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* @version $URL$
* $Id$
* @desc Module containing functions for Security Protocol
* @copyright ETSI Copyright Notification
* No part may be reproduced except as authorized by written permission.
* The copyright and the foregoing restriction extend to reproduction in all media.
* All rights reserved.
import from LibCommon_BasicTypesAndValues all;
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import from LibCommon_DataStrings all;
// LibIts
import from IEEE1609dot2BaseTypes language "ASN.1:1997" all;
import from IEEE1609dot2 language "ASN.1:1997" all;
import from EtsiTs103097Module language "ASN.1:1997" all;
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// LibItsCommon
import from LibItsCommon_Functions all;
import from LibItsCommon_TypesAndValues all;
import from LibItsSecurity_TypesAndValues all;
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import from LibItsSecurity_Templates all;
import from LibItsSecurity_Pixits all;
import from LibItsSecurity_TestSystem 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(
) 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 octetstring p_toBeSignedSecuredMessage,
in Oct32 p_privateKey
) runs on ItsSecurityBaseComponent return octetstring {
return fx_signWithEcdsaNistp256WithSha256(
} // End of function f_signWithEcdsaNistp256WithSha256
* @desc Compute the HashedId8 value from the hash value
* @param p_hash The hash value
* @return The HashedId8 value
* @verdict
*/
function f_HashedId8FromSha256(
) return HashedId8 {
return substr(p_hash, lengthof(p_hash) - 8, 8);
* @desc Compute the HashedId3 value from the HashedId8 value
* @param p_hashp_hashedId8 The HashedId8 value
* @return The HashedId3 value
* @verdict Unchanged
*/
function f_HashedId3FromHashedId8(
in HashedId8 p_hashedId8
) return HashedId3 {
return substr(p_hashedId8, lengthof(p_hashedId8) - 3, 3);
} // End of function f_HashedId3FromHashedId8
* @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
*/
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function f_verifyWithEcdsaNistp256WithSha256(
in octetstring p_toBeVerifiedData,
in octetstring p_signature,
in octetstring p_ecdsaNistp256PublicKeyX,
in octetstring p_ecdsaNistp256PublicKeyY
) return boolean {
// log("f_verifyWithEcdsaNistp256WithSha256: toBeVerifiedData", p_toBeVerifiedData);
// log("f_verifyWithEcdsaNistp256WithSha256: toBeVerifiedData length", lengthof(p_toBeVerifiedData));
// log("f_verifyWithEcdsaNistp256WithSha256: signature", p_signature);
// log("f_verifyWithEcdsaNistp256WithSha256: ecdsaNistp256PublicKeyX", p_ecdsaNistp256PublicKeyX);
// log("f_verifyWithEcdsaNistp256WithSha256: ecdsaNistp256PublicKeyY", p_ecdsaNistp256PublicKeyY);
return fx_verifyWithEcdsaNistp256WithSha256(
p_toBeVerifiedData,
p_signature,
p_ecdsaNistp256PublicKeyX,
p_ecdsaNistp256PublicKeyY);
} // End of function f_verifyWithEcdsaNistp256WithSha256
/**
* @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
*/
function f_generate_key_pair(
out octetstring p_privateKey,
out octetstring p_publicKeyX,
out octetstring p_publicKeyY
) return boolean {
return fx_generateKeyPair(p_privateKey, p_publicKeyX, p_publicKeyY);
}
* @desc Calculate digest over the certificate
* @param p_cert The certificate
* @see Draft ETSI TS 103 097 V1.1.14 Clause 4.2.13 HashedId8
function f_calculateDigestFromCertificate(
) return HashedId8 {
var octetstring v_toBeHashedData;
var octetstring v_hash;
v_toBeHashedData := bit2oct(encvalue(p_cert));
v_hash := f_hashWithSha256(v_toBeHashedData);
return substr(v_hash, lengthof(v_hash) - 8, 8);
} // End of function f_calculateDigestFromCertificate
) return UInt16 {
if (ischosen(p_duration.seconds)) {
return p_duration.seconds;
} else if (ischosen(p_duration.minutes)) {
return p_duration.minutes;
} else if (ischosen(p_duration.hours)) {
return p_duration.hours;
} else if (ischosen(p_duration.sixtyHours)) {
return p_duration.sixtyHours;
} else if (ischosen(p_duration.years)) {
return p_duration.years;
/**
* @desc Initialize [out] certificates according to the specified certificate name
* @param p_certificateName The certificate name to be used
* @param p_aaCertificate The AA certificate [out]
* @param p_atCertificate The AT certificate [out]
* @return true on succes, false otherwise
* @see Draft ETSI TS 103 097 V1.1.14 Clause 4.2.13 HashedId8
function f_prepareCertificates(
in template (omit) charstring p_certificateName,
out EtsiTs103097Certificate p_aaCertificate,
out EtsiTs103097Certificate p_atCertificate
) runs on ItsSecurityBaseComponent return boolean {
// Load certificates if required
if (/*Spirent change*/lengthof(p_certificateName)>0 and (valueof(p_certificateName) != cc_taCert_A)) {
if (f_readCertificate(valueof(p_certificateName), p_atCertificate) == false){
if (f_readCertificate(oct2str(p_atCertificate.toBeSigned.cracaId), p_aaCertificate) == false) {
return false;
}
} else {
p_atCertificate := vc_atCertificate;
p_aaCertificate := vc_aaCertificate;
}
// Store the certificte to build this message
vc_lastAtCertificateUsed := p_atCertificate;
return true;
} // End of function f_prepareCertificates
* @desc This function build and sign the SecureMessage part covered by the signature process
* @param p_securedMessage The signed SecureMessage part
* @param p_payloadField Payloads to be included in the message
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