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Cryptography kya hota hai? Symmetric & Asymmetric Cryptography hindi

Cryptography

hello friend kya kabhi apne Cryptography ke bare me suna hai? aur kya ap jante hai ki Encryption & Decryption kya hai. agar ap hacking me career banana chahte hai to ye post apke liye hai, kyoki cryptography hacking ka ek bahut bada hissa hai. jise janna har hacker ke liye jaruri hai. ham is post me janenge ki yah kya hota hai aur ye kitne tarah ke hote hai. Asymmetric key and Symmetric key Cryptography, hash function kya hai. aur hame iski jarurat kyo padti hai.

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Cryptography kya hota hai?

dosto apne bahut jagah Cryptography ke bare me suna hoga, waise main apko ye bata du ki ye koi aj ki technology nahi hai balki ye bahut purani technology hai. bas ab isme naye naye technic a gaye hai jisse chalte Cryptography bahut advanced ho gaya hai. isme encrption aur decryption ka man roll hota hai. bina encrption aur decryption ke crptography possibal nahi hai. aur iska use kisi ke pass koi secret messege bhejne ke liye kiya jata hai.

dosto jaise ap kisi ko koi data bhej rahe hai aur ap nahi chahte hai ki koi apke us data ko dekhe to ap us data ko koi dusri format me chang kar doge matlab encrpt kar doge. to us data me lock lag jayga. jise kholne ka key apke pass hoga aur jiske pass ye data ja raha hai uske pass bhi ye key hoga to keval wahi is data ko khol payga. aur agar koi is data ko chori bhi kar lega to use samaj nahi ayga kyoki o data pura encrypt hai, jise kholne ke liye use decrypt karna hoga jiska key uske pass hona jaruri hai. ye data koi bhi document yah secret messege ho sakta hai. to dosto cryptography data transfer ki security ke liye banaya gaya hai. jo ki koi bhi secret messege kisi ke pass badi security se jati hai. 

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Types of Cryptography

cryptography 3 types se hote hai lekin mainly 3types se ise mana jata hai.

#1. semmetric cryptography 

#2. semmetric cryptography 

#3. hash function

 

 

 

semmetric encryption  (Secret Key) Cryptography (SKC)

agar ham kisi ko koi data bhej rahe hai aur us data ko hamne encrypt kiya hai. to use decrypt karne ki ek key hogi. ye key hamare pass bhi hogi aur jiske pass ye data ja raha hai uske pass bhi ye key hogi. aur is function me jis key se hamne data ko encrypt kiya hai usi key se ham data ko decrypt kar sakte hai. ye semmetric cryptography me ata hai.

semmetric encryption cryptography

 

 

 

Asemmetric encryption (Public Key) Cryptography (PKC)

jaise semmetric  key me dono user ke pass decrypt karne ke liye same key hota hai, waise isme iska oposite hota hai. ise sender jis key encrypt kar leta us key se dubara kabhi decrypt nahi kar sakta. us data ko decrypt karne ke liye sabke pass alag-alag key hoti hai jise private key bolte hai. ye Asemmetric encryption cryptography kahlati hai.

Asemmetric encryption cryptography

 

 

Hash Functions (digital fingerprint digital sighnature) cryptography

dosto ham kai website me sign up karte hai. usme ham apna username aur password dalte hai. aur wah password jis website me login karte hai us website ke server pe jake store ho jati hai. to dosto jo us website ka administrator hai, wah to apke password aur username ko dekh sakta hai, usi ke solotion ke liye hash function ka use kiya jata hai. jise md5 hash bhi bolte hai. jo hamare username aur password ko encrypt kar deta hai. aur ye aisa encryption hota hai jo keval encrypt ho sakta hai aur kabhi decrypt nahi hop sakta hai. so friend is tarah ke technology ko hash function kahte hai. yah bhi cryptography ka ek hissa hai. 

Hash Functions cryptography

 

 

cryptography ke fayde:-

#1. iske bahut sare fayde hai, isme ham apna koi bhi secret messege kisi ke pass badi asani se secret tarike se bhej sakte hai. aur kisi ko pata nahi chalta hai ki hamara messege kya hai.

#2. isme hamare data khone ka koi dar nahi hota hai. kyoki hamara data encrypt hai, jo ki koi galat hatho me jane se bhi hame koi nuksan nahi hai.

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sunil sinha
hello dosto, mera nam suniel sinha hai. aur yah website main logo ko hindi me ethical hacking, cyber security, network, aur computer, mobile , technology se related jankari dene ke liye banayi hai.
https://hindihacker.com/

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