# สรุปหัวข้อ note จากเรื่อง Block-Cipher/Public-Key-Cryptography/Digital-Signature

**URL:** <https://discuss.hashpire.io/t/note-block-cipher-public-key-cryptography-digital-signature/258>\
**Category:** เช็คอิน 📍\
**Created:** [July 1, 2022, 10:50am UTC](https://discuss.hashpire.io/t/note-block-cipher-public-key-cryptography-digital-signature/258 "2022-07-01T10:50:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Namtan](https://discuss.hashpire.io/user_avatar/discuss.hashpire.io/namtan/32/23_2.png) [@Namtan](https://discuss.hashpire.io/u/Namtan)\
**Post date:** [July 1, 2022, 10:50am UTC](https://discuss.hashpire.io/t/note-block-cipher-public-key-cryptography-digital-signature/258/1 "2022-07-01T10:50:38Z")

</div>

# MOC Block-Cipher

- Block Cipher
- Block Cipher Construction
- Feistel Network
- MOC Operation Modes (Encryption modes)
  - ECB (Electronic Codebook) mode
  - CBC (Cipher Block Chaining) mode

- MOC Basic Operations
  - XOR, exclusion or
  - Shift and rotation
  - Permutation
  - Substitution Box (S-Box)

- MOC Basic logic gate
  - AND gate
  - OR gate
  - XOR gate
  - NOT gate
  - NAND gate
  - NOR gate
  - XNOR gate

- MOC ระบบจำนวน (Number system)
  - ระบบเลขฐานสิบ (Decimal Number System)
  - ระบบเลขฐานสอง (Binary Number System)
  - ระบบเลขฐานแปด (Octal Number System)
  - ระบบเลขฐานสิบหก (Hexadecimal Number System)

- MOC DES
  - DES
  - The Strength of DES
  - Triple DES
  - Death of DES

# MOC Public-Key-Cryptography

- Birth of Public Key Cryptography
- Secure Communication
- Public Key Encryption
- Key Pair
- Diffie-Hellman

# MOC Digital-Signature

- Background of Digital Signature
- Digital Signature Scheme