50 lines
1.7 KiB
Java
50 lines
1.7 KiB
Java
/*
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SmartPGP : JavaCard implementation of OpenPGP card v3 specification
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https://github.com/ANSSI-FR/SmartPGP
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Copyright (C) 2016 ANSSI
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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package dev.c0de.smartpgp;
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import javacard.framework.*;
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public final class Fingerprint {
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protected final byte[] data;
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protected Fingerprint() {
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data = new byte[Constants.FINGERPRINT_SIZE];
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}
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protected final void reset(final boolean isRegistering) {
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Common.beginTransaction(isRegistering);
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Util.arrayFillNonAtomic(data, (short)0, Constants.FINGERPRINT_SIZE, (byte)0);
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Common.commitTransaction(isRegistering);
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}
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protected final void set(final byte[] buf, final short off, final short len) {
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if(len != Constants.FINGERPRINT_SIZE) {
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ISOException.throwIt(ISO7816.SW_WRONG_DATA);
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return;
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}
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Util.arrayCopy(buf, off, data, (short)0, len);
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}
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protected final short write(final byte[] buf, final short off) {
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return Util.arrayCopyNonAtomic(data, (short)0, buf, off, Constants.FINGERPRINT_SIZE);
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}
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}
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