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Distinguish between Symmetric Key Cryptography and Asymmetric Key Cryptography

written 7.4 years ago by teamques10 ★ 70k

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Mumbai University > Electronics and Telecomm > Sem 7 > Data Compression and Encryption

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data compression and encryption

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written 7.4 years ago by teamques10 ★ 70k

•   modified 7.4 years ago

Symmetric key cryptography	Asymmetric key cryptography
In symmetric key cryptography, single or same key is used for both encryption as well as decryption	In asymmetric key cryptography, two separate keys are used, one for encryption and the other for decryption
It is also called a secret key cryptography or private key cryptography	It is also called as Conventional cryptography system or Public key cryptography
Mathematically it is represented as: P=D(K,E(P)) Where K=Encryption and decryption key P=Plain text D=Decryption E(P)=Encryption of plain text	Mathematically it is represented as:P=D(Kd,E(Ke,P)) Where Ke=Encryption key Kd=Decryption key D=Decryption E(Ke,P)=Encryption of plain text using encryption key P=Plain text
It is faster than asymmetric key cryptography	Because of different keys used for encryption and decryption, it is slower than symmetric key cryptography
It utilizes less resources as compared to asymmetric key cryptography	It uses more resources as compared to symmetric key cryptography
AES and DES are examples of symmetric key cryptography	Diffie hellman and RSA are examples of asymmetric key cryptography

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