Cody

Rafael S.T. Vieira

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Rafael S.T. Vieira submitted a Comment to Problem 44963. Mask Generation Function (MGF1) for PKCS #1 Standard utilizing Optimal Asymmetric Encryption Padding for RSA Cryptography

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.

3 hours and 1 minute ago

Rafael S.T. Vieira submitted a Comment to Problem 44961. RSA decryption

Similar to the first https://www.mathworks.com/matlabcentral/cody/problems/44959-rsa-encryption-using-public-key It is necessary to convert the number obtained back from base 256 to base 10.

5 hours and 19 minutes ago

Rafael S.T. Vieira liked Problem 44961. RSA decryption

5 hours and 20 minutes ago

Rafael S.T. Vieira submitted Solution 3353333 to Problem 44961. RSA decryption

5 hours and 21 minutes ago

Rafael S.T. Vieira submitted a Comment to Problem 44959. RSA encryption using public key

A better answer to William (and for people that don't use Java) would be that after converting numbers to uint8, we must transform a vector into a single number using base 256. That means that a word like 'ball' becomes [98, 97, 108, 108] and then 98*256^3 + 97*256^2 + 108*256 + 108 = 1650551916.

7 hours and 6 minutes ago

Rafael S.T. Vieira submitted a Comment to Problem 47043. Find the Arc Length of the Curve Defined by the Parametric Functions

Recommended https://blogs.mathworks.com/cleve/2013/10/14/complex-step-differentiation/

12 hours and 50 minutes ago

Rafael S.T. Vieira liked Problem 42588. Derivative function

22 hours and 34 minutes ago

Rafael S.T. Vieira submitted a Comment to Problem 46918. Numerical differentiation with high precision

Nice problem. And thanks for the tip about Cleve's article and paper.

22 hours and 38 minutes ago

Rafael S.T. Vieira submitted Solution 3341123 to Problem 46928. PRIME GENERATOR

23 hours and 1 minute ago

Rafael S.T. Vieira submitted Solution 3341093 to Problem 47008. NaN

23 hours and 5 minutes ago

Rafael S.T. Vieira submitted Solution 3341088 to Problem 47038. imaginary

23 hours and 5 minutes ago

Rafael S.T. Vieira submitted Solution 3341083 to Problem 47033. Real

23 hours and 6 minutes ago

Rafael S.T. Vieira submitted Solution 3341078 to Problem 47028. Size

23 hours and 6 minutes ago

Rafael S.T. Vieira submitted Solution 3341073 to Problem 47018. Matrix operation

23 hours and 6 minutes ago

Rafael S.T. Vieira submitted Solution 3341063 to Problem 47013. Swap

23 hours and 8 minutes ago

Rafael S.T. Vieira liked Problem 44940. Get Next Combination

23 hours and 29 minutes ago

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