Theoretically, RSA keys that are 2048 bits long should be good until 2030. If so, isn't it a bit early to start using the 4096-bit keys that have become increasingly available in encryption-enabled applications? It depends.
Overview: DSA vs. RSA During the process of generating server keys, client keys, or PGP keys in the JSCAPE MFT Server Manager, you're asked to choose between two supported key algorithms: RSA or DSA. Which one should you choose?