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NCMF: 4.3.2b

  1. Frameworks
  2. NCMF Cyber Standards

CodeHS Lessons

In transposition ciphers the letters are not changed they are rearranged. The set of encryption functions E is simply the set of permutations of m, and the set of decryption functions D is the set of inverse permutations.

Advanced Cybersecurity
Standard
1.2 Encryption Algorithms