The more rounds (iterations), the more secure, but slower. Block Key Encryption Size Size Type Author Bits Bits Time** 3DES Diffie-Hellman 64 168 4:05 Blowfish Schneier 64 256 0:55 DES IBM-NSA 64 ...

Homomorphic encryption includes three types — partial, somewhat, and fully homomorphic encryption (FHE). Each type allows different levels of encrypted computation: partial supports one ...