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package org.spongycastle.bcpg;
import java.io.IOException;
import java.io.OutputStream;
/**
* Basic type for a PGP Signature sub-packet.
*/
public class SignatureSubpacket
{
int type;
boolean critical;
protected byte[] data;
protected SignatureSubpacket(
int type,
boolean critical,
byte[] data)
{
this.type = type;
this.critical = critical;
this.data = data;
}
public int getType()
{
return type;
}
public boolean isCritical()
{
return critical;
}
/**
* return the generic data making up the packet.
*/
public byte[] getData()
{
return data;
}
public void encode(
OutputStream out)
throws IOException
{
int bodyLen = data.length + 1;
if (bodyLen < 192)
{
out.write((byte)bodyLen);
}
else if (bodyLen <= 8383)
{
bodyLen -= 192;
out.write((byte)(((bodyLen >> 8) & 0xff) + 192));
out.write((byte)bodyLen);
}
else
{
out.write(0xff);
out.write((byte)(bodyLen >> 24));
out.write((byte)(bodyLen >> 16));
out.write((byte)(bodyLen >> 8));
out.write((byte)bodyLen);
}
if (critical)
{
out.write(0x80 | type);
}
else
{
out.write(type);
}
out.write(data);
}
}
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