06_보안0601_보안 개요보안 개요보안특징정보보호구현방법에따른분류암호화암호공격기법암호알고리즘보안강도0602_암호화🚩대칭 암호화🚩대칭암호화(Symmetric Encryption)🚩132관1_(4)블록암호화(Block Encryption) 🚩127관4_(6)ECB(Electronic CodeBook)모드🚩127관4_(6)CBC(Cipher Block Chaining)모드🚩127관4_(6)CFB(Ciper FeedBack)모드🚩127관4_(6)OFB(Output FeedBack)모드🚩127관4_(6스트림암호화(Stream Encryption)블록암호화알고리즘🚩130관1_(6)AES(Advanced Encryption Standard)DES(Data Encryption Standard)LEA(..