Regardless of how clients check certificates, the question is about the issuance of a certificate. As a side-note, the question that comes to

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-15 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 15/5/2024 7:27 μ.μ., Clint Wilson wrote: Apologies if I’m replying to the wrong thread, but I wanted to comment on one point here. On May 14, 2024, at 8:54 AM, Dimitris Zacharopoulos (HARICA) via Servercert-wg wrote: On 14/5/2024 1:27 μ.μ., Adriano Santoni via Servercert-wg wrote:

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-15 Thread Clint Wilson via Servercert-wg
Apologies if I’m replying to the wrong thread, but I wanted to comment on one point here. > On May 14, 2024, at 8:54 AM, Dimitris Zacharopoulos (HARICA) via > Servercert-wg wrote: > > > > On 14/5/2024 1:27 μ.μ., Adriano Santoni via Servercert-wg wrote: >> I would agree to consider out-of-sco

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-14 Thread Dimitris Zacharopoulos (HARICA) via Servercert-wg
On 14/5/2024 1:27 μ.μ., Adriano Santoni via Servercert-wg wrote: I would agree to consider out-of-scope (of the BRs) a leaf certificate with EKU=clientAuth issued by a SubCA that has EKU={server,client}, provided of course the leaf certificate does not assert a BR TLS policy OID because thi

Re: [Servercert-wg] [External Sender] Discussion about single-purpose client authentication leaf certificates issued from a server TLS Issuing CA

2024-05-14 Thread Adriano Santoni via Servercert-wg
I would agree to consider out-of-scope (of the BRs) a leaf certificate with EKU=clientAuth issued by a SubCA that has EKU={server,client}, provided of course the leaf certificate does not assert a BR TLS policy OID because this would be contradictory. Besides, at least one widely used linter c