Technology offered a great weapon to the govern and it started to use it at full capacity, in order to have full control, mainly through agencies such as NSA. Governs' permanent hunger for information about citizen became a hunger for
big data: each individual is conditioned by govern-issued documents. You can not give birth without a govern-issued ID, you can not get married without a govern-issued ID, you can not die without a govern-issued ID, you can not prove your identity without a govern-issued ID, you can not access hospitals without a govern-issued ID and so on. And all this information is recorded in databases, which are controlled by various arms of the state; ultimately, they are controlled by the state.
During these harsh times, in 1975, Whitfield Diffie
invented the public-key cryptography, bringing the brilliant tool to the public. The govern reacted, offering its help to "keep secure" people's private keys. This never happened and from these moment
the crypto wars have begun. In 1977 RSA encryption algorithm was invented by Ron Rivest, Adi Shamir and Leonard Adleman; the algorithm was using the public-key cryptography. NSA's next move was to ban public access to Diffie's invention and the export of encryption algorithms outside the US. NSA director Bobby Inman became worried because people could access encryption technology which, until that point in time, was used only by the agencies. A 1993
article from Wired leaked an address sent by Inman in 1979, warning that "non-governmental cryptologic activity and publication [...] poses clear risks to the national security". The encryption algorithms were considered classified information and protected by Federal Regulations, such as ITAR (International Traffic in Arms Regulations, 22 CFR 121-128). Exporting them could lead to 10 years in jail. As a response, the public printed a few lines of the RSA code on t-shirts and the agency warned that wearing these kind of t-shirts while traveling outside the US or exporting them would mean jail time for the "offenders", as these kind of t-shirts were considered "munitions". Those wearing tattoos with RSA algorithm were also considered as offenders. Maybe that was the first time when the govern feared that it may lost the control. This fear can be seen in the name of the address issued by Inman: "
iSky is falling".
John Gilmore, a brave young man, stood tall in front of the agency. The same Wired article quotes him emphasizing: "Show us. Show the public how your ability to violate the privacy of any citizen has prevented a major disaster. They're abridging the freedom and privacy of all citizens—to defend us against a bogeyman that they will not explain. The decision to literally trade away our privacy is one that must be made by the whole society, not made unilaterally by a military spy agency."
The above section is, to me, a vital piece of the crypto-anarchist puzzle
Bitcoin allows us to sign arbitrary messages (using bitcoin addresses in the Diffie-Hellman the key-pair concept) quite easily, but was really not designed to function as a general purpose public keypair.
PGP was. Despite the recent setbacks to PGP (the older key-server tech that let everyone fetch each others public keys is completely broken), it remains a powerful technology;
the security of the whole internet literally depends on PGP keys, as near enough every server runs an operating system that uses PGP to check the authenticity of security updates. The reliability of the internet would be quite different if servers couldn't do this (any alternative mechanism would also rely on the authors of the operating software providing a signed hash of the security update payloads, and PGP has long been the standard tool for the job). Bitcoin also relies on PGP, the hashes of every release binary are signed with the PGP key of Bitcoin Core's repo maintainer, and both commits to the code repo and sometimes even repo comments are PGP signed.
If we are to neuter government power still further, removing their controlling grasp on ID systems is essential. While PGP is not perfect, it is highly functional and proven in several important ways, and over a huge stretch of time (essentially since the modern commercialization of the internet in the 1st half of the 1990's). If we are to continue the manifestation of crypto-anarchy and cypher punk culture into the mainstream (in which Bitcoin is the 1st major success), then understanding the need for decentralized IDs, that allow us to prove who we are and that our messages are authentically our own, then PGP (or some successor tech) will be inevitably a part of it.
Already government power is weakening, and that of their self-emancipated neo-serfs increasing (hence their desperate attempts to reassert that power in exploiting the circumstances of the 2020 pandemic). They are clearly afraid of what will happen. Trust between people is being attacked, and cryptographic tools (like Bitcoin or PGP) are among many powerful tools we can use to make sure they cannot attack decentralized power.