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authorJ08nY2018-11-28 01:04:31 +0100
committerJ08nY2018-11-28 01:04:31 +0100
commitebe40e2fdd5e28cdabe05250422f3149e188641a (patch)
treefbf29423e8053c6a7267d600d1630fefb1bf1a1b /src/cz/crcs/ectester/common/util/ECUtil.java
parent7e9917742785a9fd532a52231e95ddad5775555f (diff)
parent12845c8c41eff5f598dc8e843920f5bb4638775d (diff)
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Merge branch 'devel'
Diffstat (limited to 'src/cz/crcs/ectester/common/util/ECUtil.java')
-rw-r--r--src/cz/crcs/ectester/common/util/ECUtil.java8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cz/crcs/ectester/common/util/ECUtil.java b/src/cz/crcs/ectester/common/util/ECUtil.java
index 6c3ad58..1706ca0 100644
--- a/src/cz/crcs/ectester/common/util/ECUtil.java
+++ b/src/cz/crcs/ectester/common/util/ECUtil.java
@@ -31,6 +31,14 @@ public class ECUtil {
return raw;
}
+ public static byte[] toX962Compressed(byte[][] point) {
+ if (point.length != 2) {
+ return null;
+ }
+ byte ybit = (byte) (point[1][point[1].length - 1] % 2);
+ return ByteUtil.concatenate(new byte[]{(byte) (0x02 | ybit)}, point[0]);
+ }
+
public static byte[] toX962Compressed(ECPoint point, int bits) {
if (point.equals(ECPoint.POINT_INFINITY)) {
return new byte[]{0};