RSA is a different algorithm with a longer history and a broader adoption, at least in the past. It depends upon the complexity of factoring large numbers.

RSA performs encoding by raising each element in a numerically coded version of a plaintext message to the pub power (modmax). For example, with P1 = 13 and P2 = 7, max = 91.

Based on the data they collected, they concluded “1,024-bit RSA provides 99.8% security at best.” BACKGROUND: Crypto experts analyze millions of X.509 certificates, call RSA crypto flawed ...