What’s So Special About PKCS#1 v1.5? And The Attack That Just Won’t Go Away!
Published in
5 min readJan 29, 2020
RSA has been with us for many decades, and it’s still going strong. But it has weaknesses. The first is where we have a short message and the second is where we have a small value of e. To recap, in traditional RSA, we take the message of m, and an encryption key value e, along with a modulus of N, to give a cipher message of:
