aes

Java AES CBC Decryption

别说谁变了你拦得住时间么 提交于 2019-12-03 03:12:47
PHP Encrypt Function $privateKey = "1234567812345678"; $iv = "1234567812345678"; $data = "Test string"; $encrypted = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $privateKey, $data, MCRYPT_MODE_CBC, $iv); echo(base64_encode($encrypted)); Result: iz1qFlQJfs6Ycp+gcc2z4w== When I try to decrypt this result in Java using the function below, all I get back is ì�š@ÔBKxnfÈ~¯Ô'M while I am expecting "Test string". Any ideas where I am wrong? Thanks public static String decrypt() throws Exception{ try{ String Base64EncodedText = "iz1qFlQJfs6Ycp+gcc2z4w=="; String decodedText = com.sun.xml.internal.messaging

How to encrypt / decrypt AES with Libsodium-PHP

匿名 (未验证) 提交于 2019-12-03 03:08:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I need to encrypt/decrypt data with PHP. I am completely new to this, however I have read that Libsodium-PHP is the best tool for AES encryption. Much like the other PHP encryption libraries I have researched Libsoduim-PHP seemed to offer almost no documentation of how to use the library (that I was able to find). Can anyone that has experience with PHP encryption either point me in the direction of a good learning resource or write a few lines of sample code using Libsoduim-PHP? Thank you very much for the help, Atlas 回答1: Much like the

How to store the key used to encrypt files

三世轮回 提交于 2019-12-03 03:06:50
I'm playing around with an app to backup files to "the cloud" :) and I want to encrypt the files before I store them. That part I have covered, but as this app will be monitoring folders for change and uploading the changed files I need to store the key that I use to encrypt the files with. The idea is that the user provides a password and a key is generated. At the moment I'm using the .NET Framework to do the encryption. I'm using the RijndaelManaged class to encrypt/decrypt and the PasswordDeriveBytes class to get the key. But how should I keep the key that is used for encrypting the files?

java aes javax.crypto.BadPaddingException: Given final block not properly padded

匿名 (未验证) 提交于 2019-12-03 03:06:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: public class AES { public String getEncrypt(String pass){ String password = encrypt(pass); return password; } public String getDecrypt(String pass){ String key = "AesSEcREtkeyABCD"; byte[] passwordByte = decrypt(key,pass); String password = new String(passwordByte); return password; } private byte[] decrypt(String key, String encrypted) { try { SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes(), "AES"); Cipher cipher = Cipher.getInstance("AES"); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(skeySpec.getEncoded(), "AES")); /

ggplot2: add conditional density curves describing both dimensions of scatterplot

匿名 (未验证) 提交于 2019-12-03 03:06:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I have scatterplots of 2D data from two categories. I want to add density lines for each dimension -- not outside the plot (cf. Scatterplot with marginal histograms in ggplot2 ) but right on the plotting surface. I can get this for the x-axis dimension, like this: set.seed(123) dim1 <- c(rnorm(100, mean=1), rnorm(100, mean=4)) dim2 <- rnorm(200, mean=1) cat <- factor(c(rep("a", 100), rep("b", 100))) mydf <- data.frame(cbind(dim2, dim1, cat)) ggplot(data=mydf, aes(x=dim1, y=dim2, colour=as.factor(cat))) + geom_point() + stat_density(aes(x

ggplot each group consists of only one observation

匿名 (未验证) 提交于 2019-12-03 03:04:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I'm trying to make a plot similar to this answer: https://stackoverflow.com/a/4877936/651779 My data frame looks like this: df2 <- read.table(text='measurements samples value 1 4hours sham1 6 2 1day sham1 175 3 3days sham1 417 4 7days sham1 163 5 14days sham1 37 6 90days sham1 134 7 4hours sham2 8 8 1day sham2 402 9 3days sham2 482 10 7days sham2 67 11 14days sham2 16 12 90days sham2 31 13 4hours sham3 185 14 1day sham3 402 15 3days sham3 482 16 7days sham3 85 17 14days sham3 29 18 90days sham3 10',header=T) And plot it with ggplot(df2, aes

AES GCM implementation with authentication Tag in Java

匿名 (未验证) 提交于 2019-12-03 03:00:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I'm using AES GCM authentication in my android project and it works fine. But getting some issues with authentication tag when it compare with openssl API generate tag. Please find the java code below: SecretKeySpec skeySpec = new SecretKeySpec ( key , "AES" ); byte [] iv = generateRandomIV (); IvParameterSpec ivspec = new IvParameterSpec ( iv ); Cipher cipher = Cipher . getInstance ( "AES/GCM/NoPadding" ); cipher . init ( Cipher . ENCRYPT_MODE , skeySpec , ivspec ); int outputLength = cipher . getOutputSize ( data . length ); //

How do I set SSL protocol version in java? And how do I know which one? javax.net.ssl.SSLException: Received fatal alert: protocol_version

匿名 (未验证) 提交于 2019-12-03 02:54:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am using Apache HttpClient 4.3 to interact with the API of hubic.com. My minimal reproducable example is just a one liner: HttpClientBuilder.create().build().execute(new HttpGet("https://hubic.com")); However that throws: Exception in thread "main" javax.net.ssl.SSLException: Received fatal alert: protocol_version at sun.security.ssl.Alerts.getSSLException(Alerts.java:208) at sun.security.ssl.Alerts.getSSLException(Alerts.java:154) at sun.security.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.java:1991) at sun.security.ssl.SSLSocketImpl

Legend with geom_line and geom_ribbon

匿名 (未验证) 提交于 2019-12-03 02:52:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I am creating a figure where I have a line and confidence bands around it. To do this, I am using both geom_line and geom_ribbon in ggplot2 in R. The problem is how to deal with the legend. In it, slashes are added and after googling for a quite a while I understand that is a common issue. Most of the solutions I have found are for barplots (e.g. the ggplot cookbook). I have also found solutions to suppress it, but that hasn't worked for me. Below I have three plots showing the issue. First, when I only plot the line, it looks fine. Then

modified polar plot using ggplots or other alternative packages using R

匿名 (未验证) 提交于 2019-12-03 02:50:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: I am trying to create nice (!) polar plot with the following data. gr1 <- c ( 0 , 5 , 15 , 20 , 30 , 40 ) gr3 <- c ( 0 , 5 , 10 , 25 , 40 , 60 , 80 ) gr2 <- c ( 0 , 15 , 25 , 30 , 40 ) df2 <- data . frame ( pos = c ( gr1 , gr2 , gr3 ), group = c ( rep ( 1 , length ( gr1 )), rep ( 2 , length ( gr1 )), rep ( 2 , length ( gr1 )))) inner circle segment to mark first tier , group 1 , between 15 , 20 group 3 , between 5 , 10 between 40 to 60 second tier , group 1 , between 15 , 20 group 3 , between 5 , 10 between 10 , 25 between 40 to 60