https://bz.apache.org/bugzilla/show_bug.cgi?id=58741
Bug ID: 58741
Summary: Large number of public certificates in keystore causes
handshake timeout with Http11Nio2Protocol
Product: Tomcat 8
Version: 8.0.24
Hardware: PC
OS: Linux
Status: NEW
Severity: major
Priority: P2
Component: Connectors
Assignee: [email protected]
Reporter: [email protected]
SSL Handshake seems to be timing out with Http11Nio2Protocol and large number
of entries in the keystore.
I have a connector definition as something like below in server.xml.
<Connector port="10443"
protocol="org.apache.coyote.http11.Http11Nio2Protocol" maxHttpHeaderSize="4096"
maxThreads="1050" minSpareThreads="25"
maxKeepAliveRequests="-1" keepAliveTimeout="180000"
enableLookups="false" disableUploadTimeout="true"
acceptCount="10" scheme="https" secure="true" SSLEnabled="true"
clientAuth="want" sslProtocol="TLSv1.2"
sslEnabledProtocols="TLSv1.2,TLSv1"
connectionTimeout="180000"
keystoreFile="workforce.keystore"
keystorePass="xxx" algorithm="SunX509"
truststoreFile="workforce.keystore"
truststorePass="xxx"
truststoreType="JKS"
keyAlias="tomcat"
compression="on"
compressionMinSize="2048"
trustManagerClassName="com.workforcesoftware.tomcatssl.WorkforceTrustManager"
useServerCipherSuitesOrder="true"
ciphers="TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
TLS_EMPTY_RENEGOTIATION_INFO_SCSV, TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_RSA_WITH_AES_128_CBC_SHA256,
TLS_RSA_WITH_AES_128_CBC_SHA"
compressableMimeType="text/html,text/xml,text/js,text/css"/>
Steps to reproduce,
1) Define a connector with something like above.
2) Use a large keystore file. I have a large keystore with one private key with
alias tomcat (as defined in keyAlias) and large number of public certificates
that I trust (> 1400). Sample keystore file is attached.
3) Start/Restart the tomcat.
4) Try to access the application/tomcat using the specified connector from the
browser.
5) SSL handshake seems to be timing out. SSL/Handshake debug log is attached.
When I change the protocol from Http11Nio2Protocol to Http11NioProtocol, SSL
handshake seems to be working fine. Besides this, I have also tried separating
out keystore (with only tomcat entry) and trust store (with all public
certificates), but with that configuration, the handshake still seems to be
timing out.
Thanks
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