已被ryanh7大佬解决。请教nodered大佬如何得到这个结果

bainiu

1、最近在折腾阿里的TTS ，发现他的token有时效性，官网有一段签名机制说明，我在nodered里一直搞不定。官网示例地址https://help.aliyun.com/document_detail/69009.html，我用网上的工具：https://1024tools.com/hmac 计算到了正确结果，以下的图有两个结果A和B ，我在nodered上计算的总是A，就是得不到B。以下网上工具计算的结果。



2、nodered上安装的节点node-red-node-base64 、node-red-contrib-crypto-js（用hmac）


3、我在nodered上得到的结果总是A



4、我在论坛里发了一个贴求教，@ryanh7  大佬提醒是二进制的问题，但是我不知道怎么得到HMAC计算返回的原始二进制数据

5、以下是我的流

[{"id":"53e1c4ae1824fdb0","type":"tab","label":"流程 2","disabled":false,"info":"","env":[]},{"id":"9f7a1f08696b35bf","type":"debug","z":"53e1c4ae1824fdb0","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","statusVal":"","statusType":"auto","x":790,"y":360,"wires":[]},{"id":"0a62695101aedfea","type":"inject","z":"53e1c4ae1824fdb0","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":190,"y":200,"wires":[["9487cc8882d79643"]]},{"id":"9487cc8882d79643","type":"function","z":"53e1c4ae1824fdb0","name":"待转字串","func":"var a ="GET&%2F&AccessKeyId%3Dtestid%26Action%3DCreateKey%26Format%3Djson%26SignatureMethod%3DHMAC-SHA1%26SignatureVersion%3D1.0%26Timestamp%3D2016-03-28T03%253A13%253A08Z%26Version%3D2016-01-20"\nmsg.payload = a;\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":360,"y":200,"wires":[["ed0ce794015306ab"]]},{"id":"ed0ce794015306ab","type":"hmac","z":"53e1c4ae1824fdb0","name":"HMAC sha1","algorithm":"HmacSHA1","key":"testsecret&","x":530,"y":200,"wires":[["9f7a1f08696b35bf","01001593847da399"]]},{"id":"01001593847da399","type":"base64","z":"53e1c4ae1824fdb0","name":"","action":"str","property":"payload","x":760,"y":200,"wires":[["9f7a1f08696b35bf"]]}]

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2022-4-12 11:12 上传

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6、请教如何实现得到结果B

BlueFang

换个思路，采集网页计算器的结果B。

bainiu

BlueFang 发表于 2022-4-12 16:42
换个思路，采集网页计算器的结果B。

那不行的，我要在nodered里自动更新token，真不知道怎么玩了。

bainiu

感谢@ryanh7 解决