how to create random number of 64 bit length like this for example'B8​FF5AF858E2​746937204F​B9C8B102D7​ECC50A60B4​BA3944AC7A​9F3C2DD4C4​EF'

how to create random number of 64 bit length like this for example'B8FF5AF858E2746937204FB9C8B102D7ECC50A60B4BA3944AC7A9F3C2DD4C4EF'

Answer 1

[Guillaume]

That number is not 64-bit long. It is 64 hexadecimal characters long, which would be 64*8 = 512 bits!

To create a 64-character random string:

characters = ['0':'9', 'A':'F'];  %list of characters allowed in the string
randstring = characters(randi(numel(characters), 1, 64))

Note that it is not possible to store a 512-bit number in base matlab other than as a string.

[moni sinha]

how to read the first record saved in m30.txt and do hashing using sha128 anddo bitxor operation with random number hashed value)of 64 bit hexadecimal