Unlock reduce sc events #1622
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Unlock reduce sc events #1622
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benma
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Every call to `keystore::unlock` is followed by `copy_seed()`. The latter uses a secure chip operation. We can remove that by returning the seed from unlock and re-using it. This reduces the number of securechip operations by 1 when: - when unlocking the device - showing mnemonic on initialized device - creating backu on initialized device This is to reduce the risk of running into Optiga's throttling security mechanism.
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Builds on #1619