private Hash getHash(String name) {
   String key = name.substring(PREFIX.length());
   key = key.substring(0, 44);
   // Hash h = new Hash();
   try {
     // h.fromBase64(key);
     byte[] b = Base64.decode(key);
     if (b == null) return null;
     Hash h = Hash.create(b);
     return h;
   } catch (Exception dfe) {
     _log.warn("Invalid base64 [" + key + "]", dfe);
     return null;
   }
 }
Exemple #2
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 /** Verify with the "olddest" property's public key using the "oldsig" property */
 public boolean hasValidInnerSig() {
   if (props == null || name == null || dest == null) return false;
   boolean rv = false;
   // don't cache result
   if (true) {
     StringWriter buf = new StringWriter(1024);
     String sig = props.getProperty(PROP_OLDSIG);
     String olddest = props.getProperty(PROP_OLDDEST);
     if (sig == null || olddest == null) return false;
     buf.append(name);
     buf.append(KV_SEPARATOR);
     buf.append(dest);
     try {
       writeProps(buf, true, true);
     } catch (IOException ioe) {
       // won't happen
       return false;
     }
     byte[] sdata = Base64.decode(sig);
     if (sdata == null) return false;
     Destination d;
     try {
       d = new Destination(olddest);
     } catch (DataFormatException dfe) {
       return false;
     }
     SigningPublicKey spk = d.getSigningPublicKey();
     SigType type = spk.getType();
     if (type == null) return false;
     Signature s;
     try {
       s = new Signature(type, sdata);
     } catch (IllegalArgumentException iae) {
       return false;
     }
     rv = DSAEngine.getInstance().verifySignature(s, DataHelper.getUTF8(buf.toString()), spk);
   }
   return rv;
 }