Decades ago there was encryption that one of those clients (maybe pidgin) layered on top of AIM. It used 128-bit blowfish for the cipher, but the key was negoti

Decades ago there was encryption that one of those clients (maybe pidgin) layered on top of AIM. It used 128-bit blowfish for the cipher, but the key was negotiated with 128-bit diffie hellman, which killed the security. I started to implement the number field sieve to demonstrate this, but got lost in the weeds and moved on to other stuff.