public static function ParagonIE_Sodium_Core_Curve25519::ge_p2_dbl in Automatic Updates 8

Same name and namespace in other branches

1. 7 vendor/paragonie/sodium_compat/src/Core/Curve25519.php \ParagonIE_Sodium_Core_Curve25519::ge_p2_dbl()

@internal You should not use this directly from another application

Parameters

ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p:

Return value

ParagonIE_Sodium_Core_Curve25519_Ge_P1p1

3 calls to ParagonIE_Sodium_Core_Curve25519::ge_p2_dbl()

ParagonIE_Sodium_Core_Curve25519::ge_double_scalarmult_vartime in vendor/paragonie/sodium_compat/src/Core/Curve25519.php

@internal You should not use this directly from another application

ParagonIE_Sodium_Core_Curve25519::ge_p3_dbl in vendor/paragonie/sodium_compat/src/Core/Curve25519.php

@internal You should not use this directly from another application

ParagonIE_Sodium_Core_Curve25519::ge_scalarmult_base in vendor/paragonie/sodium_compat/src/Core/Curve25519.php

@internal You should not use this directly from another application

File

vendor/paragonie/sodium_compat/src/Core/Curve25519.php, line 1526

Class

ParagonIE_Sodium_Core_Curve25519

Class ParagonIE_Sodium_Core_Curve25519

Code

public static function ge_p2_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p) {
  $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
  $r->X = self::fe_sq($p->X);
  $r->Z = self::fe_sq($p->Y);
  $r->T = self::fe_sq2($p->Z);
  $r->Y = self::fe_add($p->X, $p->Y);
  $t0 = self::fe_sq($r->Y);
  $r->Y = self::fe_add($r->Z, $r->X);
  $r->Z = self::fe_sub($r->Z, $r->X);
  $r->X = self::fe_sub($t0, $r->Y);
  $r->T = self::fe_sub($r->T, $r->Z);
  return $r;
}