I don't know of a single book that covers this sort of thing. There are lots of on-line resources, and it's very much a case of having to chase down references

I don't know of a single book that covers this sort of thing. There are lots of on-line resources, and it's very much a case of having to chase down references and read them, and then read the works they refer to, and so on. For RSA weaknesses the Wikipedia page is a fair place to start: https://en.wikipedia.org/wiki/RSA_(cryptosystem)#Padding https://en.wikipedia.org/wiki/RSA_(cryptosystem)#Padding Simply doing a search for RSA attacks will give you several places to start ... this is a good one: https://crypto.stanford.edu/~dabo/pubs/papers/RSA-survey.pdf https://crypto.stanford.edu/~dabo/pubs/papers/RSA-survey.pdf It's one thing to read about the design and implementation of a cryptosystem, but you really want to search for attacks against them. This is a deep and gnarly area, with lots of people who know enough to be dangerous. Including me.