title: Since which java version SHA-256 and SHA256withRSA are supported for timestamp at signed jar files
body: <p>I have the following entry in the signature of my jar file</p>
  
  <pre><code>Timestamped by "CN=GlobalSign TSA for Advanced - G3 - 001-02, O=GMO GlobalSign K.K., C=JP" on Mo Apr 10 11:48:34 UTC 2017
   Timestamp digest algorithm: SHA-256
   Timestamp signature algorithm: SHA256withRSA, 2048-bit key
  </code></pre>
  
  <p>I already found out that the SHA-256 at the timestamp digest algoirthm and the SHA256withRSA at the timestamp signature algorithm are causing problems when running the jar file on a system which java version is below 1.7.0_76 (jar file is treaded as unsigned).</p>
  
  <p>Can somebody tell me from which java versions on these two algorithms are supported at the timestamp digest and at the timestamp signature?</p>