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Parallelizable Encryption Mode with Almost Free Message Integrity
Block Cipher (e.g. AES)
Cipher Block Chaining Mode (CBC)
Authentication Codes using Block Ciphers (CBC MAC)
CBC Encryption & CBC-MAC together ??
CBC Encryption & CBCMAC together ??
CBC Encryption & CBC-MAC together ??
CBC Encryption & CBC-MAC together ??
Irreducible poly in GF2 -- x^5 + x^3 +1
New Scheme
Generating the Random Sequence
Pairwise Independent Random Sequence
Generating the Pairwise Independent Random Sequence (Subset Construction)
IACBC Mode of Operation
IAPM (Parallelizable Mode)
IAPM (Parallelizable Mode)
IAPM (Parallelizable Mode)
IAPM (Parallelizable Mode)
IAPM (Parallelizable Mode)
Provable Security
Secure Channel ?
Impossibility Results
Pairwise Differentially Uniform
Examples
Examples
Example (Contd)
IAPM (Parallelizable Mode)
Advantages of i*a mod p
Advantages of i*a mod p (contd) (Parallel Implementation)
Advantages of i*a mod p (contd) (Parallel Implementation)
IAPM (Parallelizable Mode)
Subset Construction
Gray Code
Gray Code Construction
+/- of Subset Construction
GF(2^n)
+/- of GF(2^n) construction
Performance
Hardware performance
Test Vectors
Patents
IAPM: secure and efficient