Are there any security concerns with using RSA in “CBC mode”?
Specifically: if I use RSA encryption as my block cipher operation, and apply the standard CBC mode operations including a random IV, will the resulting cipher text provide the same level of theoretical security as the underlying RSA problem?
I am only considering RSA on its own. No padding scheme. I know traditionally RSA is insecure without proper padding, but in CBC mode I don’t see why the padding would be necessary (and it complicates the issue by introducing non-deterministic elements)
I also understand that CTR, CFB, and other block cipher modes that use the block encryption function for both encryption and decryption would fail horribly with RSA. Only concerned with CBC