private void addVersion(HashBlock block, String content) throws Exception {
// 1 plain hash, plus 4 voters
MessageDigest[] digests = new MessageDigest[5];
// fake "Plain Hash"
digests[0] = MessageDigest.getInstance("SHA1");
digests[0].update(content.getBytes());
// fake "Nonced Hash" for voter 1
digests[1] = MessageDigest.getInstance("SHA1");
digests[1].update(content.getBytes());
// fake "Nonced Hash" for voter 2
digests[2] = MessageDigest.getInstance("SHA1");
digests[2].update(content.getBytes());
// fake "Nonced Hash" for voter 3
digests[3] = MessageDigest.getInstance("SHA1");
digests[3].update(content.getBytes());
// fake "Nonced Hash" for voter 4
digests[4] = MessageDigest.getInstance("SHA1");
digests[4].update(content.getBytes());
block.addVersion(
0,
content.length(),
0,
content.length(),
digests.length * content.length(), // total bytes hashed
digests,
hbVersionNum++,
null);
}
private byte[] addVersion(VoteBlock block, String content) throws Exception {
MessageDigest md = MessageDigest.getInstance("SHA1");
md.update(content.getBytes());
byte[] hash = md.digest();
block.addVersion(0, content.length(), 0, content.length(), hash, hash, false);
return hash;
}