Hi I am trying to use a rfc3161 timestamp service to record timestamps. Basically I have a sha of some files and I would like to sign the file. basically I am using something like this # Generate Query and send $OPENSSL ts -query -data "$FL" -sha256 | $CURL -s -H "Content-Type:application/timestamp-query" --data-binary "@-" $TSA > "${FL}.tsr" $OPENSSL ts -reply -in "${FL}.tsr" -text > "${FL}.ts.txt" where FL = is file. What I want to be able to do is verify the .tsr file testing that with openssl ts -verify -data SHA.sha -in SHA.sha.tsr where SHA.sha is the original FL but I get Verification: FAILED 140221656393544:error:2107C080:PKCS7 routines:PKCS7_get0_signers:signer certificate not found:pk7_smime.c:476: from the text output cat *.txt Status info: Status: Granted. Status description: unspecified Failure info: unspecified TST info: Version: 1 Policy OID: 2.16.840.1.113733.1.7.23.3 Hash Algorithm: sha256 Message data: 0000 - 8c 6d 95 5b e0 cd 8b c9-df 8c ab 57 45 c4 69 e6 .m.[.......WE.i. 0010 - 7a b9 ce cb 14 8f 55 25-91 2e 57 37 3e 5c b8 d5 z.....U%..W7>\.. Serial number: 0xBEAF663E1CD2F0D029C1A641AD2F9137A5F097C9 Time stamp: Apr 8 04:58:08 2016 GMT Accuracy: 0x1E seconds, unspecified millis, unspecified micros Ordering: no Nonce: 0x8E67A9941BCB2570 TSA: DirName:/C=US/O=Symantec Corporation/OU=Symantec Trust Network/CN=Symantec SHA256 TimeStamping Signer - G1 Extensions: I am guessing my problem is the above certificate is not in the ssl path. and currently I am unable to find it on the symantec site. Am I doing the right think ? I have also looked at global sign and similar issue, find the cert what am i missing A