On the NSA’s Supercomputer from the 1960s

· Bruce Schneier · Sept. 15, 2026, 10:35 a.m.
History of Computing history of cryptography IBM Cryptography IBM nsa Supercomputers
Summary
This blog post recounts the intriguing history of Harvest, a specialized code-breaking supercomputer developed by IBM for the NSA in the 1960s, providing insights into early computing technologies and their applications in cryptography.
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