Crypto pki certificate pool

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To specify parameters, you must create a trustpoint and configure it. To use default values, delete any existing self-signed trustpoints. Deleting all self-signed trustpoints causes the HTTPS server to generate a persistent self-signed certificate using default values as soon as the server is enabled. Perform this task to configure a certificate enrollment profile for enrollment or reenrollment. This task helps you to configure an enrollment profile for certificate enrollment or reenrollment of a router with a Cisco IOS CA that is already enrolled with a third-party vendor CA.

Enable a router that is enrolled with a third-party vendor CA to use its existing certificate to enroll with the Cisco IOS certificate server so the enrollment request is automatically granted. To enable this functionality, you must issue the enrollment credential command. Also, you cannot configure manual certificate enrollment. Perform the following tasks at the client router before configuring a certificate enrollment profile for the client router that is already enrolled with a third-party vendor CA so that the router can reenroll with a Cisco IOS certificate server:.

Specifies that an enrollment profile is to be used for certificate authentication and enrollment. If you configured the router to reenroll with a Cisco IOS CA, you should configure the Cisco IOS certificate server to accept enrollment requests only from clients already enrolled with the specified third-party vendor CA trustpoint to take advantage of this functionality. The feature enables sub-CAs to issue certificates to their clients when a root CA is offline.

The root certificate can be imported through the CLI first, and then it is used to validate the issuing sub CA certificate configured under the trustpoint. Enable revocation checking as per your environment before performing the following tasks. This enhancement enables automated validation of multiple trustpoints while maintaining zero-touch certificate enrollment through the SCEP enrollment protocol.

The request is then sent to a registration authority which validates the SUDI certificate through a local trustpoint. The local trustpoint validates the router SCEP credentials. If the validation is successful, the registration authority uses the SUDI certificate to decrypt the signature and validate the hash. After the hash validation is also successful, the registration authority forwards the SCEP request to the certificate authority CA. The CA then signs the request and sends the certificate back to the registration authority which in turn forwards the certificate to the router.

At this point, the SCEP enrollment is complete. In the case of a certificate renewal, when the same process is followed, the renewal fails. This is because the registration authority cannot validate the renewal request since the router uses the current certificate as the credentials.

Since the registration authority can use only one trustpoint to validate the router identity, the certificate renewal fails. To overcome this challenge, you can now configure the registration authority to use multiple trustpoints to validate the router credentials. In this manner, the initial enrollment as well as the renewal works seamlessly. You can configure from upto 5 trustpoints by using this command. For example:. After you configure the trustpoints, the registration authority validates the certificates that are received by using one of the configured trustpoints.

The validation starts from the first trustpoint. If the validation is successful, the certificate is renewed. Else, the authority validates using the next available trustpoint. Grant auto trustpoint and grant auto tp-list are mutually exclusive. You cannot run the grant auto tp-list command if you have already configured grant auto trustpoint.

Specifies that keys generated on initial auto enroll will be generated on and stored o n! The following example shows how to configure the router to automatically enroll with a CA on startup, enabling automatic rollover, and how to specify all necessary enrollment information in the configuration:. In this example, keys are neither regenerated nor rolled over.

The regenerate keyword is issued, so a new key will be generated for the certificate and reissued when the automatic rollover process is initiated. The renewal percentage is configured as 90 so if the certificate has a lifetime of one year, a new certificate is requested The following example shows how to configure certificate enrollment using the manual cut-and-paste enrollment method:. You can verify that the certificate was successfully imported by issuing the show crypto pki certificates command:.

A router can have only one self-signed certificate. If you attempt to enroll a trustpoint configured for a self-signed certificate and one already exists, you receive a notification and are asked if you want to replace it. If so, a new self-signed certificate is generated to replace the existing one. The following example shows how to enable the HTTPS server and generate a default trustpoint because one was not previously configured:.

Creation of the key pair used with the self-signed certificate causes the Secure Shell SSH server to start. This behavior cannot be suppressed. You can use the ip ssh rsa keypair-name unexisting-key-pair-name command to disable the SSH server. The following example displays information about the self-signed certificate that you just created:.

The following example displays information about the key pair corresponding to the self-signed certificate:. The second key pair with the name TP-self-signed The Cisco Support and Documentation website provides online resources to download documentation, software, and tools. Use these resources to install and configure the software and to troubleshoot and resolve technical issues with Cisco products and technologies.

Access to most tools on the Cisco Support and Documentation website requires a Cisco. The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

This feature introduces certificate autoenrollment, which allows the router to automatically request a certificate from the CA that is using the parameters in the configuration. The following commands were introduced by this feature: auto-enroll , rsakeypair , show crypto ca timers.

This feature introduces five new crypto ca trustpoint commands that provide new options for certificate requests and allow users to specify fields in the configuration instead of having to go through prompts. The following commands were introduced by this feature: ip-address ca-trustpoint , password ca-trustpoint , serial-number , subject-name , usage. The following commands were introduced by this feature: authentication command , authentication terminal , authentication url , crypto ca profile enrollment , enrollment command , enrollment profile , enrollment terminal , enrollment url , parameter.

This feature allows customers to issue certificate requests and receive issued certificates in PEM-formatted files. The following commands were modified by this feature: enrollment , enrollment terminal. This feature allows the certificate renewal request to be made before the certificate expires and retains the old key and certificate until the new certificate is available. The following commands were introduced or modified by this feature: auto-enroll , regenerate.

The following commands were introduced or modified by this feature: crypto ca import , enrollment , enrollment terminal. This feature allows the HTTPS server to generate and save a self-signed certificate in the router startup configuration. The following commands were introduced or modified by this feature: enrollment selfsigned , show crypto pki certificates , show crypto pki trustpoints.

This enhancement adds the status keyword to the show crypto pki trustpoints command, which allows you to display the current status of the trustpoint. This is a minor enhancement. Minor enhancements are not typically listed in Feature Navigator. The following commands were introduced by this feature: enrollment credential , grant auto trustpoint. Suite-B adds the following support for certificate enrollment for a PKI:.

PKI support for validation of for X. This feature introduces the crypto pki trustpoint command, which adds support for trustpoint CAs. Skip to content Skip to search Skip to footer. Book Contents Book Contents.

Find Matches in This Book. PDF - Complete Book 3. Updated: November 23, Configuring Certificate Enrollment for a PKI This module describes the different methods available for certificate enrollment and how to set up each method for a participating PKI peer. Note Security threats, as well as the cryptographic technologies to help protect against them, are constantly changing.

An authenticated CA. Scenarios in which at least a two-tier CA is recommended are as follows: Large and very active networks in which a large number of certificates are revoked and reissued. Authentication of the CA The certificate of the CA must be authenticated before the device will be issued its own certificate and before certificate enrollment can occur. Note PKI does not support certificate with lifetime validity greater than the year Note If the authentication request is made using the command-line interface CLI , the request is an interactive request.

Note To take advantage of automated certificate and key rollover functionality, you must be running a CA that supports rollover and SCEP must be used as your client enrollment method. Note To take advantage of autoenrollment and autoreenrollment, do not use either TFTP or manual cut-and-paste enrollment as your enrollment method. Automatic Certificate Enrollment Automatic certificate enrollment allows the CA client to automatically request a certificate from its CA sever.

Note When automatic enrollment is configured, clients automatically request client certificates. Tip If CA autoenrollment is not enabled, you may manually initiate rollover on an existing client with the crypto pki enroll command if the expiration time of the current client certificate is equal to or greater than the expiration time of the corresponding CA certificate.

Note A key pair is also sent if configured by the auto-enroll re-generate command and keyword. Certificate Enrollment Profiles Certificate enrollment profiles allow users to specify certificate authentication, enrollment, and reenrollment parameters when prompted.

Note A single enrollment profile can have up to three separate sections for each task--certificate authentication, enrollment, and reenrollment. Before you begin Before configuring automatic certificate enrollment requests, you should ensure that all necessary enrollment information is configured. Prerequisites for Enabling Automated Client Certificate and Key Rollover CA client support for certificate rollover is automatically enabled when using autoenrollment.

For automatic CA certificate rollover to run successfully, the following prerequisites are applicable: Your network devices must support shadow PKI. RSA Key Pair Restriction for Autoenrollment Trustpoints configured to generate a new key pair using the regenerate command or the regenerate keyword of the auto-enroll command must not share key pairs with other trustpoints.

Restrictions for Automated Client Certificate and Key Rollover In order for clients to run automatic CA certificate rollover successfully, the following restrictions are applicable: SCEP must be used to support rollover. Step 2 configure terminal Example: Router configure terminal Enters global configuration mode. Step 3 crypto pki trustpoint name Example: Router config crypto pki trustpoint mytp Declares the trustpoint and a given name and enters ca-trustpoint configuration mode.

Note An enrollment method other than TFTP or manual cut-and-paste must be configured to support autoenrollment. Step 6 subject-name [ x. Note If this command is enabled, you will not be prompted for an IP address during enrollment for this trustpoint. Step 9 serial-number [none] Example: Router ca-trustpoint serial-number Optional Specifies the router serial number in the certificate request, unless the none keyword is issued.

Step 10 auto-enroll [ percent ] [ regenerate ] Example: Router ca-trustpoint auto-enroll regenerate Optional Enables autoenrollment, allowing the client to automatically request a rollover certificate from the CA. Note If the key pair being rolled over is exportable, the new key pair will also be exportable.

Step 11 usage method1 [ method2 [ method3 ]] Example: Router ca-trustpoint usage ssl-client Optional Specifies the intended use for the certificate. Step 12 password string Example: Router ca-trustpoint password string1 Optional Specifies the revocation password for the certificate. Note When SCEP is used, this password can be used to authorize the certificate request--often via a one-time password or similar mechanism.

Step 13 rsakeypair key-label key-size encryption-key-size ]] Example: Router ca-trustpoint rsakeypair key-label Optional Specifies which key pair to associate with the certificate. Note If the fingerprint is not provided and authentication of the CA certificate is interactive, the fingerprint will be displayed for verification. Step 15 on devicename : Example: Router ca-trustpoint on usbtoken0: Optional Specifies that RSA keys will be created on the specified device upon autoenrollment initial key generation.

Step 16 exit Example: Router ca-trustpoint exit Exits ca-trustpoint configuration mode and returns to global configuration mode. Step 17 crypto pki authenticate name Example: Router config crypto pki authenticate mytp Retrieves the CA certificate and authenticates it.

Note This command is optional if the CA certificate is already loaded into the configuration. Step 18 exit Example: Router config exit Exits global configuration mode. Step 19 copy system:running-config nvram:startup-config Example: Router copy system:running-config nvram:startup-config Optional Copies the running configuration to the NVRAM startup configuration. Step 20 show crypto pki certificates Example: Router show crypto pki certificates Optional Displays information about your certificates, including any rollover certificates.

Key Regeneration Restriction Do not regenerate the keys manually using the crypto key generate command; key regeneration will occur when the crypto pki enroll command is issued if the regenerate keyword is specified. Configuring Cut-and-Paste Certificate Enrollment Perform this task to configure cut-and-paste certificate enrollment. Step 4 enrollment terminal pem Example: Router ca-trustpoint enrollment terminal Specifies the manual cut-and-paste certificate enrollment method.

Note If the fingerprint is not provided, it will be displayed for verification. Step 6 exit Example: Router ca-trustpoint exit Exits ca-trustpoint configuration mode and returns to global configuration mode. Step 7 crypto pki authenticate name Example: Router config crypto pki authenticate mytp Retrieves the CA certificate and authenticates it. Step 8 crypto pki enroll name Example: Router config crypto pki enroll mytp Generates certificate request and displays the request for copying and pasting into the certificate server.

Step 9 crypto pki import name certificate Example: Router config crypto pki import mytp certificate Imports a certificate manually at the console terminal pasting. Note You must enter this command twice if usage keys, a signature key, and an encryption key are used. Note Some CAs ignore the usage key information in the certificate request and issue general purpose usage certificates. Step 10 exit Example: Router config exit Exits global configuration mode. Step 11 show crypto pki certificates Example: Router show crypto pki certificates Optional Displays information about your certificates, the certificates of the CA, and RA certificates.

Step 7 crypto pki authenticate name Example: Router config crypto pki authenticate mytp Retrieves the CA certificate and authenticates it from the specified TFTP server. Step 8 crypto pki enroll name Example: Router config crypto pki enroll mytp Generates certificate request and writes the request out to the TFTP server. Step 9 crypto pki import name certificate Example: Router config crypto pki import mytp certificate Imports a certificate via TFTP at the console terminal, which retrieves the granted certificate.

SUMMARY STEPS enable clock set hh : mm : ss date month year configure terminal clock timezone zone hours-offset [ minutes-offset ] ip http server hostname name ip domain-name name crypto key generate rsa general-keys modulus modulus-size crypto pki trustpoint name enrollment terminal crypto ca authenticate name Copy the following block of text containing the base 64 encoded CA certificate and paste it at the prompt. Step 2 clock set hh : mm : ss date month year Example: Router clock set 22 Dec Sets the clock on the router.

Step 3 configure terminal Example: Router configure terminal Enters global configuration mode. Step 4 clock timezone zone hours-offset [ minutes-offset ] Example: Router config clock timezone PST Sets the time zone. Note The minutes-offset argument of the clock timezone command is available for those cases where a local time zone is a percentage of an hour different from UTC or Greenwich Mean Time GMT.

Step 6 hostname name Example: Router config hostname hostname1 Configures the hostname of the router. Step 7 ip domain-name name Example: Router config ip domain-name example. Step 8 crypto key generate rsa general-keys modulus modulus-size Example: Router config crypto key generate rsa general-keys modulus general Generates the crypto keys. Note The name for the general keys that are generated are based on the domain name that is configured in Step 7.

Step 10 enrollment terminal Example: Router ca-trustpoint enrollment terminal Specifies the manual cut-and-paste certificate enrollment method. Step 11 crypto ca authenticate name Example: Router ca-trustpoint crypto ca authenticate mytp Takes the name of the CA as the argument and authenticates it. The following command output displays: Enter the base 64 encoded CA certificate.

End with a blank line or the word "quit" on a line by itself. Step 12 Copy the following block of text containing the base 64 encoded CA certificate and paste it at the prompt. Step 15 revocation-check none Example: hostname1 ca-trustpoint revocation-check none Example: Specifies that certificate checking is ignored. Step 16 end Example: hostname1 ca-trustpoint end Exits ca-trustpoint configuration mode and returns to privileged EXEC mode.

Step 17 trm register Example: hostname1 trm register Manually starts the Trend Micro Server registration process. Restrictions You can configure only one trustpoint for a persistent self-signed certificate. The maximum lifetime of a self-signed certificate is GMT Jan 1, Note Do not change the IP domain name or the hostname of the router after creating the self-signed certificate. Configuring a Trustpoint and Specifying Self-Signed Certificate Parameters Note Security threats, as well as the cryptographic technologies to help protect against them, are constantly changing.

Step 3 crypto pki trustpoint name Example: Router config crypto pki trustpoint local Declares the CA that your router should use and enters ca-trustpoint configuration mode. Step 4 enrollment selfsigned Example: Router ca-trustpoint enrollment selfsigned Specifies self-signed enrollment. Step 5 subject-name [ x. Step 6 rsakeypair key-label [key-size [encryption-key-size]] Example: Router ca-trustpoint rsakeypair examplekey Optional Specifies which key pair to associate with the certificate.

Step 7 crypto pki enroll name Example: Router config crypto pki enroll local Tells the router to generate the persistent self-signed certificate. Step 8 end Example: Router ca-trustpoint end Optional Exits ca-trustpoint configuration mode. Enter this command a second time to exit global configuration mode. Step 9 show crypto pki certificates [ trustpoint-name [ verbose ]] Example: Router show crypto pki certificates local verbose Displays information about your certificate, the certification authority certificate, and any registration authority certificates.

Step 10 show crypto pki trustpoints [ status label [ status ]] Example: Router show crypto pki trustpoints status Displays the trustpoints that are configured in the router. Before you begin To specify parameters, you must create a trustpoint and configure it. Note A key pair modulus and a self-signed certificate are automatically generated. Step 4 end Example: Router config end Exits global configuration mode. Step 5 copy system:running-config nvram: startup-config Example: Router copy system:running-config nvram: startup-config Saves the self-signed certificate and the HTTPS server in enabled mode.

Configuring a Certificate Enrollment Profile for Enrollment or Reenrollment Perform this task to configure a certificate enrollment profile for enrollment or reenrollment. Before you begin Perform the following tasks at the client router before configuring a certificate enrollment profile for the client router that is already enrolled with a third-party vendor CA so that the router can reenroll with a Cisco IOS certificate server: Defined a trustpoint that points to the third-party vendor CA.

Authenticated and enrolled the client router with the third-party vendor CA. If an enrollment profile is specified, an enrollment URL may not be specified in the trustpoint configuration. Although both commands are supported, only one command can be used at a time in a trustpoint. Because there is no standard for the HTTP commands used by various CAs, the user is required to enter the command that is appropriate to the CA that is being used. Step 3 crypto pki trustpoint name Example: Router config crypto pki trustpoint Entrust Declares the trustpoint and a given name and enters ca-trustpoint configuration mode.

Step 4 enrollment profile label Example: Router ca-trustpoint enrollment profile E Specifies that an enrollment profile is to be used for certificate authentication and enrollment. Step 5 exit Example: Router ca-trustpoint exit Exits ca-trustpoint configuration mode. Step 6 crypto pki profile enrollment label Example: Router config crypto pki profile enrollment E Defines an enrollment profile and enters ca-profile-enroll configuration mode.

Specifies manual cut-and-paste certificate authentication. Specifies manual cut-and-paste certificate enrollment. Note This command cannot be issued if manual certificate enrollment is being used. This command can be used multiple times to specify multiple values. Step 13 exit Example: Router ca-profile-enroll exit Optional Exits ca-profile-enroll configuration mode.

Step 14 show crypto pki certificates Example: Router show crypto pki certificates Optional Displays information about your certificates, the certificates of the CA, and RA certificates. Note Enable revocation checking as per your environment before performing the following tasks. Specifies that certificate requests will be granted automatically.

Specifies that keys will be stored on usbtoken Redisplay enrollment request? Trustpoint CA certificate accepted. Suite-B Integrity algorithm type transform configuration. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www. An account on Cisco. Table 1. Feature Information for PKI Certificate Enrollment Feature Name Releases Feature Information Certificate Autoenrollment This feature introduces certificate autoenrollment, which allows the router to automatically request a certificate from the CA that is using the parameters in the configuration.

Certificate Enrollment Enhancements This feature introduces five new crypto ca trustpoint commands that provide new options for certificate requests and allow users to specify fields in the configuration instead of having to go through prompts. Key Rollover for Certificate Renewal This feature allows the certificate renewal request to be made before the certificate expires and retains the old key and certificate until the new certificate is available.

PKI Status This enhancement adds the status keyword to the show crypto pki trustpoints command, which allows you to display the current status of the trustpoint. Note This is a minor enhancement. Was this Document Helpful? Yes No Feedback. Step 1. Enables privileged EXEC mode.

Step 2. Enters global configuration mode. Step 3. Step 4. Step 5. Step 6. Step 7. Step 8. Step 9. Step It is recommended that a new key pair be generated for security reasons. Optional Specifies the intended use for the certificate.

Optional Specifies the revocation password for the certificate. Optional Specifies which key pair to associate with the certificate. If this command is not enabled, the FQDN key pair is used. Exits global configuration mode.

Sets the clock on the router. Sets the time zone. Enables the HTTP server. Configures the hostname of the router. Defines the domain name for the router. Can i delete them? Thanks in advance for your time! I have this problem too. All forum topics Previous Topic Next Topic. Post Reply. Latest Contents. Cisco DNA Center 2.

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