WEBVTT 1 00:00:00.000 --> 00:00:15.000 Introduction 2 00:00:15.000 --> 00:01:25.000 Cryptography 3 00:01:25.000 --> 00:02:25.000 Ciphers 4 00:02:25.000 --> 00:09:25.000 Substitution Cipher 5 00:09:25.000 --> 00:11:08.000 Caesar Cipher 6 00:11:08.000 --> 00:17:52.000 Vigenere Cipher 7 00:17:52.000 --> 00:18:20.000 Substitution Cipher 8 00:18:20.000 --> 00:20:20.000 Frequency Analysis 9 00:20:20.000 --> 00:22:20.000 Ciphers (continued) 10 00:22:20.000 --> 00:25:46.000 Hashes 11 00:25:46.000 --> 00:32:28.000 Hash Function 12 00:32:28.000 --> 00:33:52.000 Modern Cryptography 13 00:33:52.000 --> 00:35:52.000 Cryptographic Hash Functions 14 00:35:52.000 --> 00:42:00.000 SHA-1 15 00:42:00.000 --> 00:43:54.000 Modern Cryptography (continued) 16 00:43:54.000 --> 00:46:40.000 Cryptography (continued) 17 00:46:40.000 --> 00:51:47.000 Public-Key Cryptography 18 00:51:47.000 --> 00:57:45.000 Asymmetric Encryption 19 00:57:45.000 --> 01:06:02.000 Digital Signatures 20 01:06:02.000 --> 01:27:34.000 Blockchain