How cryptography works

Flow Chart: Cryptography Process

1. Start

- Begin the cryptographic process.

2. Plaintext Message

- Input the original message, e.g., "Hello, World!"

3. Encryption Algorithm

- Select the encryption algorithm (e.g., AES, RSA).

4. Key Generation

- Generate or input the encryption key (e.g., a secret key for AES).

5. Encryption Process

- Encrypt the plaintext using the encryption algorithm and key.

- Result: Ciphertext (e.g., "U2FsdGVkX1+K3VZ8l/5F8w==")

6. Ciphertext

- Output the encrypted message.

7. Transmission

- Transmit the ciphertext securely over the network.

8. Reception

- Receive the ciphertext at the recipient's end.

9. Decryption Algorithm

- Select the decryption algorithm (matching the encryption algorithm).

10. Key for Decryption

- Use the same key (or a corresponding key in case of asymmetric encryption) for decryption.

11. Decryption Process

- Decrypt the ciphertext using the decryption algorithm and key.

- Result: Original plaintext message (e.g., "Hello, World!")

12. Plaintext Output

- Output the decrypted message.

13. End

- End the cryptographic process.

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Example Flow Chart Description

1. Start

- Initiate the process.

2. Plaintext Message

- "Hello, World!"

3. Encryption Algorithm

- AES (Advanced Encryption Standard)

4. Key Generation

- Secret Key: "mySecretKey123"

5. Encryption Process

- Encrypt "Hello, World!" using AES and "mySecretKey123".

- Ciphertext: "U2FsdGVkX1+K3VZ8l/5F8w=="

6. Ciphertext

- "U2FsdGVkX1+K3VZ8l/5F8w=="

7. Transmission

- Send the ciphertext over the network.

8. Reception

- Receive the ciphertext "U2FsdGVkX1+K3VZ8l/5F8w==".

9. Decryption Algorithm

- AES

10. Key for Decryption

- Secret Key: "mySecretKey123"

11. Decryption Process

- Decrypt "U2FsdGVkX1+K3VZ8l/5F8w==" using AES and "mySecretKey123".

- Plaintext: "Hello, World!"

12. Plaintext Output

- "Hello, World!"

13. End

- Process complete.