![]() The kernel will treat it the same but will also apply necessary trimming/padding and handle issuing or not additional Issuer Authentication command basing on AIP and CDOL2 and will set TVR and TSI accordingly. Short answer would be - on the terminal side, please treat tag 91 as binary object that shouldn't be modified, but only passed to the level 2 kernel. Any EMV level 2 compliant terminal will behave in this way as it is verified during the certification process that regardless of the individual schemes implementations tag 91 is passed unmodified and transaction result will not be based on any response code that may be part of individual schemes implementation of IAD. up to 64: primitive: 8C: Card Risk Management Data Object List 1 (CDOL1) List of data objects (tag and length) to be passed to the ICC in the first GENERATE AC command: Card: binary ‘70’ or. From the terminal point of view neither IAD nor Issuer Script Commands that may be found in the authorization response should be interpreted, only passed unmodified to the card. List of data objects (tag and length) to be passed to the ICC in the first GENERATE AC command: Card: binary ‘70’ or ‘77’ var. Terminal does not parse it (it is a primitive data object). It is unnecessary for terminal to understand the structure, subelements, etc. EMV defines Issuer Authentication Data as a binary tag with length from 8 to 16 bytes. ![]() EMV is a framework that is used by the payment schemes to build their specifications on top of it. ![]()
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