diff options
| -rw-r--r-- | plugins/mod_auth_internal_hashed.lua | 27 | ||||
| -rw-r--r-- | util/sasl/scram.lua | 11 |
2 files changed, 21 insertions, 17 deletions
diff --git a/plugins/mod_auth_internal_hashed.lua b/plugins/mod_auth_internal_hashed.lua index 9cffcc6e..50e0e052 100644 --- a/plugins/mod_auth_internal_hashed.lua +++ b/plugins/mod_auth_internal_hashed.lua @@ -14,7 +14,7 @@ local error = error; local ipairs = ipairs; local hashes = require "util.hashes"; local jid_bare = require "util.jid".bare; -local saltedPasswordSHA1 = require "util.sasl.scram".saltedPasswordSHA1; +local getAuthenticationDatabaseSHA1 = require "util.sasl.scram".getAuthenticationDatabaseSHA1; local config = require "core.configmanager"; local usermanager = require "core.usermanager"; local generate_uuid = require "util.uuid".generate; @@ -52,11 +52,12 @@ function new_hashpass_provider(host) if credentials.iteration_count == nil or credentials.salt == nil or string.len(credentials.salt) == 0 then return nil, "Auth failed. Stored salt and iteration count information is not complete."; end - - local valid, binpass = saltedPasswordSHA1(password, credentials.salt, credentials.iteration_count); - local hexpass = binpass:gsub(".", function (c) return ("%02x"):format(c:byte()); end); - - if valid and hexpass == credentials.hashpass then + + local valid, stored_key, server_key = getAuthenticationDatabaseSHA1(password, credentials.salt, credentials.iteration_count); + local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end); + local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end); + + if valid and stored_key_hex == credentials.stored_key and server_key_hex == credentials.server_key_hex then return true; else return nil, "Auth failed. Invalid username, password, or password hash information."; @@ -102,9 +103,10 @@ function new_hashpass_provider(host) function provider.create_user(username, password) if is_cyrus(host) then return nil, "Account creation/modification not available with Cyrus SASL."; end local salt = generate_uuid(); - local valid, binpass = saltedPasswordSHA1(password, salt, iteration_count); - local hexpass = binpass:gsub(".", function (c) return ("%02x"):format(c:byte()); end); - return datamanager.store(username, host, "accounts", {hashpass = hexpass, salt = salt, iteration_count = iteration_count}); + local valid, stored_key, server_key = saltedPasswordSHA1(password, salt, iteration_count); + local stored_key_hex = stored_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end); + local server_key_hex = server_key:gsub(".", function (c) return ("%02x"):format(c:byte()); end); + return datamanager.store(username, host, "accounts", {stored_key = stored_key_hex, server_key = server_key_hex, salt = salt, iteration_count = iteration_count}); end function provider.get_sasl_handler() @@ -124,9 +126,10 @@ function new_hashpass_provider(host) usermanager.set_password(username, credentials.password); credentials = datamanager.load(username, host, "accounts") or {}; end - local salted_password, iteration_count, salt = credentials.hashpass, credentials.iteration_count, credentials.salt; - salted_password = salted_password and salted_password:gsub("..", function(x) return string.char(tonumber(x, 16)); end); - return salted_password, iteration_count, salt, true; + local stored_key, server_key, iteration_count, salt = credentials.stored_key, credentials.server_key, credentials.iteration_count, credentials.salt; + stored_key = stored_key and stored_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end); + server_key = server_key and server_key:gsub("..", function(x) return string.char(tonumber(x, 16)); end); + return stored_key, server_key, iteration_count, salt, true; end }; return new_sasl(realm, testpass_authentication_profile); diff --git a/util/sasl/scram.lua b/util/sasl/scram.lua index c366a152..08533b68 100644 --- a/util/sasl/scram.lua +++ b/util/sasl/scram.lua @@ -35,7 +35,7 @@ Supported Authentication Backends scram_{MECH}: -- MECH being a standard hash name (like those at IANA's hash registry) with '-' replaced with '_' function(username, realm) - return salted_password, iteration_count, salt, state; + return stored_key, server_key, iteration_count, salt, state; end ]] @@ -97,16 +97,17 @@ local function hashprep(hashname) return hashname:lower():gsub("-", "_"); end -function saltedPasswordSHA1(password, salt, iteration_count) - local salted_password +function getAuthenticationDatabaseSHA1(password, salt, iteration_count) if type(password) ~= "string" or type(salt) ~= "string" or type(iteration_count) ~= "number" then return false, "inappropriate argument types" end if iteration_count < 4096 then log("warn", "Iteration count < 4096 which is the suggested minimum according to RFC 5802.") end - - return true, Hi(hmac_sha1, password, salt, iteration_count); + local salted_password = Hi(hmac_sha1, password, salt, iteration_count); + local stored_key = sha1(hmac_sha1(salted_password, "Client Key")) + local server_key = hmac_sha1(salted_password, "Server Key"); + return true, stored_key, server_key end local function scram_gen(hash_name, H_f, HMAC_f) |