[OpenID] Bug in OpenID RP implementations

Martin Atkins mart at degeneration.co.uk
Fri Jan 2 01:49:37 UTC 2009


Eric Norman wrote:
> On Jan 1, 2009, at 6:40 PM, Martin Atkins wrote:
> 
>> OpenID really needs a way to migrate from one identifier to another
>> without breaking the connection to existing accounts.
> 
> If RPs do indeed include the "http(s)://" as part of their
> account identifiers, then yep, there's a migration problem.
> 
> In any case, I suggest that y'all rethink the notion that
> URLs that only differ by that "s" can represent different
> entities.  I note that the above statement about what
> OpenID needs makes an implicit assumption that such URLs
> would represent the same entity.
> 

Two URLs that differ only in that the scheme is https vs. http *must* be 
considered to be different, otherwise any security benefits offered by 
using https are rendered ineffective. (You could just compromise the 
non-SSL version, ignoring the SSL version.)




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