From 7d87cd3a215976a480b3c71b017a191597e5cb44 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Thu, 3 Jan 2019 02:11:14 +0100 Subject: filters: migrate from luacrypto to luaossl luaossl has no upstream anymore and doesn't support OpenSSL 1.1, whereas luaossl is quite active. Signed-off-by: Jason A. Donenfeld --- filters/email-gravatar.lua | 17 +++++++++++++---- filters/email-libravatar.lua | 17 +++++++++++++---- filters/file-authentication.lua | 31 +++++++++++++++++++------------ filters/gentoo-ldap-authentication.lua | 31 +++++++++++++++++++------------ filters/simple-authentication.lua | 31 +++++++++++++++++++------------ 5 files changed, 83 insertions(+), 44 deletions(-) diff --git a/filters/email-gravatar.lua b/filters/email-gravatar.lua index 52cf426..c39b490 100644 --- a/filters/email-gravatar.lua +++ b/filters/email-gravatar.lua @@ -3,15 +3,24 @@ -- prefix in filters. It is much faster than the corresponding python script. -- -- Requirements: --- luacrypto >= 0.3 --- +-- luaossl +-- -- -local crypto = require("crypto") +local digest = require("openssl.digest") + +function md5_hex(input) + local b = digest.new("md5"):final(input) + local x = "" + for i = 1, #b do + x = x .. string.format("%.2x", string.byte(b, i)) + end + return x +end function filter_open(email, page) buffer = "" - md5 = crypto.digest("md5", email:sub(2, -2):lower()) + md5 = md5_hex(email:sub(2, -2):lower()) end function filter_close() diff --git a/filters/email-libravatar.lua b/filters/email-libravatar.lua index b0e2447..7336baf 100644 --- a/filters/email-libravatar.lua +++ b/filters/email-libravatar.lua @@ -3,15 +3,24 @@ -- prefix in filters. -- -- Requirements: --- luacrypto >= 0.3 --- +-- luaossl +-- -- -local crypto = require("crypto") +local digest = require("openssl.digest") + +function md5_hex(input) + local b = digest.new("md5"):final(input) + local x = "" + for i = 1, #b do + x = x .. string.format("%.2x", string.byte(b, i)) + end + return x +end function filter_open(email, page) buffer = "" - md5 = crypto.digest("md5", email:sub(2, -2):lower()) + md5 = md5_hex(email:sub(2, -2):lower()) end function filter_close() diff --git a/filters/file-authentication.lua b/filters/file-authentication.lua index 6ee1e19..0248804 100644 --- a/filters/file-authentication.lua +++ b/filters/file-authentication.lua @@ -1,15 +1,15 @@ -- This script may be used with the auth-filter. -- -- Requirements: --- luacrypto >= 0.3 --- +-- luaossl +-- -- luaposix -- -- local sysstat = require("posix.sys.stat") local unistd = require("posix.unistd") -local crypto = require("crypto") - +local rand = require("openssl.rand") +local hmac = require("openssl.hmac") -- This file should contain a series of lines in the form of: -- username1:hash1 @@ -225,6 +225,13 @@ function get_cookie(cookies, name) return url_decode(string.match(cookies, ";" .. name .. "=(.-);")) end +function tohex(b) + local x = "" + for i = 1, #b do + x = x .. string.format("%.2x", string.byte(b, i)) + end + return x +end -- -- @@ -242,12 +249,12 @@ function get_secret() local secret_file = io.open(secret_filename, "r") if secret_file == nil then local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. crypto.hex(crypto.rand.bytes(16)) + local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) local temporary_file = io.open(temporary_filename, "w") if temporary_file == nil then os.exit(177) end - temporary_file:write(crypto.hex(crypto.rand.bytes(32))) + temporary_file:write(tohex(rand.bytes(32))) temporary_file:close() unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. unistd.unlink(temporary_filename) @@ -272,7 +279,7 @@ function validate_value(expected_field, cookie) local field = "" local expiration = 0 local salt = "" - local hmac = "" + local chmac = "" if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then return nil @@ -291,19 +298,19 @@ function validate_value(expected_field, cookie) elseif i == 3 then salt = component elseif i == 4 then - hmac = component + chmac = component else break end i = i + 1 end - if hmac == nil or hmac:len() == 0 then + if chmac == nil or chmac:len() == 0 then return nil end -- Lua hashes strings, so these comparisons are time invariant. - if hmac ~= crypto.hmac.digest("sha256", field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt, get_secret()) then + if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then return nil end @@ -324,11 +331,11 @@ function secure_value(field, value, expiration) end local authstr = "" - local salt = crypto.hex(crypto.rand.bytes(16)) + local salt = tohex(rand.bytes(16)) value = url_encode(value) field = url_encode(field) authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. crypto.hmac.digest("sha256", authstr, get_secret()) + authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) return authstr end diff --git a/filters/gentoo-ldap-authentication.lua b/filters/gentoo-ldap-authentication.lua index b4d98c2..673c88d 100644 --- a/filters/gentoo-ldap-authentication.lua +++ b/filters/gentoo-ldap-authentication.lua @@ -1,8 +1,8 @@ -- This script may be used with the auth-filter. Be sure to configure it as you wish. -- -- Requirements: --- luacrypto >= 0.3 --- +-- luaossl +-- -- lualdap >= 1.2 -- -- luaposix @@ -10,9 +10,9 @@ -- local sysstat = require("posix.sys.stat") local unistd = require("posix.unistd") -local crypto = require("crypto") local lualdap = require("lualdap") - +local rand = require("openssl.rand") +local hmac = require("openssl.hmac") -- -- @@ -226,6 +226,13 @@ function get_cookie(cookies, name) return string.match(cookies, ";" .. name .. "=(.-);") end +function tohex(b) + local x = "" + for i = 1, #b do + x = x .. string.format("%.2x", string.byte(b, i)) + end + return x +end -- -- @@ -243,12 +250,12 @@ function get_secret() local secret_file = io.open(secret_filename, "r") if secret_file == nil then local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. crypto.hex(crypto.rand.bytes(16)) + local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) local temporary_file = io.open(temporary_filename, "w") if temporary_file == nil then os.exit(177) end - temporary_file:write(crypto.hex(crypto.rand.bytes(32))) + temporary_file:write(tohex(rand.bytes(32))) temporary_file:close() unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. unistd.unlink(temporary_filename) @@ -273,7 +280,7 @@ function validate_value(expected_field, cookie) local field = "" local expiration = 0 local salt = "" - local hmac = "" + local chmac = "" if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then return nil @@ -292,19 +299,19 @@ function validate_value(expected_field, cookie) elseif i == 3 then salt = component elseif i == 4 then - hmac = component + chmac = component else break end i = i + 1 end - if hmac == nil or hmac:len() == 0 then + if chmac == nil or chmac:len() == 0 then return nil end -- Lua hashes strings, so these comparisons are time invariant. - if hmac ~= crypto.hmac.digest("sha256", field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt, get_secret()) then + if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then return nil end @@ -325,11 +332,11 @@ function secure_value(field, value, expiration) end local authstr = "" - local salt = crypto.hex(crypto.rand.bytes(16)) + local salt = tohex(rand.bytes(16)) value = url_encode(value) field = url_encode(field) authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. crypto.hmac.digest("sha256", authstr, get_secret()) + authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) return authstr end diff --git a/filters/simple-authentication.lua b/filters/simple-authentication.lua index 77d1fd0..23d3457 100644 --- a/filters/simple-authentication.lua +++ b/filters/simple-authentication.lua @@ -1,15 +1,15 @@ -- This script may be used with the auth-filter. Be sure to configure it as you wish. -- -- Requirements: --- luacrypto >= 0.3 --- +-- luaossl +-- -- luaposix -- -- local sysstat = require("posix.sys.stat") local unistd = require("posix.unistd") -local crypto = require("crypto") - +local rand = require("openssl.rand") +local hmac = require("openssl.hmac") -- -- @@ -180,6 +180,13 @@ function get_cookie(cookies, name) return url_decode(string.match(cookies, ";" .. name .. "=(.-);")) end +function tohex(b) + local x = "" + for i = 1, #b do + x = x .. string.format("%.2x", string.byte(b, i)) + end + return x +end -- -- @@ -197,12 +204,12 @@ function get_secret() local secret_file = io.open(secret_filename, "r") if secret_file == nil then local old_umask = sysstat.umask(63) - local temporary_filename = secret_filename .. ".tmp." .. crypto.hex(crypto.rand.bytes(16)) + local temporary_filename = secret_filename .. ".tmp." .. tohex(rand.bytes(16)) local temporary_file = io.open(temporary_filename, "w") if temporary_file == nil then os.exit(177) end - temporary_file:write(crypto.hex(crypto.rand.bytes(32))) + temporary_file:write(tohex(rand.bytes(32))) temporary_file:close() unistd.link(temporary_filename, secret_filename) -- Intentionally fails in the case that another process is doing the same. unistd.unlink(temporary_filename) @@ -227,7 +234,7 @@ function validate_value(expected_field, cookie) local field = "" local expiration = 0 local salt = "" - local hmac = "" + local chmac = "" if cookie == nil or cookie:len() < 3 or cookie:sub(1, 1) == "|" then return nil @@ -246,19 +253,19 @@ function validate_value(expected_field, cookie) elseif i == 3 then salt = component elseif i == 4 then - hmac = component + chmac = component else break end i = i + 1 end - if hmac == nil or hmac:len() == 0 then + if chmac == nil or chmac:len() == 0 then return nil end -- Lua hashes strings, so these comparisons are time invariant. - if hmac ~= crypto.hmac.digest("sha256", field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt, get_secret()) then + if chmac ~= tohex(hmac.new(get_secret(), "sha256"):final(field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt)) then return nil end @@ -279,11 +286,11 @@ function secure_value(field, value, expiration) end local authstr = "" - local salt = crypto.hex(crypto.rand.bytes(16)) + local salt = tohex(rand.bytes(16)) value = url_encode(value) field = url_encode(field) authstr = field .. "|" .. value .. "|" .. tostring(expiration) .. "|" .. salt - authstr = authstr .. "|" .. crypto.hmac.digest("sha256", authstr, get_secret()) + authstr = authstr .. "|" .. tohex(hmac.new(get_secret(), "sha256"):final(authstr)) return authstr end -- cgit