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| author | Ivan Muratov <binakot@gmail.com> | 2017-07-13 08:42:17 +0300 |
|---|---|---|
| committer | Ivan Muratov <binakot@gmail.com> | 2017-07-13 08:42:17 +0300 |
| commit | 358b591bc457786927ac1466e10181bbffbcf56b (patch) | |
| tree | c55745c3ebf2c09acd2d784f828c79e2f3e588c6 /src/org/traccar/helper/Checksum.java | |
| parent | 6e70a873886b366980423e448808b60c624e4047 (diff) | |
| download | trackermap-server-358b591bc457786927ac1466e10181bbffbcf56b.tar.gz trackermap-server-358b591bc457786927ac1466e10181bbffbcf56b.tar.bz2 trackermap-server-358b591bc457786927ac1466e10181bbffbcf56b.zip | |
Replace MODULO256 checksum method.
Added covering tests.
Diffstat (limited to 'src/org/traccar/helper/Checksum.java')
| -rw-r--r-- | src/org/traccar/helper/Checksum.java | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/org/traccar/helper/Checksum.java b/src/org/traccar/helper/Checksum.java index 43ba6a689..7a0151d36 100644 --- a/src/org/traccar/helper/Checksum.java +++ b/src/org/traccar/helper/Checksum.java @@ -243,4 +243,12 @@ public final class Checksum { return (10 - (checksum % 10)) % 10; } + public static int modulo256(byte... bytes) { + int sum = 0; + for (byte b : bytes) { + sum = (sum + b) & 0xFF; + } + return sum; + } + } |