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workaround for bug in Opera 10.60 a1. should get rolled back if that bug is fixed

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This commit is contained in:
Mike Hamburg
2010-06-11 14:43:19 -07:00
parent 6efa96883e
commit c3435d1be3
3 changed files with 13 additions and 12 deletions
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4
core/ccm.js
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@@ -136,13 +136,13 @@ sjcl.mode.ccm = {
// mac the data itself
macData = w.concat(macData, adata);
for (i=0; i<macData.length; i += 4) {
mac = prf.encrypt(xor(mac, macData.slice(i,i+4)));
mac = prf.encrypt(xor(mac, macData.slice(i,i+4).concat([0,0,0])));
}
}
// mac the plaintext
for (i=0; i<plaintext.length; i+=4) {
mac = prf.encrypt(xor(mac, plaintext.slice(i,i+4)));
mac = prf.encrypt(xor(mac, plaintext.slice(i,i+4).concat([0,0,0])));
}
return w.clamp(mac, tlen * 8);

8
core/ocb2.js
View File

@@ -58,10 +58,10 @@ sjcl.mode.ocb2 = {
bi = plaintext.slice(i);
bl = w.bitLength(bi);
pad = prp.encrypt(xor(delta,[0,0,0,bl]));
bi = w.clamp(xor(bi,pad), bl);
bi = w.clamp(xor(bi.concat([0,0,0]),pad), bl);
/* Checksum the final block, and finalize the checksum */
checksum = xor(checksum,xor(bi,pad));
checksum = xor(checksum,xor(bi.concat([0,0,0]),pad));
checksum = prp.encrypt(xor(checksum,xor(delta,times2(delta))));
/* MAC the header */
@@ -112,7 +112,7 @@ sjcl.mode.ocb2 = {
/* Chop out and decrypt the final block */
bl = len-i*32;
pad = prp.encrypt(xor(delta,[0,0,0,bl]));
bi = xor(pad, w.clamp(ciphertext.slice(i),bl));
bi = xor(pad, w.clamp(ciphertext.slice(i),bl).concat([0,0,0]));
/* Checksum the final block, and finalize the checksum */
checksum = xor(checksum, bi);
@@ -153,7 +153,7 @@ sjcl.mode.ocb2 = {
bi = adata.slice(i);
if (w.bitLength(bi) < 128) {
delta = xor(delta,times2(delta));
bi = w.concat(bi,[0x80000000|0]);
bi = w.concat(bi,[0x80000000|0,0,0,0]);
}
checksum = xor(checksum, bi);
return prp.encrypt(xor(times2(xor(delta,times2(delta))), checksum));