pike.git/ src/ post_modules/ Nettle/ hogweed.cmod

2015-01-23

2015-01-23 15:31:41 by Henrik Grubbström (Grubba) <grubba@grubba.org>

• 4b485c72fdc8a2a17ca6ee4f2b26dbf19aa5ab38 (23 lines) (+14/-9) ^{[ Show | Annotate ]}
  Branch: 8.1

Nettle.ECC_Curve: Curve-multiplication now returns Points.

NB: This is not backward compatible with current Pike 8.0.

447:    ecc_scalar_clear(&s);    }    -  /*! @decl array(Gmp.mpz) `*(Gmp.mpz|int scalar) +  static int Nettle_ECC_Curve_Point_program_fun_num; +  +  /*! @decl Point `*(Gmp.mpz|int scalar)    *!    *! Multiply the curve by a scalar.    *!    *! This can be used to get the public key from a private key.    *!    *! @returns -  *! Returns a new point (x, y) on the curve. +  *! Returns a new @[Point] on the curve.    */ -  PIKEFUN array(object(Gmp.mpz)) `*(object(Gmp.mpz)|int scalar) +  PIKEFUN Nettle_ECC_Curve_Point `*(object(Gmp.mpz)|int scalar)    {    struct ecc_scalar s;    struct ecc_point r;
484:    ecc_scalar_clear(&s);    ecc_point_clear(&r);    -  f_aggregate(2); +  apply_current(Nettle_ECC_Curve_Point_program_fun_num, 2);    }    -  /*! @decl array(Gmp.mpz) point_mul(Gmp.mpz|int x, Gmp.mpz|int y, @ -  *! Gmp.mpz|int scalar) +  /*! @decl Point point_mul(Gmp.mpz|int x, Gmp.mpz|int y, @ +  *! Gmp.mpz|int scalar)    *!    *! Multiply a point on the curve by a scalar.    *!    *! A typical use is for Elliptic Curve Diffie Hellman (ECDH) key exchange.    *! -  +  *! This is equivalent to @code{(Point(x, y) * scalar)@}. +  *!    *! @returns -  *! Returns the new point on the curve. +  *! Returns the new @[Point] on the curve.    *!    *! @throws    *! Throws an error if the point (@[x], @[y]) isn't on the curve.    */ -  PIKEFUN array(object(Gmp.mpz)) point_mul(object(Gmp.mpz)|int x, +  PIKEFUN Nettle_ECC_Curve_Point point_mul(object(Gmp.mpz)|int x,    object(Gmp.mpz)|int y,    object(Gmp.mpz)|int scalar)    {
545:    ecc_scalar_clear(&s);    ecc_point_clear(&p);    -  f_aggregate(2); +  apply_current(Nettle_ECC_Curve_Point_program_fun_num, 2);    stack_pop_n_elems_keep_top(args);    }