4.2.3 NTLM v1 with Client Challenge

The following calculations are used in section 3.3.1. This example uses weaker key strengths than advised. Using stronger key strengths with NTLM v1 with client challenge results in the same GSS_WrapEx outputs with NTLMv2.

The Challenge Flags used in the following NTLM v1 examples are:

  • NTLMSSP_NEGOTIATE_56

  • NTLMSSP_NEGOTIATE_VERSION

  • NTLMSSP_NEGOTIATE_EXTENDED_SESSIONSECURITY

  • NTLMSSP_TARGET_TYPE_SERVER

  • NTLMSSP_NEGOTIATE_ALWAYS_SIGN

  • NTLM NTLMSSP_NEGOTIATE_NTLM

  • NTLMSSP_NEGOTIATE_SEAL

  • NTLMSSP_NEGOTIATE_SIGN

  • NTLM_NEGOTIATE_OEM

  • NTLMSSP_NEGOTIATE_UNICODE

     0000000: 33 82 0a 82                                       3...
    
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