Posts about encryption

AES encryption in Ruby and Decryption in Java

24 February 2015
This one is precious, as it took me a long time to figure out. As a side-note, Java apparently only supports 128bit AES.

Here's the Ruby code:

def encrypt(string, pwd)
    salt = OpenSSL::Random.random_bytes(16)

    # prepare cipher for encryption
    e ='AES-128-CBC')

    # next, generate a PKCS5-based string for your key + initialization vector
    key_iv = OpenSSL::PKCS5.pbkdf2_hmac_sha1(pwd, salt, 1024, e.key_len+e.iv_len)
    key = key_iv[0, e...
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