pike.git/ lib/ modules/ Crypto.pmod/ DH.pmod

2015-06-04

2015-06-04 12:59:23 by Henrik Grubbström (Grubba) <grubba@grubba.org>

• 14c29ced75b7e403f987897d5dd41bd441c78367 (65 lines) (+2/-63) ^{[ Show | Annotate ]}
  Branch: 8.1

Crypto.DH: Avoid circular dependency on Crypto.DSA.

Adds __builtin.Nettle.DH_Params.

26:   //! Diffie-Hellman parameters.   class Parameters   { - #if constant(Nettle.DH_Params) -  inherit Nettle.DH_Params; - #else -  //! Prime. -  Gmp.mpz p; +  inherit __builtin.Nettle.DH_Params;    -  //! Generator. -  Gmp.mpz g; -  -  //! Subgroup size. -  Gmp.mpz q; -  -  // FIXME: generate(). -  -  //! Generate a Diffie-Hellman key pair. -  //! -  //! @returns -  //! Returns the following array: -  //! @array -  //! @elem Gmp.mpz 0 -  //! The generated public key. -  //! @elem Gmp.mpz 1 -  //! The corresponding private key. -  //! @endarray -  array(Gmp.mpz) generate_keypair(function(int(0..):string(8bit)) rnd) -  { -  Gmp.mpz key = [object(Gmp.mpz)] -  (Gmp.mpz(rnd([int(0..)](q->size() / 8 + 16)), 256) % (q - 1) + 1); -  -  Gmp.mpz pub = g->powm(key, p); -  -  return ({ pub, key }); -  } - #endif -  +     //! Validate that the DH Parameters doesn't have obvious security    //! weaknesses. It will first attempt to verify the prime @[p] using    //! Donald Knuth's probabilistic primality test with provided
84:       //! Initialize the set of Diffie-Hellman parameters.    //! -  //! @param other -  //! Copy the parameters from this object. -  protected void create(this_program other) -  { -  p = other->p; -  g = other->g; -  q = other->q; -  } -  -  //! Initialize the set of Diffie-Hellman parameters. -  //! +     //! @param dsa    //! Copy the parameters from this object.    protected variant void create(Crypto.DSA.State dsa)
104:    q = dsa->get_q();    }    -  //! Initialize the set of Diffie-Hellman parameters. -  //! -  //! @param p -  //! The prime for the group. -  //! -  //! @param g -  //! The generator for the group. Defaults to @expr{2@}. -  //! -  //! @param q -  //! The order of the group. Defaults to @expr{(p-1)/2@}. -  protected variant void create(Gmp.mpz|int p, Gmp.mpz|int|void g, -  Gmp.mpz|int|void q) -  { -  this::p = Gmp.mpz(p); -  this::g = g && Gmp.mpz(g) || Gmp.mpz(2); -  this::q = q && Gmp.mpz(q) || Gmp.mpz( [int](p-1)/2 ); -  } -  +     protected string _sprintf(int t)    {    if( t!='O' ) return UNDEFINED;