→ Kryptografia → Start Learning

Question		Answer
SHA start learning		secure hash algorithm sha256 to ilosc bitow skrotu hash
MD5 start learning		message-digest algorithm5 hash, ma problem z kolizjami
AES start learning		Advanced Encryption Standard symetryczny, nowszy od DES
DES start learning		Data Encryption Standard symetryczny
3DES start learning		3 Data Encryption Standard symetryczny, szyfrujemy 3 razy algorytmem DES
RSA start learning		Algorytm Rivesta-Shamira-Adlemana asymetryczny
DSA start learning		Digital Signature Algorithm asymetryczny, służy do podpisywania nie do szyfrowania
diffie hellman start learning		key exchange protocol
MAC start learning		Message Aurhentication Code
salt pepper start learning		salt - randomly generated string added to the end of password, every password has different salt, salt is stored in database so it is vuln to dict/brute force attack in pepper, server adds random (ex 30) different char combinations to the end of password and creates hashes based on it pepper is for example one char added to the end of password and it is randomly generated but it is not stored in database so it is hard to brute force
HMAC start learning		key-hash message authentication code it provides integrity(because of hash func) and authentication(because only the sender knows the secret key) it takes hash function, secret key and produces a MAC
PKI start learning		set of rules to provided authentication(digital certificates) and confidentiality(encyption), has two keys
csr start learning		certificate signing request
crl start learning		certificate revoking list - list of revoked certificates stored as a single file in the ca
ocsp start learning		online certificate status protocol, zwraca informacje o certyfikacie: good, revoked, unknown sluzy glownie do sprawdzania czy certyfikat nie zostal zrevoke-owany

kryptografia

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