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blue-loader-python
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Enforce certificate chain properly

This commit is contained in:
BTChip 2016-07-28 09:45:04 +02:00
parent 9032981381
commit f51eff7d96
1 changed files with 8 additions and 0 deletions
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8
ledgerblue/deployed.py
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@ -94,6 +94,14 @@ def getDeployedSecretV2(dongle, masterPrivate, targetid):
#if cardKey <> testMasterPublic:
# raise Exception("Invalid batch public key")
print "Using test master key " + str(testMasterPublic).encode('hex')
dataToSign = bytes(bytearray([0x01]) + testMasterPublic)
signature = testMaster.ecdsa_sign(bytes(dataToSign))
signature = testMaster.ecdsa_serialize(signature)
certificate = bytearray([len(testMasterPublic)]) + testMasterPublic + bytearray([len(signature)]) + signature
apdu = bytearray([0xE0, 0x51, 0x00, 0x00]) + bytearray([len(certificate)]) + certificate
dongle.exchange(apdu)
# provide the ephemeral certificate
ephemeralPrivate = PrivateKey()
ephemeralPublic = bytearray(ephemeralPrivate.pubkey.serialize(compressed=False))