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I understand that AES-CBC uses the following scheme for encrypting data (diagram from Wikipedia):
And, I understand that we don’t want initialization vectors to be predictable or constant, and also that you don’t want it to just be a plai… Continue reading Using AES-CBC with a random number plus a counter for the IV [migrated]
I’m assuming that OpenSSL is just using these functions here. page 66 is CBC
https://www.intel.com/content/dam/develop/external/us/en/documents/aes-wp-2012-09-22-v01-165683.pdf
Can I just generate a key/iv randomly and pass data off with t… Continue reading Assembly routine for AES CBC encrypt
I’m assuming that OpenSSL is just using these functions here. page 66 is CBC
https://www.intel.com/content/dam/develop/external/us/en/documents/aes-wp-2012-09-22-v01-165683.pdf
Can I just generate a key/iv randomly and pass data off with t… Continue reading Assembly routine for AES CBC encrypt
I’m assuming that OpenSSL is just using these functions here. page 66 is CBC
https://www.intel.com/content/dam/develop/external/us/en/documents/aes-wp-2012-09-22-v01-165683.pdf
Can I just generate a key/iv randomly and pass data off with t… Continue reading Assembly routine for AES CBC encrypt
public static byte[] encrypt(String message, String password) throws Exception {
SecureRandom rand = new SecureRandom();
try (ByteArrayOutputStream out = new ByteArrayOutputStream()) {
try (DataOutputSt… Continue reading Does men in the middle is possible with this code : AES/CBC with HMAC? [closed]
My information security model right now is "if you want the data that I am storing on the cloud, you can have it" and I would like to change that to "if you want the data and have a $5 wrench, you can have it." To that … Continue reading Is rsyncrypto secure?
I’m trying to understand the exploitability of the padding oracle attack, which enables someone to decrypt and encrypt the contents without knowing the encryption key.
Can encrypted data with the first block, be decrypted by the app that … Continue reading Padding Oracle Attack – Decrypting First Block with Static IV [migrated]
I have this message "Hello from another world"
Can you explain how to encrypt it with CBC step by step?
Are the message characters H, E, L, L, O .. converted to binary first, then every 8 bits or 16 bits XORed with IV and passe… Continue reading can you help me to understand CBC mode encryption [migrated]
In order for a server to be vulnerable to the LUCKY13 exploit, it has to use a ciphersuite which uses CBC and must not use the encrypt_then_mac TLS extension. However, if both these conditions are satisfied, is the server necessarily vulne… Continue reading Is a server using CBC without the encrypt_then_mac TLS extension necessarily vulnerable to the LUCKY13 attack?
so as the title describes, i am trying to get the IV using the key, encrypted data, and plaintext data.
According to wiki, AES CBC uses the IV to XOR the first block of plaintext data with the IV, then encrypts the xor’d data, and doesnt u… Continue reading Getting AES-CBC IV using key, encrypted data, and plaintext data [closed]