Daacadnimada xogtu^(Data) waxay haysaa dhinaca ugu jilicsan urur kasta. Waxay bixisaa kalsoonida iyo amniga faahfaahinta xogta inta lagu jiro meertada nolosheeda. Si kastaba ha ahaatee, maalinba maalinta ka dambaysa tirada xadgudubyada xogta iyo dhacdooyinka xog-xumaynta ayaa si degdeg ah u kordhaya. Arrinka noocan oo kale ah ayaa caadi ahaan dhaca iyadoo dembiilayaasha internetka ay had iyo jeer isku dayayaan inay helaan xeelado xasaasi ah oo cusub si ay u dhibaateeyaan isticmaalayaasha internetka. Si looga hortago dhibaatadan oo kale, waxaa jirta farsamo sir ah oo ilaalinaysa xogta dhijitaalka ah si qarsoodi ah iyadoo qoraalka cad loo beddelayo qoraallo. Sidan oo kale, shakhsiyaadka idman kaliya ayaa heli kara fariintaada ama xogtaada dadka aan la ogolayn, ma awoodaan.

Tusaale ahaan, waxaad rabtaa inaad u dirto warqad saaxiibkaa oo aad ku sheegayso inaad u xiisay isaga laakiin ma rabto in qof kale furo oo akhriyo fariinta. Hagahan, waxaan si fudud ugu sharixi doonaa laba nooc oo kala duwan oo sir ah, tusaale ahaan Symmetric iyo asymmetric encryption.

Farqiga u dhexeeya Symmetric & Asymmetric encryption

Sida la caddeeyey in sirta asymmetric -ka iyo asymmetric^(Symmetric) encryption labaduba ay yihiin qaabab habka sirta ah. Laakiin, farqiga aasaasiga ah ee u dhexeeya labadan farsamo ayaa ah in sirta asymmetric ay isticmaasho hal fure oo sir ah halka sirta asymmetric ay adeegsanayso laba fure oo kala duwan.

Qodob kale ayaa ah in sirta asymmetric-gu ay si tartiib tartiib ah u yar tahay habka fulinta. Maaddaama sifaynta summeeyeyaashu ay ka dhib yar tahay oo ay si degdeg ah u fuliso, waxay soo bandhigaysaa hab ka wanaagsan oo lagu gudbiyo xogta iyadoo tiro badan.

Waa maxay Encryption Symmetric

Sidii hore loo sheegay, sirta asymmetric-ku waa nooc sir ah oo adeegsada hal fure oo kali ah si uu u kala saaro xogta. Habkan oo kale oo fariimaha qarsoodiga ah ayaa si weyn loo isticmaali jiray waqtiyadii hore si ay u yeeshaan wadahadal qarsoodi ah oo u dhexeeya maamulada iyo ciidamada. Inta badan waxay isticmaashaa fure gaar ah oo noqon kara lambar, xaraf, calaamad, ama isku xigxiga xarfo aan sabab lahayn sida BK5 , RU-8 . Erayadan waxa lagu daraa qoraalka cad ee farriinta si ay nuxurka si gaar ah u beddelaan. Sababtoo^(Due) ah haysashada algorithm ka adag, waxay u fulisaa habka si dhakhso ah.

Inkastoo si wanaagsan loo sheegay in wax walba ay leeyihiin labada dhinac, sax iyo qalad. Si la mid ah, sirta asymmetric waxay sidoo kale leedahay khasaare isticmaalka. Taasi waa, xogta la siray waxaa lagu kala saari karaa oo keliya iyadoo la isticmaalayo fure sirta ah oo la mid ah kan soo diraya loo adeegsaday sir. Luqadda fudud, soodihu wuxuu adeegsadaa fure sir ah si uu u geliyo xogta ka hor inta uusan dirin macluumaadka, sax? Hadda, qaataha sidoo kale waa inuu lahaadaa furaha sirta ah ee isku midka ah si uu u dejiyo fariinta qarsoon. Sababtoo ah haysashada dabeecad fudud, labadaba hawlgallada waxaa loo fulin karaa si degdeg ah.

Waa maxay Asymmetric encryption

Asymmetric encryption waa nooc sir ah oo u baahan labo labo fure oo kala duwan sida furaha guud iyo furaha gaarka ah. Maadaama ay isticmaasho laba fure oo kala duwan, waxaa sidoo kale loo yaqaannaa sirta guud ee muhiimka ah waana sababta loo tixgeliyo inay aad u ammaan badan tahay marka la barbar dhigo sirta asymmetric.

Laakin halkan waxaa laga yaabaa inaad u malaynayso Maxay ugu baahan tahay laba fure? Hagaag, sirta asymmetric-ga waxay isticmaashaa hal fure si ay u kood u geliso xogta taasna waxaa loo yaqaan furaha dadweynaha. Furahan guudna qof walba wuu heli karaa. Halka sirta asymmetric-ka ay adeegsato furaha gaarka ah si uu u kala saaro xogta qarsoon taasina ay tahay in la xafido.

Tusaale ahaan, waxaad salaan u dirtaa gacaliyahaaga oo aad sir u gelisaa fariinta adiga oo isticmaalaya fure dadweyne markaas saaxiibkaa waxa uu kaliya ka dhigi karaa sir isaga oo isticmaalaya furaha gaarka ah ee adiga kugu haya. Si kastaba ha ahaatee, haddii aad codka geliso fariinta adigoo isticmaalaya fure gaar ah, saaxiibkaa wuxuu u baahan doonaa inuu haysto furahaaga guud si uu u kala saaro.

Farsamadan qarsoodiga ah marka la barbardhigo waa hab cusub waxayna bixisaa ammaan sare. Sababtu waxay tahay sirta asymmetrical waxay isticmaashaa laba fure oo kala duwan habka codaynta iyo dejinta. Si kastaba ha ahaatee, hal cilad weyn oo ah sirta asymmetric-ka ayaa ah in ay qaadato waqti ka badan habka la xariira sirta asymmetric-ga.

Furaha Gaarka ah

Furaha gaarka ah in kasta oo lagu isticmaalo algorithm si loo codeeyo oo loo kala saaro xogta. Laakiin baahida koowaad ee furahani waa in la kala saaro xog kasta oo la xardhay iyadoo la isticmaalayo furaha dadweynaha.

Xog qarinta, furahan gaarka ah waxaa sidoo kale loo yaqaan furaha sirta ah waana inuu u baahan yahay in la xafido. Waxay la macno tahay, furahan sirta ah waligiis uma baahna in la wareejiyo oo sidaas darteed ma jirto sabab ay uga baahan karaan dhinaca saddexaad.

Furaha Dadweynaha

Sida magacu tilmaamayo, furahani waxa loo heli karaa si guud. Uma baahnid wax ammaan ah waxaana inta badan loo isticmaalaa in lagu koodka xogta si aan kood u go'in.

Casharradan, waxaan ku sharraxay sirta asymmetric-ka iyo asymmetric encryption oo ay la socdaan tusaalooyinka si aad u fudud oo hufan.

Waa kaas.

What is the difference between Symmetric and Asymmetric Encryption?

Data integrity holds the most delicate aspect of any organizаtion. It provides the reliabilitу and security of data details over its lifecyсle. Howeνеr, day after day the number of dаta violations and data-tampering incidentѕ is increasing rapidlу. Such an issue cоmmonly takes place as cybercriminals always keep trying in finding new sensitive strategies to victimize internet users. To counter such a problem, there is an еncryption technique that protects digital data secrеtly by converting plaintext to ciphertext. In such a way, only authorized individuals coυld gеt access to your message or data and those people who are not authorized, cannot.

For example, you want to send a letter to your buddy stating you miss him but you don’t want anybody else to open and read the message. In this guide, I’m going to explain two different types of encryption in an easy way i.e. Symmetric and Asymmetric encryption.

Difference between Symmetric & Asymmetric Encryption

As it is cleared out that the Symmetric encryption and Asymmetric encryption both are forms of the encryption process. But, the basic difference between these two techniques is that the symmetric encryption uses a single secret key while asymmetric encryption makes use of two different separate keys.

Another point is that asymmetric encryption is relatively slower in the execution process. Since the symmetric encryption is less complicated and executes faster, it infers a better way to transfer data having in large quantities.

What is Symmetric Encryption

As said earlier, symmetric encryption is a form of encryption that uses only one private key to cipher and decipher the data. Such a way of encrypting messages had been widely used in earlier times to have a secret conversation between administrations and armies. It mainly uses a private key that can either be a number, a letter, a symbol, or a sequence of arbitrary characters such as BK5, RU-8. These words are combined with the plain text of a message so that it could change the content in a particular way. Due to having a less complex algorithm, it executes the process faster.

Although it is well said that everything has both aspects, right and wrong. In the same way, symmetric encryption has also a disadvantage of using. And that is, the encrypted data can only be deciphered using the same secret key which the sender has been used to encrypt. In simple language, the sender uses a secret key to encode data before sending the information, right? Now, the receiver should also have the same secret key to decode the enciphered message. Because of having such a simplistic nature, both the operations can be carried out quite fastly.

What is Asymmetric Encryption

Asymmetric encryption is an encryption model that requires a pair of two different key i.e. public key and private key. Since it uses two separate keys, it is also known as the public key cryptography and that’s why it is considered to be more secure as compared to the symmetric encryption.

But here you may think Why does it need two keys? Well, the asymmetric encryption uses one key to encode the data and that is called the public key. And this public key is available to everyone. Whereas the asymmetric encryption uses the private key to decode the encoded data and that must be kept secret.

For example, you send greetings to your beloved one and encrypt the message using a public key then your friend could only decrypt it using the private key which has to you. However, if you encode the message using a private key, your friend will need to have your public key to decode it.

This cryptographic technique is comparatively a new method and it provides higher security. It is because the asymmetric encryption uses two separate keys for the encoding and decoding process. However, one major shortcoming of the asymmetric encryption is that it takes more time than the process associated with the symmetric encryption.

Private Key

The private key is although used with an algorithm to encode and decode data. But the primary need of this key is to decipher any information that is ciphered using the public key.

In data encryption, this private key is also known as a secret key and it must need to be kept confidential. It means, this secret key never needs to be transferred and thus there is no reason that it can be required by the third party.

Public Key

As the name infers, this key is available publically. It doesn’t require any security and is mainly used to encode information not to decode.

In this tutorial, I have explained the symmetric encryption and asymmetric encryption along with the examples in a very simple and transparent way.

That’s it.

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