[cap-talk] Wikipedia: Object-capability model - reference vs. capability?

Bill Frantz frantz at pwpconsult.com
Wed Jan 17 16:46:22 CST 2007


erights at gmail.com (Mark Miller) on Wednesday, January 17, 2007 wrote:

>In KeyKOS, my understanding is that two independently created number
>keys representing the number 7 cannot be distinguished. Number keys
>are compared only on their contents, not on whether they were created
>by the same act of creation. Is this correct?

The manual is not clear on this issue, but the only handle the kernel
has on "sameness" for data keys is the bits in the key.  If DISCRIM is
to return true for some data key comparisons and false for others, then
it has no choice but to compare the bits of the keys.

Cheers - Bill

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