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Copy pathIssuerPublicKey.java
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82 lines (69 loc) · 2.54 KB
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/*
* Copyright 2010 sasc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package sasc.emv;
import java.io.PrintWriter;
import java.io.StringWriter;
import sasc.util.Log;
import sasc.util.Util;
/**
*
* @author sasc
*/
public class IssuerPublicKey {
private byte[] exponent = new byte[0];
private byte[] modulus = new byte[0];
private byte[] remainder = new byte[0];
public IssuerPublicKey(){
}
public void setExponent(byte[] exp){
this.exponent = exp;
}
public void setModulus(byte[] mod){
this.modulus = mod;
}
public void setRemainder(byte[] remainder){
this.remainder = remainder;
}
public int getKeyLengthInBytes(){
return modulus.length+remainder.length;
}
public byte[] getExponent(){
byte[] exponentCopy = new byte[exponent.length];
System.arraycopy(exponent, 0, exponentCopy, 0, exponent.length);
return exponentCopy;
}
public byte[] getModulus(){
byte[] modulusCopy = new byte[modulus.length+remainder.length];
System.arraycopy(modulus, 0, modulusCopy, 0, modulus.length);
System.arraycopy(remainder, 0, modulusCopy, modulus.length, remainder.length);
return modulusCopy;
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
dump(new PrintWriter(sw), 0);
return sw.toString();
}
public void dump(PrintWriter pw, int indent) {
pw.println(Util.getSpaces(indent) + "Issuer Public Key");
String indentStr = Util.getSpaces(indent + Log.INDENT_SIZE);
pw.println(indentStr + "Length: "+getKeyLengthInBytes()*8+"bit");
pw.println(indentStr + "Exponent:");
pw.println(indentStr + Util.getSpaces(Log.INDENT_SIZE) + Util.prettyPrintHex(Util.byteArrayToHexString(getExponent()), indent+Log.INDENT_SIZE*2));
pw.println(indentStr + "Modulus:");
pw.println(indentStr + Util.getSpaces(Log.INDENT_SIZE) + Util.prettyPrintHex(Util.byteArrayToHexString(getModulus()), indent+Log.INDENT_SIZE*2));
}
}