diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/se/leap/leapclient/ConfigHelper.java | 2 | ||||
-rw-r--r-- | src/se/leap/leapclient/ProviderAPI.java | 110 |
2 files changed, 51 insertions, 61 deletions
diff --git a/src/se/leap/leapclient/ConfigHelper.java b/src/se/leap/leapclient/ConfigHelper.java index 41364e9..b263c53 100644 --- a/src/se/leap/leapclient/ConfigHelper.java +++ b/src/se/leap/leapclient/ConfigHelper.java @@ -37,7 +37,7 @@ public class ConfigHelper { final public static String eip_service_api_path = "/config/eip-service.json"; final public static String NG_1024 = - "EEAF0AB9ADB38DD69C33F80AFA8FC5E86072618775FF3C0B9EA2314C9C256576D674DF7496EA81D3383B4813D692C6E0E0D5D8E250B98BE48E495C1D6089DAD15DC7D7B46154D6B6CE8EF4AD69B15D4982559B297BCF1885C529F566660E57EC68EDBC3C05726CC02FD4CBF4976EAA9AFD5138FE8376435B9FC61D2FC0EB06E3"; + "eeaf0ab9adb38dd69c33f80afa8fc5e86072618775ff3c0b9ea2314c9c256576d674df7496ea81d3383b4813d692c6e0e0d5d8e250b98be48e495c1d6089dad15dc7d7b46154d6b6ce8ef4ad69b15d4982559b297bcf1885c529f566660e57ec68edbc3c05726cc02fd4cbf4976eaa9afd5138fe8376435b9fc61d2fc0eb06e3"; final public static BigInteger g = BigInteger.valueOf(2); final public static int CUSTOM_PROVIDER_ADDED = 0; diff --git a/src/se/leap/leapclient/ProviderAPI.java b/src/se/leap/leapclient/ProviderAPI.java index 41612d1..e2af08e 100644 --- a/src/se/leap/leapclient/ProviderAPI.java +++ b/src/se/leap/leapclient/ProviderAPI.java @@ -21,6 +21,7 @@ import org.apache.http.HttpResponse; import org.apache.http.client.ClientProtocolException; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.methods.HttpPost; +import org.apache.http.client.methods.HttpPut; import org.apache.http.cookie.Cookie; import org.apache.http.impl.client.DefaultHttpClient; import org.json.JSONException; @@ -123,7 +124,7 @@ public class ProviderAPI extends IntentService { verifier_generator.init(ng_1024, ConfigHelper.g, new SHA256Digest()); BigInteger verifier = verifier_generator.generateVerifier(salt_in_bytes, username.getBytes(), password.getBytes()); - return sendRegisterMessage(authentication_server, salt.toString(16), verifier.toString(), username); + return sendRegisterMessage(authentication_server, salt.toString(16), verifier.toString(16), username); } private boolean sendRegisterMessage(String server_url, String password_salt, String password_verifier, String login) { @@ -137,10 +138,11 @@ public class ProviderAPI extends IntentService { HttpEntity responseEntity = getResponse.getEntity(); String plain_response = new Scanner(responseEntity.getContent()).useDelimiter("\\A").next(); JSONObject json_response = new JSONObject(plain_response); - if(!json_response.getString("errors").isEmpty()) { + if(!json_response.isNull("errors") || json_response.has("errors")) { return false; } - else if(json_response.getString("password_salt").equalsIgnoreCase(password_salt) && json_response.getString("login").equalsIgnoreCase(login)) + //else if(json_response.getString("password_salt").equalsIgnoreCase(password_salt) && json_response.getString("login").equalsIgnoreCase(login)) + else if(json_response.getBoolean("ok") && json_response.getString("login").equalsIgnoreCase(login)) return true; } catch (ClientProtocolException e) { // TODO Auto-generated catch block @@ -163,30 +165,31 @@ public class ProviderAPI extends IntentService { String username = (String) task.get(ConfigHelper.username_key); String password = (String) task.get(ConfigHelper.password_key); String authentication_server = (String) task.get(ConfigHelper.srp_server_url_key); + SRP6Client srp_client = new SRP6Client(); - srp_client.init(new BigInteger(ConfigHelper.NG_1024, 16), ConfigHelper.g, new SHA256Digest(), new SecureRandom()); - // Receive salt from server - Random random_number_generator = new Random(); - BigInteger ng_1024 = new BigInteger(ConfigHelper.NG_1024, 16); - byte[] salt_in_bytes = ng_1024.probablePrime(1024, null).toByteArray(); - //int salt = random_number_generator.nextInt(Integer.parseInt(ConfigHelper.NG_1024, 16)); - //byte[] salt_in_bytes = ByteBuffer.allocate(4).putInt(salt).array(); - BigInteger clientA = srp_client.generateClientCredentials(salt_in_bytes, username.getBytes(), password.getBytes()); - //Send A to the server. Doing a http response with cookies? - //Receive server generated serverB + BigInteger n = new BigInteger(ConfigHelper.NG_1024, 16); + srp_client.init(n, ConfigHelper.g, new SHA256Digest(), new SecureRandom()); + + BigInteger salt = BigInteger.probablePrime(1024, null); + BigInteger clientA = srp_client.generateClientCredentials(salt.toByteArray(), username.getBytes(), password.getBytes()); try { BigInteger serverB = sendAToSRPServer(authentication_server, username, clientA); if(serverB == BigInteger.ZERO) return false; // TODO Show error: error trying to start authentication with provider + BigInteger s = srp_client.calculateSecret(serverB); - MessageDigest digest_of_S = MessageDigest.getInstance("SHA-256"); - digest_of_S.update(s.toByteArray(), 0, s.toByteArray().length); - BigInteger k = new BigInteger(digest_of_S.digest()); - BigInteger m1 = generateM1(k, clientA, serverB, username); - BigInteger m2 = sendM1ToSRPServer(authentication_server, "M1", m1); + + BigInteger k = new BigInteger(1, MessageDigest.getInstance("SHA-256").digest(s.toByteArray())); + + BigInteger m1 = generateM1(k, salt, clientA, serverB, username); + + BigInteger m2 = sendM1ToSRPServer(authentication_server, username, m1); + if(m2 == BigInteger.ZERO) return false; // TODO Show error: error in M1 + boolean verified = verifyM2(m2, k, clientA, serverB, username); + return verified; // TODO If false, Username or password are not correct -> Show a warning and get back to login fragment } catch (ClientProtocolException e) { // TODO Auto-generated catch block @@ -218,30 +221,35 @@ public class ProviderAPI extends IntentService { } } - private BigInteger generateM1(BigInteger K, BigInteger clientA, BigInteger serverB, String username) throws NoSuchAlgorithmException { - /* https://github.com/leapcode/srp_js/blob/master/src/srp_session.js - var hashN = SHA256(hex2a(N.toString(16))) - var hashG = SHA256(hex2a(g.toString(16))) - var hexString = hexXor(hashN, hashG); - hexString += SHA256(I); - hexString += salt; - hexString += Astr; - hexString += Bstr; - hexString += K - M = SHA256(hex2a(hexString)); - //M2 = H(A, M, K) - M2 = SHA256(hex2a(Astr + M + K)); - */ + private BigInteger sendAToSRPServer(String server_url, String username, BigInteger clientA) throws ClientProtocolException, IOException, NumberFormatException, JSONException { + DefaultHttpClient client = new LeapHttpClient(getApplicationContext()); + String parameter_chain = "A" + "=" + clientA.toString(16) + "&" + "login" + "=" + username; + HttpPost post = new HttpPost(server_url + "/sessions.json" + "?" + parameter_chain); + + HttpResponse getResponse = client.execute(post); + HttpEntity responseEntity = getResponse.getEntity(); + String plain_response = new Scanner(responseEntity.getContent()).useDelimiter("\\A").next(); + JSONObject json_response = new JSONObject(plain_response); + if(!json_response.isNull("errors") || json_response.has("errors")) { + return BigInteger.ZERO; + } + List<Cookie> cookies = client.getCookieStore().getCookies(); + if(!cookies.isEmpty()) { + String session_id = cookies.get(0).getValue(); + } + return new BigInteger(json_response.getString("B"), 16); + } + + public BigInteger generateM1(BigInteger K, BigInteger salt, BigInteger clientA, BigInteger serverB, String username) throws NoSuchAlgorithmException { String digest_of_N_as_string = new BigInteger(MessageDigest.getInstance("SHA-256").digest(ConfigHelper.NG_1024.getBytes())).toString(16); - + String digest_of_G_as_string = new BigInteger(1, MessageDigest.getInstance("SHA-256").digest(ConfigHelper.g.toString(16).getBytes())).toString(16); - //String digest_of_G_as_string = new BigInteger(MessageDigest.getInstance("SHA-256").digest(ConfigHelper.g.toByteArray())).toString(16); - + String xor_n_and_g = hexXor(digest_of_N_as_string, digest_of_G_as_string); - + String digest_of_username_as_string = new BigInteger(MessageDigest.getInstance("SHA-256").digest(username.getBytes())).toString(16); - String m1_source_string = xor_n_and_g + digest_of_username_as_string + clientA.toString(16) + serverB.toString(16) + K.toString(16); + String m1_source_string = xor_n_and_g + digest_of_username_as_string + salt.toString(16) + clientA.toString(16) + serverB.toString(16) + K.toString(16); return new BigInteger(1, MessageDigest.getInstance("SHA-256").digest(m1_source_string.getBytes())); } @@ -318,33 +326,15 @@ public class ProviderAPI extends IntentService { } buffer.append(Integer.toHexString(intValue) + ""); } - return buffer.toString().toUpperCase(); + return buffer.toString(); } - private BigInteger sendAToSRPServer(String server_url, String username, BigInteger clientA) throws ClientProtocolException, IOException, NumberFormatException, JSONException { + private BigInteger sendM1ToSRPServer(String server_url, String username, BigInteger m1) throws ClientProtocolException, IOException, JSONException { DefaultHttpClient client = new LeapHttpClient(getApplicationContext()); - String parameter_chain = "A" + "=" + clientA.toString() + "&" + "login" + "=" + username; - HttpPost post = new HttpPost(server_url + "/sessions.json" + "?" + parameter_chain); - - HttpResponse getResponse = client.execute(post); - HttpEntity responseEntity = getResponse.getEntity(); - String plain_response = new Scanner(responseEntity.getContent()).useDelimiter("\\A").next(); - JSONObject json_response = new JSONObject(plain_response); - if(!json_response.isNull("errors")) { - return BigInteger.ZERO; - } - List<Cookie> cookies = client.getCookieStore().getCookies(); - if(!cookies.isEmpty()) { - String session_id = cookies.get(0).getValue(); - } - return new BigInteger(json_response.getString("B"), 16); - } - private BigInteger sendM1ToSRPServer(String server_url, String parameter_name, BigInteger parameter) throws ClientProtocolException, IOException, JSONException { - DefaultHttpClient client = new LeapHttpClient(getApplicationContext()); - String parameter_chain = parameter_name + "=" + parameter.toString(); - HttpPost post = new HttpPost(server_url + "/sessions.json" + "?" + parameter_chain); + String parameter_chain = "client_auth" + "=" + m1.toString(16); + HttpPut put = new HttpPut(server_url + "/sessions/" + username +".json" + "?" + parameter_chain); - HttpResponse getResponse = client.execute(post); + HttpResponse getResponse = client.execute(put); HttpEntity responseEntity = getResponse.getEntity(); String plain_response = new Scanner(responseEntity.getContent()).useDelimiter("\\A").next(); JSONObject json_response = new JSONObject(plain_response); |