3472fa3f27
+ Added aescbc (symmetric/scalable) license support + Added license integrity verification using CI + Added matching of group key and certificate chain during provisioning + Removed wrm header downgrading
42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
from construct import Struct, Const, Int8ub, Bytes, this, Int32ub, Switch, Embedded
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class DeviceStructs:
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magic = Const(b"PRD")
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# was never in production
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v1 = Struct(
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"group_key_length" / Int32ub,
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"group_key" / Bytes(this.group_key_length),
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"group_certificate_length" / Int32ub,
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"group_certificate" / Bytes(this.group_certificate_length)
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)
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v2 = Struct(
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"group_certificate_length" / Int32ub,
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"group_certificate" / Bytes(this.group_certificate_length),
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"encryption_key" / Bytes(96),
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"signing_key" / Bytes(96),
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)
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v3 = Struct(
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"group_key" / Bytes(96),
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"encryption_key" / Bytes(96),
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"signing_key" / Bytes(96),
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"group_certificate_length" / Int32ub,
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"group_certificate" / Bytes(this.group_certificate_length),
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)
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prd = Struct(
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"signature" / magic,
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"version" / Int8ub,
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Embedded(Switch(
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lambda ctx: ctx.version,
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{
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1: v1,
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2: v2,
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3: v3
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}
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))
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)
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