RSA munitions T-shirt (opens in new tab)

When the US government classified strong encryption as “munitions,” RSA public key cryptography was technically illegal. In 1995, Adam Back protested this by creating a terse, obfuscated implementation of RSA in Perl code and used it as an email signature. The code was also printed on T-shirts. The shirt was classified as munitions because it […] The post first appeared on .