Please enable JavaScript.
Coggle requires JavaScript to display documents.
Public Key Cryptography & Message Authentication - Coggle Diagram
Public Key Cryptography & Message Authentication
secure hash functions
XOR of every block
SHA
SHA-1
hash of 160 bits
SHA-2
collective of SHA-256,-384,-512
produces 512-bit message digest
SHA-3
different functions/structure from -1 and -2
HMAC
hash code for message authentication
design
treats hash function as black box
can be proven secure
Authenticated Encryption
encryption systems protecting confidentiality and authenticity (integrity)
OCB
RSA Public-Key Encryption Algorithm
attacks
brute force
math attacks
timing attacks
chosen ciphertext attacks
Diffie-Hellman