Set the JWS Protected Header

See more JSON Web Signatures (JWS) Examples

Demonstrates Jws.SetProtectedHeader, which sets the integrity-protected header for a signer from a JsonObject. The header specifies the signature algorithm (alg).

require 'chilkat'

success = false

jws = Chilkat::CkJws.new()

#  Build the JWS protected header.  The "alg" member names the signature algorithm.
header = Chilkat::CkJsonObject.new()
header.UpdateString("alg","HS256")

#  Set the protected header for signer index 0.  The protected header is integrity-protected: it is
#  covered by the signature.
success = jws.SetProtectedHeader(0,header)
if (success == false)
    print jws.lastErrorText() + "\n";
    exit
end

print "Protected header set." + "\n";