diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/DERApplicationSpecific.java')
| -rw-r--r-- | core/src/main/java/org/bouncycastle/asn1/DERApplicationSpecific.java | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/DERApplicationSpecific.java b/core/src/main/java/org/bouncycastle/asn1/DERApplicationSpecific.java deleted file mode 100644 index 85d9843b..00000000 --- a/core/src/main/java/org/bouncycastle/asn1/DERApplicationSpecific.java +++ /dev/null @@ -1,267 +0,0 @@ -package org.bouncycastle.asn1; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; - -import org.bouncycastle.util.Arrays; - -/** - * Base class for an application specific object - */ -public class DERApplicationSpecific - extends ASN1Primitive -{ - private final boolean isConstructed; - private final int tag; - private final byte[] octets; - - DERApplicationSpecific( - boolean isConstructed, - int tag, - byte[] octets) - { - this.isConstructed = isConstructed; - this.tag = tag; - this.octets = octets; - } - - public DERApplicationSpecific( - int tag, - byte[] octets) - { - this(false, tag, octets); - } - - public DERApplicationSpecific( - int tag, - ASN1Encodable object) - throws IOException - { - this(true, tag, object); - } - - public DERApplicationSpecific( - boolean explicit, - int tag, - ASN1Encodable object) - throws IOException - { - ASN1Primitive primitive = object.toASN1Primitive(); - - byte[] data = primitive.getEncoded(ASN1Encoding.DER); - - this.isConstructed = explicit || (primitive instanceof ASN1Set || primitive instanceof ASN1Sequence); - this.tag = tag; - - if (explicit) - { - this.octets = data; - } - else - { - int lenBytes = getLengthOfHeader(data); - byte[] tmp = new byte[data.length - lenBytes]; - System.arraycopy(data, lenBytes, tmp, 0, tmp.length); - this.octets = tmp; - } - } - - public DERApplicationSpecific(int tagNo, ASN1EncodableVector vec) - { - this.tag = tagNo; - this.isConstructed = true; - ByteArrayOutputStream bOut = new ByteArrayOutputStream(); - - for (int i = 0; i != vec.size(); i++) - { - try - { - bOut.write(((ASN1Object)vec.get(i)).getEncoded(ASN1Encoding.DER)); - } - catch (IOException e) - { - throw new ASN1ParsingException("malformed object: " + e, e); - } - } - this.octets = bOut.toByteArray(); - } - - public static DERApplicationSpecific getInstance(Object obj) - { - if (obj == null || obj instanceof DERApplicationSpecific) - { - return (DERApplicationSpecific)obj; - } - else if (obj instanceof byte[]) - { - try - { - return DERApplicationSpecific.getInstance(ASN1Primitive.fromByteArray((byte[])obj)); - } - catch (IOException e) - { - throw new IllegalArgumentException("failed to construct object from byte[]: " + e.getMessage()); - } - } - - throw new IllegalArgumentException("unknown object in getInstance: " + obj.getClass().getName()); - } - - private int getLengthOfHeader(byte[] data) - { - int length = data[1] & 0xff; // TODO: assumes 1 byte tag - - if (length == 0x80) - { - return 2; // indefinite-length encoding - } - - if (length > 127) - { - int size = length & 0x7f; - - // Note: The invalid long form "0xff" (see X.690 8.1.3.5c) will be caught here - if (size > 4) - { - throw new IllegalStateException("DER length more than 4 bytes: " + size); - } - - return size + 2; - } - - return 2; - } - - public boolean isConstructed() - { - return isConstructed; - } - - public byte[] getContents() - { - return octets; - } - - public int getApplicationTag() - { - return tag; - } - - /** - * Return the enclosed object assuming explicit tagging. - * - * @return the resulting object - * @throws IOException if reconstruction fails. - */ - public ASN1Primitive getObject() - throws IOException - { - return new ASN1InputStream(getContents()).readObject(); - } - - /** - * Return the enclosed object assuming implicit tagging. - * - * @param derTagNo the type tag that should be applied to the object's contents. - * @return the resulting object - * @throws IOException if reconstruction fails. - */ - public ASN1Primitive getObject(int derTagNo) - throws IOException - { - if (derTagNo >= 0x1f) - { - throw new IOException("unsupported tag number"); - } - - byte[] orig = this.getEncoded(); - byte[] tmp = replaceTagNumber(derTagNo, orig); - - if ((orig[0] & BERTags.CONSTRUCTED) != 0) - { - tmp[0] |= BERTags.CONSTRUCTED; - } - - return new ASN1InputStream(tmp).readObject(); - } - - int encodedLength() - throws IOException - { - return StreamUtil.calculateTagLength(tag) + StreamUtil.calculateBodyLength(octets.length) + octets.length; - } - - /* (non-Javadoc) - * @see org.bouncycastle.asn1.ASN1Primitive#encode(org.bouncycastle.asn1.DEROutputStream) - */ - void encode(ASN1OutputStream out) throws IOException - { - int classBits = BERTags.APPLICATION; - if (isConstructed) - { - classBits |= BERTags.CONSTRUCTED; - } - - out.writeEncoded(classBits, tag, octets); - } - - boolean asn1Equals( - ASN1Primitive o) - { - if (!(o instanceof DERApplicationSpecific)) - { - return false; - } - - DERApplicationSpecific other = (DERApplicationSpecific)o; - - return isConstructed == other.isConstructed - && tag == other.tag - && Arrays.areEqual(octets, other.octets); - } - - public int hashCode() - { - return (isConstructed ? 1 : 0) ^ tag ^ Arrays.hashCode(octets); - } - - private byte[] replaceTagNumber(int newTag, byte[] input) - throws IOException - { - int tagNo = input[0] & 0x1f; - int index = 1; - // - // with tagged object tag number is bottom 5 bits, or stored at the start of the content - // - if (tagNo == 0x1f) - { - tagNo = 0; - - int b = input[index++] & 0xff; - - // X.690-0207 8.1.2.4.2 - // "c) bits 7 to 1 of the first subsequent octet shall not all be zero." - if ((b & 0x7f) == 0) // Note: -1 will pass - { - throw new ASN1ParsingException("corrupted stream - invalid high tag number found"); - } - - while ((b >= 0) && ((b & 0x80) != 0)) - { - tagNo |= (b & 0x7f); - tagNo <<= 7; - b = input[index++] & 0xff; - } - - tagNo |= (b & 0x7f); - } - - byte[] tmp = new byte[input.length - index + 1]; - - System.arraycopy(input, index, tmp, 1, tmp.length - 1); - - tmp[0] = (byte)newTag; - - return tmp; - } -} |