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biafra23/Create EC Signature

Created May 16, 2017 10:04
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Create EC Signature
Signature signer = Signature.getInstance(Signature.ALG_ECDSA_SHA, false);
signer.init(cardPrivateKey, Signature.MODE_SIGN);
byte[] sigBuffer = new byte[100];
short size = signer.sign(buffer, offset, length, sigBuffer, (short) 0);
byte[] result = new byte[size];
Util.arrayCopyNonAtomic(sigBuffer, (short) 0, result, (short) 0, size);
return result;
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