LZMA SDK License (versions 9.11 to 9.20)

LZMA-SDK-9.11-to-9.20

LICENSE
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LZMA SDK is written and placed in the public domain by Igor Pavlov.

Some code in LZMA is based on public domain code from another developers:
  1) PPMd var.H (2001): Dmitry Shkarin
  2) SHA-256: Wei Dai (Crypto++ library)