void parseHeaderLine(String line, KatResult kr) {
Scanner lineScanner = new Scanner(line);
lineScanner.findInLine(":Skein-(\\d+):\\s*(\\d+)-.*=\\s*(\\d+) bits(.*)");
MatchResult result = null;
try {
result = lineScanner.match();
} catch (Exception e) {
System.out.println("Header line: " + line);
e.printStackTrace();
System.exit(1);
}
kr.stateSize = Integer.parseInt(result.group(1));
kr.hashBitLength = Integer.parseInt(result.group(2));
kr.msgLength = Integer.parseInt(result.group(3));
kr.restOfLine = result.group(4);
if ((kr.msgLength == 0) || (kr.msgLength % 8) != 0)
kr.msg = new byte[(kr.msgLength >> 3) + 1];
else kr.msg = new byte[kr.msgLength >> 3];
if ((kr.hashBitLength % 8) != 0) kr.result = new byte[(kr.hashBitLength >> 3) + 1];
else kr.result = new byte[kr.hashBitLength >> 3];
kr.msgFill = 0;
kr.resultFill = 0;
kr.macKeyFill = 0;
}
void parseResultLine(String line, KatResult kr) {
Scanner ls = new Scanner(line);
while (ls.hasNext()) {
try {
kr.result[kr.resultFill++] = (byte) ls.nextInt(16);
} catch (Exception e) {
System.out.println("Result data: " + line);
e.printStackTrace();
System.exit(1);
}
}
}
void parseMacKeyHeaderLine(String line, KatResult kr) {
Scanner ls = new Scanner(line);
ls.findInLine(".*=\\s*(\\d+) .*");
MatchResult result = null;
try {
result = ls.match();
} catch (Exception e) {
System.out.println("Mac header: " + line);
e.printStackTrace();
System.exit(1);
}
kr.macKeyLen = Integer.parseInt(result.group(1));
kr.macKey = new byte[kr.macKeyLen];
state = MacKey;
}
void parseMacKeyLine(String line, KatResult kr) {
if (line.contains("(none)")) {
return;
}
Scanner ls = new Scanner(line);
while (ls.hasNext()) {
try {
kr.macKey[kr.macKeyFill++] = (byte) ls.nextInt(16);
} catch (Exception e) {
System.out.println("Mac key data: " + line);
e.printStackTrace();
System.exit(1);
}
}
}
void parseLine(String line, KatResult kr) {
line = line.trim();
if (line.length() <= 1) return;
if (line.startsWith("Message")) {
state = Message;
return;
}
if (line.startsWith("Result")) {
state = Result;
return;
}
if (line.startsWith("MAC")) {
state = MacKeyHeader;
}
if (line.startsWith("------")) {
state = Done;
return;
}
switch (state) {
case Start:
if (line.startsWith(":Skein-")) {
parseHeaderLine(line, kr);
} else {
System.out.println("Wrong format found");
System.exit(1);
}
break;
case Message:
parseMessageLine(line, kr);
break;
case Result:
parseResultLine(line, kr);
break;
case MacKey:
parseMacKeyLine(line, kr);
break;
case MacKeyHeader:
parseMacKeyHeaderLine(line, kr);
break;
}
}
private void readObject(ObjectInputStream instr) {
System.exit(0);
}
