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javacard-openpgpcard
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Moved repository to Git and fixed support for adding keys

This commit is contained in:
Joeri 2016-09-12 11:32:57 +02:00
commit 6d37b980cd
23 changed files with 2547 additions and 0 deletions
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src"/>
<classpathentry kind="con" path="com.ibm.bluez.jcop.eclipse.containers.cardconfig/com.ibm.bluez.jcop.eclipse.cardconfigs.njcop"/>
<classpathentry kind="output" path="bin"/>
</classpath>

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bin/

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<?xml version="1.0" encoding="UTF-8" standalone="no"?><jcop.project debug_comp="2" version="2"><package debug_comp="0" exportmap="false" jcop.id=""><aid jcop.id="package"/><version jcop.id="package">1.0</version></package><package debug_comp="0" exportmap="false" jcop.id="openpgpcard"><aid jcop.id="package">D27600012401</aid><version jcop.id="package">1.0</version><cunit jcop.id="OpenPGPApplet.java"><applet jcop.id="OpenPGPApplet"><aid jcop.id="applet">D2760001240102000000000000010000</aid></applet></cunit><cunit jcop.id="PGPKey.java"/><cunit jcop.id="OpenPGPSecureMessaging.java"/></package></jcop.project>

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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>OpenPGP JavaCard</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.ibm.bluez.jcop.eclipse.jcopbuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>com.ibm.bluez.jcop.eclipse.jcopnature</nature>
</natures>
</projectDescription>

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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.1
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.3
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=ignore
org.eclipse.jdt.core.compiler.problem.enumIdentifier=ignore
org.eclipse.jdt.core.compiler.source=1.3

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GNU GENERAL PUBLIC LICENSE
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project.name=OpenPGP JavaCard
base.dir=.
bin.dir=bin
lib.dir=lib
src.dir=src
jar.jctasks=jctasks.jar
jar.gpj=gpj.jar
cap.package=openpgpcard
cap.package_aid=0xD2:0x76:0x00:0x01:0x24:0x01
cap.applet=openpgpcard.OpenPGPApplet
cap.applet_aid=0xD2:0x76:0x00:0x01:0x24:0x01:0x02:0x00:0x00:0x00:0x00:0x00:0x00:0x01:0x00:0x00
gpj.sd_aid=0xA0:0x00:0x00:0x00:0x03:0x00:0x00:0x00

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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project name="${project.name}" default="applet">
<property file="build.properties" />
<!-- Definitions for tasks for Java Card tools -->
<taskdef name="apdutool" classname="com.sun.javacard.ant.tasks.APDUToolTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="capgen" classname="com.sun.javacard.ant.tasks.CapgenTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="maskgen" classname="com.sun.javacard.ant.tasks.MaskgenTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="deploycap" classname="com.sun.javacard.ant.tasks.DeployCapTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="exp2text" classname="com.sun.javacard.ant.tasks.Exp2TextTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="convert" classname="com.sun.javacard.ant.tasks.ConverterTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="verifyexport" classname="com.sun.javacard.ant.tasks.VerifyExpTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="verifycap" classname="com.sun.javacard.ant.tasks.VerifyCapTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="verifyrevision" classname="com.sun.javacard.ant.tasks.VerifyRevTask" classpath="${lib.dir}/${jar.jctasks}" />
<taskdef name="scriptgen" classname="com.sun.javacard.ant.tasks.ScriptgenTask" classpath="${lib.dir}/${jar.jctasks}" />
<typedef name="appletnameaid" classname="com.sun.javacard.ant.types.AppletNameAID" classpath="${lib.dir}/${jar.jctasks}" />
<typedef name="jcainputfile" classname="com.sun.javacard.ant.types.JCAInputFile" classpath="${lib.dir}/${jar.jctasks}" />
<typedef name="exportfiles" classname="org.apache.tools.ant.types.FileSet" classpath="${lib.dir}/${jar.jctasks}" />
<path id="classpath">
<fileset dir="${lib.dir}" includes="*.jar" />
</path>
<pathconvert property="cap.dir">
<path path="${bin.dir}/${cap.package}" />
<unpackagemapper from="*" to="*/javacard" />
</pathconvert>
<pathconvert property="cap.file">
<path path="${cap.package}" />
<chainedmapper>
<unpackagemapper from="*" to="*.cap" />
<flattenmapper />
</chainedmapper>
</pathconvert>
<target name="clean">
<delete dir="${bin.dir}" />
<delete dir="${base.dir}" includes="*.zip *.tar.*" />
</target>
<target name="compile">
<mkdir dir="${bin.dir}" />
<javac srcdir="${src.dir}" destdir="${bin.dir}" includeantruntime="false" source="1.3" target="1.2">
<classpath refid="classpath" />
</javac>
</target>
<target name="applet" depends="compile">
<convert dir="${bin.dir}" JCA="true" EXP="true" CAP="true" nobanner="true" majorminorversion="1.0"
packagename="${cap.package}" packageaid="${cap.package_aid}"
ExportPath="${lib.dir}/api_export_files:${lib.dir}/jcopx_export_files:${bin.dir}">
<AppletNameAID appletname="${cap.applet}" aid="${cap.applet_aid}" />
<classpath refid="classpath" />
</convert>
</target>
<target name="release" depends="clean,compile,applet">
<zip destfile="${base.dir}/${project.name}.zip">
<fileset dir="${base.dir}" excludes="*.zip *.tar.*" />
</zip>
<tar destfile="${base.dir}/${project.name}.tar.gz" compression="gzip">
<fileset dir="${base.dir}" excludes="*.zip *.tar.*" />
</tar>
<tar destfile="${base.dir}/${project.name}.tar.bz2" compression="bzip2">
<fileset dir="${base.dir}" excludes="*.zip *.tar.*" />
</tar>
</target>
<target name="install" depends="applet">
<java classname="net.sourceforge.gpj.cardservices.GlobalPlatformService">
<classpath refid="classpath" />
<arg line="-sdaid ${gpj.sd_aid}" />
<arg line="-deletedeps -delete ${cap.package_aid}" />
<arg line="-load '${cap.dir}/${cap.file}'" />
<arg line="-install -list" />
</java>
</target>
<target name="uninstall">
<java classname="net.sourceforge.gpj.cardservices.GlobalPlatformService">
<classpath refid="classpath" />
<arg line="-sdaid ${gpj.sd_aid}" />
<arg line="-deletedeps -delete ${cap.package_aid} -list" />
</java>
</target>
</project>

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/**
* Java Card implementation of the OpenPGP card
*
* Copyright (C) 2011 Joeri de Ruiter
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* OpenPGPSecureMessaging.java is based on OVSecureMessaging.java which is part
* of OVchip-ng
*
* Copyright (C) Pim Vullers, Radboud University Nijmegen, February 2011.
*/
package openpgpcard;
import javacard.framework.APDU;
import javacard.framework.ISO7816;
import javacard.framework.ISOException;
import javacard.framework.JCSystem;
import javacard.framework.Util;
import javacard.security.DESKey;
import javacard.security.KeyBuilder;
import javacard.security.Signature;
import javacardx.crypto.Cipher;
/**
* OV secure messaging functionality.
*
* <p>OVSecureMessaging is based on PassportCrypto which is part of the
* e-passport Java Card applet from the JMRTD project (http://jmrtd.org/).
*
* @author Pim Vullers
* @version $Revision: 12 $ by $Author: joeridr $
* $LastChangedDate: 2012-02-23 15:31:33 +0100 (Thu, 23 Feb 2012) $
*/
public class OpenPGPSecureMessaging {
private static final short SW_INTERNAL_ERROR = (short) 0x6D66;
private static final byte[] PAD_DATA = {(byte) 0x80, 0, 0, 0, 0, 0, 0, 0};
private static final short SSC_SIZE = 8;
private static final short TMP_SIZE = 256;
private static final short MAC_SIZE = 8;
private static final short KEY_SIZE = 16;
private static final byte[] EMPTY_KEY = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
/**
* The needed cryptographic functionality.
*/
private Signature signer;
private Signature verifier;
private Cipher cipher;
private Cipher decipher;
/**
* The needed keys.
*/
private DESKey keyMAC;
private DESKey keyENC;
/**
* The send sequence counter.
*/
private byte[] ssc;
/**
* Storage for temporary data.
*/
private byte[] tmp;
private boolean[] ssc_set;
/**
* Construct a new secure messaging wrapper.
*/
public OpenPGPSecureMessaging() {
ssc = JCSystem.makeTransientByteArray(SSC_SIZE,
JCSystem.CLEAR_ON_DESELECT);
tmp = JCSystem.makeTransientByteArray(TMP_SIZE,
JCSystem.CLEAR_ON_DESELECT);
signer = Signature.getInstance(
Signature.ALG_DES_MAC8_ISO9797_1_M2_ALG3, false);
verifier = Signature.getInstance(
Signature.ALG_DES_MAC8_ISO9797_1_M2_ALG3, false);
cipher = Cipher.getInstance(
Cipher.ALG_DES_CBC_ISO9797_M2, false);
decipher = Cipher.getInstance(
Cipher.ALG_DES_CBC_ISO9797_M2, false);
keyMAC = (DESKey) KeyBuilder.buildKey(
KeyBuilder.TYPE_DES_TRANSIENT_DESELECT,
KeyBuilder.LENGTH_DES3_2KEY, false);
keyENC = (DESKey) KeyBuilder.buildKey(
KeyBuilder.TYPE_DES_TRANSIENT_DESELECT,
KeyBuilder.LENGTH_DES3_2KEY, false);
ssc_set = JCSystem.makeTransientBooleanArray((short)1, JCSystem.CLEAR_ON_DESELECT);
ssc_set[0] = false;
}
/**
* Set the MAC and encryption (and decryption) session keys. Each key is a
* 16 byte 3DES EDE key. This method may be called at any time and will
* immediately replace the session key.
*
* @param buffer byte array containing the session keys.
* @param offset location of the session keys in the buffer.
*/
public void setSessionKeys(byte[] buffer, short offset) {
// Check for empty keys
if(Util.arrayCompare(buffer, (short)0, EMPTY_KEY, (short)0, KEY_SIZE) == 0 ||
Util.arrayCompare(buffer, KEY_SIZE, EMPTY_KEY, (short)0, KEY_SIZE) == 0) {
keyMAC.clearKey();
keyENC.clearKey();
}
else {
keyMAC.setKey(buffer, offset);
keyENC.setKey(buffer, (short) (offset + KEY_SIZE));
signer.init(keyMAC, Signature.MODE_SIGN);
verifier.init(keyMAC, Signature.MODE_VERIFY);
cipher.init(keyENC, Cipher.MODE_ENCRYPT);
decipher.init(keyENC, Cipher.MODE_DECRYPT);
}
}
/**
* Set the MAC session key. Each key is a 16 byte 3DES EDE key. This method
* may be called at any time and will immediately replace the session key.
*
* @param buffer byte array containing the session key.
* @param offset location of the session key in the buffer.
*/
public void setSessionKeyMAC(byte[] buffer, short offset) {
// Check for empty keys
if(Util.arrayCompare(buffer, (short)0, EMPTY_KEY, (short)0, KEY_SIZE) == 0) {
keyMAC.clearKey();
keyENC.clearKey();
}
else {
keyMAC.setKey(buffer, offset);
signer.init(keyMAC, Signature.MODE_SIGN);
verifier.init(keyMAC, Signature.MODE_VERIFY);
}
}
/**
* Set the encryption session key. Each key is a 16 byte 3DES EDE key. This method
* may be called at any time and will immediately replace the session key.
*
* @param buffer byte array containing the session key.
* @param offset location of the session key in the buffer.
*/
public void setSessionKeyEncryption(byte[] buffer, short offset) {
// Check for empty keys
if(Util.arrayCompare(buffer, (short)0, EMPTY_KEY, (short)0, KEY_SIZE) == 0) {
keyMAC.clearKey();
keyENC.clearKey();
}
else {
keyENC.setKey(buffer, (short) (offset + KEY_SIZE));
cipher.init(keyENC, Cipher.MODE_ENCRYPT);
decipher.init(keyENC, Cipher.MODE_DECRYPT);
}
}
/**
* Set the MAC and encryption (and decryption) 3DES session keys to zero.
*/
public void clearSessionKeys() {
keyMAC.clearKey();
keyENC.clearKey();
}
/**
* Unwraps (verify and decrypt) the command APDU located in the APDU buffer.
* The command buffer has to be filled by the APDU.setIncomingAndReceive()
* method beforehand. The verified and decrypted command data get placed at
* the start of the APDU buffer.
*
* @return the length value encoded by DO97, 0 if this object is missing.
*/
public short unwrapCommandAPDU() {
byte[] buf = APDU.getCurrentAPDUBuffer();
short apdu_p = (short) (ISO7816.OFFSET_CDATA & 0xff);
short start_p = apdu_p;
short le = 0;
short do87DataLen = 0;
short do87Data_p = 0;
short do87LenBytes = 0;
short hdrLen = 4;
short hdrPadLen = (short) (8 - hdrLen);
incrementSSC();
if (buf[apdu_p] == (byte) 0x87) {
apdu_p++;
// do87
if ((buf[apdu_p] & 0xff) > 0x80) {
do87LenBytes = (short) (buf[apdu_p] & 0x7f);
apdu_p++;
} else {
do87LenBytes = 1;
}
if (do87LenBytes > 2) { // sanity check
ISOException.throwIt(SW_INTERNAL_ERROR);
}
for (short i = 0; i < do87LenBytes; i++) {
do87DataLen += (short) ((buf[(short)(apdu_p + i)] & 0xff) << (short) ((do87LenBytes - 1 - i) * 8));
}
apdu_p += do87LenBytes;
if (buf[apdu_p] != 1) {
ISOException.throwIt(SW_INTERNAL_ERROR);
}
// store pointer to data and defer decrypt to after mac check (do8e)
do87Data_p = (short) (apdu_p + 1);
apdu_p += do87DataLen;
do87DataLen--; // compensate for 0x01 marker
}
if (buf[apdu_p] == (byte) 0x97) {
// do97
if (buf[++apdu_p] != 1)
ISOException.throwIt(SW_INTERNAL_ERROR);
le = (short) (buf[++apdu_p] & 0xff);
apdu_p++;
}
// do8e
if (buf[apdu_p] != (byte) 0x8e) {
ISOException.throwIt(SW_INTERNAL_ERROR);
}
if (buf[++apdu_p] != 8) {
ISOException.throwIt(ISO7816.SW_DATA_INVALID);
}
// verify mac
verifier.update(ssc, (short)0, (short)ssc.length);
verifier.update(buf, (short)0, hdrLen);
verifier.update(PAD_DATA, (short)0, hdrPadLen);
if (!verifier.verify(buf, start_p, (short) (apdu_p - 1 - start_p), buf,
(short)(apdu_p + 1), MAC_SIZE)) {
ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED);
}
short lc = 0;
if (do87DataLen != 0) {
// decrypt data, and leave room for lc
lc = decipher.doFinal(buf, do87Data_p, do87DataLen, buf,
(short) (hdrLen + 1));
buf[hdrLen] = (byte) (lc & 0xff);
}
return le;
}
/**
* Wraps (encrypts and build MAC) the response data and places it in the
* APDU buffer starting at offset 0. The buffer can be any buffer including
* the APDU buffer itself. If the length is zero the buffer will not be
* addressed and no response data will be present in the wrapped output.
*
* @param buffer byte array containing the data which needs to be wrapped.
* @param offset location of the data in the buffer.
* @param length of the data in the buffer (in bytes).
* @param status word which has to be wrapped in the response APDU.
* @return the length of the wrapped data in the <apdu> buffer
*/
public short wrapResponseAPDU(byte[] buffer, short offset, short length,
short status) {
byte[] apdu = APDU.getCurrentAPDUBuffer();
short apdu_p = 0;
// smallest multiple of 8 strictly larger than plaintextLen (length + padding)
short do87DataLen = (short) ((((short) (length + 8)) / 8) * 8);
// for 0x01 marker (indicating padding is used)
do87DataLen++;
short do87DataLenBytes = (short)(do87DataLen > 0xff? 2 : 1);
short do87HeaderBytes = getApduBufferOffset(length);
short do87Bytes = (short)(do87HeaderBytes + do87DataLen - 1); // 0x01 is counted twice
boolean hasDo87 = length > 0;
incrementSSC();
short ciphertextLength=0;
if(hasDo87) {
// Copy the plain text to temporary buffer to avoid data corruption.
Util.arrayCopyNonAtomic(buffer, offset, tmp, (short) 0, length);
// Put the cipher text in the proper position.
ciphertextLength = cipher.doFinal(tmp, (short) 0, length, apdu,
do87HeaderBytes);
}
//sanity check
//note that this check
// (possiblyPaddedPlaintextLength != (short)(do87DataLen -1))
//does not always hold because some algs do the padding in the final, some in the init.
if (hasDo87 && (((short) (do87DataLen - 1) != ciphertextLength)))
ISOException.throwIt(SW_INTERNAL_ERROR);
if (hasDo87) {
// build do87
apdu[apdu_p++] = (byte) 0x87;
if(do87DataLen < 0x80) {
apdu[apdu_p++] = (byte)do87DataLen;
} else {
apdu[apdu_p++] = (byte) (0x80 + do87DataLenBytes);
for(short i = (short) (do87DataLenBytes - 1); i >= 0; i--) {
apdu[apdu_p++] = (byte) ((do87DataLen >>> (i * 8)) & 0xff);
}
}
apdu[apdu_p++] = 0x01;
}
if(hasDo87) {
apdu_p = do87Bytes;
}
// build do99
apdu[apdu_p++] = (byte) 0x99;
apdu[apdu_p++] = 0x02;
Util.setShort(apdu, apdu_p, status);
apdu_p += 2;
// calculate and write mac
signer.update(ssc, (short) 0, (short) ssc.length);
signer.sign(apdu, (short) 0, apdu_p, apdu, (short) (apdu_p + 2));
// write do8e
apdu[apdu_p++] = (byte) 0x8e;
apdu[apdu_p++] = 0x08;
apdu_p += 8; // for mac written earlier
return apdu_p;
}
/**
* Increment the send sequence counter.
*/
private void incrementSSC() {
if (ssc == null || ssc.length <= 0) {
return;
}
for (short s = (short) (ssc.length - 1); s >= 0; s--) {
if ((short) ((ssc[s] & 0xff) + 1) > 0xff) {
ssc[s] = 0;
} else {
ssc[s]++;
break;
}
}
}
/***
* Get the amount of space to reserve in the buffer when using secure
* messaging.
*
* @param length length of plain text in which this offset depends.
* @return the amount of space to reserve.
*/
private short getApduBufferOffset(short length) {
short do87Bytes = 2; // 0x87 length data 0x01
// smallest multiple of 8 strictly larger than plaintextLen + 1
// byte is probably the length of the cipher text (including do87 0x01)
short do87DataLen = (short) ((((short) (length + 8) / 8) * 8) + 1);
if (do87DataLen < 0x80) {
do87Bytes++;
} else if (do87DataLen <= 0xff) {
do87Bytes += 2;
} else {
do87Bytes += (short) (length > 0xff ? 2 : 1);
}
return do87Bytes;
}
/**
* Set the SSC
*
* @param buffer byte array containing the SSC
* @param offset location of the data in the buffer
*/
public void setSSC(byte[] buffer, short offset) {
Util.arrayCopy(buffer, offset, ssc, (short)0, SSC_SIZE);
ssc_set[0] = true;
}
/**
* @return size in bytes of the SSC
*/
public short getSSCSize() {
return SSC_SIZE;
}
/**
* @return boolean indicating whether SSC has been set
*/
public boolean isSetSSC() {
return ssc_set[0];
}
}

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src/openpgpcard/PGPKey.java Normal file
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@ -0,0 +1,249 @@
/**
* Java Card implementation of the OpenPGP card
* Copyright (C) 2011 Joeri de Ruiter
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package openpgpcard;
import javacard.framework.*;
import javacard.security.*;
/**
* @author Joeri de Ruiter (joeri@cs.ru.nl)
* @version $Revision: 12 $ by $Author: joeridr $
* $LastChangedDate: 2012-02-23 15:31:33 +0100 (Thu, 23 Feb 2012) $
*/
public class PGPKey implements ISO7816 {
public static final short KEY_SIZE = 2048;// 2368;
public static final short KEY_SIZE_BYTES = KEY_SIZE / 8;
public static final short EXPONENT_SIZE = 17;
public static final short EXPONENT_SIZE_BYTES = 3;
public static final short FP_SIZE = 20;
private KeyPair key;
private byte[] fp;
private byte[] time = { 0x00, 0x00, 0x00, 0x00 };
private byte[] attributes = { 0x01, 0x00, 0x00, 0x00, 0x00, 0x02 };
public PGPKey() {
key = new KeyPair(KeyPair.ALG_RSA_CRT, KEY_SIZE);
fp = new byte[FP_SIZE];
Util.arrayFillNonAtomic(fp, (short) 0, (short) fp.length, (byte) 0);
Util.setShort(attributes, (short) 1, KEY_SIZE);
Util.setShort(attributes, (short) 3, EXPONENT_SIZE);
}
/**
* Generate the key pair.
*/
public void genKeyPair() {
key.genKeyPair();
}
/**
* Set the fingerprint for the public key.
*
* @param data
* Byte array
* @param offset
* Offset within byte array containing first byte
*/
public void setFingerprint(byte[] data, short offset) {
// Check whether there are enough bytes to copy
if ((short) (offset + fp.length) > data.length)
ISOException.throwIt(SW_UNKNOWN);
Util.arrayCopy(data, offset, fp, (short) 0, (short) fp.length);
}
/**
* Set the generation time for the key pair.
*
* @param data
* Byte array
* @param offset
* Offset within byte array containing first byte
*/
public void setTime(byte[] data, short offset) {
// Check whether there are enough bytes to copy
if ((short) (offset + time.length) > data.length)
ISOException.throwIt(SW_UNKNOWN);
Util.arrayCopy(data, offset, time, (short) 0, (short) 4);
}
/**
* Get the fingerprint for the public key.
*
* @param data
* Byte array
* @param offset
* Offset within byte array indicating first byte
*/
public short getFingerprint(byte[] data, short offset) {
Util.arrayCopyNonAtomic(fp, (short) 0, data, offset, (short) fp.length);
return (short) (offset + fp.length);
}
/**
* Get the generation time for the key pair.
*
* @param data
* Byte array
* @param offset
* Offset within byte array indicating first byte
*/
public short getTime(byte[] data, short offset) {
Util.arrayCopyNonAtomic(time, (short) 0, data, offset,
(short) time.length);
return (short) (offset + time.length);
}
/**
* Get the algorithm attributes for the key pair.
*
* @param data
* Byte array
* @param offset
* Offset within byte array indicating first byte
*/
public short getAttributes(byte[] data, short offset) {
Util.arrayCopyNonAtomic(attributes, (short) 0, data, offset,
(short) attributes.length);
return (short) (offset + attributes.length);
}
/**
* @return Public key of the key pair
*/
public RSAPublicKey getPublic() {
return (RSAPublicKey) key.getPublic();
}
/**
* @return Private key of the key pair
*/
public RSAPrivateCrtKey getPrivate() {
return (RSAPrivateCrtKey) key.getPrivate();
}
/**
* @return Length in bytes of the exponent
*/
public short getExponentLength() {
// Fixed value of 65537 for exponent
return EXPONENT_SIZE_BYTES;
}
/**
* @return Length in bytes of the modulus
*/
public short getModulusLength() {
return KEY_SIZE_BYTES;
}
/**
* Sets the value of the DP1 parameter. The plain text data format is
* big-endian and right-aligned (the least significant bit is the least
* significant bit of last byte). Input DP1 parameter data is copied into
* the internal representation.
*
* @param buffer
* The input buffer
* @param offset
* The offset into the input buffer at which the parameter value
* begins
* @param length
* The length of the parameter
*/
public void setDP1(byte[] buffer, short offset, short length) {
((RSAPrivateCrtKey) key.getPrivate()).setDP1(buffer, offset, length);
}
/**
* Sets the value of the DQ1 parameter. The plain text data format is
* big-endian and right-aligned (the least significant bit is the least
* significant bit of last byte). Input DQ1 parameter data is copied into
* the internal representation.
*
* @param buffer
* The input buffer
* @param offset
* The offset into the input buffer at which the parameter value
* begins
* @param length
* The length of the parameter
*/
public void setDQ1(byte[] buffer, short offset, short length) {
((RSAPrivateCrtKey) key.getPrivate()).setDQ1(buffer, offset, length);
}
/**
* Sets the value of the P parameter. The plain text data format is
* big-endian and right-aligned (the least significant bit is the least
* significant bit of last byte). Input P parameter data is copied into the
* internal representation.
*
* @param buffer
* The input buffer
* @param offset
* The offset into the input buffer at which the parameter value
* begins
* @param length
* The length of the parameter
*/
public void setP(byte[] buffer, short offset, short length) {
((RSAPrivateCrtKey) key.getPrivate()).setP(buffer, offset, length);
}
/**
* Sets the value of the PQ parameter. The plain text data format is
* big-endian and right-aligned (the least significant bit is the least
* significant bit of last byte). Input PQ parameter data is copied into the
* internal representation.
*
* @param buffer
* The input buffer
* @param offset
* The offset into the input buffer at which the parameter value
* begins
* @param length
* The length of the parameter
*/
public void setPQ(byte[] buffer, short offset, short length) {
((RSAPrivateCrtKey) key.getPrivate()).setPQ(buffer, offset, length);
}
/**
* Sets the value of the Q parameter. The plain text data format is
* big-endian and right-aligned (the least significant bit is the least
* significant bit of last byte). Input Q parameter data is copied into the
* internal representation.
*
* @param buffer
* The input buffer
* @param offset
* The offset into the input buffer at which the parameter value
* begins
* @param length
* The length of the parameter
*/
public void setQ(byte[] buffer, short offset, short length) {
((RSAPrivateCrtKey) key.getPrivate()).setQ(buffer, offset, length);
}
}