Questions tagged as 'criptografia'

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How to encrypt a file using C #?

I need to create a function to encrypt files using the Caeser method without using the functions already done in the C # library. My code does not work for large files the computer crashes: public static void cesar(string origem, string destin...
asked by 06.09.2017 / 20:31
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Decrypt IMAP email?

I am receiving emails in my application through IMAP, and everything is showing up the right way except the text that is encrypted, how do I decrypt or configure it to not be encrypted ?? I am using the node-imap library to receive and the...
asked by 22.08.2017 / 22:37
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What is a cipher?

Several times I find some questions related to numbers here in SO en . However I did not find any definition of it. So, What would be a cipher and what is its function? I saw that there are several types. Are they related to encryption...
asked by 12.07.2017 / 15:48
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Problems logging in using the crypt () function in PHP

I'm returning to the PHP world after a long winter. I took an example user registry that uses MD5 as the encryption standard and now I'm trying to login to a test user because I need to change the default to crypt (Blowfish). The password rec...
asked by 12.07.2017 / 01:34
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Rijndael encoding with base 64 in C #

I'm doing a Rijndael encryption and I imagine I'm close to finishing it, but when decrypting I get the error:    Invalid length of data to be decrypted. using System.Text; using static Array; class EncoderRijndael { public static Ri...
asked by 06.07.2017 / 22:03
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How to encrypt data in App.config

I would like to encrypt the keys (ApiKey and Secret) below in App.config: <?xml version="1.0" encoding="utf-8" ?> <configuration> <startup> <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1" />...
asked by 02.07.2017 / 18:25
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Encrypt password in groovy

I am developing an application that will have a login screen that will be based on data (user, password) already saved in a MySQL database, / em> that was used the first time to encrypt the user's password to validate if the user who is trying...
asked by 10.05.2017 / 22:33
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Where to save private key generated in WebService?

I have the following scenario:    (and unfortunately I can not change anything on the infrastructure, but I can change anything about the Application and WebService code) AnIntranetwithmultipledatabasesthatcanonlybeaccessedbythosewithi...
asked by 24.04.2017 / 22:52
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Encrypt JS / PHP GET parameter

What is the best way to traffic data between JS and PHP Fri GET method? Imagine a $ http request made in angularjs passing paramentos ex: minhaurl? Id = 2 & nome="joao" The ideal would be to encrypt the parameters. But BASE64 is flawed o...
asked by 29.01.2017 / 03:16
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How to return to the beginning of an Array in C #

I have to develop a code where it does the Cipher of Cesar encryption, the characters that I should use should be in this sequence; A ~ Z, (whitespace), 0 ~ 9. I already developed a lot of the code, but I came across a problem; for (int i = 0;...
asked by 23.11.2016 / 17:14