resty.aes: minor coding style fixes.

Author: agentzh

lib/resty/aes.lua

@@ -86,14 +86,15 @@ int EVP_BytesToKey(const EVP_CIPHER *type,const EVP_MD *md, const unsigned char
 local ctx_ptr_type = ffi.typeof("EVP_CIPHER_CTX[1]")
 
 hash = {
- md5 = C.EVP_md5(),
- sha1 = C.EVP_sha1(),
- sha224 = C.EVP_sha224(),
- sha256 = C.EVP_sha256(),
- sha384 = C.EVP_sha384(),
- sha512 = C.EVP_sha512()
+  md5 = C.EVP_md5(),
+  sha1 = C.EVP_sha1(),
+  sha224 = C.EVP_sha224(),
+  sha256 = C.EVP_sha256(),
+  sha384 = C.EVP_sha384(),
+  sha512 = C.EVP_sha512()
 }
 
+
 function cipher(size, _cipher)
  local _size = size or 128
  local _cipher = _cipher or "cbc"
@@ -105,6 +106,7 @@ function cipher(size, _cipher)
  end
 end
 
+
 function new(self, key, salt, _cipher, _hash, hash_rounds)
  local encrypt_ctx = ffi_new(ctx_ptr_type)
  local decrypt_ctx = ffi_new(ctx_ptr_type)
@@ -162,6 +164,7 @@ function new(self, key, salt, _cipher, _hash, hash_rounds)
  }, mt)
 end
 
+
 function encrypt(self, s)
  local s_len = #s
  local max_len = s_len + 16
@@ -185,6 +188,7 @@ function encrypt(self, s)
  return ffi_str(buf, out_len[0] + tmp_len[0])
 end
 
+
 function decrypt(self, s)
  local s_len = #s
  local buf = ffi_new("unsigned char[?]", s_len)
@@ -207,8 +211,10 @@ function decrypt(self, s)
  return ffi_str(buf, out_len[0] + tmp_len[0])
 end
 
+
 -- to prevent use of casual module global variables
 getmetatable(resty.aes).__newindex = function (table, key, val)
  error('attempt to write to undeclared variable "' .. key .. '": '
  .. debug.traceback())
 end
+