rsa.js 1.1 KB

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  1. /*
  2. * Copyright (c) 2014-2015 Sylvain Peyrefitte
  3. *
  4. * This file is part of node-rdpjs.
  5. *
  6. * node-rdpjs is free software: you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation, either version 3 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with this program. If not, see <http://www.gnu.org/licenses/>.
  18. */
  19. var BigInteger = require('./jsbn');
  20. /**
  21. * @param modulus {Buffer}
  22. * @param pubExp {integer}
  23. */
  24. function publicKey(modulus, pubExp) {
  25. return {
  26. n : modulus,
  27. e : pubExp
  28. }
  29. }
  30. function encrypt(data, publicKey) {
  31. return new BigInteger(data).modPowInt(publicKey.e, new BigInteger(publicKey.n)).toBuffer();
  32. }
  33. /**
  34. * Module Export
  35. */
  36. module.exports = {
  37. publicKey : publicKey,
  38. encrypt : encrypt
  39. };