November 27, 2020

Crypto

Some notes about Crypto stuff

Encryption

At RestIn Transit
AES[128|192|256] – Advanced Encryption Standard. Uses Symmetric KeyWeb Access – HTTPS
RSAFile Transfers – FTPS, SFTP, SCP, WebDAV over HTTPS
Remote Shell – SSH
  • Symmetric Encryption
    • Static PRIVATE KEY known on both sides
  • Asymmetric Encryption
    • Public / Private KEY PAIR
    • RSA Algorithm
      • HTTPS (TLS/SSL)
      • SSH
      • Bitcoin
      • Pretty Good Privacy (PGP)
      • Gnu Privacy Guard (GPG)

TLS (Transport Layer Security)

Certificate DetailsOptions
Signature Algorithm– SHA-256 with RSA Encryption
– SHA-1 (deprecated)
Public Key – Elliptic Curve Public Key (65 bytes)
– Key size = 256 bits
– Key Usage = Encrypt, Verify, Derive