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On 08/20/2018 10:18 PM, Alec Warner wrote: |
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> Are there other ways to measure if the keys are used in the manner we are |
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> hoping for? |
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Nope... additional complexity arise if multiple signing keys exists |
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(primary or subkeys), and furthermore there is no guarantee the key is |
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stored on key only. |
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That said, the actual security is even further muddied by operational |
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security concerns regarding how the primary key is accessed even in the |
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event signing subkey is on card only.. and other security precations |
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required by the developers for the token to have any meaningful addition |
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to security as an attacker can anyways just wait for it to be be |
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available, in particular if not mandating forcesig on the openpgp applet |
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and counting the number of signatures manually to detect abnormalities. |
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I really would like to see a properly written up memorandum on the |
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threat model this suggestion is intended to protect against and the |
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cost/benefit analysis involved in the decision making; to me it sounds |
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like some people think it is a panacea without much actual considerations. |
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-- |
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Kristian Fiskerstrand |
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OpenPGP keyblock reachable at hkp://pool.sks-keyservers.net |
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fpr:94CB AFDD 3034 5109 5618 35AA 0B7F 8B60 E3ED FAE3 |
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