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Level 3 RSA Course: Understanding the Basics
Level 3 RSA Course: Understanding the Basics
Welcome to the Level 3 RSA course, where we delve deep into the world of cryptography and explore the intricacies of RSA encryption. RSA (Rivest–Shamir–Adleman) is a widely used encryption algorithm that is crucial for securing data transmission over the internet. Let's take a closer look at the fundamentals of Level 3 RSA and how it works.
Key Components of Level 3 RSA:
| Component |
Description |
| Public Key |
Used for encryption and known to everyone |
| Private Key |
Used for decryption and kept confidential |
| Prime Numbers |
Large prime numbers used for key generation |
How RSA Encryption Works:
RSA encryption involves the following steps:
- Generate two large prime numbers, p and q.
- Calculate n = p * q, which is used as the modulus for both the public and private keys.
- Calculate the totient of n, φ(n) = (p-1) * (q-1).
- Select an integer e such that 1 < e < φ(n) and gcd(e, φ(n)) = 1; this is the public key.
- Calculate d as the modular multiplicative inverse of e modulo φ(n); this is the private key.
- Encrypt a message m using the public key (n, e) to get the ciphertext c = m^e mod n.
- Decrypt the ciphertext c using the private key (n, d) to get the original message m = c^d mod n.
Conclusion:
Level 3 RSA encryption is a powerful tool for securing data and communications in the digital age. By understanding the key components and working principles of RSA, you can appreciate the importance of encryption in safeguarding sensitive information. Dive deeper into the world of cryptography and explore the endless possibilities of Level 3 RSA!
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