Passkeys are just sparkling TLS client certs

[faoluin@chitter.xyz]

@xssfox With landlords

[yaakov@cloudisland.nz]

@xssfox I thought sparkling Smart Cards

[rileywd@mastodon.social]

@xssfox worse, since their cryptographic auth is one-time, exchanged for a long-lived stealable cookie

[avincentinspace@furry.engineer]

@xssfox shutup shut up SHUT UP SHUT

/lh

[xssfox@cloudisland.nz]

I love how this annoys or clicks with people in different ways

[hellbeast@pleroma.envs.net]

@xssfox at least there's no PKI attached to them (I THINK?????????)

[ei3jdb@mastodon.radio]

@jpm @xssfox Lotus Notes is usable? That's not what I remember

[erikvanstraten@todon.nl]

@xssfox : no they're not.

IIRC client certs are bound to the TLS channel, while passkeys are bound to the domain name.

Passkeys do not protect against DNS domain takeovers or BGP hijacks (where a malicious website hijacks the domain name and obtains a valid https website certificate).

OTOH if your browser has a TLS connection to a MitM proxy such as Cloudflare or Fastly, you're dead in the water anyway.

#TLS #MitM #AitM #Passkeys

[isithran@social.lkw.tf]

@yaakov @xssfox this, with the notable limitation that private keys are now device bound

[yaakov@cloudisland.nz]

@isithran @xssfox not quite, they can be synced^ and transferred*