def decrypt_data(encryption_key, data, iv=None):
"""
Function to decrypt the outData in the result
Parameters:
- encryption_key is the key used to decrypt the encrypted data of the
response.
- iv is an initialization vector if required by the data encryption
algorithm.
The default is all zeros.
- data is the parameter data in outData part of workorder request as
per TCF API 6.1.7 Work Order Data Formats.
Returns decrypted data as a string
"""
if not data:
logger.debug("Outdata is empty, nothing to decrypt")
return data
data_byte = crypto.base64_to_byte_array(data)
logger.debug("encryption_key: %s", encryption_key)
if iv is not None:
decrypt_result = crypto.SKENC_DecryptMessage(encryption_key, iv,
data_byte)
else:
decrypt_result = crypto.SKENC_DecryptMessage(encryption_key, data_byte)
result = crypto.byte_array_to_string(decrypt_result)
logger.info("Decryption result at client - %s", result)
return result
def decrypt_data(encryption_key, iv, data):
"""
Function to decrypt the outData in the result
Parameters:
- encryption_key is the key used to decrypt the encrypted data of response.
- iv is an initialization vector if required by the data encryption algorithm. The default is all zeros.
- data is the parameter data in outData part of workorder request as per TCF API 6.1.7 Work Order Data Formats
"""
if not data:
logger.debug("Outdata is empty, nothing to decrypt")
return
data_byte = crypto.base64_to_byte_array(data)
logger.debug("encrypted_session_key: %s", encryption_key)
decrypt_result = crypto.SKENC_DecryptMessage(encryption_key,
crypto.hex_to_byte_array(iv),
data_byte)
result = base64.b64decode(crypto.byte_array_to_base64(decrypt_result))
logger.info("Decryption Result at Client - %s ", result)
"test failed: not detected.")
sys.exit(-1)
except Exception as exc:
if (type(exc) == ValueError):
logger.debug(
"Symmetric encryption invalid iv detection test successful!")
else:
logger.error(
"ERROR: Symmetric encryption invalid iv detection " +
"test failed: ", exc)
sys.exit(-1)
try:
ciphertext = crypto.SKENC_EncryptMessage(key, iv, msg)
print(len(ciphertext))
crypto.SKENC_DecryptMessage(key, iv, ciphertext)
except Exception as exc:
logger.error("ERROR: Symmetric encryption test failed: ", exc)
sys.exit(-1)
if (bytearray(plaintext) == bytearray(msg)):
logger.debug("Symmetric encryption/decryption test successful!")
else:
logger.error("ERROR:Symmetric encryption/decryption test failed: " +
"decrypted text and plaintext mismatch.")
exit(-1)
c = list(ciphertext)
c[0] = c[0] + 1
ciphertext = tuple(c)
try: