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feat(Keys_Viewing): Compute ciphertext header #5867

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Tracked by #5606
LHerskind opened this issue Apr 19, 2024 · 0 comments · Fixed by #6175
Closed
Tracked by #5606

feat(Keys_Viewing): Compute ciphertext header #5867

LHerskind opened this issue Apr 19, 2024 · 0 comments · Fixed by #6175
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LHerskind commented Apr 19, 2024 •
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For AES in noir: preferably use #5866, otherwise use #5895 if required.

Implementation in noir.

From #5896 should be functionality to compute the symmetric key.

We need to compute the ciphertext header, which currently seems to just be the contract_address for the note.

As with many of the others, better description is in the diagam linked at the main issue.

As the flows for both incoming and outgoing is the same, simply with different pub keys, it seems fine to just have one function implementation.

image
This was referenced Apr 19, 2024
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@LHerskind LHerskind assigned LHerskind and unassigned nventuro May 3, 2024
@LHerskind LHerskind mentioned this issue May 3, 2024
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LHerskind added a commit that referenced this issue May 7, 2024
@LHerskind
feat: add ciphertext computation for log header (#6175)
3e05534 
Fixes #5867 with the AES oracle on the noir side and a encrypt/decrypt
tool on the typescript side as well.

Changes the symmetric key derivation to use `GrumpkinPrivateKey` instead
of the `GrumpkinScalar`, this changes the order of low/high.
This was referenced May 8, 2024
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feat: add ciphertext computation for log header AztecProtocol/aztec-packages
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