Medieval Security Techniques
Sonja Drummer describes (with photographs) two medieval security techniques. The first is a for authentication: a document has been cut in half with an irregular pattern, so that the two halves can be brought together to prove authenticity. The second is for integrity: hashed lines written above and below a block of text ensure that no one can add additional text at a later date.
Me • February 12, 2021 1:30 PM
I liked how she pointed out that the second technique is what we still (some of us anyway) do for checks, just scribbling out the rest of the area.