add maps for ASN.1 en-/decoding
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Steffen Jaeckel
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64875d3a8f
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509ad5222f
@ -517,6 +517,7 @@ typedef enum ltc_asn1_type_ {
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LTC_ASN1_CONTEXT_SPECIFIC,
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/* 20 */
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LTC_ASN1_GENERALIZEDTIME,
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LTC_ASN1_CUSTOM_TYPE,
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} ltc_asn1_type;
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/** A LTC ASN.1 list type */
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@ -554,6 +555,15 @@ int der_decode_asn1_length(const unsigned char* len, unsigned long* lenlen, unsi
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int der_length_asn1_length(unsigned long len, unsigned long *outlen);
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extern const char* der_asn1_class_to_string_map[];
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extern const unsigned long der_asn1_class_to_string_map_sz;
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extern const char* der_asn1_pc_to_string_map[];
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extern const unsigned long der_asn1_pc_to_string_map_sz;
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extern const char* der_asn1_tag_to_string_map[];
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extern const unsigned long der_asn1_tag_to_string_map_sz;
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/* SEQUENCE */
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int der_encode_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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unsigned char *out, unsigned long *outlen, int type_of);
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@ -572,6 +582,12 @@ int der_length_sequence(ltc_asn1_list *list, unsigned long inlen,
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/* internal helper functions */
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int der_length_sequence_ex(ltc_asn1_list *list, unsigned long inlen,
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unsigned long *outlen, unsigned long *payloadlen);
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extern const ltc_asn1_type der_asn1_tag_to_type_map[];
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extern const unsigned long der_asn1_tag_to_type_map_sz;
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extern const int der_asn1_type_to_identifier_map[];
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extern const unsigned long der_asn1_type_to_identifier_map_sz;
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#endif /* LTC_SOURCE */
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/* SET */
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@ -132,6 +132,7 @@ static const crypt_constant _crypt_constants[] = {
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_C_STRINGIFY(LTC_ASN1_CONSTRUCTED),
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_C_STRINGIFY(LTC_ASN1_CONTEXT_SPECIFIC),
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_C_STRINGIFY(LTC_ASN1_GENERALIZEDTIME),
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_C_STRINGIFY(LTC_ASN1_CUSTOM_TYPE),
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#endif
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#ifdef LTC_CTR_MODE
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170
src/pk/asn1/der/general/der_asn1_maps.c
Normal file
170
src/pk/asn1/der/general/der_asn1_maps.c
Normal file
@ -0,0 +1,170 @@
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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#include "tomcrypt.h"
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/**
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@file der_asn1_maps.c
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ASN.1 DER, a collection of maps to convert between different representations, Steffen Jaeckel
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*/
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#ifdef LTC_DER
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/**
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A Map from ltc_asn1_type to the regularly used ASN.1 identifier
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*/
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const int der_asn1_type_to_identifier_map[] =
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{
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/* 0 */
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-1, /* LTC_ASN1_EOL, */
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1, /* LTC_ASN1_BOOLEAN, */
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2, /* LTC_ASN1_INTEGER, */
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2, /* LTC_ASN1_SHORT_INTEGER, */
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3, /* LTC_ASN1_BIT_STRING, */
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/* 5 */
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4, /* LTC_ASN1_OCTET_STRING, */
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5, /* LTC_ASN1_NULL, */
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6, /* LTC_ASN1_OBJECT_IDENTIFIER, */
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22, /* LTC_ASN1_IA5_STRING, */
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19, /* LTC_ASN1_PRINTABLE_STRING, */
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/* 10 */
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12, /* LTC_ASN1_UTF8_STRING, */
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23, /* LTC_ASN1_UTCTIME, */
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-1, /* LTC_ASN1_CHOICE, */
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48, /* LTC_ASN1_SEQUENCE, */
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49, /* LTC_ASN1_SET, */
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/* 15 */
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49, /* LTC_ASN1_SETOF, */
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3, /* LTC_ASN1_RAW_BIT_STRING, */
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20, /* LTC_ASN1_TELETEX_STRING, */
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-1, /* LTC_ASN1_CONSTRUCTED, */
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-1, /* LTC_ASN1_CONTEXT_SPECIFIC, */
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/* 20 */
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24, /* LTC_ASN1_GENERALIZEDTIME, */
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-1, /* LTC_ASN1_CUSTOM_TYPE, */
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};
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const unsigned long der_asn1_type_to_identifier_map_sz = sizeof(der_asn1_type_to_identifier_map)/sizeof(der_asn1_type_to_identifier_map[0]);
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/**
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A Map from the ASN.1 Class to its string
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*/
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const char* der_asn1_class_to_string_map[] =
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{
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"UNIVERSAL",
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"APPLICATION",
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"CONTEXT-SPECIFIC",
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"PRIVATE",
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};
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const unsigned long der_asn1_class_to_string_map_sz = sizeof(der_asn1_class_to_string_map)/sizeof(der_asn1_class_to_string_map[0]);
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/**
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A Map from the ASN.1 P/C-bit to its string
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*/
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const char* der_asn1_pc_to_string_map[] =
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{
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"PRIMITIVE",
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"CONSTRUCTED",
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};
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const unsigned long der_asn1_pc_to_string_map_sz = sizeof(der_asn1_pc_to_string_map)/sizeof(der_asn1_pc_to_string_map[0]);
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/**
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A Map from the ASN.1 tag to its string
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*/
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const char* der_asn1_tag_to_string_map[] =
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{
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"Reserved for use by the encoding rules",
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"Boolean type",
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"Integer type",
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"Bitstring type",
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"Octetstring type",
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"Null type",
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"Object identifier type",
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"Object descriptor type",
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"External type and Instance-of type",
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"Real type",
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"Enumerated type",
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"Embedded-pdv type",
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"UTF8String type",
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"Relative object identifier type",
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"The time type",
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"Reserved for future editions of this Recommendation | International Standard",
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"Sequence and Sequence-of types",
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"Set and Set-of types",
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"NumericString type",
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"PrintableString type",
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"TeletexString (T61String) type",
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"VideotexString type",
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"IA5String type",
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"UTCTime type",
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"GeneralizedTime type",
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"GraphicString type",
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"VisibleString (ISO646String) type",
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"GeneralString type",
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"UniversalString type",
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"UnrestrictedCharacterString type",
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"BMPString type",
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"Date type",
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"TimeOfDay type",
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"DateTime type",
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"Duration type",
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"OID internationalized resource identifier type",
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"Relative OID internationalized resource identifier type",
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};
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const unsigned long der_asn1_tag_to_string_map_sz = sizeof(der_asn1_tag_to_string_map)/sizeof(der_asn1_tag_to_string_map[0]);
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/**
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A Map from ASN.1 Tags to ltc_asn1_type
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*/
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const ltc_asn1_type der_asn1_tag_to_type_map[] =
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{
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/* 0 */
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LTC_ASN1_EOL, /* Reserved for use by the encoding rules */
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LTC_ASN1_BOOLEAN, /* Boolean type */
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LTC_ASN1_INTEGER, /* Integer type */
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LTC_ASN1_BIT_STRING, /* Bitstring type */
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LTC_ASN1_OCTET_STRING, /* Octetstring type */
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/* 5 */
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LTC_ASN1_NULL, /* Null type */
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LTC_ASN1_OBJECT_IDENTIFIER, /* Object identifier type */
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LTC_ASN1_CUSTOM_TYPE, /* Object descriptor type */
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LTC_ASN1_CUSTOM_TYPE, /* External type and Instance-of type */
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LTC_ASN1_CUSTOM_TYPE, /* Real type */
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/* 10 */
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LTC_ASN1_CUSTOM_TYPE, /* Enumerated type */
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LTC_ASN1_CUSTOM_TYPE, /* Embedded-pdv type */
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LTC_ASN1_UTF8_STRING, /* UTF8String type */
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LTC_ASN1_CUSTOM_TYPE, /* Relative object identifier type */
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LTC_ASN1_CUSTOM_TYPE, /* The time type */
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/* 15 */
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LTC_ASN1_EOL, /* Reserved for future editions of this Recommendation | International Standard */
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LTC_ASN1_SEQUENCE, /* Sequence and Sequence-of types */
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LTC_ASN1_SET, /* Set and Set-of types */
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LTC_ASN1_CUSTOM_TYPE, /* NumericString types */
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LTC_ASN1_PRINTABLE_STRING, /* PrintableString types */
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/* 20 */
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LTC_ASN1_TELETEX_STRING, /* TeletexString (T61String) types */
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LTC_ASN1_CUSTOM_TYPE, /* VideotexString types */
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LTC_ASN1_IA5_STRING, /* IA5String types */
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LTC_ASN1_UTCTIME, /* UTCTime types */
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LTC_ASN1_GENERALIZEDTIME, /* GeneralizedTime types */
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/* 25 */
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LTC_ASN1_CUSTOM_TYPE, /* GraphicString types */
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LTC_ASN1_CUSTOM_TYPE, /* VisibleString (ISO646String) types */
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LTC_ASN1_CUSTOM_TYPE, /* GeneralString types */
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LTC_ASN1_CUSTOM_TYPE, /* UniversalString types */
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LTC_ASN1_CUSTOM_TYPE, /* UnrestrictedCharacterString types */
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/* 30 */
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LTC_ASN1_CUSTOM_TYPE, /* BMPString types */
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};
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const unsigned long der_asn1_tag_to_type_map_sz = sizeof(der_asn1_tag_to_type_map)/sizeof(der_asn1_tag_to_type_map[0]);
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#endif
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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