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• What is encryption

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(Secret key Encryption)

• Encryption Algorithms
   • Types of encryption algorithms
    Symmetric algorithms (Secret key)
      • AES (Advanced Encryption Standard)
      • Blowfish
      • CAST5
      • DES (Digital Encryption Standard)
      • IDEA
      • RC2
      • RC4
      • RC6
      • Serpent
      • Triple DES
      • Twofish
    Asymmetric algorithms (Public key)
      • RSA
      • Diffie-Hellman
      • Digital Signature Algorithm
      • ElGamal
      • ECDSA
      • XTR
   • Symmetric vs asymmetric algorithms
   • Strength of cryptographic algorithms

• Attacks on cryptosystems

• Multiple encryption

• Public key Encryption

• Encryption Glossary

Secret Key Algorithms

What is a secret key algorithm?
Types of secret key algorithms
Secret key algorithms

What is a secret key algorithm?

Secret key algorithms use the same key for encryption and decryption (or the decryption key is easily derived from the encryption key), whereas public key algorithms use a different key for encryption and decryption, and the decryption key cannot be derived from the encryption key.

Secret-key algorithms are generally much less computationally intensive than public key algorithms.

Types of secret key algorithms

Secret key algorithms can be divided into two types - stream ciphers and block ciphers. Stream ciphers encrypt a single bit of plaintext at a time, whereas block ciphers take a number of bits (typically 64 bits in modern ciphers), and encrypt them as a single unit.

Secret key algorithms

AES/Rijndael
Blowfish
CAST5
DES
IDEA
RC2
RC4
RC6
Serpent
Triple DES
Twofish





Asymmetric algorithms
Public key algorithms
Secret key algorithm
Block ciphers
DES encryption
Advanced Encryption Standard
Multiple encryption
AES encryption
Blowfish encryption
Public key Encryption
Symmetric algorithms
RC4 encryption
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