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path: root/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java
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Diffstat (limited to 'core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java')
-rw-r--r--core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java472
1 files changed, 0 insertions, 472 deletions
diff --git a/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java b/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java
deleted file mode 100644
index 4de41b75..00000000
--- a/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.java
+++ /dev/null
@@ -1,472 +0,0 @@
-package org.bouncycastle.asn1;
-
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.math.BigInteger;
-
-import org.bouncycastle.util.Arrays;
-
-/**
- * Class representing the ASN.1 OBJECT IDENTIFIER type.
- */
-public class ASN1ObjectIdentifier
- extends ASN1Primitive
-{
- String identifier;
-
- private byte[] body;
-
- /**
- * return an OID from the passed in object
- * @param obj an ASN1ObjectIdentifier or an object that can be converted into one.
- * @throws IllegalArgumentException if the object cannot be converted.
- * @return an ASN1ObjectIdentifier instance, or null.
- */
- public static ASN1ObjectIdentifier getInstance(
- Object obj)
- {
- if (obj == null || obj instanceof ASN1ObjectIdentifier)
- {
- return (ASN1ObjectIdentifier)obj;
- }
-
- if (obj instanceof ASN1Encodable && ((ASN1Encodable)obj).toASN1Primitive() instanceof ASN1ObjectIdentifier)
- {
- return (ASN1ObjectIdentifier)((ASN1Encodable)obj).toASN1Primitive();
- }
-
- if (obj instanceof byte[])
- {
- byte[] enc = (byte[])obj;
- try
- {
- return (ASN1ObjectIdentifier)fromByteArray(enc);
- }
- catch (IOException e)
- {
- throw new IllegalArgumentException("failed to construct object identifier from byte[]: " + e.getMessage());
- }
- }
-
- throw new IllegalArgumentException("illegal object in getInstance: " + obj.getClass().getName());
- }
-
- /**
- * return an Object Identifier from a tagged object.
- *
- * @param obj the tagged object holding the object we want
- * @param explicit true if the object is meant to be explicitly
- * tagged false otherwise.
- * @throws IllegalArgumentException if the tagged object cannot
- * be converted.
- * @return an ASN1ObjectIdentifier instance, or null.
- */
- public static ASN1ObjectIdentifier getInstance(
- ASN1TaggedObject obj,
- boolean explicit)
- {
- ASN1Primitive o = obj.getObject();
-
- if (explicit || o instanceof ASN1ObjectIdentifier)
- {
- return getInstance(o);
- }
- else
- {
- return ASN1ObjectIdentifier.fromOctetString(ASN1OctetString.getInstance(obj.getObject()).getOctets());
- }
- }
-
- private static final long LONG_LIMIT = (Long.MAX_VALUE >> 7) - 0x7f;
-
- ASN1ObjectIdentifier(
- byte[] bytes)
- {
- StringBuffer objId = new StringBuffer();
- long value = 0;
- BigInteger bigValue = null;
- boolean first = true;
-
- for (int i = 0; i != bytes.length; i++)
- {
- int b = bytes[i] & 0xff;
-
- if (value <= LONG_LIMIT)
- {
- value += (b & 0x7f);
- if ((b & 0x80) == 0) // end of number reached
- {
- if (first)
- {
- if (value < 40)
- {
- objId.append('0');
- }
- else if (value < 80)
- {
- objId.append('1');
- value -= 40;
- }
- else
- {
- objId.append('2');
- value -= 80;
- }
- first = false;
- }
-
- objId.append('.');
- objId.append(value);
- value = 0;
- }
- else
- {
- value <<= 7;
- }
- }
- else
- {
- if (bigValue == null)
- {
- bigValue = BigInteger.valueOf(value);
- }
- bigValue = bigValue.or(BigInteger.valueOf(b & 0x7f));
- if ((b & 0x80) == 0)
- {
- if (first)
- {
- objId.append('2');
- bigValue = bigValue.subtract(BigInteger.valueOf(80));
- first = false;
- }
-
- objId.append('.');
- objId.append(bigValue);
- bigValue = null;
- value = 0;
- }
- else
- {
- bigValue = bigValue.shiftLeft(7);
- }
- }
- }
-
- this.identifier = objId.toString();
- this.body = Arrays.clone(bytes);
- }
-
- /**
- * Create an OID based on the passed in String.
- *
- * @param identifier a string representation of an OID.
- */
- public ASN1ObjectIdentifier(
- String identifier)
- {
- if (identifier == null)
- {
- throw new IllegalArgumentException("'identifier' cannot be null");
- }
- if (!isValidIdentifier(identifier))
- {
- throw new IllegalArgumentException("string " + identifier + " not an OID");
- }
-
- this.identifier = identifier;
- }
-
- /**
- * Create an OID that creates a branch under the current one.
- *
- * @param branchID node numbers for the new branch.
- * @return the OID for the new created branch.
- */
- ASN1ObjectIdentifier(ASN1ObjectIdentifier oid, String branchID)
- {
- if (!isValidBranchID(branchID, 0))
- {
- throw new IllegalArgumentException("string " + branchID + " not a valid OID branch");
- }
-
- this.identifier = oid.getId() + "." + branchID;
- }
-
- /**
- * Return the OID as a string.
- *
- * @return the string representation of the OID carried by this object.
- */
- public String getId()
- {
- return identifier;
- }
-
- /**
- * Return an OID that creates a branch under the current one.
- *
- * @param branchID node numbers for the new branch.
- * @return the OID for the new created branch.
- */
- public ASN1ObjectIdentifier branch(String branchID)
- {
- return new ASN1ObjectIdentifier(this, branchID);
- }
-
- /**
- * Return true if this oid is an extension of the passed in branch, stem.
- *
- * @param stem the arc or branch that is a possible parent.
- * @return true if the branch is on the passed in stem, false otherwise.
- */
- public boolean on(ASN1ObjectIdentifier stem)
- {
- String id = getId(), stemId = stem.getId();
- return id.length() > stemId.length() && id.charAt(stemId.length()) == '.' && id.startsWith(stemId);
- }
-
- private void writeField(
- ByteArrayOutputStream out,
- long fieldValue)
- {
- byte[] result = new byte[9];
- int pos = 8;
- result[pos] = (byte)((int)fieldValue & 0x7f);
- while (fieldValue >= (1L << 7))
- {
- fieldValue >>= 7;
- result[--pos] = (byte)((int)fieldValue & 0x7f | 0x80);
- }
- out.write(result, pos, 9 - pos);
- }
-
- private void writeField(
- ByteArrayOutputStream out,
- BigInteger fieldValue)
- {
- int byteCount = (fieldValue.bitLength() + 6) / 7;
- if (byteCount == 0)
- {
- out.write(0);
- }
- else
- {
- BigInteger tmpValue = fieldValue;
- byte[] tmp = new byte[byteCount];
- for (int i = byteCount - 1; i >= 0; i--)
- {
- tmp[i] = (byte)((tmpValue.intValue() & 0x7f) | 0x80);
- tmpValue = tmpValue.shiftRight(7);
- }
- tmp[byteCount - 1] &= 0x7f;
- out.write(tmp, 0, tmp.length);
- }
- }
-
- private void doOutput(ByteArrayOutputStream aOut)
- {
- OIDTokenizer tok = new OIDTokenizer(identifier);
- int first = Integer.parseInt(tok.nextToken()) * 40;
-
- String secondToken = tok.nextToken();
- if (secondToken.length() <= 18)
- {
- writeField(aOut, first + Long.parseLong(secondToken));
- }
- else
- {
- writeField(aOut, new BigInteger(secondToken).add(BigInteger.valueOf(first)));
- }
-
- while (tok.hasMoreTokens())
- {
- String token = tok.nextToken();
- if (token.length() <= 18)
- {
- writeField(aOut, Long.parseLong(token));
- }
- else
- {
- writeField(aOut, new BigInteger(token));
- }
- }
- }
-
- protected synchronized byte[] getBody()
- {
- if (body == null)
- {
- ByteArrayOutputStream bOut = new ByteArrayOutputStream();
-
- doOutput(bOut);
-
- body = bOut.toByteArray();
- }
-
- return body;
- }
-
- boolean isConstructed()
- {
- return false;
- }
-
- int encodedLength()
- throws IOException
- {
- int length = getBody().length;
-
- return 1 + StreamUtil.calculateBodyLength(length) + length;
- }
-
- void encode(
- ASN1OutputStream out)
- throws IOException
- {
- byte[] enc = getBody();
-
- out.write(BERTags.OBJECT_IDENTIFIER);
- out.writeLength(enc.length);
- out.write(enc);
- }
-
- public int hashCode()
- {
- return identifier.hashCode();
- }
-
- boolean asn1Equals(
- ASN1Primitive o)
- {
- if (!(o instanceof ASN1ObjectIdentifier))
- {
- return false;
- }
-
- return identifier.equals(((ASN1ObjectIdentifier)o).identifier);
- }
-
- public String toString()
- {
- return getId();
- }
-
- private static boolean isValidBranchID(
- String branchID, int start)
- {
- boolean periodAllowed = false;
-
- int pos = branchID.length();
- while (--pos >= start)
- {
- char ch = branchID.charAt(pos);
-
- // TODO Leading zeroes?
- if ('0' <= ch && ch <= '9')
- {
- periodAllowed = true;
- continue;
- }
-
- if (ch == '.')
- {
- if (!periodAllowed)
- {
- return false;
- }
-
- periodAllowed = false;
- continue;
- }
-
- return false;
- }
-
- return periodAllowed;
- }
-
- private static boolean isValidIdentifier(
- String identifier)
- {
- if (identifier.length() < 3 || identifier.charAt(1) != '.')
- {
- return false;
- }
-
- char first = identifier.charAt(0);
- if (first < '0' || first > '2')
- {
- return false;
- }
-
- return isValidBranchID(identifier, 2);
- }
-
- private static ASN1ObjectIdentifier[][] cache = new ASN1ObjectIdentifier[256][];
-
- static ASN1ObjectIdentifier fromOctetString(byte[] enc)
- {
- if (enc.length < 3)
- {
- return new ASN1ObjectIdentifier(enc);
- }
-
- int idx1 = enc[enc.length - 2] & 0xff;
- // in this case top bit is always zero
- int idx2 = enc[enc.length - 1] & 0x7f;
-
- ASN1ObjectIdentifier possibleMatch;
-
- synchronized (cache)
- {
- ASN1ObjectIdentifier[] first = cache[idx1];
- if (first == null)
- {
- first = cache[idx1] = new ASN1ObjectIdentifier[128];
- }
-
- possibleMatch = first[idx2];
- if (possibleMatch == null)
- {
- return first[idx2] = new ASN1ObjectIdentifier(enc);
- }
-
- if (Arrays.areEqual(enc, possibleMatch.getBody()))
- {
- return possibleMatch;
- }
-
- idx1 = (idx1 + 1) & 0xff;
- first = cache[idx1];
- if (first == null)
- {
- first = cache[idx1] = new ASN1ObjectIdentifier[128];
- }
-
- possibleMatch = first[idx2];
- if (possibleMatch == null)
- {
- return first[idx2] = new ASN1ObjectIdentifier(enc);
- }
-
- if (Arrays.areEqual(enc, possibleMatch.getBody()))
- {
- return possibleMatch;
- }
-
- idx2 = (idx2 + 1) & 0x7f;
- possibleMatch = first[idx2];
- if (possibleMatch == null)
- {
- return first[idx2] = new ASN1ObjectIdentifier(enc);
- }
- }
-
- if (Arrays.areEqual(enc, possibleMatch.getBody()))
- {
- return possibleMatch;
- }
-
- return new ASN1ObjectIdentifier(enc);
- }
-}
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