encryption

问题 I am using pycrypto module for AES encryption. And using documentation I have write down the below function but it al;ways gives error IV must be 16 bytes long but I am using 16 byte long IV. def aes_encrypt(plaintext): """ """ key = **my key comes here** iv = binascii.hexlify(os.urandom(16)) # even used without binascii.hexlify) aes_mode = AES.MODE_CBC obj = AES.new(key, aes_mode, iv) ciphertext = obj.encrypt(plaintext) return ciphertext 回答1: Use this: from Crypto.Cipher import AES import

问题 I am using pycrypto module for AES encryption. And using documentation I have write down the below function but it al;ways gives error IV must be 16 bytes long but I am using 16 byte long IV. def aes_encrypt(plaintext): """ """ key = **my key comes here** iv = binascii.hexlify(os.urandom(16)) # even used without binascii.hexlify) aes_mode = AES.MODE_CBC obj = AES.new(key, aes_mode, iv) ciphertext = obj.encrypt(plaintext) return ciphertext 回答1: Use this: from Crypto.Cipher import AES import

问题 I have a javascript variable with parameters, but I don't know how to pass it into my html code. The javascript code is taken from https://gist.github.com/EvanHahn/2587465: var caesarShift = function(str, amount) { // Wrap the amount if (amount < 0) return caesarShift(str, amount + 26); // Make an output variable var output = ''; // Go through each character for (var i = 0; i < str.length; i ++) { // Get the character we'll be appending var c = str[i]; // If it's a letter... if (c.match(/[a-z

问题 I have tested to use AES_DECRYPT on a .asp page and it only showed ???? instead of the descypted value in clear text, when I used this select query. select *,AES_DECRYPT(thepassword,'myencyptkey2018' ) AS passw from personal But if I use this with convert using utf8 then it displays the text value. select *,CONVERT(AES_DECRYPT(thepassword,'myencyptkey2018' ) USING utf8) AS passw from personal My mySql databas is set to use charset utf8, my .asp uses charset utf8, the connection string as well

问题 Following Topaco's answer from previous post : Trouble loading RSA public key from file I've been reproducing the same using python : # Modulus, Exponent n = 0xC4F75716EC835D2325689F91FF85ED9BFC3211DB9C164F41852E264E569D2802008054A0EF459E7E3EABB87FAE576E735434D1D124B30B11BD6DE09814860155 e = 0x11 # Data to encrypt (m > n instead of m < n) buf = "c8cd2174b98433b93094b36026de125a7f5ed85ec27ee6bb9e996cb3b938e9c6238cc65d3615fb635f6f080f6dda06315928bcae4ccf802f9680547db57b8283" # convert buffer to

问题 We are going to get a Payment Gateway developed from a 3rd party and require this payment gateway to be PA-DSS and the environment to be PCI-DSS compliant. Payment Gateway will be encrypting sensitive information like (passwords, pins, credit and debit card information) and will save it into database. We require that the Key to encrypt and decrypt this information must be changed on regular basis (say quarterly). The requirement is also not to hard code this key into the code. What would be

问题 I have one application which is in PHP encrypting text using openssl_encrypt with following method. (Using same value for salt and iv as '239422ae7940144f') function encrypt_password($password) { define('AES_256_CBC', 'aes-256-cbc'); $sessionId = $password; //random number for encrtyption(salt) $salt = '239422ae7940144f'; $iv = $salt; //cipher length $encryptedSession = openssl_encrypt($sessionId, AES_256_CBC, $salt, 0, $iv); return array('encryptedPassword' => $encryptedSession, 'salt' =>

问题 I have one application which is in PHP encrypting text using openssl_encrypt with following method. (Using same value for salt and iv as '239422ae7940144f') function encrypt_password($password) { define('AES_256_CBC', 'aes-256-cbc'); $sessionId = $password; //random number for encrtyption(salt) $salt = '239422ae7940144f'; $iv = $salt; //cipher length $encryptedSession = openssl_encrypt($sessionId, AES_256_CBC, $salt, 0, $iv); return array('encryptedPassword' => $encryptedSession, 'salt' =>

问题 I want to send sensitive data from one app to another. I use Intent and send data via Bundle. Now, I am supposed to use an encryption algorithm to encrypt the data to send and parallelly the receiver app will decrypt the data. Which algorithm is best suited for the mobile platform? I have gone through RSA documents suggests that it is not suggested for long text encryption. I have seen the algorithm uses a random key generation method which will cause an issue in my case as both the app need

问题 A user enters their password into a textField. I set an instance variable to this value: let password = passwordTextField.text! I want to ensure this data is not preserved anywhere, and so I want to "zero out" this data. Is this as simple as setting it to nil when I am done? Or setting it to an empty string and then nil? 回答1: These are general UI security tips (From ios 7 programming cookbook written by Vandad Nahavandipoor) • Ensure that all passwords and secure fields are entered, by the