INNER CODE UNIT · Java

appVersion

GrapheneOS/AttestationServer · src/main/java/app/attestation/server/AttestationProtocol.java:527

        final int appVersion = Math.toIntExact(info.version); // int for compatibility
        if (appVersion < AUDITOR_APP_MINIMUM_VERSION) {
            throw new GeneralSecurityException("Auditor app is too old: " + appVersion);
        }

        final AuthorizationList teeEnforced = attestation.teeEnforced;

        // verified boot security checks
        final RootOfTrust rootOfTrust = teeEnforced.rootOfTrust.orElse(null);
        if (rootOfTrust == null) {
            throw new GeneralSecurityException("missing root of trust");
        }
        if (!rootOfTrust.deviceLocked) {
            throw new GeneralSecurityException("device is not locked");
        }
        final RootOfTrust.VerifiedBootState verifiedBootState = rootOfTrust.verifiedBootState;
        final String verifiedBootKey = BaseEncoding.base16().encode(rootOfTrust.verifiedBootKey);
        final DeviceInfo device;

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