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Fix CDDL for signatures.

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The signature is not CBOR-encoded, it's the raw bytes of the signature
encoded as specified for the specific algorithm.

I've made the references to PureEd25519() / ECDSA() into comments,
since I believe they're not actually legal CDDL but are aimed at
humans. And I've made the two occurrences consistent with each other.

Test: N/A
Change-Id: Ia42362ff3d0ce5458322663256cbd34d258afe76
This commit is contained in:
Alan Stokes
2022-03-22 15:23:13 +00:00
parent 1b51643add
commit ba9f55ee69
1 changed files with 4 additions and 4 deletions
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8
security/keymint/aidl/android/hardware/security/keymint/ProtectedData.aidl
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@@ -92,8 +92,8 @@ parcelable ProtectedData {
* },
* {}, // Unprotected params
* bstr .size 32, // MAC key
* bstr PureEd25519(KM_priv, .cbor SignedMac_structure) /
* ECDSA(KM_priv, bstr .cbor SignedMac_structure)
* bstr // PureEd25519(KM_priv, bstr .cbor SignedMac_structure) /
* // ECDSA(KM_priv, bstr .cbor SignedMac_structure)
* ]
*
* SignedMac_structure = [
@@ -144,8 +144,8 @@ parcelable ProtectedData {
* },
* unprotected: {},
* payload: bstr .cbor BccPayload,
* signature: bstr .cbor PureEd25519(SigningKey, bstr .cbor BccEntryInput) /
* bstr .cbor ECDSA(SigningKey, bstr .cbor BccEntryInput)
* signature: bstr // PureEd25519(SigningKey, bstr .cbor BccEntryInput) /
* // ECDSA(SigningKey, bstr .cbor BccEntryInput)
* // See RFC 8032 for details of how to encode the signature value for Ed25519.
* ]
*