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Siddhi Aron
Posts: 10
Posted 20:15 May 12, 2017 |

Hello Friends/Mam

Did anyone solve Robin Cryptosystem from Lecture PPT #17, Slide #8?

I tried to solved with the help of CRT but i am not getting correct answer.

Please advicse.!

Thank you

Amedrano
Posts: 80
Posted 20:19 May 12, 2017 |

I have the same question.

Siddhi Aron
Posts: 10
Posted 20:29 May 12, 2017 |

Thanks to look into.

I stuck at finding Multiplicative inverse of 23 mod 7( by Fermat's Theorem)

I am not able varify the answer.

hpguo
Posts: 139
Posted 10:06 May 13, 2017 |
Siddhi Aron wrote:

Thanks to look into.

I stuck at finding Multiplicative inverse of 23 mod 7( by Fermat's Theorem)

I am not able varify the answer.

23^(-1) mod 7 = 23^(7-2) mod 7 = 4

Siddhi Aron
Posts: 10
Posted 11:14 May 13, 2017 |
 

23^(-1) mod 7 = 23^(7-2) mod 7 = 4

But when i cross check the answer by putting 4 inplace of 23, i get answer 2.! 

I should get 23.

hpguo
Posts: 139
Posted 15:04 May 14, 2017 |

4 * 23 mod 7 =1

How did you verify it?

Dr. Guo