Both of these cryptography, that is, the SYMMETRIC Key Cryptography and the Public Key Cryptography, does the same job of encrypting and decrypting, thereby, here lies the main DIFFERENCE between them. Thus, the main difference between them is that in Symmetric Key Cryptography, only one key is put into use for encryption and decryption. On the other hand, in the CASE of Public Key Cryptography, they make use of two different keys. The public key for encryption and the PRIVATE key for decryption. Generally, the Symmetric Key Cryptography is known to be faster and simpler.

Both of these cryptography, that is, the Symmetric Key Cryptography and the Public Key Cryptography, does the same job of encrypting and decrypting, thereby, here lies the main difference between them. Thus, the main difference between them is that in Symmetric Key Cryptography, only one key is put into use for encryption and decryption. On the other hand, in the case of Public Key Cryptography, they make use of two different keys. The public key for encryption and the private key for decryption. Generally, the Symmetric Key Cryptography is known to be faster and simpler.