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  3. YubiHSM2
  4. Commands
  5. Unwrap Data

    UNWRAP DATA

    Decrypt data.

    Description

    Decrypt (unwrap) data using a Wrap Key.

    Shell Example

    yubihsm> decrypt aesccm 0 0x5b3a MRkj6B0AAAAAAAAAAoO4dkIeAYoPvwTV/M/JX1dwKnLqnERO1hSW4wPS
Hello world!

    Protocol Details

    Command

    Tc = 0x69

    Lc = 2 + 13 + LD + 16

    Vc = I || N || D || M

    I := Object ID of a Wrap Key (2 bytes)

    N := Nonce (13 bytes)

    D := Data to be unwrapped

    M := Mac (16 bytes)

    Response

    Tr = 0xe9

    Lr = LD

    Vr = D

    D := Unwrapped data