fizz::Exporter Class Reference

#include <Exporter.h>

Static Public Member Functions
static Buf	getEkm (CipherSuite cipher, folly::ByteRange exporterMaster, folly::StringPiece label, Buf context, uint16_t length)

Detailed Description

Definition at line 16 of file Exporter.h.

Member Function Documentation

Buf fizz::Exporter::getEkm ( CipherSuite  cipher, folly::ByteRange  exporterMaster, folly::StringPiece  label, Buf  context, uint16_t  length  )

static

Definition at line 13 of file Exporter.cpp.

References folly::IOBuf::create(), folly::Range< Iter >::hash(), fizz::Factory::makeKeyDeriver(), folly::range(), secret, and folly::IOBuf::wrapBuffer().

Referenced by fizz::server::FizzServer< ActionMoveVisitor, SM >::getEarlyEkm(), fizz::client::FizzClient< ActionMoveVisitor, SM >::getEarlyEkm(), and fizz::FizzBase< Derived, ActionMoveVisitor, StateMachine >::getEkm().

                     {
  if (!context) {
    context = folly::IOBuf::create(0);
  }
  auto deriver = Factory().makeKeyDeriver(cipher);
  std::vector<uint8_t> base(deriver->hashLength());
  folly::MutableByteRange hashedContext(base.data(), base.size());
  deriver->hash(*context, hashedContext);
  auto secret =
      deriver->deriveSecret(exporterMaster, label, deriver->blankHash());
  return deriver->expandLabel(
      folly::range(secret),
      "exporter",
      folly::IOBuf::wrapBuffer(hashedContext),
      length);
}

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The documentation for this class was generated from the following files:

• proxygen/fizz/fizz/protocol/Exporter.h
• proxygen/fizz/fizz/protocol/Exporter.cpp