import org.onap.aaf.cadi.Hash;
public class AAFToken {
- private static final int CAPACITY = (Long.SIZE*2+Byte.SIZE*3)/8;
- private static final SecureRandom sr = new SecureRandom();
+ private static final int CAPACITY = (Long.SIZE*2+Byte.SIZE*3)/8;
+ private static final SecureRandom sr = new SecureRandom();
- public static final String toToken(UUID uuid) {
- long lsb = uuid.getLeastSignificantBits();
- long msb = uuid.getMostSignificantBits();
- int sum=35; // AAF
- for(int i=0;i<Long.SIZE;i+=8) {
- sum+=((lsb>>i) & 0xFF);
- }
- for(int i=0;i<Long.SIZE;i+=8) {
- sum+=((((msb>>i) & 0xFF))<<0xB);
- }
- sum+=(sr.nextInt()&0xEFC00000); // this is just to not leave zeros laying around
+ public static final String toToken(UUID uuid) {
+ long lsb = uuid.getLeastSignificantBits();
+ long msb = uuid.getMostSignificantBits();
+ int sum=35; // AAF
+ for(int i=0;i<Long.SIZE;i+=8) {
+ sum+=((lsb>>i) & 0xFF);
+ }
+ for(int i=0;i<Long.SIZE;i+=8) {
+ sum+=((((msb>>i) & 0xFF))<<0xB);
+ }
+ sum+=(sr.nextInt()&0xEFC00000); // this is just to not leave zeros laying around
- ByteBuffer bb = ByteBuffer.allocate(CAPACITY);
- bb.put((byte)sum);
- bb.putLong(msb);
- bb.put((byte)(sum>>8));
- bb.putLong(lsb);
- bb.put((byte)(sum>>16));
- return Hash.toHexNo0x(bb.array());
- }
+ ByteBuffer bb = ByteBuffer.allocate(CAPACITY);
+ bb.put((byte)sum);
+ bb.putLong(msb);
+ bb.put((byte)(sum>>8));
+ bb.putLong(lsb);
+ bb.put((byte)(sum>>16));
+ return Hash.toHexNo0x(bb.array());
+ }
- public static final UUID fromToken(String token) {
- byte[] bytes = Hash.fromHexNo0x(token);
- if(bytes==null) {
- return null;
- }
- ByteBuffer bb = ByteBuffer.wrap(bytes);
- if(bb.capacity()!=CAPACITY ) {
- return null; // not a CADI Token
- }
- byte b1 = bb.get();
- long msb = bb.getLong();
- byte b2 = bb.get();
- long lsb = bb.getLong();
- byte b3 = (byte)(0x3F&bb.get());
- int sum=35;
-
- for(int i=0;i<Long.SIZE;i+=8) {
- sum+=((lsb>>i) & 0xFF);
- }
- for(int i=0;i<Long.SIZE;i+=8) {
- sum+=((((msb>>i) & 0xFF))<<0xB);
- }
+ public static final UUID fromToken(String token) {
+ byte[] bytes = Hash.fromHexNo0x(token);
+ if(bytes==null) {
+ return null;
+ }
+ ByteBuffer bb = ByteBuffer.wrap(bytes);
+ if(bb.capacity()!=CAPACITY ) {
+ return null; // not a CADI Token
+ }
+ byte b1 = bb.get();
+ long msb = bb.getLong();
+ byte b2 = bb.get();
+ long lsb = bb.getLong();
+ byte b3 = (byte)(0x3F&bb.get());
+ int sum=35;
+
+ for(int i=0;i<Long.SIZE;i+=8) {
+ sum+=((lsb>>i) & 0xFF);
+ }
+ for(int i=0;i<Long.SIZE;i+=8) {
+ sum+=((((msb>>i) & 0xFF))<<0xB);
+ }
- if(b1!=((byte)sum) ||
- b2!=((byte)(sum>>8)) ||
- b3!=((byte)((sum>>16)))) {
- return null; // not a CADI Token
- }
- return new UUID(msb, lsb);
- }
-
+ if(b1!=((byte)sum) ||
+ b2!=((byte)(sum>>8)) ||
+ b3!=((byte)((sum>>16)))) {
+ return null; // not a CADI Token
+ }
+ return new UUID(msb, lsb);
+ }
+
}