"git@forge.etsi.org:nfv/SOL006.git" did not exist on "172539a180d9aa4f76b158273ef439483068ca85"
Newer
Older
/**
* @author ETSI / STF481
* @version $URL$
* $Id$
* @desc Module containing functions for Security Protocol
*
*/
module LibItsSecurity_Functions {
garciay
committed
import from LibCommon_DataStrings all;
garciay
committed
// LibItsCommon
import from LibItsCommon_Functions all;
import from LibItsSecurity_TypesAndValues all;
garciay
committed
import from LibItsSecurity_Templates all;
import from LibItsSecurity_Pixits all;
/**
* @desc Produces a 256-bit (32-byte) hash value
* @param p_toBeHashedData Data to be used to calculate the hash value
* @return The hash value
function f_hashWithSha256(in octetstring p_toBeHashedData) return Oct32 {
return fx_hashWithSha256(p_toBeHashedData);
} // End of function f_hashWithSha256
/**
* @desc Produces a Elliptic Curve Digital Signature Algorithm (ECDSA) signaturee
* @param p_ToBeSignedSecuredMessage The data to be signed
* @return The signature value
function f_signWithEcdsaNistp256WithSha256(in Oct32 p_ToBeSignedSecuredMessage) return octetstring {
return fx_signWithEcdsaNistp256WithSha256(
PX_PRIVATE_SIGNING_KEYS[PX_CERTIFICATE_CONFIG_IDX]
);
} // End of function f_signWithEcdsaNistp256WithSha256
/**
* @desc Verify the signature of the specified data
* @param p_toBeVerifiedData The data to be verified
* @param p_signature The signature
* @param p_ecdsaNistp256PublicKeyX The public key (x coordinate)
* @param p_ecdsaNistp256PublicKeyY The public key (y coordinate)
* @return true on success, false otherwise
*/
garciay
committed
function f_verifyWithEcdsaNistp256WithSha256(
in octetstring p_toBeVerifiedData,
in octetstring p_signature,
in octetstring p_ecdsaNistp256PublicKeyX,
in octetstring p_ecdsaNistp256PublicKeyY
) return boolean {
return fx_verifyWithEcdsaNistp256WithSha256(
p_toBeVerifiedData,
p_signature,
p_ecdsaNistp256PublicKeyX,
p_ecdsaNistp256PublicKeyY);
} // End of function f_verifyWithEcdsaNistp256WithSha256
/**
* @desc Calculate digest over the certificate
* @param cert The certificate
* @return the digest
*/
function f_calculateDigest(in Certificate cert) return HashedId8 {
/**
* @desc Build a template of a secured beacon to be used for the Test Adapter secured beaconing processing
*/
function f_buildSecuredMessagePayloadToBeSigned()
return ToBeSignedSecuredMessage {
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
{ // Field HeaderFields
m_header_field_signer_info(
m_signerInfo_certificate(
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX]
) // End of template m_signerInfo_certificate
), // End of template m_header_field_signer_info
m_header_field_generation_time(oct2int('BBBBBBBB'O)), // To be replaced by TA with current time
m_header_field_generation_location(
PX_THREED_LOCATIONS[PX_CERTIFICATE_CONFIG_IDX]
)
}, // End of field HeaderFields
{
m_payload_unsecured(
'AAAAAAAAAA'O // To be replaced by TA with real payload
)
}, // End of field HeaderFields
e_signature
);
return v_ToBeSignedSecuredMessage;
/**
* @desc This function build and sign the SecureMessage part covered by the signature process
* @param p_securedMessage The signed SecureMessage part
* @param p_unsecuredPayload The unsigned payload (e.g. a beacon)
* @param p_threeDLocation The ThreeDLocation value
* @param p_headerFileds Additional HeaderFields
* @return true on success, false otherwise
* @verdict Unchanged
*/
function f_buildGnSecuredCam(
out template (value) SecuredMessage p_securedMessage,
in octetstring p_unsecuredPayload,
in ThreeDLocation p_threeDLocation,
in template (omit) HeaderFields p_headerFileds := omit
) return boolean {
// Local variables
var octetstring v_secPayload, v_signature;
var Oct32 v_hash;
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
// Create SecuredMessage payload to be signed
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
{ // Field HeaderFields
m_header_field_signer_info(
m_signerInfo_certificate(
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX]
) // End of template m_signerInfo_certificate
), // End of template m_header_field_signer_info
m_header_field_generation_time(f_getCurrentTime()),
m_header_field_generation_location(
p_threeDLocation
),
m_header_field_message_type(c_messageType_CAM)
}, // End of field HeaderFields
{
m_payload_unsecured(
p_unsecuredPayload
)
}, // End of field HeaderFields
e_signature
);
v_secPayload := bit2oct(encvalue(v_ToBeSignedSecuredMessage));
// Calculate the hash of the SecuredMessage payload to be signed
v_hash := f_hashWithSha256(v_secPayload);
// Signed payload
v_signature := f_signWithEcdsaNistp256WithSha256(
v_hash
);
p_securedMessage := m_securedMessage_profileOther( // See Clause 7.3 Generic security profile for other signed messages
v_ToBeSignedSecuredMessage.header_fields,
v_ToBeSignedSecuredMessage.payload_fields,
{
m_trailer_field_signature(
m_signature(
m_ecdsaSignature(
m_eccPointecdsa_nistp256_with_sha256_y_coordinate_only(
substr(v_signature, 2, 32)
),
substr(v_signature, 34, 32)
)
}
); // End of template m_securedMessageBeacon
return true;
}
/**
* @desc This function build and sign the SecureMessage part covered by the signature process
* @param p_securedMessage The signed SecureMessage part
* @param p_unsecuredPayload The unsigned payload (e.g. a beacon)
* @param p_threeDLocation The ThreeDLocation value
* @param p_headerFileds Additional HeaderFields
* @return true on success, false otherwise
* @verdict Unchanged
*/
function f_buildGnSecuredDenm(
out template (value) SecuredMessage p_securedMessage,
in octetstring p_unsecuredPayload,
in ThreeDLocation p_threeDLocation,
in template (omit) HeaderFields p_headerFileds := omit
) return boolean {
// Local variables
var octetstring v_secPayload, v_signature;
var Oct32 v_hash;
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
// Create SecuredMessage payload to be signed
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
{ // Field HeaderFields
m_header_field_signer_info(
m_signerInfo_certificate(
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX]
) // End of template m_signerInfo_certificate
), // End of template m_header_field_signer_info
m_header_field_generation_time(f_getCurrentTime()),
m_header_field_generation_location(
p_threeDLocation
),
m_header_field_message_type(c_messageType_DENM)
}, // End of field HeaderFields
{
m_payload_unsecured(
p_unsecuredPayload
)
}, // End of field HeaderFields
e_signature
);
v_secPayload := bit2oct(encvalue(v_ToBeSignedSecuredMessage));
// Calculate the hash of the SecuredMessage payload to be signed
v_hash := f_hashWithSha256(v_secPayload);
// Signed payload
v_signature := f_signWithEcdsaNistp256WithSha256(
v_hash
);
p_securedMessage := m_securedMessage_profileOther( // See Clause 7.3 Generic security profile for other signed messages
v_ToBeSignedSecuredMessage.header_fields,
v_ToBeSignedSecuredMessage.payload_fields,
{
m_trailer_field_signature(
m_signature(
m_ecdsaSignature(
m_eccPointecdsa_nistp256_with_sha256_y_coordinate_only(
substr(v_signature, 2, 32)
),
substr(v_signature, 34, 32)
)
}
); // End of template m_securedMessageBeacon
return true;
} // End of function f_buildGnSecuredDenm
garciay
committed
/**
* @desc This function build and sign the SecureMessage part covered by the signature process
* @param p_securedMessage The signed SecureMessage part
* @param p_unsecuredPayload The unsigned payload (e.g. a beacon)
* @param p_threeDLocation The ThreeDLocation value
* @param p_headerFileds Additional HeaderFields
* @return true on success, false otherwise
* @verdict Unchanged
*/
function f_buildGnSecuredOtherMessage(
out template (value) SecuredMessage p_securedMessage,
in octetstring p_unsecuredPayload,
in ThreeDLocation p_threeDLocation,
in template (omit) HeaderFields p_headerFileds := omit
) return boolean {
// Local variables
var octetstring v_secPayload, v_signature;
var Oct32 v_hash;
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
// Create SecuredMessage payload to be signed
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
{ // Field HeaderFields
m_header_field_signer_info(
m_signerInfo_certificate(
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX]
) // End of template m_signerInfo_certificate
), // End of template m_header_field_signer_info
m_header_field_generation_time(f_getCurrentTime()),
m_header_field_generation_location(
p_threeDLocation
)
}, // End of field HeaderFields
{
m_payload_unsecured(
p_unsecuredPayload
)
}, // End of field HeaderFields
e_signature
);
v_secPayload := bit2oct(encvalue(v_ToBeSignedSecuredMessage));
// Calculate the hash of the SecuredMessage payload to be signed
v_hash := f_hashWithSha256(v_secPayload);
// Signed payload
v_signature := f_signWithEcdsaNistp256WithSha256(
v_hash
);
p_securedMessage := m_securedMessage_profileOther( // See Clause 7.3 Generic security profile for other signed messages
v_ToBeSignedSecuredMessage.header_fields,
v_ToBeSignedSecuredMessage.payload_fields,
{
m_trailer_field_signature(
m_signature(
m_ecdsaSignature(
m_eccPointecdsa_nistp256_with_sha256_y_coordinate_only(
substr(v_signature, 2, 32)
),
substr(v_signature, 34, 32)
)
garciay
committed
)
)
}
); // End of template m_securedMessageBeacon
return true;
} // End of function f_buildGnSecuredOtherMessage
/**
*
* @desc Verify the signature of the provided secured message
* @param p_securedMessage
* @return true on success, false otherwise
* @verdict
*/
function f_verifyGnSecuredOtherMessage( // TODO For debug purpose only, to be removed
in template (value) SecuredMessage p_securedMessage
) return boolean {
// Local variables
var octetstring v_secPayload;
var octetstring v_signedData;
var Oct32 v_hash;
var integer v_counter;
var boolean v_result := false;
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
// Create SecuredMessage payload to be signed
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
p_securedMessage.header_fields,
p_securedMessage.payload_fields,
e_signature
);
v_secPayload := bit2oct(encvalue(v_ToBeSignedSecuredMessage));
// Calculate the hash of the SecuredMessage payload to be signed
v_hash := fx_hashWithSha256(v_secPayload);
// Verify payload
for (v_counter := 0; v_counter < lengthof(p_securedMessage.trailer_fields); v_counter := v_counter + 1) {
if (
(p_securedMessage.trailer_fields[v_counter].type_ == e_signature) and
(p_securedMessage.trailer_fields[v_counter].trailerField.signature_.algorithm == e_ecdsa_nistp256_with_sha256)
) {
v_signedData :=
'0000'O &
p_securedMessage.trailer_fields[v_counter].trailerField.signature_.signature_.ecdsa_signature.r.x &
p_securedMessage.trailer_fields[v_counter].trailerField.signature_.signature_.ecdsa_signature.s;
v_result := f_verifyWithEcdsaNistp256WithSha256(
v_hash,
v_signedData,
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX].subject_attributes[0].attribute.key.public_key.eccPoint.x,
PX_AT_CERTIFICATES[PX_CERTIFICATE_CONFIG_IDX].subject_attributes[0].attribute.key.public_key.eccPoint.y.y
);
}
} // End of 'for' statement
return v_result;
} // End of function f_verifyGnSecuredOtherMessage
} // End of group hostSignatureHelpers
group deviceSignatureHelpers {
/**
* @desc Verify the signature of the provided secured message
* @param p_aaCertifcate Certificate Authority certificate
* @param p_atCertificate Authorization Ticket certificate
* @return true on success, false otherwise
* @verdict
*/
function f_verifyCertificateSignature(
in template (value) Certificate p_aaCertifcate,
in template (value) Certificate p_atCertificate
) return boolean {
// TODO To be implemented
return false;
}
/**
* @desc Verify the signature of the provided secured message
* @param p_securedMessage
* @return true on success, false otherwise
* @verdict
*/
function f_verifyGnSecuredOtherMessageWithDeviceCertificate(
in template (value) SecuredMessage p_securedMessage,
in template (value) Certificate p_certificate
) return boolean {
// Local variables
var octetstring v_secPayload;
var octetstring v_signedData;
var Oct32 v_hash;
var integer v_counter;
var boolean v_result := false;
var template (value) ToBeSignedSecuredMessage v_ToBeSignedSecuredMessage;
// Create SecuredMessage payload to be signed
v_ToBeSignedSecuredMessage := m_ToBeSignedSecuredMessage_profileOther(
p_securedMessage.header_fields,
p_securedMessage.payload_fields,
e_signature
);
v_secPayload := bit2oct(encvalue(v_ToBeSignedSecuredMessage));
// Calculate the hash of the SecuredMessage payload to be signed
v_hash := fx_hashWithSha256(v_secPayload);
// Verify payload
for (v_counter := 0; v_counter < lengthof(p_securedMessage.trailer_fields); v_counter := v_counter + 1) {
if (
(p_securedMessage.trailer_fields[v_counter].type_ == e_signature) and
(p_securedMessage.trailer_fields[v_counter].trailerField.signature_.algorithm == e_ecdsa_nistp256_with_sha256)
) {
v_signedData :=
'0000'O &
p_securedMessage.trailer_fields[v_counter].trailerField.signature_.signature_.ecdsa_signature.r.x &
p_securedMessage.trailer_fields[v_counter].trailerField.signature_.signature_.ecdsa_signature.s;
v_result := f_verifyWithEcdsaNistp256WithSha256(
v_hash,
v_signedData,
p_certificate.subject_attributes[0].attribute.key.public_key.eccPoint.x,
p_certificate.subject_attributes[0].attribute.key.public_key.eccPoint.y.y
);
}
} // End of 'for' statement
return v_result;
} // End of function f_verifyGnSecuredOtherMessageWithDeviceCertificate
} // End of group deviceSignatureHelpers
garciay
committed
* @desc return SecuredMessage header field of given type or null if none
* @param p_msg the SecuredMessage
* @param p_type header field type
* @return HeaderField of given type if any or null
*/
function f_getMsgHeaderField(
in SecuredMessage p_securedMessage,
in HeaderFieldType p_headerFieldType
) return HeaderField {
var HeaderField v_return;
var integer v_length := lengthof(p_securedMessage.header_fields);
var integer v_index;
for (v_index := 0; v_index < v_length; v_index := v_index + 1) {
if (p_securedMessage.header_fields[v_index].type_ == p_headerFieldType) {
v_return := p_securedMessage.header_fields[v_index];
break;
}
}
return v_return;
}
/**
* @desc return SignerInfo SecuredMessage field
*/
function f_getMsgSignerInfo(
in SecuredMessage p_securedMessage
) return SignerInfo {
var HeaderField v_hf := f_getMsgHeaderField(p_securedMessage, e_signer_info);
return v_hf.headerField.signer;
}
return null;
}
}// End of group messageGetters
group certificateGetters {
function f_getCertificateValidityRestriction(
in Certificate p_cert,
in ValidityRestrictionType p_type
) return ValidityRestriction {
var ValidityRestriction v_return;
var integer v_length := lengthof(p_cert.validity_restrictions);
for (v_index := 0; v_index < v_length; v_index := v_index + 1) {
if( p_cert.validity_restrictions[v_index].type_ == p_type ) {
v_return := p_cert.validity_restrictions[v_index];
break;
}
}
return v_return;
}
function f_getCertificateSignerInfo (in Certificate p_cert)
return SignerInfo {
var SignerInfo ret;
if (lengthof(p_cert.signer_infos) > 0) {
ret := p_cert.signer_infos[0];
}
return ret;
}
function f_askForCertificateChain (in HashedId3s p_digests) {
} // End of group helpersFunctions
group externalFunctions {
/**
* @desc Produces a 256-bit (32-byte) hash value
* @param p_toBeHashedData Data to be used to calculate the hash value
* @return The hash value
*/
external function fx_hashWithSha256(in octetstring p_toBeHashedData) return Oct32;
/**
* @desc Produces a Elliptic Curve Digital Signature Algorithm (ECDSA) signaturee
* @param p_ToBeSignedSecuredMessage The data to be signed
* @param p_privateKey The private key
* @return The signature value
*/
external function fx_signWithEcdsaNistp256WithSha256(in octetstring p_ToBeSignedSecuredMessage, in octetstring/*UInt64*/ p_privateKey) return octetstring;
/**
* @desc Verify the signature of the specified data
* @param p_toBeVerifiedData The data to be verified
* @param p_signature The signature
* @param p_ecdsaNistp256PublicKeyX The public key (x coordinate)
* @param p_ecdsaNistp256PublicKeyY The public key (y coordinate)
* @return true on success, false otherwise
*/
external function fx_verifyWithEcdsaNistp256WithSha256(in octetstring p_toBeVerifiedData, in octetstring p_signature, in octetstring p_ecdsaNistp256PublicKeyX, in octetstring p_ecdsaNistp256PublicKeyY) return boolean;
* @desc Produce a new public/private key pair based on Elliptic Curve Digital Signature Algorithm (ECDSA) algorithm.
* This function should not be used by the ATS
* @param p_privateKey The new private key value
* @param p_publicKeyX The new public key value (x coordinate)
* @param p_publicKeyX The new public key value (y coordinate)
* @return true on success, false otherwise
*/
external function fx_generateKeyPair(out octetstring/*UInt64*/ p_privateKey, out octetstring p_publicKeyX, out octetstring p_publicKeyY) return boolean;
} // End of group externalFunctions