for(i = 0; i + CSUM_CHUNK <= len; i += CSUM_CHUNK) {
mdfour_update(&m, (uchar *)(buf1+i), CSUM_CHUNK);
}
- if (len - i > 0) {
+ /*
+ * Prior to version 27 an incorrect MD4 checksum was computed
+ * by failing to call mdfour_tail() for block sizes that
+ * are multiples of 64. This is fixed by calling mdfour_update()
+ * even when there are no more bytes.
+ */
+ if (len - i > 0 || remote_version >= 27) {
mdfour_update(&m, (uchar *)(buf1+i), (len-i));
}
mdfour_update(&m, (uchar *)tmpchunk, CSUM_CHUNK);
}
+ /*
+ * Prior to version 27 an incorrect MD4 checksum was computed
+ * by failing to call mdfour_tail() for block sizes that
+ * are multiples of 64. This is fixed by calling mdfour_update()
+ * even when there are no more bytes.
+ */
if (len - i > 0) {
memcpy(tmpchunk, map_ptr(buf,i,len-i), len-i);
+ }
+ if (len - i > 0 || remote_version >= 27) {
mdfour_update(&m, (uchar *)tmpchunk, (len-i));
}
void sum_end(char *sum)
{
- if (sumresidue) {
+ if (sumresidue || remote_version >= 27) {
mdfour_update(&md, (uchar *)sumrbuf, sumresidue);
}