The encryption key for Spring Webflow (cas.webflow.crypto.encryption.key) is not a JSON Web Key. It's a randomly-generated string of 16 octets, Base64-encoded. You can generate it with OpenSSL:
openssl rand -base64 16 > webflow-enc.txt Also, I believe you need a '-s' in front of the size argument for the other three: java -jar jwk-gen.jar -t oct *-s* 256 -o tgc-enc.jwks java -jar jwk-gen.jar -t oct *-s* 512 -o tgc-sig.jwks java -jar jwk-gen.jar -t oct *-s* 512 -o webflow-sig.jwks --Dave P.S. - I'm guessing on the '-s' issue; I used the web-based version of the key generator rather than the jar file. -- DAVID A. CURRY, CISSP *DIRECTOR OF INFORMATION SECURITY* INFORMATION TECHNOLOGY 71 FIFTH AVE., 9TH FL., NEW YORK, NY 10003 +1 212 229-5300 x4728 • [email protected] [image: The New School] On Thu, Sep 13, 2018 at 4:01 PM Curtis Ruck <[email protected]> wrote: > The problem is due to the chicken and egg issue. I need to prepopulate > the cas.properties, so the service can start up and work (without human > intervention). I'm trying my best to avoid having to start a service, > parse the logs, and modify config, then restart the service. The > documentation seems very light on these keys. > > On Thursday, September 13, 2018 at 10:03:02 AM UTC-4, William E. wrote: >> >> +1 >> >> I ended up grabbing values from the cas startup logs and setting in my >> cas.properties. Seems to work. >> >> >> On Wednesday, September 12, 2018 at 3:34:32 PM UTC-5, Curtis Ruck wrote: >>> >>> So i'm trying to automate the generation and persistence of the >>> cas.tgc.crypto and cas.webflow.crypto encryption and signing keys. >>> >>> I'm using the jwk-gen.jar, and when i store the key in cas.properties, >>> i end up with "Invalid AES key length: 43 bytes" when trying to access the >>> login page. >>> >>> >>> If I let CAS generate a key, its the same exact string length (43 >>> bytes). What is different between my key versus cas's generated keys? Then >>> i'm extracting the k value from the json, and inserting it into my >>> cas.properties. >>> >>> java -jar jwk-gen.jar -t oct 256 -o tgc-enc.jwks >>> java -jar jwk-gen.jar -t oct 512 -o tgc-sig.jwks >>> java -jar jwk-gen.jar -t oct 256 -o webflow-enc.jwks >>> java -jar jwk-gen.jar -t oct 512 -o webflow-sig.jwks >>> >> -- > - Website: https://apereo.github.io/cas > - Gitter Chatroom: https://gitter.im/apereo/cas > - List Guidelines: https://goo.gl/1VRrw7 > - Contributions: https://goo.gl/mh7qDG > --- > You received this message because you are subscribed to the Google Groups > "CAS Community" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/a/apereo.org/d/msgid/cas-user/16619ee4-f77f-4436-9237-5a0e812bd17f%40apereo.org > <https://groups.google.com/a/apereo.org/d/msgid/cas-user/16619ee4-f77f-4436-9237-5a0e812bd17f%40apereo.org?utm_medium=email&utm_source=footer> > . > -- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/CA%2Bd9XAMb%3DeuC17W3_-4uhAUZeyj95p71jfbjHv%3DVCq_dHt_hVQ%40mail.gmail.com.
