cannot decrypt String from text file [closed]

In my journey to mastering Java, I started doing some AES encryption and decryption, but ran into some problems. I can encrypt and decrypt just fine using my 2 methods below. public static byte[] …

Send Data between client and server as a byte array

I am trying to send encrypted data between a client and server. Due to the RSA encryption its in Byte array form. This means I have had to change the way I send data. I curently cant get it working, …

Encryption/Decryption with bouncycastle-java and RSAES-OAEP

I am not an expert with encryption, but i am trying to create an CMSEnvelopedDataGenerator with bouncycastle 1.67, where the session key is encrypted with RSAES-OAEP (1.2.840.113549.1.1.7) For now my …

platform.win32.Win32Exception: The data is invalid | Java

I was writing this code to restore the user’s saved chrome passwords and display them on the console. I was able to decode Base64 encoded. But I am failing in decrying from this Crypt32Util….

Decrypt using AES-256-ECB in Java

I have encrypted the string in PHP using AES-256-ECB. $sString = “test” $sEncryptionMethod = “AES-256-ECB”; $sEncryptionKey = “mysecretkey”; openssl_encrypt($sString, $…

Getting BadPaddingException due to byte[] too long to decipher

The following code is tested for short strings, in that case it decrypts the string nicely. byte[] ciphertext = Base64.decode(myverylongstring,Base64.DEFAULT); SecretKeySpec secretKeySpec = new …

Encrypted (base64) password not storing in database hsql

I’m trying to simply store an base64 encripted password in database from an input in Java Web App. I’m using hsqldb for this and my password column type is varbinary(255). But when I try to store …

Decrypt a Java AES encoded String in Dart

I need to decrypt an AES (PKCS#7) encoded string in my Flutter mobile application. The string is got from a QR Code, which has been generated from a Java application and contains the AES encoded …

Is there a way to encrypt/decrypt using Bouncy Castle without using compression

I’m looking for a way to encrypt/decrypt files/byte arrays without calling compression of input. To be more precises don’t want to use something like ByteArrayOutputStream bOut = new …

Encrypt password fields in mongodb

I have following code, it insert the userName and password into database but the password is stored in plain text format. I mean when I’ll look into the db I can see the inserted password. I want to …