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| author | J08nY | 2018-08-11 21:52:48 +0200 |
|---|---|---|
| committer | J08nY | 2018-08-11 22:03:39 +0200 |
| commit | b6d6766fef9b73db70bda8b6b398128ba5a41ab2 (patch) | |
| tree | a470e36aa69cb9e778070b175e9223432244f210 /src/cz/crcs/ectester/common/util/ECUtil.java | |
| parent | 1284516b6630250a3fc4a2bf8d23e15fede5a77b (diff) | |
| download | ECTester-b6d6766fef9b73db70bda8b6b398128ba5a41ab2.tar.gz ECTester-b6d6766fef9b73db70bda8b6b398128ba5a41ab2.tar.zst ECTester-b6d6766fef9b73db70bda8b6b398128ba5a41ab2.zip | |
Add various ECDSA tests.
Diffstat (limited to 'src/cz/crcs/ectester/common/util/ECUtil.java')
| -rw-r--r-- | src/cz/crcs/ectester/common/util/ECUtil.java | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cz/crcs/ectester/common/util/ECUtil.java b/src/cz/crcs/ectester/common/util/ECUtil.java index 3c1f138..6c3ad58 100644 --- a/src/cz/crcs/ectester/common/util/ECUtil.java +++ b/src/cz/crcs/ectester/common/util/ECUtil.java @@ -210,4 +210,8 @@ public class ECUtil { ECPrivateKey privkey = new RawECPrivateKey(toScalar(kp), curve.toSpec()); return new KeyPair(pubkey, privkey); } + + public static byte[] toDERSignature(byte[] r, byte[] s) { + return ByteUtil.concatenate(new byte[]{0x30, (byte) (r.length + s.length + 4), 0x02, (byte) r.length}, r, new byte[]{0x02, (byte) s.length}, s); + } } |