Some logs shall be removed later
Variable initialization with null shall be removed. Used TTCN-3 isbound() function

f_waitForCertificateChain
f_askAndWaitForCertificateChain
f_isRectangularRegionsInside (TODO)

f_verifyGnSecuredMessageSignatureWithCertificate (msg, cert)
f_verifyCertificateSignatureWithPublicKey (cert, key)
f_verifyCertificateSignatureWithIssuingCertificate (cert, cert)
f_HashedId8FromSha256
f_HashedId3FromHashedId8

f_verifyCertificateSignatureWithIssuingCertificate
f_verifyGnSecuredMessageWithPublicKey
f_verifyGnSecuredMessageWithDeviceCertificate

Add HeaderFields parameter in f_buildxxx functions

f_getCertificateSignerInfo
f_askForCertificateChain (TODO)

Adding test unit to build a encode/decode a secured beacon

helpers for certificate fields retrieving