Cryptography explained in kannada (with practical video)
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Hi friends my name is kanakesh, welcome to tech kanakesh YouTube channel
Today I am going to discuss about cryptography
pkg install openssl-tool
pkg install nano
For encrypting
openssl enc -aes-256-cbc -in input_file_name.txt -out output_file_name.txt
for decrypting
openssl enc -aes-256-cbc -d -in input_file_name.txt -out output_file_name.txt
NOTES: CRYPTOGRAPHY:
Cryptography is the art of converting text into another form for secret
transmission and reception.
It works by converting plain text into cipher text using
some encryption algorithm at the sender's side and converting ciphertext into
plain text at the receiver’s.
Cryptography is used to provide confidentiality, integrity, authenticity and non-repudiation.
Key terms:
Plain text: Message to be encrypted
Ciphertext: Encrypted message
Encryption: Process of converting plain text into cipher text.
Decryption: Process of converting ciphertext into plain text.
Algorithm: The method used to encrypt/decrypt the plain text.
Key: The data used for encrypting/decrypting.
Symmetric cryptography:
Here one single key is used for encryption and same key is used for decryption.
DES and AES are examples of symmetric key cryptography.
Asymmetric cryptography/Public key cryptography:
Here two keys are used, Public key is used for encryption and Private key is used for decryption; e.g. RSA.
Source :internet
Special thanks to
Devaraj.s.m
Sankalp.mollick
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2019-02-02 21:43:15
source
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