1:24 p.m.
Florian,
I don't have a whole lot of time at this point, but I could offer a
little info from my experience with LunaSA in case of private key
unwrapping (your case seems to be sym key unwrapping though). For LunaSA
private key unwrapping the isSensitive flag needs to be false and
isExtractable needs to be true, and the key needs to be "temporary".
In CRSEnrollment.java where it fails to decrypt PKCS10 blob,
kw.unwrapSymmetric() is being called to decrypt the symmetric key and
failed. My guess is that the usage or flags (internally CK_FLAGS) might
need to be manipulated similar to what I've done with private key
unwrapping in JSS
PK11KeyWrapper.c:Java_org_mozilla_jss_pkcs11_PK11KeyWrapper_nativeUnwrapPrivWithSym()
(search for "isLunasa").
Of course without spending actual time investigating, this is just one
guess.
Another guess is that in the following call, "keylength" needs to e
specified: (given the symptom you reported, this might be a likely case)
sk = kw.unwrapSymmetric(req.getWrappedKey(),
skt,
SymmetricKey.Usage.DECRYPT,
0); // keylength is ignored
If you are a customer, feel free to escalate the BZ. And if you are
not, you could try to vote in on https://pagure.io/dogtagpki/issue/442.
regards,
Christina
On 10/04/2017 05:40 AM, Supper Florian 6342 sIT wrote:
Dear dogtag team,
We’ve been using dogtag CAs (the RHEL packages in server-rpm repo)
together with Safenet HSMs for some years for handling SCEP requests.
We’re running into an issue again which we also had in the past: when
using the HSM (a requirement here), only SCEP requests using DES for
the encryption
can be decoded. When DES3 is used, dogtag throws an error with “could
not unwrap PKCS10 blob”. With no HSM, both algorithms work.
However, the DES3 requests themselves are OK: we can unpack the inner
pkcs#7, and decrypt the payload using ‘cmsutil’ (pointed at the nss db
of the CA instance)
and read the pkcs#10 request within. So the HSM itself has no problem
decrypting.
We also encountered this issue in the past with RHEL6 / DogTag 9, and
it is still present with RHEL7 / Dogtag 10. At that time, we were able
to configure the clients
to use DES to avoid the issue, but we can’t always dictate which
algorithm the clients use,
and DES is nevertheless very weak.
It may still be related the old BZ:
https://bugzilla.redhat.com/show_bug.cgi?id=825887 and be an issue
with the FIPS-2 mode (which we are using)
It appears to be an issue with Dogtag. If someone has a suggestion or
idea, we would appreciate hearing it.
Thanks in advances
BR
Florian
Below you can find all needed parameters and config which we used.
- CA is an subca - (But dont matter, because the same issue occures
also on an root ca)
- SCEP enrollment works with DES encryption (HSM attached)
- SCEP enrollment with DES3 works when __NO__ hsm is used
- SCEP requests (DES + 3DES) can be decoded when using cmsutil direct
against the HSM libary. (cmsutil -d /var/lib/pki/pkit04/alias -D -i
inner_pkcs7_request.p7 -o request_des3.der )
- HSM client logs can be provided if needed
- For us is seems to be a problem in dogtag.
#Installed packages
pki-base-java-10.3.3-19.el7_3.noarch
pki-ca-10.3.3-19.el7_3.noarch
pki-base-10.3.3-19.el7_3.noarch
pki-tools-10.3.3-19.el7_3.x86_64
pki-kra-10.3.3-19.el7_3.noarch
pki-symkey-10.3.3-19.el7_3.x86_64
pki-core-debuginfo-10.3.3-19.el7_3.x86_64
pki-server-10.3.3-19.el7_3.noarch
pki-javadoc-10.3.3-19.el7_3.noarch
#OS
Red Hat Enterprise Linux Server release 7.3 (Maipo)
#Java
java-1.8.0-openjdk-1.8.0.131-3.b12.el7_3.x86_64
#SafeNet LunaClient
Version : 5.4.1
Release : 2
#SCEP enrollment profile:
caRouterCert.cfg (default)
#SCEP config in CS.cfg
ca.scep.allowedEncryptionAlgorithms=DES3,DES
ca.scep.allowedHashAlgorithms=SHA1,SHA256,SHA512
ca.scep.enable=true
ca.scep.encryptionAlgorithm=DES3
ca.scep.hashAlgorithm=SHA1
ca.scep.nonceSizeLimit=16
#SSECP call
./sscep enroll -u http : / / pkit04 . eb . lan . at : 8080 / ca /
cgi-bin / pkiclient . exe -c pkit04-ca.crt -k local.key -r local.csr
-l cert.crt -S sha1 -E 3des
#debug log
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:263:init() CRSEnrollment: init: SCEP support is
enabled.
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:264:init() CRSEnrollment: init: SCEP nickname:
pkit04:caSigningCert cert-pkit04 CA
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:265:init() CRSEnrollment: init: CA nickname:
pkit04:caSigningCert cert-pkit04 CA
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:266:init() CRSEnrollment: init: Token name: pkit04
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:267:init() CRSEnrollment: init: Is SCEP using CA
keys: true
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:268:init() CRSEnrollment: init: mNonceSizeLimit: 16
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:269:init() CRSEnrollment: init: mHashAlgorithm: SHA1
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:270:init() CRSEnrollment: init: mHashAlgorithmList:
SHA1,SHA256,SHA512
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:273:init() CRSEnrollment: init:
mAllowedHashAlgorithm[0]=SHA1
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:273:init() CRSEnrollment: init:
mAllowedHashAlgorithm[1]=SHA256
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:273:init() CRSEnrollment: init:
mAllowedHashAlgorithm[2]=SHA512
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:275:init() CRSEnrollment: init:
mEncryptionAlgorithm: DES3
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:276:init() CRSEnrollment: init:
mEncryptionAlgorithmList: DES3,DES
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:279:init() CRSEnrollment: init:
mAllowedEncryptionAlgorithm[0]=DES3
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:279:init() CRSEnrollment: init:
mAllowedEncryptionAlgorithm[1]=DES
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:285:init() CRSEnrollment: init: mProfileId=caRouterCert
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:349:service() operation=PKIOperation
[03/Oct/2017:07:35:52][http-bio-8080-exec-1]:
CRSEnrollment.java:351:service()
message=MIIKywYJKoZIhvcNAQcCoIIKvDCCCrgCAQExCzAJBgUrDgMCGgUAMIIFnwYJKoZI
-...snip..
t3fqG6FkBAh3L1saONZJ0pfzOnnY5CZ4aJuf5ql3XA==
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
CRSEnrollment.java:920:handlePKIOperation() Processing PKCSReq
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
LdapBoundConnFactory.java:324:getConn() In LdapBoundConnFactory::getConn()
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
LdapBoundConnFactory.java:326:getConn() masterConn is connected: true
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
LdapBoundConnFactory.java:368:getConn() getConn: conn is connected true
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
LdapBoundConnFactory.java:398:getConn() getConn: mNumConns now 5
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
LdapBoundConnFactory.java:444:returnConn() returnConn: mNumConns now 6
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
CRSEnrollment.java:1164:unwrapPKCS10() failed to unwrap PKCS10
org.mozilla.jss.crypto.SymmetricKey$NotExtractableException
[03/Oct/2017:07:35:53][http-bio-8080-exec-1]:
CRSEnrollment.java:385:service() ServletException
javax.servlet.ServletException: Couldn't handle CEP request (PKCSReq)
- Could not unwrap PKCS10 blob: null
#Error in localhost_access log
10.10.10.10 - - [02/Oct/2017:11:09:27 +0200] "GET / ca / cgi-bin /
pkiclient . exe ? operation = PKIOperation & message =
MIIKzgYJKoZIhvcNAQcCoIIKvz...snip.. HTTP/1.0" 500 3071
#Error in localhost log
SEVERE: Servlet.service() for servlet [caSCEP] in context with path
[/ca] threw exception [Couldn't handle CEP request (PKCSReq) - Could
not unwrap PKCS10 blob: null] with root cause
javax.servlet.ServletException: Couldn't handle CEP request (PKCSReq)
- Could not unwrap PKCS10 blob: null
at
com.netscape.cms.servlet.cert.scep.CRSEnrollment.service(CRSEnrollment.java:386)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:288)
at
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:285)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:549)
at
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:320)
at
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:175)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:297)
at
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:191)
at
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:187)
at java.security.AccessController.doPrivileged(Native Method)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:186)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:288)
at
org.apache.catalina.security.SecurityUtil$1.run(SecurityUtil.java:285)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAsPrivileged(Subject.java:549)
at
org.apache.catalina.security.SecurityUtil.execute(SecurityUtil.java:320)
at
org.apache.catalina.security.SecurityUtil.doAsPrivilege(SecurityUtil.java:260)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.access$000(ApplicationFilterChain.java:55)
at
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:191)
at
org.apache.catalina.core.ApplicationFilterChain$1.run(ApplicationFilterChain.java:187)
at java.security.AccessController.doPrivileged(Native Method)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:186)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
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