I'm using to encrypt a data. Here's my code. $cipher = BlockCipher::factory('mcrypt', array( 'algorithm' => 'aes', )); $cipher->setKey('mypassphrase'); $encrypted = $cipher->encrypt('Hey, I am the secret data'); Cool, it works well! Now, I need to decrypt that $encrypted data (Hey, I am the secret data) in Python. I am using pycrypto to do that. What the steps to decrypt data outside my PHP environment?

The RSA algorithm can be used to encrypt/decrypt messages, and also to provide authenticity and integrity by generating a digital signature of a.

From Crypto.Cipher import AES import base64 import hashlib password = 'mypassphrase' key = hashlib.sha256(password).digest() decoded = base64.standard_b64decode(encrypted) cipher = AES.new(key, AES.MODE_CBC) data = cipher.decrypt(decoded) I need to specify an IV because Zend uses MODE_CBC by default. How can I specify it in my Python code? Here's the Zend2 documentation: The output of the encryption is a string, encoded in Base64 (default), that contains the HMAC value, the IV vector, and the encrypted text. The encryption mode used is the CBC (with a random IV by default) and SHA256 as default hash algorithm of the HMAC.

The Mcrypt adapter encrypts using the PKCS#7 padding mechanism by default. You can specify a different padding method using a special adapter for that (Zend Crypt Symmetric Padding). The encryption and authentication keys used by the BlockCipher are generated with the PBKDF2 algorithm, used as key derivation function from the user’s key specified using the setKey() method. Can someone help me to adapt my Python code to decrypt the data?

I found a way to decrypt the data encrypted by Zend2. Berliner platz 3 neu pdfescape. Here's my code: from base64 import b64decode from Crypto import Random from Crypto.Cipher import AES from Crypto.Hash import SHA256, HMAC from Crypto.Protocol.KDF import PBKDF2 # The hmac starts from 0 to 64 (length).

Hmac_size = 64 hmac = data[:hmac_size] # The cipher text starts after the hmac to the end. # The cipher text is base64 encoded, so I decoded it.

Ciphertext = data[hmac_size:] ciphertext = b64decode(ciphertext) # The IV starts from 0 to 16 (length) of the ciphertext. Iv = ciphertext[:16] # The key size is 256 bits -> 32 bytes. Key_size = 32 # The passphrase of the key. Password = 'mypassphrase' # The key is generated using PBKDF2 Key Derivation Function. # In the case of Zend2 Crypt module, the iteration number is 5000, # the result length is the key_size * 2 (64) and the HMAC is computed # using the SHA256 algorithm the_hash = PBKDF2(password, iv, count=5000, dkLen=64, prf=lambda p, s: HMAC.new(p, s, SHA256).digest()) # The key starts from 0 to key_size (32).

Key = the_hash[:key_size] # The hmac key starts after the key to the end. Key_hmac = the_hash[key_size:] # HMAC verification hmac_new = HMAC.new(key_hmac, 'aes%s'% ciphertext, SHA256).hexdigest() if hmac_new!= hmac: raise Exception('HMAC verification failed.' Fish tycoon full version hacked shootings.

) # Instanciate the cipher (AES CBC). Cipher = AES.new(key, AES.MODE_CBC, iv) # It's time to decrypt the data! The ciphertext starts after the IV (so, 16 after). Data = cipher.decrypt(ciphertext[16:]) Mission succeeded!

Supported options for Zend Filter Encrypt and Zend Filter Decrypt The following options are supported for Zend Filter Encrypt and Zend Filter Decrypt: • adapter: This sets the encryption adapter which should be used • algorithm: Only MCrypt. The algorithm which has to be used. It should be one of the algorithm ciphers which can be found under. If not set it defaults to blowfish. • algorithm_directory: Only MCrypt. The directory where the algorithm can be found.