/** * Computes RFC 2104-compliant HMAC signature. * * @param data the data to be signed * @param token the token * @return signature * @see <a href="http://oauth.net/core/1.0a/#rfc.section.9.2.1">OAuth Core - 9.2.1. Generating * Signature</a> */ /*package*/ String generateSignature(String data, OAuthToken token) { byte[] byteHMAC = null; try { Mac mac = Mac.getInstance(HMAC_SHA1); SecretKeySpec spec; if (null == token) { String oauthSignature = encode(consumerSecret) + "&"; spec = new SecretKeySpec(oauthSignature.getBytes(), HMAC_SHA1); } else { spec = token.getSecretKeySpec(); if (null == spec) { String oauthSignature = encode(consumerSecret) + "&" + encode(token.getTokenSecret()); spec = new SecretKeySpec(oauthSignature.getBytes(), HMAC_SHA1); token.setSecretKeySpec(spec); } } mac.init(spec); byteHMAC = mac.doFinal(data.getBytes()); } catch (InvalidKeyException e) { e.printStackTrace(); } catch (NoSuchAlgorithmException ignore) { // should never happen } return BASE64Encoder.encode(byteHMAC); }
/** * Computes RFC 2104-compliant HMAC signature. * * @param data the data to be signed * @param token the token * @return signature * @see <a href="http://oauth.net/core/1.0a/#rfc.section.9.2.1">OAuth Core - 9.2.1. Generating * Signature</a> */ /* package */ String generateSignature(final String data, final OAuthToken token) { byte[] byteHMAC = null; try { final Mac mac = Mac.getInstance(HMAC_SHA1); SecretKeySpec spec; if (null == token) { final String oauthSignature = HttpParameter.encode(consumerSecret) + "&"; spec = new SecretKeySpec(oauthSignature.getBytes(), HMAC_SHA1); } else { spec = token.getSecretKeySpec(); if (null == spec) { final String oauthSignature = HttpParameter.encode(consumerSecret) + "&" + HttpParameter.encode(token.getTokenSecret()); spec = new SecretKeySpec(oauthSignature.getBytes(), HMAC_SHA1); token.setSecretKeySpec(spec); } } mac.init(spec); byteHMAC = mac.doFinal(data.getBytes()); } catch (final InvalidKeyException ike) { logger.error("Failed initialize \"Message Authentication Code\" (MAC)", ike); throw new AssertionError(ike); } catch (final NoSuchAlgorithmException nsae) { logger.error("Failed to get HmacSHA1 \"Message Authentication Code\" (MAC)", nsae); throw new AssertionError(nsae); } return BASE64Encoder.encode(byteHMAC); }