Re: Inspired by Chris's HMAC cipher

On 10/8/2024 6:42 AM, Stefan Claas wrote:

Chris M. Thomasson wrote:

On 9/20/2024 4:17 AM, Stefan Claas wrote:

I came up with the following idea.
>
Register a webpage at nekoweb.org, use an API key
and send encrypted messages to the web page, which
later Bob and Alice can decrypt.[...]

>
To decrypt use the default key, except click on the SHA512 radio button,
then click decrypt:
>
http://fractallife247.com/test/hmac_cipher/ver_0_0_0_1?ct_hmac_cipher=a4f7cb5f3c7a0957d9517ad740b06a5d13a02e0affcb2882f700e388eec93f650c92e3b451915f04d2c0dd45f13e1ad5bfad03552937e2ff2602ec88dc3ccdce8b3076ec0addad4b41123297542709c292bb836850057363dbd2e7c7eb6f237db3e3d3d891600c880b92bbbe0b293a34bbc4994c81dba3deef421247965b01ef1cfca2ac91fc73b1511997cb09907e

 Hi Chris, please reply here in plaintext. I do not have the passwort anymore.
 

If you click on the link; click on the SHA512 radio button and then click the decrypt button you should see the following plaintext:
________________________
Well, shit... I have been really busy lately.
Sorry for neglecting this group.
________________________
Here is a screenshot with the plaintext highlighted:
https://i.ibb.co/tzSbQYJ/image.png