# openssl todo

here what I want to learn about cryptography

- [Symmetric encryption (AES, DES)](/crypto/symmetric-block-chiper.md)
	- [HMAC-SHA256](/crypto/HMAC-SHA256.md)
- Asymmetric encryption (RSA, ECC)
- Hashing (SHA, MD5)
- Digital signatures
- Certificates & PKI (Public Key Infrastructure)

footnote:
- [padding oracle attack](https://robertheaton.com/2013/07/29/padding-oracle-attack/)