## Cryptography Homework Help

*Cryptography is a technique used in communication and information security.*

## Cryptography techniques

Modern cryptography aims to achieve the following objectives:

**Confidentiality**

**Integrity**

**Non-repudiation**

**Authentication**

Since the sender and the receiver are familiar with each other, they can easily confirm each other’s identity and the destination or origin of the message. Cryptosystems are the procedures and protocols that mean some of the criteria mentioned above. Cryptosystems often refer to mathematical procedures and computer programs only.

## Cryptographic Algorithms

## Our Cryptography Assignment Help caters to the following types of cryptography

**Single-key (symmetric- key) encryption
**

**Stream cipher**

**Block cipher**

In a block cipher algorithm, data is divided into blocks and encrypted one block at a time. The blocks are often 64-bit. However, newer algorithms sometimes use 128-bit blocks. An example of symmetric-key cryptography includes Advanced Encryption Standard (AES), which is a specification established in November 2001 by the National Institutes of Standards and Technology as a Federal Information Processing Standard (FIPS197).

This standard was created to protect sensitive information and was mandated by the US government. It is widely used in the private network.

### Public-key (asymmetric-key) encryption

*Public key encryption uses a pair of keys, public and private keys which are frequently but not necessarily interchangeable.*

- The public key is associated with the creator or sender of the message.

- The private key used for decryption and is known and shared by the sender.

Several protocols depend on asymmetric cryptography. This includes the protocols that make HTTPS possible like

- Transport Layer Security (TLS)

- Secure Socket Layer (SSL).

The main benefit of asymmetric cryptography is increased data security. It does not require users to reveal or share their private keys. For this reason, there is a reduced chance of a cybercriminal discovering a user's private key during transmission.

Our help with cryptography assignment covers all concepts related to asymmetric cryptography.

The public key can be used by anyone to encrypt a message which can be deciphered by the intended recipient using their private key. You can use the recipient's public key to encrypt a message before sending it if you want to send an encrypted message.

The message will be decrypted using the recipient’s private key. Similarly, a sender can encrypt a message using their private key, then the recipient will use the sender's public key.

## How does asymmetric cryptography works?

*These keys are used for encryption and decryption.*If the sender uses a public key for encryption, then the related private key will be used for decryption. Similarly, if the sender uses a private key for encryption, then decryption can only be done using the related public key.

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### Growing concerns of Cryptography

## Contact us for instant Cryptography Project Help on the following topics

- Cryptosystems
- Security against plaintext attacks
- Symmetric key cryptography
- Symmetric ciphers
- Cryptanalysis
- Problems of secret communication
- Message Authentication Codes
- Differential and linear cryptanalysis
- Hash function
- Web security
- Data encryption standard
- Cryptographic natives
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