How to successfully import ASA self-signed certificate?

[endpoint]

On ASA 9.1 i am trying to export an Identity certificate, self-signed certificate into p12 file so i can import it into laptop and used it for secure connection to ASA over ASDM. I can add certificate OK using ASDM, certificate show up OK in Certificate management/dentity certificate. Exported certificate into .p12 file with passphrase OK.

In Win XP and Windows 7 every time i try to import certificate i got message that password is incorrect. Yes, i did type correct password.

Even thru cli i got the same error when trying to import the file.

ASA(config)# crypto ca export ASDM_TRUSTPOINT pkcs12 password

Exported pkcs12 follows:

-----BEGIN PKCS12-----

MIIHPwIBAzCCBvkGCSqGSIb3DQEHAaCCBuoEggbmMIIG4jCCBt4GCSqGSIb3DQEH

BqCCBs8wggbLAgEAMIIGxAYJKoZIhvcNAQcBMBsGCiqGSIb3DQEMAQMwDQQItd0L

.....

7e5QezkgxXzmCJKpv3GqQV5/tfk66ySnBMCGrMzsQKBa32wzHYcSerSEePNXzudJ

Frdyc3ETMXECvO83gujQZLyJ9DfPaDy4gZHwEs9fwGqpJel/NTwUo16dtzO2Vbko

1kc8kd

-----END PKCS12-----

Any tips or tricks how to get this simple task completted? Is maybe file format not right?

[Michal Garcarz · Accepted solution]

Hi

Please show the error ASA is reporting during import.

It's working correctly with 9.1(0)2, example:

ASA9(config)# crypto ca trustpoint TP

ASA9(config-ca-trustpoint)# enrollment self

ASA9(config)# crypto ca enroll TP

WARNING: Trustpoint TP has already enrolled and has

a device cert issued to it.

If you successfully re-enroll this trustpoint,

the existing certificate will be replaced.

Do you want to continue with re-enrollment? [yes/no]: yes

% The fully-qualified domain name in the certificate will be: ASA9

% Include the device serial number in the subject name? [yes/no]: yes

Generate Self-Signed Certificate? [yes/no]: yes

ASA9(config)#

ASA9(config)# crypto ca export TP pkcs12 123456

Exported pkcs12 follows:

-----BEGIN PKCS12-----

MIIGHwIBAzCCBdkGCSqGSIb3DQEHAaCCBcoEggXGMIIFwjCCBb4GCSqGSIb3DQEH

BqCCBa8wggWrAgEAMIIFpAYJKoZIhvcNAQcBMBsGCiqGSIb3DQEMAQMwDQQIp8j1

+5Rh9TQCAQGAggV4DUlYOI+VlGxuCXiGnDTYx+cR5XjPca7KW7L50D5lLQQHLr+U

fV+QVEaELnQ1MKsMm87zl9AuycuI9EeOJnPTF9Ddxy32ODzaZ4/3BaXnHl2ETyzM

IohydDJCfscT0r2TPNlE8XSknDfftK+3g3Aa0Gi+Nsq1+NXxTdYcfdXpZHvD9tk0

QZInQy1UG+NhCERyOe6SIbynuCBfksk9g+rRjeNW4bTNRDpCJ1DnrtpN6BCq8VGN

QMQagUZ1ONNLaFtQegd17RxWzXUZiWQgqf0jUZnr/BJQI9bPrISkA+JnysNU3MvS

WVKKfyGQcsYD4ExH+wi6xkohKi7hj80s9cFOyq+xpXjikZw9gKMcpoY2lLs4ivIl

4x9bB3EQ3xYW5nxbORwDx5xEyYLMUNkVRvC14ts+RB2QcEAXwq2JaaNuO6aBvjhj

8mpHjXR+wkxV8Mm+UYEed2f1SuzjtZ966OPYW0YkmXGTH+wt/rxbCROAqnmh6HGz

pU4H5/yhHgBIJOd6vZaKf5XlnX17wSniM+JRw4FsArVpuNOZFeCkDsHHFP6TPYII

h2aS2jBEH2KW0KuzEP0rHOJ8WVjZgVucSu0pb+vVGw3MzsBl14CnL5kZcPe+81wJ

XnFibhkucyo9arO/kcc7OtMcAuoktGfBVb1jrX6Se/SY8GFrzYbikNuT4DI4/dw+

OinRXOX7S/Bhaefx4JSFYoL/7agD7f+kwzv7qAEyIQtjxoGgYuqY2lZVsbZL05dJ

0D3xDkSDOc9H/5M5nZqP/xwnqVMoREPvt/a+ZdGezfzApUYUH/VAU4NzST44QcvM

mdeeizpj0VwA7WdZOrMaJll927NGb1RikmtE+6ITgdiksuJVOeNWcXuq00sDAxvZ

fv7tOQxgWX0+LNKaFd1Ef7PF9KqsJLQnbC28GC9GBNExcc9Pm+Kqfq6qj7HEosHt

kPSfLFs0kkQQzq+G4xH6pzKQkG7Yt3xjLblI9IdWsCvuHLl8fgN0LHpVXPi9iftW

PqGG8f9dCymAqHKFEnZzOiCcNlKKG+ddAN7Qb4mGVBYsaeROvVWBL2aAzIDpL7Uv

8rFHsJVKk/yCruuNSDjmbbaTlYxb2iglo2MkgGsCO5X7fOPTCO3C+UikFyOi6/7c

fSyn+LE6Za76kdRn4V2FHGG767nBxFBR/bB+uzngR+w/GzIgHQahpJ2xJlKumS2M

yiy3kGYDhIN+WV6Lz91YwZpSobk1qrcn/7fzl2FFaY6+3+AgAXiOeVL7DyPHqm3N

gX1EGBzwqeN9h7BeaTJvebhrvtLDU97UnPeyyFZTiSQWZhhRjqsr5mI69NvDybkq

Db1Rx/Awnqg72RtnwOPxGNlTlRMUK7PjQNW6Kc2F7iy0byyNab9BEO6DNIN8RtXS

WyioVOdFrFXIYPYnuvoPp46remUaaI4B4428cS7YfWHP5pq0j0PUj0gZnJM7aM0c

VTHkVp2eZVSBFd9/Tv1q7+2tM5PhRE8ZCKcIIqJq2UJm4+HcIXGCgpIlfW3jL4t7

qmkfu0ClnHgmoSJBycPxTPaU38FQk2ZmYcnV2RAZxtwL51q5WhAvXi0amATF2h6h

FtcAP+Iq4Xx8s+wkcaK4I/puK0+wmMyslESWhq3RfB73BKyT9/J4FONliyAQP+4M

JKkvkMAPx7Do6fqItHhbRR4FxQXg+al21UTLZ9aaY7PGjuqMZ40JY175qPG7CJFn

bEOfHQGZjLbmqJfJByG6U5mQBoLr4XzTYPrtvErV/TrTGPK4RVATXgnQ/re7TD/G

p0klPQcDHBkbnAuMVt88Q4QlqZKAov8ofLZr8IvlKsfmPFTFpfqCQCIMa1uGo6P9

v8zGHGyvZwsOXwB1vMKAfpINCR0wPTAhMAkGBSsOAwIaBQAEFJb8DGrkwS6ApBkL

0TXZXRY3WGx3BBSBXw+QkTTFm7BL+FS1KoeOupwmowICBAA=

-----END PKCS12-----

ASA9(config)#

ASA9(config)#

ASA9(config)# no crypto ca trustpoint TP

WARNING: Removing an enrolled trustpoint will destroy all

certificates received from the related Certificate Authority.

Are you sure you want to do this? [yes/no]: yes

ASA9(config)# crypto key zeroize rsa

WARNING: All RSA keys will be removed.

WARNING: All device digital certificates issued using these keys will also be removed.

Do you really want to remove these keys? [yes/no]: yes

ASA9(config)# crypto ca trustpoint TP2

ASA9(config)# crypto ca import TP2 pkcs12 123456

Enter the base 64 encoded pkcs12.

End with the word "quit" on a line by itself:

MIIGHwIBAzCCBdkGCSqGSIb3DQEHAaCCBcoEggXGMIIFwjCCBb4GCSqGSIb3DQEH

BqCCBa8wggWrAgEAMIIFpAYJKoZIhvcNAQcBMBsGCiqGSIb3DQEMAQMwDQQIp8j1

+5Rh9TQCAQGAggV4DUlYOI+VlGxuCXiGnDTYx+cR5XjPca7KW7L50D5lLQQHLr+U

fV+QVEaELnQ1MKsMm87zl9AuycuI9EeOJnPTF9Ddxy32ODzaZ4/3BaXnHl2ETyzM

IohydDJCfscT0r2TPNlE8XSknDfftK+3g3Aa0Gi+Nsq1+NXxTdYcfdXpZHvD9tk0

QZInQy1UG+NhCERyOe6SIbynuCBfksk9g+rRjeNW4bTNRDpCJ1DnrtpN6BCq8VGN

QMQagUZ1ONNLaFtQegd17RxWzXUZiWQgqf0jUZnr/BJQI9bPrISkA+JnysNU3MvS

WVKKfyGQcsYD4ExH+wi6xkohKi7hj80s9cFOyq+xpXjikZw9gKMcpoY2lLs4ivIl

4x9bB3EQ3xYW5nxbORwDx5xEyYLMUNkVRvC14ts+RB2QcEAXwq2JaaNuO6aBvjhj

8mpHjXR+wkxV8Mm+UYEed2f1SuzjtZ966OPYW0YkmXGTH+wt/rxbCROAqnmh6HGz

pU4H5/yhHgBIJOd6vZaKf5XlnX17wSniM+JRw4FsArVpuNOZFeCkDsHHFP6TPYII

h2aS2jBEH2KW0KuzEP0rHOJ8WVjZgVucSu0pb+vVGw3MzsBl14CnL5kZcPe+81wJ

XnFibhkucyo9arO/kcc7OtMcAuoktGfBVb1jrX6Se/SY8GFrzYbikNuT4DI4/dw+

OinRXOX7S/Bhaefx4JSFYoL/7agD7f+kwzv7qAEyIQtjxoGgYuqY2lZVsbZL05dJ

0D3xDkSDOc9H/5M5nZqP/xwnqVMoREPvt/a+ZdGezfzApUYUH/VAU4NzST44QcvM

mdeeizpj0VwA7WdZOrMaJll927NGb1RikmtE+6ITgdiksuJVOeNWcXuq00sDAxvZ

fv7tOQxgWX0+LNKaFd1Ef7PF9KqsJLQnbC28GC9GBNExcc9Pm+Kqfq6qj7HEosHt

kPSfLFs0kkQQzq+G4xH6pzKQkG7Yt3xjLblI9IdWsCvuHLl8fgN0LHpVXPi9iftW

PqGG8f9dCymAqHKFEnZzOiCcNlKKG+ddAN7Qb4mGVBYsaeROvVWBL2aAzIDpL7Uv

8rFHsJVKk/yCruuNSDjmbbaTlYxb2iglo2MkgGsCO5X7fOPTCO3C+UikFyOi6/7c

fSyn+LE6Za76kdRn4V2FHGG767nBxFBR/bB+uzngR+w/GzIgHQahpJ2xJlKumS2M

yiy3kGYDhIN+WV6Lz91YwZpSobk1qrcn/7fzl2FFaY6+3+AgAXiOeVL7DyPHqm3N

gX1EGBzwqeN9h7BeaTJvebhrvtLDU97UnPeyyFZTiSQWZhhRjqsr5mI69NvDybkq

Db1Rx/Awnqg72RtnwOPxGNlTlRMUK7PjQNW6Kc2F7iy0byyNab9BEO6DNIN8RtXS

WyioVOdFrFXIYPYnuvoPp46remUaaI4B4428cS7YfWHP5pq0j0PUj0gZnJM7aM0c

VTHkVp2eZVSBFd9/Tv1q7+2tM5PhRE8ZCKcIIqJq2UJm4+HcIXGCgpIlfW3jL4t7

qmkfu0ClnHgmoSJBycPxTPaU38FQk2ZmYcnV2RAZxtwL51q5WhAvXi0amATF2h6h

FtcAP+Iq4Xx8s+wkcaK4I/puK0+wmMyslESWhq3RfB73BKyT9/J4FONliyAQP+4M

JKkvkMAPx7Do6fqItHhbRR4FxQXg+al21UTLZ9aaY7PGjuqMZ40JY175qPG7CJFn

bEOfHQGZjLbmqJfJByG6U5mQBoLr4XzTYPrtvErV/TrTGPK4RVATXgnQ/re7TD/G

p0klPQcDHBkbnAuMVt88Q4QlqZKAov8ofLZr8IvlKsfmPFTFpfqCQCIMa1uGo6P9

v8zGHGyvZwsOXwB1vMKAfpINCR0wPTAhMAkGBSsOAwIaBQAEFJb8DGrkwS6ApBkL

0TXZXRY3WGx3BBSBXw+QkTTFm7BL+FS1KoeOupwmowICBAA=

quit

INFO: Import PKCS12 operation completed successfully

ASA9(config)#

ASA9(config)# sh crypto ca certificates

Certificate

  Status: Available

  Certificate Serial Number: 6e85f150

  Certificate Usage: General Purpose

  Public Key Type: RSA (1024 bits)

  Signature Algorithm: SHA1 with RSA Encryption

  Issuer Name:

    hostname=ASA9+serialNumber=123456789AB

  Subject Name:

    hostname=ASA9+serialNumber=123456789AB

  Validity Date:

    start date: 15:52:01 UTC Jan 12 2013

    end   date: 15:52:01 UTC Jan 10 2023

  Associated Trustpoints: TP2

You might want to enable debugs: "debug crypto ca 255".

Be carefull when typing password - watch out for trailing space !

--

Michal

[mb0587]

Hi, I had this same issue and after a lot of investigation I've made it work.

The issue is that the ASA expects to have the certificate in pkcs(.p12) format encoded with base64

you just need to take your .pfx file and encode in base64 with the following command

#openssl base64 -in xxxxx.pfx > xxxxx.base64

Then you need to open the file and add the PKCS Header and footer just copy and paste it without leaving any space.

-----BEGIN PKCS12-----
-----END PKCS12-----

The end result would be like this:

-----BEGIN PKCS12-----
yH54bCdLWTlWGhXnPC9pGpL9aXGgsmQV/odoxbEa+fZiDpLL+ZRrN2Up7onCC53l
4Qoh76ju/j9vMlRIE5bAUvMqsCl50CP//C50IuSTvBWyN1/M0RclwK4D7wtwGWfz
.................
.................
m3MylWIXt83bP45nzCqmMKc1aiOVbdQQo8M7MSUwIwYJKoZIhvcNAQkVMRYEFDLo
hsQ3m0hoYwLODqBXBpfpM7mWMDEwITAJBgUrDgMCGgUABBR1pxMEpEZwWkvnJauW
9UvnuP403wQIyRcfzvL8incCAggA
-----END PKCS12-----

Now you have your certificate ready for importing it into the ASA. Execute:

crypto ca certificate [your truspoint name you want] pkcs12 [pkcs12 password]

My example

ASA(config)# crypto ca certificate wildcard.brato.local pkcs12 1234567890
Enter the base 64 encoded pkcs12.
End with the word "quit" on a line by itself:

-----BEGIN PKCS12-----
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
....
....
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
-----END PKCS12-----
quit

INFO: Import PKCS12 operation completed successfully

Verify that the truspoint was created:
ASA(config)# show crypto ca trustpoints BRATO

Trustpoint BRATO:
Not authenticated.


Verify that the key was created:
ASA(config)# show crypto key mypubkey rsa | b BRATO
Key name: BRATO
Usage: General Purpose Key
Modulus Size (bits): 1024
Key Data:

The last step is to add the root and the intermediate certifcates to the chain. That is why you have a NOT AUTHENTICATED truspoint.
You need to encode your certificates chain with base64 again. Remember that on the certificate chain you need to form the chain in the issuing order:

CERT INTERMEDIATE
CERT ROOT1
CERT ROOT2
CERT ETC.

you will end with something like this:

-----BEGIN CERTIFICATE-----
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
....
....
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
....
....
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
-----END CERTIFICATE-----

Execute:

crypto ca truspoint BRATO
enrollment terminal
exit
crypto ca authenticate BRATO
Enter the base 64 encoded CA certificate.
End with the word "quit" on a line by itself

MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB
....
....
MIIGDjCCA/agAwIBAgIQNoJef7WkgZN+9tFza7k8pjANBgkqhkiG9w0BAQwFADCB

Certificate has the following attributes:
Fingerprint: xxxxxxx xxxxxxxx xxxxxxx xxxxx
% Do you accept this certificate? [yes/no]: yes
Trustpoint CA certificate accepted.
% Certificate successfully imported

ASA(config)# show crypto ca trustpoint BRATO
Trustpoint BRATO:
Subject Name:
cn=brato-DC-CA
dc=brato
dc=local
Serial Number: gglfshlkahfklsahflkhaslkf
Certificate configured.