Third-party notice - Stanford Javascript Crypto Library (SJCL)

Six source files of @awacloud/fw are adapted from the Stanford Javascript
Crypto Library (SJCL):

  src/crypto/cipher/aes.js (T-table precomputation, key schedule, T-table
    block path)
  src/crypto/hash/sha256.js
  src/crypto/hash/sha512.js
  src/crypto/pkc/ecc.js (point arithmetic, curve registry, key / ECDSA
    scaffolding)
  src/crypto/utils/bitArray.js
  src/crypto/utils/bn.js

SJCL is distributed under BSD-2-Clause OR GPL-2.0-or-later. AwaCloud SAS
uses it under BSD-2-Clause, whose copyright notice and licence text are
reproduced below verbatim from the upstream repository
(https://github.com/bitwiseshiftleft/sjcl, file LICENSE.txt, BSD section),
as that licence requires.
Origin details per file: docs/dev/provenance.md.

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