Method: Tem::Admin::Emit.emit_keygen_seclosure

Defined in:
lib/tem/admin/emit.rb

.emit_keygen_seclosure ⇒ Object

The SEClosure that performs key generation for the TEM.



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# File 'lib/tem/admin/emit.rb', line 14

def self.emit_keygen_seclosure
  Tem::Assembler.assemble { |s|
    # Generate Endorsement Key pair, should end up in slots (0, 1).
    s.genkp :type => 0
    s.ldbc 1
    s.sub
    s.jne :to => :not_ok
    s.ldbc 0
    s.sub
    s.jne :to => :not_ok
    
    # Generate and output random authorization for PrivEK.
    s.ldbc 20
    s.dupn :n => 1
    s.outnew
    s.ldwc :privek_auth
    s.dupn :n => 2
    s.rnd
    s.outvb
    # Set authorizations for PrivEK and PubkEK.
    s.ldbc 0
    s.authk :auth => :privek_auth
    s.ldbc 1 # PubEK always has its initial authorization be all zeroes.
    s.authk :auth => :pubek_auth
    s.halt
    
    # Emitting didn't go well, return nothing and leave.
    s.label :not_ok
    s.ldbc 0
    s.outnew
    s.halt
    
    s.label :privek_auth
    s.zeros :tem_ubyte, 20
    s.label :pubek_auth
    s.zeros :tem_ubyte, 20
    s.stack 4    
  }
end