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Merge pull request #7331 from mprse/ec-jpake-fix2

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PSA PAKE: Check input_length against PSA_PAKE_INPUT_SIZE() in psa_pake_input
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Paul Elliott 2023-04-17 16:31:09 +01:00 • committed by GitHub
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5 changed files with 28 additions and 4 deletions
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docs/proposed/psa-driver-interface.md
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@ -474,7 +474,8 @@ For `PSA_ALG_JPAKE` the following steps are available for input operation:
* `PSA_JPAKE_X4S_STEP_ZK_PUBLIC`    Round 2: input Schnorr NIZKP public key for the X4S key
* `PSA_JPAKE_X4S_STEP_ZK_PROOF`     Round 2: input Schnorr NIZKP proof for the X4S key
The core checks that input_length is smaller than PSA_PAKE_INPUT_MAX_SIZE.
The core checks that `input_length` is not greater than `PSA_PAKE_INPUT_SIZE(alg, prim, step)` and
the driver can rely on that.
### PAKE driver get implicit key