Security Characteristics

Colombia

Category	Details
Authentication	HMAC or certificate based
Transport layer encryption	One way TLS 1.2 Client validates the server to ensure that it is receiving reliable data using HTTPS protocol.
PIN encryption	Pin Encryption Key (PEK) exchange using API between Aggregator and API layer Keys meet TR31 dynamic key exchange specifications.
PCI Data Encryption	RSA / Public Key / Triple DES
Additional Features	Track / card data encryption - decryption using asymmetric keys