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Add new Apple Managed Device Attestation OIDs #1496

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5fc1d91
Add new Apple Managed Device Attestation OIDs
hslatman Jul 31, 2023
9b12867
Merge branch 'master' into herman/acme-macos-properties
hslatman Nov 27, 2023
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48 changes: 38 additions & 10 deletions acme/challenge.go
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Original file line number Diff line number Diff line change
Expand Up @@ -819,19 +819,33 @@ ZwFEh9bhKjJ+5VQ9/Do1os0u3LEkgN/r
-----END CERTIFICATE-----`

var (
oidAppleSerialNumber = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 1}
oidAppleUniqueDeviceIdentifier = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 2}
oidAppleSecureEnclaveProcessorOSVersion = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 10, 2}
oidAppleNonce = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 11, 1}
oidAppleSerialNumber = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 1}
oidAppleUniqueDeviceIdentifier = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 2}
oidAppleSecureEnclaveEnrollmentIdentifier = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 3}
oidAppleSoftwareUpdateDeviceIdentifier = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 9, 4}
oidAppleOperatingSystemVersion = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 10, 1}
oidAppleSecureEnclaveProcessorOSVersion = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 10, 2}
oidAppleLowLevelBootloaderVersion = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 10, 3}
oidAppleNonce = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 11, 1}
oidAppleSIPStatus = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 13, 1}
oidAppleSecureBootStatus = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 13, 2}
oidAppleThirdPartyKernelExtensionsAllowed = asn1.ObjectIdentifier{1, 2, 840, 113635, 100, 8, 13, 3}
)

type appleAttestationData struct {
Nonce []byte
SerialNumber string
UDID string
SEPVersion string
Certificate *x509.Certificate
Fingerprint string
Nonce []byte
SerialNumber string
UDID string
OSVersion string
SEPVersion string
LLBVersion string
SecureEnclaveEnrollmentID string
SoftwareUpdateDeviceID string
SIPStatus string
SecureBootStatus string
ThirdPartyKernelExtensionsAllowed string // TODO(hs): check if this can/should be bool instead
Certificate *x509.Certificate
Fingerprint string
}

func doAppleAttestationFormat(_ context.Context, prov Provisioner, _ *Challenge, att *attestationObject) (*appleAttestationData, error) {
Expand Down Expand Up @@ -901,6 +915,20 @@ func doAppleAttestationFormat(_ context.Context, prov Provisioner, _ *Challenge,
data.SEPVersion = string(ext.Value)
case ext.Id.Equal(oidAppleNonce):
data.Nonce = ext.Value
case ext.Id.Equal(oidAppleOperatingSystemVersion):
data.OSVersion = string(ext.Value)
case ext.Id.Equal(oidAppleLowLevelBootloaderVersion):
data.LLBVersion = string(ext.Value)
case ext.Id.Equal(oidAppleSecureEnclaveEnrollmentIdentifier):
data.SecureEnclaveEnrollmentID = string(ext.Value)
case ext.Id.Equal(oidAppleSoftwareUpdateDeviceIdentifier):
data.SoftwareUpdateDeviceID = string(ext.Value)
case ext.Id.Equal(oidAppleSIPStatus):
data.SIPStatus = string(ext.Value)
case ext.Id.Equal(oidAppleSecureBootStatus):
data.SecureBootStatus = string(ext.Value)
case ext.Id.Equal(oidAppleThirdPartyKernelExtensionsAllowed):
data.ThirdPartyKernelExtensionsAllowed = string(ext.Value)
}
}

Expand Down