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Quick Facts About Rijndael

Rijndael can use different block sizes, but AES uses a fixed block size of 128-bits.

So for AES, the block size must always be 128-bits!!!

Key Size Block Size

128 128 192 128 256 128

Basic Information

  • Official NIST standard

  • Won first place out of 15 other AES contestants

  • Pronounced “Rhine Dall”

  • Named after its developers Vincent Rijmen and Joan Daemen

  • Rijndael is the actual name of the algorithm, AES is the standard

  • Symmetric block cipher

  • Proved to have the best security, speed, and scalability

  • Stronger than DES and 3DES

  • Supports 128, 192, 256-bit keys

  • Can be used by the government to protect sensitive but unclassified data as well as secret and top secret

  • Rijndael allows the use of block size same as key size.


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