Cryptography 101 for Java developers by Michel Schudel
The amount of cryptography to make all this happen is staggering. In order to appreciate and understand what goes on under the hood, as a developer, it's really important to dive into the key concepts of cryptography .
In this session, we discover what cryptography actually is, and will use the JCA (Java Cryptography API) en JCE (Java Cryptography Extensions) in the JDK to explain and demo key concepts such as:
Message digests (hashing)
Encryption, both symmetric and asymmetric
Digital signatures, both symmetric and asymmetric
Furthermore, we'll show how these concepts find their way into a variety of practical applications such as:
https and certificates
salted password checking
block chain technology
After this session, you'll have a better understanding of basic cryptography, its applications, and how to use the cryptography APIs in Java.
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#DevoxxUK #DevoxxUK2019Комментарии:
great talk, just amazing, thank u so much
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That was simply great. But I have 1 question:
When you explained about asymmetric cryptography, you said we encrypt with the private key and decrypt with the public key
I think it's only in digital signature, When we deal with the asymmetric key we should encrypt with the public key, and the receiver decrypts with the private key, no?
Thanks
I'd recommend the Computerphile video on the mathematics of Diffie-Hellman for anyone that's interested, it's actually quite elegant :)
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the world wants to know.
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Awesome exokanation man!!
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Hi🇧🇷. This class is also an asmr. What a beautiful accent❣️
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Thank you very much. The class was excellent.
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Great presentation, thanks!
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Enigma was cracked by Polish mathematics, not by Turing FFS!
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Very nice Video, but one hint: The public key ist not shorter than the private key because it is an asymmetric method. It is shorter because the private key consists all informations/numbers and the public key only a part of it.
With OpenSSL you normally generate a (private) key. And with a second call you exctract the public key from this private key.
Cryptography at first place sounds so complex but Michel has made it so simple. Any novice would get a good sense of it just in 40 minutes. Thanks Michel.
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What if a bill of legislation has amended a hash and a block key. That is coded me as $ine & die dead and can't get id amd Evan if I did the hash will not let me inter it in and confirm in the s
ОтветитьExept Alice is blocked from hash
ОтветитьTo bad thay dident listen to you..becouse every body's alkalizing me.basicly I'm paying a monthly phone bill and spending all my time paying magority of humans to make money depleting me of money hacking my hash and blocking me ,paying tibget fu$%% in the ass,just to be voted out of existence, nic
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Very informative and simple video to follow, thank you!
One quick question though which might sound a bit noob-ish: What's the point behind adding a "name: " before the string inside the parameter of Utils's functions? Whenever I try that out, it gives me errors.
EDIT: Apparently it's an IntelliJ feature, never used it before so makes sense why I was thrown off by it.
That was simply great.. In short time covered a lot with examples.. thumbs up!!!
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Great talk
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19.9 The decryption might have been happening in some other machine. How will it get the same 'key' object?
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