ʻO ka Advanced Encryption Standard (AES) i loko o ka cryptography, i ʻike ʻia ʻo Rijndael encryption, kahi maʻamau hoʻopunipuni kikoʻī i hāpai ʻia e ke aupuni federal US.
He ʻano ʻokoʻa ʻo AES o ka Rijndael block cipher i hoʻomohala ʻia e ʻelua mau cryptographers Belgian, ʻo Joan Daemen lāua ʻo Vincent Rijmen, nāna i waiho i kahi noi iā NIST i ke kaʻina koho AES. ʻO Rijndael kahi pūʻulu ciphers me nā kī like ʻole a me nā nui poloka. No AES, ua koho ʻo NIST i ʻekolu lālā o ka ʻohana Rijndael, ʻo kēlā me kēia me ka nui o ka poloka o 128 bits akā me ʻekolu mau kī like ʻole: 128, 192, a me 256 bits.
Hoʻohana ʻia kēia maʻamau e pani i ka DES mua (Data Encryption Standard) a ua hoʻohana nui ʻia a puni ka honua. Ma hope o ke kaʻina hana koho ʻelima makahiki, ua paʻi ʻia ka Advanced Encryption Standard e ka National Institute of Standards and Technology (NIST) ma FIPS PUB 197 ma Nowemapa 26, 2001, a ua lilo ia i kumu kūpono ma Mei 26, 2002. Ma 2006, ka Ua lilo ʻo Advanced Encryption Standard i kekahi o nā algorithms kaulana loa i ka symmetric key encryption.
Hoʻokomo ʻia ʻo AES i nā lako polokalamu a me nā lako a puni ka honua e hoʻopili i ka ʻikepili koʻikoʻi. He mea nui ia no ka palekana kamepiula aupuni, cybersecurity a me ka pale ʻikepili uila.
Nā hiʻohiʻona o AES (Advanced Encryption Standard):
1.SP Network: Hana ia ma ka ʻōnaehana pūnaewele SP, ʻaʻole ka ʻōnaehana cipher Feistel i ʻike ʻia ma ka hihia o ka DES algorithm.
2. ʻIkepili Byte: Ke hana nei ka algorithm encryption AES ma ka ʻikepili byte ma kahi o ka ʻikepili bit. No laila mālama ia i ka nui o ka poloka 128-bit e like me 16 bytes i ka wā hoʻopunipuni.
3. Ka lōʻihi o ke kī: ʻO ka helu o nā pōʻai e hoʻokō ai ma muli o ka lōʻihi o ke kī i hoʻohana ʻia no ka hoʻopili ʻana i ka ʻikepili. He 10 pōʻai no ka nui kī 128-bit, 12 pōʻai no ka nui kī 192-bit, a he 14 pōʻai no ka nui kī 256-bit.
4. Hoonui Ki: Lawe ia i ke kī hoʻokahi i ka pae mua, a ma hope e hoʻonui ʻia i nā kī he nui i hoʻohana ʻia i nā pōʻai pākahi.
I kēia manawa, kākoʻo ka hapa nui o nā modules Bluetooth o Feasycom i ka hoʻoili ʻana i ka ʻikepili hoʻopunahele AES-128, kahi e hoʻomaikaʻi nui ai i ka palekana o ka lawe ʻana i ka ʻikepili. No nā kikoʻī hou aku, e ʻoluʻolu e kelepona i ka hui Feasycom.
