Heerarka Advanced Encryption Standard (AES) ee ku jira cryptography, oo sidoo kale loo yaqaano Rijndael encryption, waa halbeeg sireed qeexid ay qaadatay dawlada dhexe ee Maraykanka.
AES waa nooc ka mid ah Rijndael block cipher oo ay sameeyeen laba cryptographers Belgian, Joan Daemen iyo Vincent Rijmen, kuwaas oo u gudbiyay soo jeedin NIST inta lagu guda jiro nidaamka xulashada AES. Rijndael waa xarfo xarfo ah oo leh furayaal kala duwan iyo cabbirro xaddidan. Wixii AES ah, NIST waxay dooratay saddex xubnood oo qoyska Rijndael ah, mid walbana leh cabbir xaddidan oo ah 128 laakiin leh saddex dherer oo kala duwan: 128, 192, iyo 256 bits.
Heerkan waxa loo isticmaalaa in lagu beddelo DES-gii asalka ahaa (Heerka Encryption Standard) oo si weyn ayaa looga isticmaalay adduunka oo dhan. Habka xulashada shan sano ka dib, Heerka Sarreysa ee Encryption waxaa daabacay Machadka Qaranka ee Heerarka iyo Farsamada (NIST) ee FIPS PUB 197 Noofambar 26, 2001, wuxuuna noqday halbeeg ansax ah Maajo 26, 2002. 2006, Heerarka Qarsoon ee Sare waxa uu noqday mid ka mid ah algorithms-yada ugu caansan ee sirta furaha summaysan.
AES waxaa laga hirgaliyay software iyo hardware aduunka oo dhan si loo sireeyo xogta xasaasiga ah. Waxay lama huraan u tahay ilaalinta kombuyuutarka dawladda, amniga internetka iyo ilaalinta xogta elektaroonigga ah.
Astaamaha AES (Heerka sirta saraysa):
Shabakadda 1.SP: Waxay ka shaqeysaa qaab dhismeedka shabakadda SP, ee ma aha qaabdhismeedka Feitel ee lagu arkay kiiska DES algorithm.
2. Xogta Byte: Algorithm-ka AES encryption wuxuu ku shaqeeyaa xogta byte halkii uu ka ahaan lahaa xog yar. Markaa waxay ula dhaqantaa cabbirka 128-bit ee cabbirka sida 16 bytes inta lagu jiro sirta.
3. Dhererka Furaha: Tirada wareegyada la fulinayo waxay ku xiran tahay dhererka furaha loo isticmaalo in lagu sireeyo xogta. Waxaa jira 10 wareeg oo loogu talagalay cabbirka furaha ee 128-bit, 12 wareeg oo cabbirka 192-bit ah, iyo 14 wareeg oo cabbirka 256-bit ah.
4. Balaadhinta Furaha: Waxa ay kor u qaadaysaa hal fure inta lagu jiro marxaladda koowaad, kaas oo hadhow lagu balaadhiyo furayaal badan oo loo isticmaalo wareegyada shakhsi ahaaneed.
Waqtigan xaadirka ah, badi qaybaha Feasycom ee Bluetooth-ka waxay taageeraan gudbinta xogta sirta AES-128, taas oo si weyn u wanaajisa amniga gudbinta xogta. Faahfaahin dheeraad ah, fadlan la xiriir kooxda Feasycom.
