-- reading a RSA key pair from a file
 -- NB: this is for TESTING purposes only, NOT a production IO package!
 -- S.MG, 2018

with Raw_Types;
with RSA_OAEP;

package IO_RSA is

  -- reads a full private key from specified file, in Hex format
  -- one component per line, in order: n, e, d, p, q, u
  -- NB: length of each component has to match *precisely* the expected length
  -- specifically, using Raw_Types: 
  --   n, d are RSA_len'Length*2; 
  --   e, p, q, u are RSA_half'Length*2
  procedure ReadRSAKey( Filename: in String; Key: out RSA_OAEP.RSA_skey );

  -- convert hexadecimal strings to octets representation
  procedure Hex2Octets( Hex: in String; O: out Raw_Types.Octets );

end IO_RSA;