-
Chiavi segrete (seconda parte)
- La matematica non è un problema 4
- Narrated by: Stefano Pasquero
- Length: 38 mins
Failed to add items
Add to Cart failed.
Add to Wish List failed.
Remove from wishlist failed.
Adding to library failed
Follow podcast failed
Unfollow podcast failed
Prime members: New to Audible?Get 2 free audiobooks during trial.
Chiavi segrete (seconda parte)
Buy for $3.34
No default payment method selected.
We are sorry. We are not allowed to sell this product with the selected payment method
Publisher's summary
In questa puntata, la seconda dedicata alla Crittografia, racconteremo come, a partire dalla seconda metà del secolo scorso, le tecniche crittografiche abbiano avuto un'evoluzione rapidissima: a favore dei crittografi, grazie all'introduzione di cifrature basate sulle importanti scoperte fatte dai matematici sui numeri primi e le loro proprietà, mentre a favore dei crittoanalisti grazie all'introduzione dei moderni calcolatori elettronici, capaci di eseguire moltissimi calcoli matematici in tempi brevissimi.
Illustreremo come, con le nuove tecniche matematiche, è cambiato il ruolo della chiave di cifratura, e sia così nata la cosiddetta Crittografia Asimmetrica, molto più sicura della Simmetrica in auge fino a metà del secolo scorso (ma ancora molto usata). Accenneremo anche alla tanto chiacchierata ma poco conosciuta congettura di Riemann e al suo ruolo nella sicurezza della Crittografia Asimmetrica. Infine descriveremo anche una tecnica crittografica tanto innovativa quanto discussa, la Crittografia Quantistica.
Related to this topic
-
The Women
- A Novel
- By: Kristin Hannah
- Narrated by: Julia Whelan, Kristin Hannah
- Length: 14 hrs and 57 mins
- Unabridged
-
Overall5 out of 5 stars 18,541
-
Performance5 out of 5 stars 17,929
-
Story5 out of 5 stars 17,930
Women can be heroes. When twenty-year-old nursing student Frances “Frankie” McGrath hears these words, it is a revelation. Raised in the sun-drenched, idyllic world of Southern California and sheltered by her conservative parents, she has always prided herself on doing the right thing. But in 1965, the world is changing, and she suddenly dares to imagine a different future for herself. When her brother ships out to serve in Vietnam, she joins the Army Nurse Corps and follows his path.
-
5 out of 5 stars
-
WOW. Just Wow
- By Joanne DeVuono on 02-08-24
By: Kristin Hannah
-
Funny Story
- By: Emily Henry
- Narrated by: Julia Whelan
- Length: 11 hrs and 23 mins
- Unabridged
-
Overall5 out of 5 stars 1,830
-
Performance5 out of 5 stars 1,791
-
Story4.5 out of 5 stars 1,791
Daphne always loved the way her fiancé Peter told their story. How they met (on a blustery day), fell in love (over an errant hat), and moved back to his lakeside hometown to begin their life together. He really was good at telling it…right up until the moment he realized he was actually in love with his childhood best friend Petra.
-
5 out of 5 stars
-
My favorite book
- By Amazon Customer on 04-28-24
By: Emily Henry
-
The Accidental Dating Experiment
- By: Lauren Blakely
- Narrated by: Andi Arndt, Jacob Morgan
- Length: 6 hrs and 55 mins
- Original Recording
-
Overall4.5 out of 5 stars 1,000
-
Performance4.5 out of 5 stars 984
-
Story4.5 out of 5 stars 984
Eight years ago I fell into a secret summer fling with my best friend’s little sister before our lives went in different directions. Now, I’m the grumpy to Juliet’s sunshine on a popular dating podcast we host, and when a wealthy fan gives us a charming coastal cottage as the biggest thank you ever, we head to the town where I grew up to give it a makeover. And find the house has only one bed. Located under a mirrored ceiling.
-
5 out of 5 stars
-
The kind of Romance everyone needs in their collection!
- By M. Santos on 04-11-24
By: Lauren Blakely
-
George Orwell’s 1984
- An Audible Original adaptation
- By: George Orwell, Joe White - adaptation
- Narrated by: Andrew Garfield, Cynthia Erivo, Andrew Scott, and others
- Length: 3 hrs and 27 mins
- Original Recording
-
Overall4.5 out of 5 stars 3,045
-
Performance5 out of 5 stars 2,930
-
Story4.5 out of 5 stars 2,929
It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.
-
5 out of 5 stars
-
A Revelation!
- By wotsallthisthen on 04-07-24
By: George Orwell, and others
-
Atomic Habits
- An Easy & Proven Way to Build Good Habits & Break Bad Ones
- By: James Clear
- Narrated by: James Clear
- Length: 5 hrs and 35 mins
- Unabridged
-
Overall5 out of 5 stars 134,408
-
Performance5 out of 5 stars 109,772
-
Story5 out of 5 stars 108,719
No matter your goals, Atomic Habits offers a proven framework for improving - every day. James Clear, one of the world's leading experts on habit formation, reveals practical strategies that will teach you exactly how to form good habits, break bad ones, and master the tiny behaviors that lead to remarkable results. If you're having trouble changing your habits, the problem isn't you. The problem is your system. Bad habits repeat themselves again and again not because you don't want to change, but because you have the wrong system for change.
-
2 out of 5 stars
-
Author went overboard hawking his site
- By CHughes on 06-25-19
By: James Clear
-
48 Laws of Power
- By: Robert Greene
- Narrated by: Richard Poe
- Length: 23 hrs and 6 mins
- Unabridged
-
Overall4.5 out of 5 stars 23,938
-
Performance4.5 out of 5 stars 19,874
-
Story4.5 out of 5 stars 19,752
Amoral, cunning, ruthless, and instructive, this piercing work distills 3,000 years of the history of power into 48 well-explicated laws. This bold volume outlines the laws of power in their unvarnished essence, synthesizing the philosophies of Machiavelli, Sun Tzu, Carl von Clausewitz, and other infamous strategists. The 48 Laws of Power will fascinate any listener interested in gaining, observing, or defending against ultimate control.
-
5 out of 5 stars
-
You don't have to be a psychopath to like this.
- By Gaggleframpf on 02-25-16
By: Robert Greene
-
The Women
- A Novel
- By: Kristin Hannah
- Narrated by: Julia Whelan, Kristin Hannah
- Length: 14 hrs and 57 mins
- Unabridged
-
Overall5 out of 5 stars 18,541
-
Performance5 out of 5 stars 17,929
-
Story5 out of 5 stars 17,930
Women can be heroes. When twenty-year-old nursing student Frances “Frankie” McGrath hears these words, it is a revelation. Raised in the sun-drenched, idyllic world of Southern California and sheltered by her conservative parents, she has always prided herself on doing the right thing. But in 1965, the world is changing, and she suddenly dares to imagine a different future for herself. When her brother ships out to serve in Vietnam, she joins the Army Nurse Corps and follows his path.
-
5 out of 5 stars
-
WOW. Just Wow
- By Joanne DeVuono on 02-08-24
By: Kristin Hannah
-
Funny Story
- By: Emily Henry
- Narrated by: Julia Whelan
- Length: 11 hrs and 23 mins
- Unabridged
-
Overall5 out of 5 stars 1,830
-
Performance5 out of 5 stars 1,791
-
Story4.5 out of 5 stars 1,791
Daphne always loved the way her fiancé Peter told their story. How they met (on a blustery day), fell in love (over an errant hat), and moved back to his lakeside hometown to begin their life together. He really was good at telling it…right up until the moment he realized he was actually in love with his childhood best friend Petra.
-
5 out of 5 stars
-
My favorite book
- By Amazon Customer on 04-28-24
By: Emily Henry
-
The Accidental Dating Experiment
- By: Lauren Blakely
- Narrated by: Andi Arndt, Jacob Morgan
- Length: 6 hrs and 55 mins
- Original Recording
-
Overall4.5 out of 5 stars 1,000
-
Performance4.5 out of 5 stars 984
-
Story4.5 out of 5 stars 984
Eight years ago I fell into a secret summer fling with my best friend’s little sister before our lives went in different directions. Now, I’m the grumpy to Juliet’s sunshine on a popular dating podcast we host, and when a wealthy fan gives us a charming coastal cottage as the biggest thank you ever, we head to the town where I grew up to give it a makeover. And find the house has only one bed. Located under a mirrored ceiling.
-
5 out of 5 stars
-
The kind of Romance everyone needs in their collection!
- By M. Santos on 04-11-24
By: Lauren Blakely
-
George Orwell’s 1984
- An Audible Original adaptation
- By: George Orwell, Joe White - adaptation
- Narrated by: Andrew Garfield, Cynthia Erivo, Andrew Scott, and others
- Length: 3 hrs and 27 mins
- Original Recording
-
Overall4.5 out of 5 stars 3,045
-
Performance5 out of 5 stars 2,930
-
Story4.5 out of 5 stars 2,929
It’s 1984, and life has changed beyond recognition. Airstrip One, formerly known as Great Britain, is a place where Big Brother is always watching, and nobody can hide. Except, perhaps, for Winston Smith. Whilst working at the Ministry of Truth, rewriting history, he secretly dreams of freedom. And in a world where love and sex are forbidden, where it’s hard to distinguish between friend and foe, he meets Julia and O’Brien and vows to rebel.
-
5 out of 5 stars
-
A Revelation!
- By wotsallthisthen on 04-07-24
By: George Orwell, and others
-
Atomic Habits
- An Easy & Proven Way to Build Good Habits & Break Bad Ones
- By: James Clear
- Narrated by: James Clear
- Length: 5 hrs and 35 mins
- Unabridged
-
Overall5 out of 5 stars 134,408
-
Performance5 out of 5 stars 109,772
-
Story5 out of 5 stars 108,719
No matter your goals, Atomic Habits offers a proven framework for improving - every day. James Clear, one of the world's leading experts on habit formation, reveals practical strategies that will teach you exactly how to form good habits, break bad ones, and master the tiny behaviors that lead to remarkable results. If you're having trouble changing your habits, the problem isn't you. The problem is your system. Bad habits repeat themselves again and again not because you don't want to change, but because you have the wrong system for change.
-
2 out of 5 stars
-
Author went overboard hawking his site
- By CHughes on 06-25-19
By: James Clear
-
48 Laws of Power
- By: Robert Greene
- Narrated by: Richard Poe
- Length: 23 hrs and 6 mins
- Unabridged
-
Overall4.5 out of 5 stars 23,938
-
Performance4.5 out of 5 stars 19,874
-
Story4.5 out of 5 stars 19,752
Amoral, cunning, ruthless, and instructive, this piercing work distills 3,000 years of the history of power into 48 well-explicated laws. This bold volume outlines the laws of power in their unvarnished essence, synthesizing the philosophies of Machiavelli, Sun Tzu, Carl von Clausewitz, and other infamous strategists. The 48 Laws of Power will fascinate any listener interested in gaining, observing, or defending against ultimate control.
-
5 out of 5 stars
-
You don't have to be a psychopath to like this.
- By Gaggleframpf on 02-25-16
By: Robert Greene
-
The Anxious Generation
- How the Great Rewiring of Childhood Is Causing an Epidemic of Mental Illness
- By: Jonathan Haidt
- Narrated by: Sean Pratt, Jonathan Haidt
- Length: 10 hrs and 32 mins
- Unabridged
-
Overall5 out of 5 stars 490
-
Performance5 out of 5 stars 476
-
Story5 out of 5 stars 476
There is no bigger public health story now than the collapse in youth mental health. The numbers are terrifying and dominate our headlines. There has been much debate over how we got here, and what to do next, and bestselling author and social psychologist Jonathan Haidt is at the white-hot center of that discourse. Haidt has spent his career speaking wisdom and truth into the most difficult landscapes—communities polarized by politics and religion, campuses battling culture wars, and now the perfect storm contributing to a public health emergency for Gen Z.
-
3 out of 5 stars
-
Empower parents, Not governments
- By Vance V. Ginn on 04-14-24
By: Jonathan Haidt
-
Just for the Summer
- By: Abby Jimenez
- Narrated by: Christine Lakin, Zachary Webber, Abby Jimenez
- Length: 11 hrs and 43 mins
- Unabridged
-
Overall5 out of 5 stars 2,616
-
Performance5 out of 5 stars 2,524
-
Story5 out of 5 stars 2,524
Justin has a curse, and thanks to a Reddit thread, it's now all over the internet. Every woman he dates goes on to find their soul mate the second they break up. When a woman slides into his DMs with the same problem, they come up with a plan: They'll date each other and break up. Their curses will cancel each other’s out, and they’ll both go on to find the love of their lives. It’s a bonkers idea… and it just might work.
-
4 out of 5 stars
-
Good but heavy
- By Maria Olmes on 04-04-24
By: Abby Jimenez
-
The Idea of You
- By: Robinne Lee
- Narrated by: Robinne Lee
- Length: 11 hrs and 55 mins
- Unabridged
-
Overall4.5 out of 5 stars 2,931
-
Performance4.5 out of 5 stars 2,664
-
Story4.5 out of 5 stars 2,667
Solene Marchand, the 39-year-old owner of an art gallery in Los Angeles, is reluctant to take her daughter, Isabelle, to meet her favorite boy band. But since her divorce, she's more eager than ever to be close to Isabelle. The last thing Solene expects is to make a connection with one of the members of the world-famous August Moon. But Hayes Campbell is clever, winning, confident, and posh, and the attraction is immediate. That he is all of 20 years old further complicates things. What begins as a series of clandestine trysts quickly evolves into a passionate and genuine relationship.
-
5 out of 5 stars
-
Fantasy meets Reality
- By Renee on 08-08-18
By: Robinne Lee
-
First Lie Wins
- A Novel
- By: Ashley Elston
- Narrated by: Saskia Maarleveld
- Length: 9 hrs and 16 mins
- Unabridged
-
Overall4.5 out of 5 stars 11,873
-
Performance4.5 out of 5 stars 11,452
-
Story4.5 out of 5 stars 11,450
The identity comes first: Evie Porter. Once she’s given a name and location by her mysterious boss Mr. Smith, she learns everything there is to know about the town and the people in it. Then the mark: Ryan Sumner. The last piece of the puzzle is the job. Evie isn’t privy to Mr. Smith’s real identity, but she knows this job will be different. Ryan has gotten under her skin, and she’s starting to envision a different sort of life for herself. But Evie can’t make any mistakes—especially after what happened last time.
-
5 out of 5 stars
-
What’s The lie?
- By Luke Schafer on 01-13-24
By: Ashley Elston
-
A Calamity of Souls
- By: David Baldacci
- Narrated by: David Baldacci, MacLeod Andrews, Sisi Aisha Johnson, and others
- Length: 14 hrs and 28 mins
- Unabridged
-
Overall4.5 out of 5 stars 758
-
Performance5 out of 5 stars 726
-
Story4.5 out of 5 stars 726
Set in the tumultuous year of 1968 in southern Virginia, a racially-charged murder case sets a duo of white and Black lawyers against a deeply unfair system as they work to defend their wrongfully-accused Black defendants in this courtroom drama from #1 New York Times bestselling author David Baldacci.
-
5 out of 5 stars
-
Loved this book!!!!
- By shelley on 04-17-24
By: David Baldacci
-
The Perfect Son
- By: Freida McFadden
- Narrated by: Suzie Althens, Daniel Thomas May
- Length: 7 hrs and 58 mins
- Unabridged
-
Overall4.5 out of 5 stars 2,102
-
Performance4.5 out of 5 stars 1,939
-
Story4.5 out of 5 stars 1,939
Erika Cass has a perfect family and a perfect life. Until the evening when two detectives show up at her front door. A high school girl has vanished from Erika's quiet suburban neighborhood. The police suspect the worst - murder. And Erika's teenage son, Liam, was the last person to see the girl alive. Erika has always sensed something dark and disturbed in her seemingly perfect older child. She wants to believe he's innocent, but as the evidence mounts, she can't deny the truth - Liam may have done the unthinkable.
-
1 out of 5 stars
-
If you love animals give this one a miss!
- By Rachel on 08-18-22
By: Freida McFadden