Application of public key cryptography | Authentication | Confidentiality | Digital Signature

Application of public key cryptography | Authentication | Confidentiality | Digital Signature

In this video, I have explained application of public key cryptography.

#Application_of_Public_Key_Cryptography
#Application_of_Asymmetric_Key_Cryptography
#Confidentiality
#Authentication
#Digital_Signature
#chiragbhalodia
#chirag_bhalodia

[samuelnoah]

figure one is confidentiality and figure two is authentication

[lyingcat]

In Figure 2
A is encrypting M with his own Private key, meaning anyone on the net that has A’s Public key will be able to decrypt M. So it’s not confidential since anyone can decrypt and read. But it does mean that ONLY someone with A’s Private key could have encrypted M in the first place.
Figure 1
is the opposite, only B will be able to decrypt and read M.

[cycletechsa]

The moment you include your private key in the Encryption function that generate a Cipher Text, It's Authentication

[srinivaspalavelli]

Fig-1 provides confidentiality
Fig-2 provide authentication

[Ozaabhishek-]

fig 1 is confidentiality and fig 2nd is authentication

[nisargpatel]

1 st one is for secrecy and 2nd one is for authentication

[sherilkj]

figure 1 authentication and figure 2 confidentiality