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32 lines
710 B
C
32 lines
710 B
C
#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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#define BER_CLASS_UNIVERSAL 0x0
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#define BER_CLASS_APPLICATION 0x1
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#define BER_CLASS_CONTEXT 0x2
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#define BER_CLASS_PRIVATE 0x3
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typedef struct {
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uint16_t tag; // TODO: use define/typedef for this data format?
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struct {
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uint16_t tag;
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uint8_t constructed : 1;
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uint8_t classVar : 2;
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} ber;
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size_t length;
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const uint8_t* value;
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const uint8_t* next;
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} TlvInfo;
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// ISO7816-5 §5.2
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// Simple-TLV and BER-TLV parsing
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TlvInfo iso7816_tlv_parse(const uint8_t* data);
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TlvInfo
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iso7816_tlv_select(const uint8_t* data, size_t length, const uint16_t tags[], size_t num_tags);
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