1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
new sjcl.test.TestCase("OCB 2.0 progressive mode tests", function (cb) {
if (!sjcl.cipher.aes || !sjcl.mode.ocb2 || !sjcl.mode.ocb2progressive) {
this.unimplemented();
cb && cb();
return;
}
var i, kat = sjcl.test.vector.ocb2, tv, iv, ct, aes, len, tlen, thiz=this, w=sjcl.bitArray, pt, iv, h = sjcl.codec.hex, ad, tlen;
browserUtil.cpsIterate(function (j, cbb) {
for (i=100*j; i<kat.length && i<100*(j+1); i++) {
tv = kat[i];
len = 32 * tv.key.length;
aes = new sjcl.cipher.aes(h.toBits(tv.key));
// sort of a hack because of the format of the vectors file
pt = h.toBits(tv.pt);
ct = h.toBits(tv.ct+tv.tag);
iv = h.toBits(tv.iv);
ad = h.toBits(tv.adata);
tlen = tv.tag.length * 4;
var enc = sjcl.mode.ocb2progressive.createEncryptor(aes, iv, ad, tlen);
var result = [];
var sliceSizeRange = 3; // 1 to 3 bytes
var slice = [0, Math.floor((Math.random() * sliceSizeRange) + 1)];
while (slice[0] < pt.length) {
result = result.concat(enc.process(pt.slice(slice[0], slice[1])));
slice[0] = slice[1];
slice[1] = slice[0] + Math.floor((Math.random() * sliceSizeRange) + 1);
}
result = result.concat(enc.finalize());
thiz.require(w.equal(result, ct), "aes-"+len+"-ocb2-encrypt #"+i);
try {
var dec = sjcl.mode.ocb2progressive.createDecryptor(aes, iv, ad, tlen);
var dresult = [];
var sliceSizeRange = 3; // 1 to 3 bytes
var slice = [0, Math.floor((Math.random() * sliceSizeRange) + 1)];
while (slice[0] < ct.length) {
dresult = dresult.concat(dec.process(ct.slice(slice[0], slice[1])));
slice[0] = slice[1];
slice[1] = slice[0] + Math.floor((Math.random() * sliceSizeRange) + 1);
}
dresult = dresult.concat(dec.finalize());
thiz.require(w.equal(dresult, pt), "aes-"+len+"-ocb2-decrypt #"+i);
} catch (e) {
thiz.fail("aes-ocb-decrypt #"+i+" (exn " + e + ")");
}
}
cbb();
}, 0, kat.length / 100, true, cb);
});
|
