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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: sci.crypt
Subject: Re: [Bitmessage] A proposal, what do you think?
Date: Tue, 18 Feb 2025 14:00:56 -0800
Organization: A noiseless patient Spider
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On 2/18/2025 1:58 PM, Chris M. Thomasson wrote:
> On 2/18/2025 1:53 PM, Onion Courier wrote:
>> Let's assume Bob travels a lot and does not want to take any devices
>> with him, including his private keys, email addresses etc., but Alice
>> wants to be sure that she is communicating securely with Bob, once he
>> arrived at his various destinations.
>>
>> Prior his departure they both agreed on (a) shared secret(s) they will 
>> use.
> 
> If this is a truly secret key, then they are already setup for a secure 
> channel anyway using existing symmetric encryption techniques?
> 
> 
> http://fractallife247.com/test/hmac_cipher/ver_0_0_0_1? 
> ct_hmac_cipher=189e8b754b816c819e0dd0d9c33a65de192cc7b83213ae1a267626c6cc876515b5f3693848472fa86496b3d7ce280ef96c8bd421ad782c1682fd5f85234a39f5df0f439daabe2f01676108f5808c681b20bc0b6d95750355fad62e7ab577b5e505ef5b9ee9d8f12378021e81e97df1f9461fb1f2251190f940ad4454ef7170e353a0ed7f4879ee06e544a4e7cde58776cd02ce0d98ba52820d8f71784bf9c9e0a6badb0749b2d6a33ea1603d97da9ad1f52a4b8f8375e1bc136e362089933956d1cc3cb99883a969f8a944bbb3cc7c428caed0cb1aeb8cb170b414612553fdfe6a8f56e94d9f9ba071e6f05e

[...]

Or are you talking about Bob getting kidnapped, and exposed to the 
rubber hose treatment? Then AgentX has the secret key; Spoofs as Bob 
into luring Alice into a rather precarious scenario?