Encryption is the process of transforming plaintext using a cipher into ciphertext to make it unreadable to anyone except those possessing the key. Decryption is the process of transforming that ciphertext back into plaintext, using the key.

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RSA key pair generator in “C” - HELP [closed]

So, here's my problem. Every single library i try to compile (OpenSSL, WolfSSl, PolarSSL) an other not very know gives me error on compiling to. Everthing gives the compiler a reason to just don't ...
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how do u find the encryption/hash technique used in a string ? [closed]

here I have a String %63%6f%6d%6d%65%6e%74%65%64%20%63%61%6c%6c%20%74%6f%20%64%65%66%69%6e%65%64%20%6c%65%74%6d%65%69%6e%61%67%65%6e%74%6a%61%78%28%29 how to find the hash/encryption technique used to ...
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88 views

Is there an encryption that is only reversible with a key?

I'm thinking about man-in-the-middle attacks during a website login, and started wondering about reversible encryption. What I'm imagining is an encryption that takes input ...
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150 views

Storing the activation status of a product and expire details Android [closed]

In my Android application, it's required to store the activation status of the software and keep track of the activation expire date. What is the best way to store this information? Is it safe to ...
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252 views

Which encryption method used to crypt this text? [closed]

This is encrypted text: http://pastebin.com/bsHQ3Xvs It starts with <~ and ends with ~> What's the name of this encryption method?
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Why would cryptography fall apart if there were a finite number of primes? [on hold]

I vaguely know that prime numbers are very important in cryptography, but I assume for most encryption methods, they tend to stay rather 'small'. Are we really using massive prime numbers for ...
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257 views

Multi layer encryption with ECB mode [closed]

if i use the 2 of the same key with 2 of the same algoritm when encrypting in ECB like when i have 2 blocks of the same color and i encrypt the 2 blocks with the same color the cipher text should not ...
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34 views

Many Time Attack [closed]

How i can XOR these two cipher texts encrypted by using same key First ...
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1answer
267 views

AES implementation in java that allows key of 320-bit length [closed]

I need an implementation of AES(Rijndael) in java that allows use of a 320-bit key. Please suggest a reliable implementation
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64 views

Unbreakable code and mathematical impossibility

Is an unbreakable code mathematically possible , considering a code with finite number of characters but has infinite combinations , using brute force is it not compulsory that the correct code be ...
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101 views

My own encryption algorithm - if someone can brake [closed]

I wrote recently my own encryption algorithm. I want to test it so, since I know that here are a lot of professionals, I will write here some encrypted text and if someone is able to decrypt it please ...