github.com/trustbloc/kms-go@v1.1.2/crypto/tinkcrypto/primitive/bbs (about) api bbs.go bbs_key_template.go bbs_key_template_test.go bbs_primitive_factory_test.go bbs_signer_factory.go bbs_signer_key_manager.go bbs_signer_key_manager_test.go bbs_verifier_factory.go bbs_verifier_key_manager.go bbs_verifier_key_manager_test.go subtle