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michael cedefef70e test(applet): pin deriveStepUpSessionKeys to spec ASCII info strings

Adds a second regression test for AliroCrypto.deriveStepUpSessionKeys
that hard-codes the exact RFC 5869 reference computation (empty salt,
"SKDevice" / "SKReader" ASCII info) with a different IKM byte pattern
and independent expand-once helper. Complements the existing
deriveStepUpSessionKeysMatchesManualHkdf so a future spec misread in
shared helper code can't slip through.

Implementation itself was landed earlier in f94e416 ("fix: AUTH1 crypto
interop with stock X-CUBE-ALIRO + EXCHANGE compat stub"); this is the
M1A.1 task's tightened pin from the Step-Up v2 plan.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

2026-06-11 10:23:44 -07:00

applet

test(applet): pin deriveStepUpSessionKeys to spec ASCII info strings

2026-06-11 10:23:44 -07:00

docs/plans

docs: Step-Up implementation plans v1+v2 + inline TODOs at four opt sites

2026-06-11 10:19:05 -07:00

harness

fix: AUTH1 crypto interop with stock X-CUBE-ALIRO + EXCHANGE compat stub

2026-06-11 10:18:42 -07:00

reader

build(reader): WTX cap bump 20→255 + AUTH1 wrap instrumentation