Sha256: e6f79ea31f6f0cf2de02f00801b3343ffd3737601d2f98a6d2e4e7e9f6573032
Contents?: true
Size: 822 Bytes
Versions: 15
Compression:
Stored size: 822 Bytes
Contents
# -*- coding: binary -*-
require 'rex/text'
module Rex
module Proto
module SMB
class Crypt
@@loaded_openssl = false
begin
require 'openssl'
@@loaded_openssl = true
rescue ::Exception
end
# Return a signed SMB packet
def self.sign_smb_packet(mackey, sequence_counter, data)
raise RuntimeError, "No OpenSSL support" if not @@loaded_openssl
seq = Rex::Text::pack_int64le(sequence_counter)
netbios_hdr = data.slice!(0,4)
data[14,8] = seq
signature = OpenSSL::Digest::MD5.digest(mackey + data)[0,8]
data[14,8] = signature
netbios_hdr + data
end
def self.is_signature_correct?(mackey, sequence_counter, data)
signature1 = data[18,8]
signature2 = sign_smb_packet(mackey, sequence_counter, data.dup)[18,8]
return signature1 == signature2
end
end
end
end
end
Version data entries
15 entries across 15 versions & 3 rubygems