Published on February 14, 2014
introduction Cryptography What?
introduction Communication Alice Bob Eve
introduction Secure? Integrity
introduction Secure? Conﬁdentiality
introduction Cryptography Why?
introduction Encryption and decryption ciphertext := Encrypt(key, message) ! message := Decrypt(key, ciphertext)
introduction Symmetric-key crypto C := E(K, M) M := D(K, C)
introduction Public-key crypto C := E(Kpublic, M) M := D(Kprivate, C)
problems Why is it hard? Entropy
problems Why is it hard? Performance
conclusion Konec Want to know more?
thank you for your attention Martin Kačmar @martinkacmar
Cryptographic nonce. This article needs additional citations for verification. Relevant ... Salt (cryptography) Key stretching; References
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