Asymmetric Encryption Flashcards
In asymmetric encryption, what keys are used?
A paired public and private key
RSA
Secure asymmetric encryption using a minimum of 1,024 bit keys. Frequently used for digital signatures in e-mail. Uses a paired public and private key. Uses a static key.
What are static keys?
Semipermanent, can stay the same over a long period of time.
What are ephemeral keys?
Includes a private and public ephemeral key, re-created for each session.
What is Perfect forward secrecy?
PFS, indicates that random public keys are created for each session.
Where is Elliptic curve cryptography used?
Small wireless devices; does not take much processing power.
What is Diffie-Hellman?
Key exchange algorithm used to share a symmetric key between 2 parties. Supports static and ephemeral keys.
What is DHE?
Diffie-Hellman Ephemeral, uses ephemeral keys, and generates new keys for each session.
What is ECDHE?
Elliptic Curve DHE, uses ephemeral keys generated using ECC.
What is ECDH?
Elliptic Curve DH, uses ECC to generate static keys