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; } }
/** 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; }