Project eStream (configuration)_eac3

Configuration settings for eStream project in EACirc:

• EASTREAM
  • USAGE_TYPE
    determines how to use eStream
    101: distinguisher mode - tries to evaluate distinguisher between 2 streams of data
    102: key predictor mode - not working at the moment
    103: bits to change mode - not working at the moment
  • CIPHER_INIT_FREQ
    0: ciphers are initialized with IV and key just once, at the beginning of computation
    1: ciphers are reinitialized with new IV and key for every test set
    2: ciphers are reinitialized with new IV and key for every test vector
    Note: State saving and loading not supported when CIPHER_INIT_FREQ = 0 due to inability to extract internal cipher state.
  • ALGORITHM_1
    algorithm to use (see table of ciphers)
    99: random input
  • ALGORITHM_2
    2nd algorithm to use (if 2 are needed; see table of ciphers)
    99: random input
  • BALANCED_TEST_VECTORS
    1: test vectors are balanced (50% algorithm_1, 50% algorithm_2)
    0: test vectors may not be balanced (ratio of test vector sources determined randomly, changes every test set)
  • LIMIT_NUM_OF_ROUNDS
    1: algorithms will run only a limited number of rounds
    0: algorithms will run unrestrained, i.e. as originally designed
  • ROUNDS_ALG_1
    number of rounds for the 1. algorithm (if limited)
  • ROUNDS_ALG_2
    number of rounds for the 2. algorithm (if limited)
  • PLAINTEXT_TYPE
    plaintext content for ciphers
    0: stream of zeroes
    1: stream of ones
    2: stream of random data
    3: stream of biased random data
    4: counter incremented by one for each vector
    5: five bits flipped for each vector - input is vector of one's, with 5 bits flipped to zero on random positions
    6: first half is random, second is identical to the first but for one bitflip
  • KEY_TYPE
    key content for ciphers (see plaintext types 0-3)
  • IV_TYPE
    initialization vector content for ciphers (see plaintext types 0-3)
  • GENERATE_STREAM
    0: normal mode
    1: datastream generation mode - generate stream of ciphertexts according to settings (used for statistical testig, e.g. Dieharder) Data will be saved to file.
    Note: This mode breaks the consistency of generators and therefore prevents the evolution from starting after finishing stream generation.
  • STREAM_SIZE
    0: generate unlimited stream (is sent to cout instead of file)
    n: minimal size of generated stream (in bytes, saved to file)
    Note: This directive is considered only if GENERATE_STREAM=1.
  • GENERATOR_FOR_RAND_STREAM
    1: QRNG - quantum based generator
    2: BIAS - generate biased data
    3: MD5 - generator uses MD5
    4: LUT - generator based on our own LUT cipher