Perfect secrecy | Journey into cryptography | Computer Science | Khan Academy Perfect secrecy | Journey into cryptography | Computer Science | Khan Academy begin-post-stats Khan Academy Labs • 120K views end-post-stats begin-duration 4:13 end-duration Math topics: _Theoretical_computer_science_##Theoretical computer science##_Pseudorandomness_##Pseudorandomness##_White_noise_##White noise##_Stack_(abstract_data_type)_##Stack (abstract data type) Other topics: _Cryptography_##Cryptography##_Encryption_##Encryption##_Randomization_##Randomization##_Cryptography_##Cryptography##_Ciphertext_##Ciphertext##_Lock_(security_device)_##Lock (security device)##_Combination_lock_##Combination lock##_Key_space_(cryptography)_##Key space (cryptography)##_Block_size_(cryptography)_##Block size (cryptography)##_Cryptographic_algorithms_##Cryptographic algorithms##_Symmetric-key_algorithm_##Symmetric-key algorithm##_Cipher_##Cipher##_One-time_pad_##One-time pad##_Playing_cards_##Playing cards##_Shuffling_##Shuffling##_Card_game_##Card game##_Playing_card_##Playing card##_Standard_52-card_deck_##Standard 52-card deck video-id: vKRMWewGE9A channel_Khan_Academy_Labs_ So What Learning Cryptographic algorithms , Cryptography , Playing cards , Theoretical computer science Monday, January 22, 2018 Share Share