Hi, Can following behaviour be confirmed as expected? OpenSSL verify test (test_verify) fails Env- c_rehash run using Cygwin. Run c_rehash on /path/to/certs/demo Cmd - openssl verify -CApath ../certs/demo ../certs/demo/*.pem Cause - Symbolic links (from hash.0 to file.pem) created by c_rehash when run with Cygwin could not be read by OpenSSL.exe verify command. Result - Error 20: could read issuer certificate OpenSSL.exe fails to establish certificate chain. Workaround - Modify c_rehash to use MS API 'mklink' Thank You.