摘要： The TR-39 Audit Procedures state that ISO 9564–1 Format 0 (ISO-0) and Format 3 (ISO-3) are the only approved formats:4.1.3X9 Approved PIN Block FormatsDocumented procedures exist and are followed that ensure any cleartext PIN-block format combined with a PIN encryption process has the characteristic 阅读全文

摘要： “In MasterCard, transactions Cash Disbursement and Withdrawal are regarded as two different transactions (They have different transaction type codes). What are the differences between these two transactions? What are their individual usage scenario ? “Great question, A cash withdrawal is generally a 阅读全文