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  1. 28 Sep, 2021 3 commits
  2. 08 Sep, 2021 1 commit
  3. 06 Sep, 2021 1 commit
    • Cedric Roux's avatar
      gnb sa: improve security · eeca3836
      Cedric Roux authored
      Note: some modifications have been done to the UE too, but for syntactic
      reasons. The UE may fail to work, not tested.
      
      For the UE, we have the problem of handling properly SecurityModeCommand.
      We don't verify its integrity. This is a bit complicated to handle properly
      and may require some API changes in the PDCP layer. So, as of today, the
      integrity of this message is not verified.
      
      Also, NSA mode has been touched, but it should not be a problem. But not
      tested, so not sure.
      eeca3836
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    • Cedric Roux's avatar
      NSA: first draft of nea2 security for gNB · 10e021e9
      Cedric Roux authored
      The code is forced to use nea2, no matter what the UE supports.
      
      After 2^18 PDCP packets, it will fail to work (we don't use HFN yet).
      
      These limitations will be fixed in later commits.
      
      The existing security function was not reused, because it does too
      much memory allocation and initializes the security context at each
      ciphering. So here comes nr_pdcp_security_nea2_cipher(). And also
      the ciphering is done inplace. To be changed if necessary.
      10e021e9