DiceLock Security Blog

DiceLockIndexedCheck is a C++ program to verify that DiceLockIndexed class implementing one of DiceLock different architectures is working as expected.

DiceLockIndexed class is the class that implements DiceLock architecture with the following characteristics:
– base encryption cipher/decipher is any symmetric cipher (stream cipher or block cipher operation mode) working with just symmetric key, no initialization vector (IV) is used,
– ciphered index pointing symmetric key modification plus ciphertext is checked for random number test properties,
– any function that is able to change original symmetric key with new values generating index pointing out such modification,
– bit random number tests that can verify that encrypted ciphertext is at random.

Current algorithm classes that can be used with DiceLockIndexed architecture are:

– stream cipher: ARC4 and ARC4_Discarding (discarding initial bits),
– symmetric key changers: IncreaseBase0IndexModifier_6_0_0_1 and DecreaseBase0IndexModifier_6_0_0_1,
- random number tests: Frequency, Block Frequency, Cumulative Sum Forward, Cumulative Sum Reverse, Runs, Longest Run Of Ones, Rank, Universal, Approximate Entropy, Serial, Discrete Fourier Transform tests and random number test Suite with any or all previous enumerated random number tests.

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