aes

问题 I am currently working on transforming my C# AES-GCM cryptography code to PHP. However, after some research, the text encrypted by my PHP system cannot be decrypted by the C# one. I want to know if there is any difference from both codes: C# with BouncyCastle: using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Engines; using Org.BouncyCastle.Crypto.Modes; using Org.BouncyCastle.Crypto.Parameters; using Org.BouncyCastle.Security; using System; using System.IO; using System.Text; /

问题 I am currently working on transforming my C# AES-GCM cryptography code to PHP. However, after some research, the text encrypted by my PHP system cannot be decrypted by the C# one. I want to know if there is any difference from both codes: C# with BouncyCastle: using Org.BouncyCastle.Crypto; using Org.BouncyCastle.Crypto.Engines; using Org.BouncyCastle.Crypto.Modes; using Org.BouncyCastle.Crypto.Parameters; using Org.BouncyCastle.Security; using System; using System.IO; using System.Text; /

问题 I'm facing an issue trying to Decrypt a string which has been encrypted in Java with the following properties (Java code) public static Builder getDefaultBuilder(String key, String salt, byte[] iv) { return new Builder() .setIv(iv) .setKey(key) .setSalt(salt) .setKeyLength(128) .setKeyAlgorithm("AES") .setCharsetName("UTF8") .setIterationCount(1) .setDigestAlgorithm("SHA1") .setBase64Mode(Base64.DEFAULT) .setAlgorithm("AES/CBC/PKCS5Padding") .setSecureRandomAlgorithm("SHA1PRNG")

问题 I'm facing an issue trying to Decrypt a string which has been encrypted in Java with the following properties (Java code) public static Builder getDefaultBuilder(String key, String salt, byte[] iv) { return new Builder() .setIv(iv) .setKey(key) .setSalt(salt) .setKeyLength(128) .setKeyAlgorithm("AES") .setCharsetName("UTF8") .setIterationCount(1) .setDigestAlgorithm("SHA1") .setBase64Mode(Base64.DEFAULT) .setAlgorithm("AES/CBC/PKCS5Padding") .setSecureRandomAlgorithm("SHA1PRNG")

问题 I'm facing an issue trying to Decrypt a string which has been encrypted in Java with the following properties (Java code) public static Builder getDefaultBuilder(String key, String salt, byte[] iv) { return new Builder() .setIv(iv) .setKey(key) .setSalt(salt) .setKeyLength(128) .setKeyAlgorithm("AES") .setCharsetName("UTF8") .setIterationCount(1) .setDigestAlgorithm("SHA1") .setBase64Mode(Base64.DEFAULT) .setAlgorithm("AES/CBC/PKCS5Padding") .setSecureRandomAlgorithm("SHA1PRNG")

问题 I want to decrypt a string that has been encrypted with openssl on the server like this: openssl enc -e -aes-256-cbc -pbkdf2 -a -S 0123456789ABCDEF -A -k mypassword Note this is done providing only a salt and password, and openssl should handle key and IV automatically. Am I too optimistic that this can happen when the browser decrypts too? If at all possible, I want to do it with only those encryption settings, or the bare minimum of increased complexity. In the browser, I'm trying to

问题 I'm trying to use aes-128-cbc encryption with openssl, and I would expect that the key needs to be 32 digits. However, I noticed that when I put in a key length of 18, openssl does not give me an error. echo hello | openssl enc -aes-128-cbc -A -a -nosalt -K 123456789012345678 -iv 66666666666666666666666666666666 output:zBN+65infn74QK+prfY6kw== But if I add 0's after the key until it's 32 digits, I still get the same result. echo hello | openssl enc -aes-128-cbc -A -a -nosalt -K

问题 I am using Java AES encryption using SecretKeySpec(byte[] key, String algorithm) to generate a Key object. After I encrypt something, I want to remove the Key from memory. I can remove all references to the Key, but that does not guarantee that the key is not floating somewhere in memory. I can "zero out" the byte[] array that I used to generate the Key, but how can I zero out or flush the actual Key memory. 回答1: There doesn't appear to be a way to do this in Java versions up to 7, but it has

问题 I'm working on an application with a very specific encryption requirement: We are required to encrypt/decrypt individual 64-bit values, to protect certain parts of our internal architecture from reverse engineering through our public web endpoints. The problem is, the existing 64-bit encryption methods (such as 3DES) are not secure enough to meet our requirements (as far as I know). They also perform slower than AES, which is another painpoint. My question is, can we feasibly implement AES

问题 I'm having some issues with my code whereby I am not using the same IV for encryption and decryption. I know in order to do this correctly I have to write the IV to my output file before the data however I am struggling implementing this. Could anyone help me with this issue? Edited code code again to show full scope public class TestFileEncryption { private static void mainCrypto(int cipherMode, File inputFile, File outputFile) throws Exception{ //Let the user enter the key they wish to use