less_retarded_wiki/rsa.md
2022-09-03 14:13:46 +02:00

501 B

RSA

TODO

generating keys:

  1. p := large random prime
  2. q := large random prime
  3. n := p * q
  4. f := (p - 1) * (q - 1) (this step may differ in other versions)
  5. e := 65537 (most common, other constants exist)
  6. d := solve for x: x * e = 1 mod f
  7. public key := (n,e)
  8. private key := d

message encryption:

  1. m := message encoded as a number < n
  2. encrypted := m^e mod n

message decryption:

  1. m := encrypted^d mod n
  2. decrypted := decode message from number m