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From: Doctor Who <doc@tardis.org>
Subject: Re: The Ravenscar profile and capabilities paradigm
Date: Tue, 12 Oct 2021 04:35:14 +0200	[thread overview]
Message-ID: <81t9mghvbd1tmjjfuku559mhgq9qi3m8rg@4ax.com> (raw)
In-Reply-To: <1ls9mg5g8klqjqbclgb10dhj3gpvotj0h4@4ax.com>

On Tue, 12 Oct 2021 04:29:42 +0200, Doctor Who <doc@tardis.org> wrote:

>On Tue, 12 Oct 2021 01:45:40 +0100, "Luke A. Guest"
><laguest@archeia.com> wrote:
>
>>On 11/10/2021 20:50, Doctor Who wrote:
>>> On Mon, 11 Oct 2021 20:36:46 +0100, "Luke A. Guest"
>>> <laguest@archeia.com> wrote:
>>> 
>>>> On 11/10/2021 20:25, Doctor Who wrote:
>>>>> On Mon, 11 Oct 2021 15:48:37 +0100, "Luke A. Guest"
>>>>> <laguest@archeia.com> wrote:
>>>>>
>>>>>> On 11/10/2021 14:33, Doctor Who wrote:
>>>>>>> Hello,
>>>>>>> someone knows how to introduce the capabilities paradigm in Ada,
>>>>>>> specifically for programs written using the Ravenscar profile ?
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> Capabilities are just a set of operations that an object / user can
>>>>>> perform, or not. So, it's merely a bitset. A bitset which can form
>>>>>> derived bitsets.
>>>>>>
>>>>>
>>>>> no it is another thing,
>>>>> https://en.wikipedia.org/wiki/Capability-based_security
>>>>>
>>>>
>>>> I know what it is. It is still a set of bits, or, permissions, or
>>>> capabilities. The capabilities are usually provided by the OS services.
>>>>
>>>> But as you didn't specify whether you wanted to map onto an existing OS'
>>>> capabilities or if you wanted to implement your own, I went with the latter.
>>> 
>>> there isn't any existing OS that provides capability-security from the
>>> ground up, I intend to implement my own.
>>> 
>>
>>CapOS/KeyOS don't exist then?
>>
>>Windows has capabilities.
>>
>>Pretty sure iOS has them too.
>
>
>only CapROS at the moment, KeyKOS only survives as an ancestor
>reference to CapROS and Coyotos.
>
>But Coyotos development has been sleeping for years now, and CapROS is
>starting to revive only now.
>
>But yes, I would chose CapROS now.


I have participated to the development of Coyotos since 2000 until it
completely stopped in 2013.

  reply	other threads:[~2021-10-12  2:35 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-11 13:33 Doctor Who
2021-10-11 14:48 ` Luke A. Guest
2021-10-11 19:25   ` Doctor Who
2021-10-11 19:36     ` Luke A. Guest
2021-10-11 19:50       ` Doctor Who
2021-10-12  0:45         ` Luke A. Guest
2021-10-12  0:47           ` Luke A. Guest
2021-10-12  2:31             ` Doctor Who
2021-10-12  2:29           ` Doctor Who
2021-10-12  2:35             ` Doctor Who [this message]
2021-10-12  3:19             ` Doctor Who
2021-10-12  5:17         ` Richard Iswara
2021-10-12  6:42           ` Doctor Who
2021-10-12 11:51             ` Richard Iswara
2021-10-12 11:58               ` Luke A. Guest
2021-10-12 15:04                 ` Doctor Who
2021-10-11 15:32 ` Simon Wright
2021-10-11 19:24   ` Doctor Who
2021-10-12 15:01     ` Shark8
2021-10-12 15:02       ` Luke A. Guest
2021-10-12 15:33         ` Shark8
2021-10-12 15:43           ` Luke A. Guest
2021-10-12 18:21             ` Doctor Who
2021-10-12 18:24               ` Doctor Who
2021-10-14  3:46       ` Doctor Who
2021-10-14 15:16         ` Shark8
2021-10-14 16:38           ` Doctor Who
2021-10-14 21:20             ` Simon Wright
2021-10-15 11:21               ` Doctor Who
2021-10-11 15:48 ` Shark8
2021-10-11 19:25   ` Doctor Who
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