EME-OAEP decoding by reversing the Feistel network using previously determined mask generation function (MGF1) and SHA-1 hashing. A matrix of octets is provided as the input (EM) which is the output of EME-OAEP encoding (see problem 44964/below link, section 9.1.1.2). The label (L) is not provided or checked against the encoded label. No error checks should be conducted. Output should be the character string represented by the octets.
For example:
EM = [0,167,202,74,98,63,234,235,44,82,53,39,70,214,204,79,45,80,35,147,55,32,35,39,45,...
87,180,129,63,219,223,165,72,19,131,160,131,131,107,231,157,238,213,10,237,132,55,...
35,182,202,151,21,82,130,121,35,14,35,75,255,236,72,45,210,0,243,57,43,137,79,9,...
217,83,81,227,171,156,105,168,121,224,201,41,98,84,79,3,247,109,100,214,227,120,...
148,12,50,108,248,32,94];%input
M = 'I like to swim.';%output
See: https://www.foo.be/docs/opensst/ref/pkcs/pkcs-1/pkcs-1v2-1d1.pdf
Solve

Solution Stats

8 Solutions

4 Solvers

Last Solution submitted on Oct 15, 2025

Last 200 Solutions

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers4

George Berken David Hill Rafael S.T. Vieira HighPhi

Suggested Problems

More from this Author61

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!