Card encryption and tokenisation for Python.

Processor	Function	Type	Returns
Adyen	ccadyen	Encrypt	dict of 4 encrypted fields
CyberSource Flex	cccybersource / cccybersource_token	Encrypt / Tokenise	JWE / transient token
eWay	cceway / cceway_card	Encrypt	eCrypted:... strings
Stripe	ccstripe	Tokenise	pm_... payment method id
Braintree	ccbraintree	Tokenise	tokencc_... nonce
Shopify	ccshopify	Tokenise	card session id
PayDock	ccpaydock	Tokenise	one-time card token

Install

pip install ccencrypt

Card details

Every function cleans the card details before using them, so any of these work:

Field	Accepted
card	"4242424242424242", "4242 4242 4242 4242", "4242-4242-4242-4242"
month	1, "1", "01"
year	29, "29", 2029, "2029"

Month and year are always separate arguments. If you have "01/29", split it first:

month, year = "01/29".split("/")

Proxies

You can pass a proxy for the process. Some processors like paydock will ratelimit so its important to use proxies:

token = ccencrypt.ccpaydock(public_key, card, month, year, cvv, name, proxy="http://user:pass@host:port")

Errors

Tokenise functions raise RuntimeError with the status code and response body when the processor rejects the request.

---

Encryption

Adyen

encrypt_key is the site's Adyen public key (10001|A532...).

import ccencrypt

result = ccencrypt.ccadyen(
    encrypt_key="10001|A532...",
    card="4242424242424242",
    month="12",
    year="2029",
    cvc="123",
    client_key="live_...",
    domain="https://example.com",
)

result["encryptedCardNumber"]
result["encryptedExpiryMonth"]
result["encryptedExpiryYear"]
result["encryptedSecurityCode"]

client_key and domain are optional, but pass the site's own values when you have them.

version defaults to "4.5.0" (Secured Fields). For sites on legacy encryption (adyenjs_0_1_XX$...), pass "0_1_18", "0_1_22", "0_1_23", "0_1_24" or "0_1_25". Legacy versions ignore client_key and domain.

result = ccencrypt.ccadyen(encrypt_key, card, month, year, cvc, version="0_1_25")

To encrypt a custom legacy payload such as holderName:

from ccencrypt.adyen import parse_public_key

blob = ccencrypt.cse_encrypt(
    {"holderName": "John Smith", "generationtime": "2029-01-01T00:00:00.000Z"},
    parse_public_key("10001|A532..."),
    version="0_1_25",
)

CyberSource Flex

context is the capture context JWT from the site's CyberSource init endpoint.

Encrypt and exchange for a transient token in one call:

token = ccencrypt.cccybersource_token(
    card="4242424242424242",
    month="12",
    year="2029",
    cvv="123",
    context=context,
    origin="https://www.example.com",
    user_agent="Mozilla/5.0 ...",
)

For Microform sites, pass microform=True instead of origin.

To encrypt only, use cccybersource with the same card arguments and context. It returns a JWE that you POST yourself to https://flex.cybersource.com/flex/v2/tokens as application/jwt.

eWay

encrypt_key is the data-eway-encrypt-key value from the site's payment form.

fields = ccencrypt.cceway_card(encrypt_key, card="4242424242424242", cvv="123")

fields["EWAY_CARDNUMBER"]
fields["EWAY_CARDCVN"]

To encrypt a single value, use ccencrypt.cceway(encrypt_key, value).

---

Tokenisation

Stripe

key is the site's publishable key (pk_live_...), sent as key= in the site's requests to api.stripe.com.

pm = ccencrypt.ccstripe(
    key="pk_live_...",
    card="4242424242424242",
    month="12",
    year="2029",
    cvc="123",
    name="John Smith",
)

If the site's requests also send _stripe_account=acct_..., pass it as account.

Braintree

client_token is the base64 client token the site hands to Braintree. A raw authorizationFingerprint also works.

nonce = ccencrypt.ccbraintree(
    client_token="eyJ2ZXJzaW9uIjoy...",
    card="4242424242424242",
    month="12",
    year="2029",
    cvv="123",
    name="John Smith",
)

Shopify

domain is the store's domain, without https:// or www..

session_id = ccencrypt.ccshopify(
    domain="example.com.au",
    card="4242424242424242",
    month="12",
    year="2029",
    cvv="123",
    name="John Smith",
)

The returned id goes into the checkout's payment as the card sessionId.

PayDock

public_key is the site's PayDock public key, sent as x-user-public-key in the site's requests to api.paydock.com.

token = ccencrypt.ccpaydock(
    public_key="5b12b8af...",
    card="4242424242424242",
    month="12",
    year="2029",
    cvv="123",
    name="John Smith",
)

If the site's token request includes a gateway_id, pass it as gateway_id.

Connect

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• Email - itsregza@gmail.com