zzh@ZZHPC:~$ openssl rand -hex 64 273fabd76b8dd62621325e4b04af332dd739702ae553ffc034a4af205faedbfee21202d3808e3640770b682c151aaa8308871533572d60947724b93850dc731c zzh@ZZHPC:~$ openssl rand -hex 32 dadb73182b410848a9bd2442736a519b26f7de7ffcb89a2b68a126adbed40d1b zzh@ZZHPC:~$ openssl rand -hex 64 | head -c 32 efb10b63497c8afcb3af244c90285e0ezzh@ZZHPC:~$
zzh@ZZHPC:~$ openssl rand -hex 32 | head -c 32 e1c4c7e4fd05a92c219861e53724ec86zzh@ZZHPC:~$
