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package model.asn1;
import model.asn1.exceptions.ParseException;
import model.asn1.parsing.BytesReader;
/**
* Represents the ASN.1 OCTET STRING type. An OCTET STRING is just a sequence of bytes.
*/
public class OctetString extends ASN1Object {
/**
* The X.680 universal class tag assignment.
*/
public static final Tag TAG = new Tag(TagClass.UNIVERSAL, false, 0x4);
private final Byte[] bytes;
/**
* EFFECTS: Initiate the OctetString object with the given bytes array. The byte array can be arbitrary.
* REQUIRES: For the requirements of tag and parentTag, consult {@link ASN1Object}.
*/
public OctetString(Tag tag, Tag parentTag, Byte[] bytes) {
super(tag, parentTag);
this.bytes = bytes;
}
/**
* EFFECTS: Parse tags and value from user input. Tags are parsed as-per {@link ASN1Object}.
* Throws {@link ParseException} if the encoded data is invalid, see {@link ASN1Object}.
* MODIFIES: this, encoded
*/
public OctetString(BytesReader encoded, boolean hasParentTag) throws ParseException {
super(encoded, hasParentTag);
this.bytes = encoded.require(getLength(), true);
}
/**
* EFFECTS: Get the value bytes ready to encode into DER.
*/
@Override
public Byte[] encodeValueDER() {
return bytes;
}
public Byte[] getBytes() {
return bytes;
}
}
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