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/**
* @author ETSI / STF481
* @version $URL$
* $Id$
* @desc Module containing types and values for Security Protocol
*
*/
module LibItsSecurity_TypesAndValues {
// LibCommon
import from LibCommon_BasicTypesAndValues {
type
UInt8, UInt16, UInt32, UInt64,
}
import from LibCommon_DataStrings {
type
Bit2, Bit3,
Oct2, Oct3, Oct8, Oct12, Oct20, Oct1to31, Oct1to255
// LibIts
import from CAM_PDU_Descriptions language "ASN.1:1997" {
type CAM
import from DENM_PDU_Descriptions language "ASN.1:1997" {
type DENM
}
group basicFormatElements {
/**
* @desc an integer of variable length
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.1 IntX
*/
type integer IntX with { variant "IntX" };
/**
* @desc List of supported algorithms based on public key cryptography
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.2 PublicKeyAlgorithm
*/
type enumerated PublicKeyAlgorithm {
e_ecdsa_nistp256_with_sha256 (0),
e_ecies_nistp256 (1)
} with { variant "8 bit" }
/**
* @desc List of supported algorithms based on symmetric key cryptography
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.3 SymmetricAlgorithm
*/
type enumerated SymmetricAlgorithm {
e_aes_128_ccm (0),
e_unknown (255)
} with { variant "8 bit" }
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/**
* @desc Wrapper for public keys by specifying the used algorithm
* @member algorithm Specifying the used algorithm
* @member public_key The public key structure
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.4 PublicKey
*/
type record PublicKey {
PublicKeyAlgorithm algorithm,
PublicKeyContainer public_key
} // End of type PublicKey
/**
* @desc Information regarding ECC contained in an EccPoint structure
* @member supported_symm_alg The symmetric key algorithm
* @member public_key The EccPoint used in the PublicKey
*/
type record PublicKeyDesc {
SymmetricAlgorithm supported_symm_alg,
EccPoint public_key
} // End of type PublicKeyDesc
/**
* @desc Information regarding ECC contained in an EccPoint structure
* @member eccPoint Specific details regarding ECC contained in an EccPoint structure
* @member ecies_nistp256 Specific details regarding ECC contained in an EccPoint structure
* @member other_key Out of scope
*/
type union PublicKeyContainer {
EccPoint eccPoint,
PublicKeyDesc ecies_nistp256,
octetstring other_key
} // End of type PublicKeyContainer
/**
* @desc Defines public key based on elliptic curve cryptography
* @member algorithm Specifying the used algorithm
* @member field_size The lengths of the vectors containing the raw keys
* @member type_ The ECC key types
* @member x The x coordinate
* @member y
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.5 EccPoint
* @see Draft ETSI TS 103 097 V1.1.6 Table 2: Derivation of field sizes depending on the used algorithm
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*/
type record EccPoint {
PublicKeyAlgorithm algorithm,
UInt8 field_size,
EccPointType type_,
octetstring x,
EccPointContainer y optional
} // End of type EccPoint
/**
* @desc Defines a public key based on elliptic curve cryptography
* @member y The y coordinate
* @member data Out of scope
*/
type union EccPointContainer {
octetstring y,
octetstring data
} // End of type EccPointContainer
/**
* @desc List of supported ECC key types
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.6 EccPointType
*/
type enumerated EccPointType {
e_x_coordinate_only (0),
e_compressed_lsb_y_0 (2),
e_compressed_lsb_y_1 (3),
e_uncompressed (4),
e_unknown (255)
} with { variant "8 bit" }
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/**
* @desc Parameters and additional data required for encryption and decryption of data using different symmetric encryption algorithms
* @member symm_algorithm The symmetric algorithm that shall be used with a public key for encryption
* @member public_key The public key for encryption
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.7 EncryptionParameters
*/
type record EncryptionParameters {
SymmetricAlgorithm symm_algorithm,
EncryptionParametersContainer public_key
} // End of type EncryptionParameters
/**
* @desc
* @member nonce Data encryption with the Advanced Encryption Standard (AES) using a 128-bit key in Counter with cipher block chaining message authentication code (CCM) mode
* @member params Out of scope
*/
type union EncryptionParametersContainer {
Oct12 nonce,
octetstring params
} // End of type EncryptionParametersContainer
/**
* @desc Signatures based on public key cryptography
* @member algorithm Algorithm type
* @member signature_ The signature
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.7 EncryptionParameters
*/
type record Signature {
PublicKeyAlgorithm algorithm,
SignatureContainer signature_
} // End of type Signature
/**
* @desc
* @member algorithm The ECDSA based signature
* @member signature_ Out of scope
*/
type union SignatureContainer {
EcdsaSignature ecdsa_signature,
octetstring signature_
} // End of type SignatureContainer
/**
* @desc Description an ECDSA based signature
* @member algorithm
* @member field_size The 's' field length derived from the applied ECDSA algorithm
* @member r Coordinate of the elliptic curve point resulting from multiplying the generator element by the ephemeral private key
* @member s
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.10 EcdsaSignature
*/
type record EcdsaSignature {
PublicKeyAlgorithm algorithm,
UInt8 field_size,
EccPoint r,
octetstring s
} // End of type EcdsaSignature
/**
* @desc Information about the signer of a message
* @member type_ Signature algorithm type
* @member signerInfo Signature algorithm information. In case of self-signed, this field is not required because of no additional data shall be given
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.11 SignerInfo
*/
type record SignerInfo {
SignerInfoType type_,
SignerInfoContainer signerInfo optional
} // End of type SignerInfo
/**
* @desc
* @member digest The digest value
* @member certificate A certificate
* @member certificates A complete certificate chain
* @member certificateWithAlgo TODO
* @member info TODO
*/
type union SignerInfoContainer {
HashedId8 digest,
Certificate certificate,
CertificateChain certificates,
CertificateWithAlgo certificateWithAlgo,
octetstring info
} // End of type SignerInfoContainer
/**
* @desc
* @member algorithm The public key algorithm
* @member digest The digest value
*/
type record CertificateWithAlgo {
PublicKeyAlgorithm algorithm,
HashedId8 digest
} // End of type CertificateWithAlgo
/**
* @desc The list of the methods to describe a message's signer
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.12 SignerInfoType
*/
type enumerated SignerInfoType {
e_self (0),
e_certificate_digest_with_ecdsap256 (1),
e_certificate (2),
e_certificate_chain (3),
e_certificate_digest_with_other_algorithm (4)
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} // End of type SignerInfoContainer
/**
* @desc Indication on an identifier, where real identification is not required
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.14 HashedId3
* @see RFC2246 Clause 4.2. Miscellaneous
*/
type Oct3 HashedId3;
/**
* @desc Identifies data such as a certificate
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.13 HashedId8
* @see RFC2246 Clause 4.2. Miscellaneous
*/
type Oct8 HashedId8;
/**
* @desc The unsigned 32 bits number of International Atomic Time (TAI) microseconds since 00:00:00 UTC, 01 January 2004
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.16 Time64
*/
type UInt32 Time32;
/**
* @desc The unsigned 64 bits number of International Atomic Time (TAI) microseconds since 00:00:00 UTC, 01 January 2004
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.16 Time64
*/
type UInt64 Time64;
/**
* @desc The time along with the standard deviation of time values
* @member time The time being encoded
* @member log_std_dev The rounded up value of the log to the base 1,134666 of the implementation's estimate of the standard deviation in units of nanoseconds
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.17 Time64WithStandardDeviation
*/
type record Time64WithStandardDeviation {
Time64 time,
UInt8 log_std_dev
} // End of type Time64WithStandardDeviation
/**
* @desc Defines the duration of a time span (e.g. a certificate's validity)
* @member unit
* @member duration
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.18 Duration
*/
type record Duration {
DurationUnitType unit,
Int13 duration
} // End of type Duration
/**
* @desc List of supported duration unit
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.18 Duration
* @see Draft ETSI TS 103 097 V1.1.6 Table 3: Interpretation of duration unit bits
*/
type enumerated DurationUnitType {
e_seconds (0), // seconds
e_minutes (1), // minutes (60 seconds)
e_hours (2), // hours (3 600 seconds)
e_hoursBlock (3), // 60 hour blocks (216 000 seconds)
e_year (4) // years (31 556 925 seconds)
} with { variant "3 bit" }
/**
* @desc Specify a two dimensional location
* @member latitude Latitude in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum
* @member longitude Longitude in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.19 TwoDLocation
*/
type record TwoDLocation {
Int32 latitude,
Int32 longitude
} // End of type TwoDLocation
/**
* @desc Specify a two dimensional location
* @member latitude Latitude in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum
* @member longitude Longitude in tenths of micro degrees relative to the World Geodetic System (WGS)-84 datum
* @member elevation Elevation relative to the WGS-84 ellipsoid in decimetres
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.20 ThreeDLocation
*/
type record ThreeDLocation {
Int32 latitude,
Int32 longitude,
Oct2 elevation
} // End of type ThreeDLocation
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/**
* @desc Defines geographic regions used to limit the validity of certificates
* @member region_type Region type
* @member region Region description
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.21 GeographicRegion
*/
type record GeographicRegion {
RegionType region_type,
GeographicRegionContainer region optional
} // End of type GeographicRegion
type union GeographicRegionContainer {
CircularRegion circular_region,
RectangularRegions rectangular_region,
PolygonalRegion polygonal_region,
IdentifiedRegion id_region,
octetstring other_region
} // End of type GeographicRegionContainer
/**
* @desc The list of the possible region types
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.22 RegionType
*/
type enumerated RegionType {
e_circle (0),
e_rectangle (1),
e_polygon (2),
e_id (3),
e_none (4)
} with { variant "8 bit" }
/**
* @desc Defines a circular region
* @member center Circular center
* @member radius Radius given in metres
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.23 CircularRegion
*/
type record CircularRegion {
TwoDLocation center,
UInt16 radius
} // End of type CircularRegion
/**
* @desc Defines a rectangular region by connecting the four points in the order (northwest.latitude, northwest.longitude), (northwest.longitude, southeast.longitude), (southeast.longitude, southeast.longitude), and (southeast.longitude, northwest.longitude)
* @member center Circular center
* @member radius Radius given in metres
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.24 RectangularRegion
*/
type record RectangularRegion {
TwoDLocation northwest,
TwoDLocation southeast
} // End of type RectangularRegion
type record of RectangularRegion RectangularRegions;
/**
* @desc a region by enumerating points on the region's boundary
*/
type record of TwoDLocation PolygonalRegion;
/**
* @desc Defines a predefined geographic region determined by the region dictionary and the region identifier
* @member region_dictionary The region dictionary
* @member region_identifier The region identifier
* @member local_region The whole region. 0 if the whole region is meant
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.26 IdentifiedRegion
*/
type record IdentifiedRegion {
RegionDictionary region_dictionary,
UInt16 region_identifier,
IntX local_region
} // End of type IdentifiedRegion
/**
* @desc The list of dictionaries containing two-octet records of globally defined regions
* @see Draft ETSI TS 103 097 V1.1.6 Clause 4.2.27 RegionDictionary
*/
type enumerated RegionDictionary {
iso_3166_1 (0),
un_stats (1)
} with { variant "8 bit" }
} // End of group basicFormatElements
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group SecurityMessages {
/**
* @desc Generic secured message description
* @member protocol_version The applied protocol version
* @member security_profile The security profile for this secured message
* @member header_fields Multiple information fields of interest to the security layer
* @member payload_fields The message's payload
* @member trailer_fields Security information after the payload
*
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.1 SecuredMessage
*/
type record SecuredMessage {
UInt8 protocol_version,
UInt8 security_profile,
HeaderFields header_fields,
Payload payload_fields,
TrailerFields trailer_fields
} // End of type SecuredMessage
type set of HeaderField HeaderFields;
type record HeaderField {
HeaderFieldType type_,
HeaderFieldContainer headerField
} // End of type HeaderField
/**
* @desc Supported types of header fields
*/
type enumerated HeaderFieldType {
e_generation_time (0),
e_generation_time_standard_deviation (1),
e_expiration (2),
e_generation_location (3),
e_request_unrecognized_certificate (4),
e_message_type (5),
e_signer_info (128),
e_recipient_info (129),
e_encryption_parameters (130),
e_unknown (255)
} with { variant "8 bit" }
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type union HeaderFieldContainer {
Time64 generation_time,
Time64WithStandardDeviation generation_time_with_standard_deviation,
Time32 expiry_time,
ThreeDLocation generation_location,
HashedId3 digests,
UInt16 message_type,
SignerInfo signer,
RecipientInfo recipient,
EncryptionParameters enc_params,
octetstring other_header
} // End of type HeaderFieldContainer
/**
* @desc Payload structure
* @member type_ Payload type
* @member payload Payload data
*
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.2 Payload
*/
type record Payload {
PayloadType type_,
PayloadContainer payload
} // End of type Payload
/**
* @desc Payload data container
* @member camPayload CAM message
* @member denmPayload DENM message
* @member rawPayload Other message
*
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.2 Payload
*/
type union PayloadContainer {
CAM camPayload,
DENM denmPayload,
octetstring rawPayload
} // End of type PayloadContainer
/**
* @desc Supported types of payloads
*
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.3 Payload
*/
type enumerated PayloadType {
e_unsecured (0),
e_signed (1),
e_encrypted (2),
e_signed_external (3),
e_signed_and_encrypted (4),
e_unknown (255)
} with { variant "8 bit" }
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type set of TrailerField TrailerFields;
/**
* @desc Information used by the security layer after processing the payload
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.6 TrailerField
*/
type record TrailerField {
TrailerFieldType type_,
TrailerFieldContainer trailerField
} // End of type TrailerField
/**
* @desc
* @member signature_ The signature of the payload
* @member security_field Out of scope
*/
type union TrailerFieldContainer {
Signature signature_,
octetstring security_field
} // End of type TrailerFieldContainer
/**
* @desc Supported types of trailer fields
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.7 TrailerFieldType
*/
type enumerated TrailerFieldType {
e_signature (1),
e_unknown (255)
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} with { variant "8 bit" }
/**
* @desc Information for a message's recipient
* @member cert_id Identifier for the recipient's certificate
* @member pk_encryption Type of the recipient's certificate
* @member enc_key The recipient's certificate
* @see Draft ETSI TS 103 097 V1.1.6 Clause 5.8 RecipientInfo
*/
type record RecipientInfo {
HashedId8 cert_id,
PublicKeyAlgorithm pk_encryption,
RecipientInfoContainer enc_key
} // End of type RecipientInfo
/**
* @desc The recipient's certificate
* @member enc_key Identifier for the recipient's certificate
* @member enc_key_other Type of the recipient's certificate
*/
type union RecipientInfoContainer {
EciesEncryptedKey enc_key,
octetstring enc_key_other
} // End of type RecipientInfoContainer
type record EciesEncryptedKey {
SymmetricAlgorithm symm_alg,
UInt32 symm_key_len,
EccPoint v,
octetstring c,
Oct20 t
} // End of type EciesEncryptedKey
} // End of group SecurityMessages
group certificateSpecification {
/**
* @desc Certificate description
* @member version The certificate's version. Shall be set to 2
* @member signer_info The certificate's signer
* @member subject_info Information on the certificate's subject
* @member subject_attributes The certificate's subject
* @member validity_restrictions Restrictions regarding the certificate's validity
* @member signature_ The signature of this certificate signed by the responsible CA
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.1 Certificate
*/
type record Certificate {
UInt8 version,
SignerInfos signer_info,
SubjectInfo subject_info,
SubjectAttributes subject_attributes,
ValidityRestrictions validity_restrictions,
Signature signature_
} // End of type Certificate
type set of Certificate CertificateChain;
type set of SignerInfo SignerInfos;
/**
* @desc Certificate description
* @member subject_type The type subjet
* @member subject_name The subject itself
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.2 SubjectInfo
*/
type record SubjectInfo {
SubjectType subject_type,
Oct1to255 subject_name
} // End of type SubjectInfo
/**
* @desc The list of the possible types of subjects
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.3 SubjectInfoType
*/
type enumerated SubjectType {
e_enrollment_credential (0),
e_authorization_ticket (1),
e_authorization_authority (2),
e_enrollment_authority (3),
e_root_ca (4),
e_crl_signer (5),
e_unknown (255)
} with { variant "8 bit" }
/**
* @desc Subject attribute description
* @member type_ The type of attribute
* @member attribute The attribute itself
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.4 SubjectAttribute
*/
type record SubjectAttribute {
SubjectAttributeType type_,
SubjectAttributeContainer attribute
} // End of type SubjectAttribute
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/**
* @desc The attributes description
* @member key
* @member rv
* @member assurance_level
* @member its_aid_list
* @member its_aid_ssp_list
* @member other_attribute
*/
type union SubjectAttributeContainer {
PublicKey key,
EccPoint rv,
SubjectAssurance assurance_level,
IntXs its_aid_list,
ItsAidSsps its_aid_ssp_list,
octetstring other_attribute
} // End of type SubjectAttributeContainer
type set of SubjectAttribute SubjectAttributes;
type set of IntX IntXs;
type set of ItsAidSsp ItsAidSsps;
/**
* @desc The list of the possible types of attributes
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.5 SubjectAttributeType
*/
type enumerated SubjectAttributeType {
e_verification_key (0),
e_encryption_key (1),
e_assurance_level (2),
e_reconstruction_value (3),
e_its_aid_list (4),
e_its_aid_ssp_list (5)
} with { variant "8 bit" }
/**
* @desc The ITS S's assurance
* @member levels The assurance levels
* @member reserved Out of scope
* @member confidence The confidence
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.6 SubjectAssurance
* @see Draft ETSI TS 103 097 V1.1.6 Table 5: Bitwise encoding of subject assurance
*/
type record SubjectAssurance {
Bit3 levels,
Bit3 reserved,
Bit2 confidence
} // End of type SubjectAssurance
/**
* @desc Defines ways to restrict the validity restriction of the certificate
* @member type_ The type of validity restriction of the certificate
* @member validity The validity restriction of the certificate
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.6 SubjectAssurance
*/
type record ValidityRestriction {
ValidityRestrictionType type_,
ValidityRestrictionContainer validity
} // End of type ValidityRestriction
/**
* @desc Defines the validity restriction of the certificate
* @member end_validity Validity restriction till the end date
* @member time_start_and_end Validity restriction between into a range
* @member time_start_and_duration Validity restriction between into a range from a start date and inside a geographical aera
* @member data TODO
*/
type union ValidityRestrictionContainer {
Time32 end_validity,
TimeStartEnd time_start_and_end,
TimeDuration time_start_and_duration,
octetstring data
} // End of type ValidityRestrictionContainer
/**
* @desc Defines the validity restriction between into a range
* @member start_validity Start date
* @member end_validity End date
*/
type record TimeStartEnd {
Time32 start_validity,
Time32 end_validity
} // End of type TimeStartEnd
/**
* @desc Defines the validity restriction between into a range from a start date and inside a geographical aera
* @member start_validity Start date
* @member duration Duration of the validity restriction from the start date
* @member GeographicRegion The geographical aera
*/
type record TimeDuration {
Time32 start_validity,
Duration duration,
GeographicRegion region
} // End of type TimeDuration
/**
* @desc Type of validity restriction of a certificate
* @see Draft ETSI TS 103 097 V1.1.6 6.8 ValidityRestrictionType
*/
type enumerated ValidityRestrictionType {
e_time_end (0),
e_time_start_and_end (1),
e_time_start_and_duration (2),
e_region (3),
e_unknown (255)
} with { variant "8 bit" }
type set of ValidityRestriction ValidityRestrictions;
/**
* @desc ITS-AID description
* @member its_aid The ITS_AID identifier
* @member service_specific_permissions The associated Service Specific Permissions
* @see Draft ETSI TS 103 097 V1.1.6 Clause 6.9 ItsAidSsp
*/
type record ItsAidSsp {
IntX its_aid,
Oct1to31 service_specific_permissions
} // End of type ItsAidSsp
} // End of group certificateSpecification
} // End of module LibItsSecurity_TypesAndValues