OKY3106 is a programmable contactless smartcard module developed by OKYSTAR, a Chinese manufacturer of system-on-modules (SoMs). The module is based on NXP's MIFARE® Classic 1K (ISO 14443A) platform and features a flexible operating system. It is available in standard or custom-made designs, and comes pre-loaded with the TrustMe security evaluation software, enabling comprehensive personal data protection. The module supports the broad range of applications for smartcard technology, including loyalty, access control, and payment systems. It is equipped with an 8-byte memory module, multiple contactless interfaces, and and a number of communication protocols such as I2C, SPI, and UART. Additionally, it offers support for various cryptographic algorithms, with an internal cryptographic processor for flexibility and security in modern cryptographic protocols.