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-rw-r--r--pure-java/sha3sum.java25
1 files changed, 23 insertions, 2 deletions
diff --git a/pure-java/sha3sum.java b/pure-java/sha3sum.java
index 75f48b0..d8b5d85 100644
--- a/pure-java/sha3sum.java
+++ b/pure-java/sha3sum.java
@@ -67,7 +67,7 @@ public class sha3sum
else if (cmd == "sha3-256sum") o = _o = 256;
else if (cmd == "sha3-384sum") o = _o = 384;
else if (cmd == "sha3-512sum") o = _o = 512;
- boolean binary = false;
+ boolean binary = false, hex = false;
int multi = 0;
String[] files = new String[argv.length + 1];
@@ -111,6 +111,9 @@ public class sha3sum
System.out.println(" -i ITERATIONS");
System.out.println(" --iterations The number of hash iterations to run. (default: " + _i + ")");
System.out.println(" ");
+ System.out.println(" -h");
+ System.out.println(" --hex Read the input in hexadecimal, rather than binary.");
+ System.out.println(" ");
System.out.println(" -b");
System.out.println(" --binary Print the checksum in binary, rather than hexadecimal.");
System.out.println(" ");
@@ -182,6 +185,8 @@ public class sha3sum
binary = true;
else if (arg == "--multi")
multi++;
+ else if (arg == "--hex")
+ hex = true;
else
linger = new String[] { arg, null };
else if (arg.startsWith("-"))
@@ -197,6 +202,11 @@ public class sha3sum
multi++;
arg = arg.substring(1);
}
+ else if (arg.charAt(0) == 'h')
+ {
+ hex = true;
+ arg = arg.substring(1);
+ }
else if (arg.length() == 1)
linger = new String[] { "-" + arg, null };
else
@@ -328,7 +338,18 @@ public class sha3sum
int read = file.read(chunk, 0, blksize);
if (read <= 0)
break;
- SHA3.update(chunk, read);
+ if (hex == false)
+ SHA3.update(chunk, read);
+ else
+ {
+ int n = read << 1;
+ for (int _ = 0; _ < n; _++)
+ {
+ byte a = chunk[_ << 1], b = chunk[(_ << 1) | 1];
+ chunk[_] = (byte)((((a & 15) + (a <= '9' ? 0 : 9)) << 4) | ((b & 15) + (b <= '9' ? 0 : 9)));
+ }
+ SHA3.update(chunk, n);
+ }
}
byte[] bs = SHA3.digest();
if (multi == 0)