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Diffstat (limited to 'src/main/model/asn1/OctetString.java')
-rw-r--r-- | src/main/model/asn1/OctetString.java | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/main/model/asn1/OctetString.java b/src/main/model/asn1/OctetString.java new file mode 100644 index 0000000..b552e52 --- /dev/null +++ b/src/main/model/asn1/OctetString.java @@ -0,0 +1,47 @@ +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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