in src/main/java/com/aws/sap/sample/lambda/sap/oauth/TrustData.java [23:29]
private X509Certificate getSigningCertificate()
throws IOException, KeyStoreException, NoSuchAlgorithmException, CertificateException, UnrecoverableKeyException {
KeyStoreHandler _KeyStoreHandler = new S3KeyStoreHandler();
Map<String, Object> keys = _KeyStoreHandler.getKeys(cfg);
return (X509Certificate)keys.get(KeyStoreHandler.KS_PUBLIC_KEY);
}