def encryptFile(checksum, cacheDir, cipher, iv, pad, hmac, nameHmac, output=None): f = cacheDir.open(checksum, 'rb') if output == None: output = checksum + '.enc' o = cacheDir.open(output, 'wb') o.write(iv) nb = len(iv) hmac.update(iv) for chunk, eof in Util._chunks(f, 64 * 1024): if eof: chunk = pad(chunk) ochunk = cipher.encrypt(chunk) o.write(ochunk) nb = nb + len(ochunk) hmac.update(ochunk) ochunk = hmac.digest() o.write(ochunk) nb = nb + len(ochunk) o.close() f.close() return nb
def encryptFile(checksum, cacheDir, cipher, iv, pad, hmac, nameHmac, output = None): f = cacheDir.open(checksum, 'rb') if output == None: output = checksum + '.enc' o = cacheDir.open(output, 'wb') o.write(iv) nb = len(iv) hmac.update(iv) for chunk, eof in Util._chunks(f, 64 * 1024): if eof: chunk = pad(chunk) ochunk = cipher.encrypt(chunk) o.write(ochunk) nb = nb + len(ochunk) hmac.update(ochunk) ochunk = hmac.digest() o.write(ochunk) nb = nb + len(ochunk) o.close() f.close() return nb
def encryptFile(checksum, cacheDir, cipher, iv, output=None): f = cacheDir.open(checksum, 'rb') if output == None: output = checksum + '.enc' o = cacheDir.open(output, 'wb') o.write(iv) nb = len(iv) cipher.update(iv) # Encrypt the chunks for chunk, eof in Util._chunks(f, 64 * 1024): ochunk = cipher.encrypt(chunk) o.write(ochunk) nb = nb + len(ochunk) # add the digest chunk ochunk = cipher.digest() o.write(ochunk) nb = nb + len(ochunk) o.close() f.close() return nb