User talk:Raby45

1. Explain and discuss Private Key encryption schemes (10%) Private key encryption schemes, also known as symmetric encryption schemes, are a type of encryption algorithm that use a single private key for both encryption and decryption processes. In these schemes, the same key is used by both the sender and the receiver to encrypt and decrypt the data. Let's discuss private key encryption schemes in more detail: 1. Key Generation: In private key encryption, a secret key is generated, typically using a random number generator. The key must be kept confidential because anyone who possesses the key can decrypt the encrypted data. 2. Encryption: To encrypt the data, the sender uses the secret key to perform a mathematical operation on the plaintext. This operation scrambles the data, making it unreadable without the corresponding decryption operation and the secret key. The encrypted data, also known as ciphertext, is then transmitted to the receiver. 3. Decryption: The receiver, possessing the same secret key, applies the reverse mathematical operation to the ciphertext. This operation converts the ciphertext back into the original plaintext, making it readable and usable again. 4. Key Distribution: A significant challenge in private key encryption schemes is securely distributing the secret key to the intended recipient. If the key is intercepted or obtained by unauthorized parties, the security of the encryption scheme can be compromised. Key distribution mechanisms, such as secure key exchange protocols or physical delivery methods, are employed to ensure the secure sharing of private keys. Private key encryption schemes offer advantages like fast computation, simplicity, and efficiency, as they involve a single key for both encryption and decryption. However, they have some limitations:

Speedy deletion nomination of User:Raby45


Hello, and welcome to Wikipedia. A tag has been placed on User:Raby45 requesting that it be speedily deleted from Wikipedia. This has been done under section U5 of the criteria for speedy deletion, because the page appears to consist of writings, information, discussions, or activities not closely related to Wikipedia's goals. Please note that Wikipedia is not a free web hosting service. Under the criteria for speedy deletion, such pages may be deleted at any time.

If you think this page should not be deleted for this reason, you may contest the nomination by visiting the page and clicking the button labelled "Contest this speedy deletion". This will give you the opportunity to explain why you believe the page should not be deleted. However, be aware that once a page is tagged for speedy deletion, it may be deleted without delay. Please do not remove the speedy deletion tag from the page yourself, but do not hesitate to add information in line with Wikipedia's policies and guidelines. If the page is deleted, and you wish to retrieve the deleted material for future reference or improvement, then please contact the, or if you have already done so, you can place a request here. Hey man im josh (talk) 11:58, 29 August 2023 (UTC)