The Advanced Encryption Standard (AES) incryptography, eo hape e tsejoang e le Rijndael encryption, ke mokhoa o hlakileng oa ho ngolla o amohetsoeng ke mmuso oa koporasi oa US.
AES ke mefuta e fapaneng ea Rijndael block cipher e entsoeng ke litsebi tse peli tsa Belgian cryptographers, Joan Daemen le Vincent Rijmen, ba rometseng tlhahiso ho NIST nakong ea khetho ea AES. Rijndael ke sete ea li-ciphers tse nang le linotlolo tse fapaneng le boholo ba li-block. Bakeng sa AES, NIST e khethile litho tse tharo tsa lelapa la Rijndael, e 'ngoe le e' ngoe e na le boloko ba boholo ba li-bits tse 128 empa e na le bolelele ba linotlolo tse tharo tse fapaneng: 128, 192, le 256 bits.
Tekanyetso ena e sebelisoa ho nkela DES ea pele (Data Encryption Standard) mme e se e sebelisoa haholo lefatšeng ka bophara. Ka mor'a ts'ebetso ea khetho ea lilemo tse hlano, Advanced Encryption Standard e ile ea hatisoa ke National Institute of Standards and Technology (NIST) ho FIPS PUB 197 ka la 26 Pulungoana, 2001, 'me ea fetoha tekanyetso e sebetsang ka May 26, 2002. Ka 2006, Advanced Encryption Standard e ne e fetohile e 'ngoe ea li-algorithms tse tsebahalang haholo ho symmetric key encryption.
AES e kengoa ts'ebetsong ho software le hardware lefats'eng lohle ho patala data e hlokolosi. E bohlokoa bakeng sa ts'ireletso ea likhomphutha tsa mmuso, ts'ireletso ea marang-rang le ts'ireletso ea data ea elektroniki.
Likarolo tsa AES (Advanced Encryption Standard):
1.SP Network: E sebetsa ho sebopeho sa marang-rang sa SP, eseng sebopeho sa cipher sa Feistel se bonoang tabeng ea algorithm ea DES.
2. Data Byte: The AES encryption algorithm e sebetsa ho data byte ho fapana le bit data. Kahoo e tšoara boholo ba li-block tsa 128-bit joalo ka li-byte tse 16 nakong ea encryption.
3. Bolelele ba Bohlokoa: Palo ea lipotoloho tse lokelang ho etsoa e ipapisitse le bolelele ba senotlolo se sebelisitsoeng ho notlela data. Ho na le li-rounds tse 10 bakeng sa boholo ba senotlolo sa 128-bit, li-rounds tse 12 bakeng sa boholo ba senotlolo sa 192-bit, le li-rounds tse 14 bakeng sa boholo ba 256-bit.
4. Katoloso ea Bohlokoa: E nka senotlolo se le seng nakong ea mohato oa pele, oo hamorao o atolositsoeng ho linotlolo tse ngata tse sebelisoang ho potoloha ka bomong.
Hajoale, boholo ba li-module tsa Bluetooth tsa Feasycom li tšehetsa phetiso ea data ea encryption ea AES-128, e ntlafatsang haholo ts'ireletso ea phetiso ea data. Bakeng sa lintlha tse ling, ka kopo ikopanye le sehlopha sa Feasycom.
