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aes.lua

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+local aes = require "resty.aes"
+local str = require "resty.string"
+local iv = 'ABCDEF1234123412'
+
+
+-- 需要自己写一个函数将16进制转2进制
+function hex2bin(hexstr)
+    local str = ""
+    for i = 1, string.len(hexstr) - 1, 2 do
+        local doublebytestr = string.sub(hexstr, i, i+1);
+        local n = tonumber(doublebytestr, 16);
+        if 0 == n then
+            str = str .. '\00'
+        else
+            str = str .. string.format("%c", n)
+        end
+    end
+    return str
+end
+
+-- 加密函数,返回16进制
+function encrypT(content, key)
+    local aes_128_cbc_with_iv = assert(aes:new(key, nil, aes.cipher(128,"cbc"), {iv=iv}))
+    local encrypted = aes_128_cbc_with_iv:encrypt(content)
+    return str.to_hex(encrypted)
+end
+
+--  解密函数 返回解密字符串
+function dencrypT(content, key)
+    local aes_128_cbc_with_iv = assert(aes:new(key, nil, aes.cipher(128,"cbc"), {iv=iv}))
+    local dencrypted = aes_128_cbc_with_iv:decrypt(hex2bin(content))
+    return dencrypted
+end
+
+--ngx.say(encrypt('123456'))
+--ngx.say(dencrypt('32e29ba66134e3d8f2c149a2b93006c7'))