Create Mask Generation Function (MGF1) from PKCS #1 v2.2 standard (B.2.1) at below link. Input will be character array (mgfSeed) which will need to be converted to octet array using UTF-8 representation. Output must be octet array (uint8) of length, maskLen (input). Hashing must use SHA-1 (160 - 20 byte).
For example:
mgfSeed = 'I like to swim.';%input
maskLen = 20;%input
mask = [170,251,101,210,23,101,10,242,193,163,174,148,104,138,228,245,52,234,0,195];%output
See: https://www.foo.be/docs/opensst/ref/pkcs/pkcs-1/pkcs-1v2-1d1.pdf
Solution Stats
Problem Comments
1 Comment
Solution Comments
Show comments
Loading...
Problem Recent Solvers4
Suggested Problems
-
Given an unsigned integer x, find the largest y by rearranging the bits in x
2003 Solvers
-
Project Euler: Problem 3, Largest prime factor
1794 Solvers
-
694 Solvers
-
664 Solvers
-
7 Solvers
More from this Author63
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
For anyone trying this problem, you will probably have to implemment I2OSP too from the documentation, which is a function to convert a decimal number to base 256 of fixed length. Follow the specs to the letter.