In 2016 I added a paragraph to the Wikipedia page on "fuzz testing." Later, the paragraph was edited out because it "lacked reference." The editor, however, suggested that I blog the paragraph and then use the blog as a reference, so the paragraph could be included. So, here's the paragraph:
(Personal recollection from Gerald M. Weinberg) We didn't call it fuzzing back in the 1950s, but it was our standard practice to test programs by inputting decks of punch cards taken from the trash. We also used decks of random number punch cards. We weren't networked in those days, so we weren't much worried about security, but our random/trash decks often turned up undesirable behavior. Every programmer I knew (and there weren't many of us back then, so I knew a great proportion of them) used the trash-deck technique.
The subject of software testing has many myths and distortions. This story of fuzz testing has several morals:
1. This type of testing was so common that it had no name. Apparently, it was giving the name "fuzz testing" around 1988, and the namers were thus given credit in the Wikipedia article for "inventing" the technique.
2. This is just one example of how "history" is created after the fact by human beings, and what they write becomes "facts." That's why I believe there are no such things as "facts"—not in the sense of "truths."
3. In any case, this is one example of why we ought to be wary of labeling "inventors" of various techniques and technologies. For instance, Gutenberg is often labeled the "inventor" of moveable type, though moveable type existed and was widely used long before Gutenberg. Gutenberg used this idea in ways that hadn't been employed before. That was his "invention," and a worthy one it was, but if we're to understand the way technology develops, we have to be more precise in our definition of what was invented and by whom.
Finally, I have no idea who "invented" fuzz testing. It certainly wasn't me.
NOTE: If someone would like to update the fuzz testing article on Wikipedia, they're welcome to reference this blog post.
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