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REVIEW VIDEO
MELIA FITRIAWATI 2103 141 013
CRYPTOGRAPHY
CRYPTOGRAPHY
HOW SSL WORKS
CRYPTOGRAPHY
CRYPTOGRAPHY
“Cryptography adalah ilmu atau teknik yang
digunakan untuk mengamanankan
CRYPTOSYSTEM
ke : Encryption Key
E : Encryption Program
kd : Decryption Key
In Real Life
In Real Life
HTTPS, the Hyper-Text Transfer Protocol with Secure Sockets, uses both public and private-key crypto to secure communications.
• Public key cryptography called elliptic curve
Diffie-Hellman (ECDHE)
• Private key cryptography called the Advanced
HOW SSL WORKS
WHY SSL EXIST
WHY SSL EXIST
ENCRYPTION
Menyembunyikan data yang dikirimkan dari satu komputer ke komputer lain
IDENTIFICATION
ENCRYPTION – WHY?
ENCRYPTION – WHY?
hi!
ENCRYPTION – WHY?
ENCRYPTION – WHY?
Computers agree on how to encrypt
Server sends certificate
Your computer says ‘start encrypting’
The server says ‘start encrypting’
WHO TO TRUST?
WHO TO TRUST?
Company asks CA for a certificate
CA creates certificate and signs it
Certificate installed in server
Browser issued with root certificates