Elixir中的加密异常

Question

我已经配置了一个elixir应用程序并定义了管理路由。但是，我在尝试访问任何路由时遇到以下错误。

(退出)引发异常：**(ArgumentError)参数错误(crypto)：crypto.hmac_nif(：sha256，{：system，"Zpumk6KLEY8Qx826qspHhYrpTpDswFzHL/64aJWqhPyYZQWbV3hWq+nUIPQRMwLn"}，<lt；48，70，98，86，85，68，57，56，0，0，1>>)(crypto)crypto.el:925:：crypto.hmac/6(plug)lib/plux/crypto/key_generator.ex:64:plug.crypto.KeyGenerator.generate/7(plug)lib/plux/crypto/key_generator.ex:50:plug.crypto.KeyGenerator.with_cache/3(plug)lib/plux/session/cookie.ex:88:plug.session.cookie.get/3(plug)lib/plux/session.ex:75:plug.session.fetch_session/1中的匿名fn/5(plug)lib/plug/debugger。例如：195:plug.debugger.maybe_fach_session/1(plug)lib/plug/debugger.ex:150:plug.debugger.render/6(plug)lib/plug/debugger。例如：129:plug.debugger。catch/5(my_app)lib/my_app_web/endpoint.ex:1:MyAppWeb.endpoint.call/2(插头)lib/插头/适配器/牛仔/处理程序。例如：15:plug.adapters.cowboy.handler.upgrade/4

这是lib/my_app_web/endpoint.ex的内容。

defmodule MyAppWeb.Endpoint do
use Phoenix.Endpoint, otp_app: :my_app
socket "/socket", MyAppWeb.UserSocket
# Serve at "/" the static files from "priv/static" directory.
#
# You should set gzip to true if you are running phoenix.digest
# when deploying your static files in production.
plug Plug.Static,
at: "/", from: :my_app, gzip: false,
only: ~w(css fonts images js favicon.ico robots.txt)
# Code reloading can be explicitly enabled under the
# :code_reloader configuration of your endpoint.
if code_reloading? do
socket "/phoenix/live_reload/socket", Phoenix.LiveReloader.Socket
plug Phoenix.LiveReloader
plug Phoenix.CodeReloader
end
plug Plug.RequestId
plug Plug.Logger
plug Plug.Parsers,
parsers: [:urlencoded, :multipart, :json, Absinthe.Plug.Parser],
pass: ["*/*"],
json_decoder: Poison
plug Plug.MethodOverride
plug Plug.Head
# The session will be stored in the cookie and signed,
# this means its contents can be read but not tampered with.
# Set :encryption_salt if you would also like to encrypt it.
plug Plug.Session,
store: :cookie,
key: "_my_app_key",
signing_salt: "0FbVUD98"
plug MyAppWeb.Router
@doc """
Callback invoked for dynamically configuring the endpoint.
It receives the endpoint configuration and checks if
configuration should be loaded from the system environment.
"""
def init(_key, config) do
if config[:load_from_system_env] do
port = System.get_env("PORT") || raise "expected the PORT environment variable to be set"
{:ok, Keyword.put(config, :http, [:inet6, port: port])}
else
{:ok, config}
end
end
end

有人帮忙吗？

Answer 1

(exit) an exception was raised: ** (ArgumentError) argument error (crypto) :crypto.hmac_nif(:sha256, {:system, "Zpumk6KLEY8Qx826qspHhYrpTpDswFzHL/64aJWqhPyYZQWbV3hWq+nUIPQRMwLn"}, <<48, 70, 98, 86, 85, 68, 57, 56, 0, 0, 0, 1>>) (crypto) crypto.erl:925: :crypto.hmac/6 (plug) lib/plug/crypto/key_generator.ex:64: Plug.Crypto.KeyGenerator.generate/7 (plug) lib/plug/crypto/key_generator.ex:50: Plug.Crypto.KeyGenerator.with_cache/3 (plug) lib/plug/session/cookie.ex:88: Plug.Session.COOKIE.get/3 lib/plug/adapters/cowboy/handler.ex:15: Plug.Adapters.Cowboy.Handler.upgrade/4

您的错误日志与Plug.Session.COOKIE有关。

正如医生所说，

由于此存储使用加密功能，因此需要在连接中设置：secret_key_base字段。这可以通过一个插头轻松实现：

您似乎没有在代码中完成这一部分。