cbc_test.js 1.0 KB

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  1. new sjcl.test.TestCase("CBC mode tests", function (cb) {
  2. ((sjcl.beware &&
  3. sjcl.beware["CBC mode is dangerous because it doesn't protect message integrity."]) ||
  4. function(){})();
  5. if (!sjcl.cipher.aes || !sjcl.mode.cbc) {
  6. this.unimplemented();
  7. cb && cb();
  8. return;
  9. }
  10. var i, kat = sjcl.test.vector.cbc, tv, iv, ct, aes, len, thiz=this, w=sjcl.bitArray, pt, h=sjcl.codec.hex;
  11. browserUtil.cpsIterate(function (j, cbb) {
  12. for (i=100*j; i<kat.length && i<100*(j+1); i++) {
  13. tv = kat[i];
  14. len = 32 * tv.key.length;
  15. aes = new sjcl.cipher.aes(h.toBits(tv.key));
  16. // Convert from strings
  17. iv = h.toBits(tv.iv);
  18. pt = h.toBits(tv.pt);
  19. ct = h.toBits(tv.ct);
  20. thiz.require(w.equal(sjcl.mode.cbc.encrypt(aes, pt, iv), ct), "aes-"+len+"-cbc-encrypt #"+i);
  21. try {
  22. thiz.require(w.equal(sjcl.mode.cbc.decrypt(aes, ct, iv), pt), "aes-"+len+"-cbc-decrypt #"+i);
  23. } catch (e) {
  24. thiz.fail("aes-cbc-decrypt #"+i+" (exn "+e+")");
  25. }
  26. }
  27. cbb();
  28. }, 0, kat.length / 100, true, cb);
  29. });