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Specify KeyMint EC keys by curve not size

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Future addition of extra curves means that key size is not enough to
identify the particular EC curve required. Use the EcCurve enum instead.

Test: VtsHalRemotelyProvisionedComponentTargetTest
Change-Id: Ia6b7d86a387cfc06db05e4ba6ff8f331e9c6345f
This commit is contained in:
David Drysdale
2021-10-14 15:17:36 +01:00
parent 0531c94771
commit 915ce253a8
3 changed files with 1 additions and 7 deletions
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2
security/keymint/aidl/vts/functional/VtsRemotelyProvisionedComponentTests.cpp
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@@ -222,7 +222,7 @@ TEST_P(GenerateKeyTests, generateAndUseEcdsaP256Key_prodMode) {
// Generate an ECDSA key that is attested by the generated P256 keypair.
AuthorizationSet keyDesc = AuthorizationSetBuilder()
.Authorization(TAG_NO_AUTH_REQUIRED)
.EcdsaSigningKey(256)
.EcdsaSigningKey(EcCurve::P_256)
.AttestationChallenge("foo")
.AttestationApplicationId("bar")
.Digest(Digest::NONE)

5
security/keymint/support/authorization_set.cpp
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@@ -161,11 +161,6 @@ AuthorizationSetBuilder& AuthorizationSetBuilder::RsaEncryptionKey(uint32_t key_
return EncryptionKey();
}
AuthorizationSetBuilder& AuthorizationSetBuilder::EcdsaSigningKey(uint32_t key_size) {
EcdsaKey(key_size);
return SigningKey();
}
AuthorizationSetBuilder& AuthorizationSetBuilder::EcdsaSigningKey(EcCurve curve) {
EcdsaKey(curve);
return SigningKey();

1
security/keymint/support/include/keymint_support/authorization_set.h
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@@ -281,7 +281,6 @@ class AuthorizationSetBuilder : public AuthorizationSet {
AuthorizationSetBuilder& RsaSigningKey(uint32_t key_size, uint64_t public_exponent);
AuthorizationSetBuilder& RsaEncryptionKey(uint32_t key_size, uint64_t public_exponent);
AuthorizationSetBuilder& EcdsaSigningKey(uint32_t key_size);
AuthorizationSetBuilder& EcdsaSigningKey(EcCurve curve);
AuthorizationSetBuilder& AesEncryptionKey(uint32_t key_size);
AuthorizationSetBuilder& TripleDesEncryptionKey(uint32_t key_size);