SSL Guide vA1(7), Cisco ACE 4700 Series Application Control Engine Appliance
Displaying SSL Certificate and Key Pair Information
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Displaying SSL Certificate and Key Pair Information

Table Of Contents

Displaying SSL Certificate and Key Pair Information

Displaying CSR Parameter Set Configurations

Displaying the List of Certificate and Key Pair Files

Displaying Certificate Information

Displaying RSA Key Pair Information

Displaying Certificate Chain Group Information


Displaying SSL Certificate and Key Pair Information


This chapter describes the show commands available for displaying SSL-related information, such as certificate signing request (CSR) parameter values, the certificate and key pair files loaded on the ACE, and so on. The show commands display information associated with the context from which you execute the command. Each command described in this chapter also includes an explanation of the command output.

While the show commands are Exec mode commands, you can execute a show command from any configuration mode by using the do command. The following examples show how to execute the show running-config command from either Exec mode or configuration mode.

From Exec mode, enter:

host1/Admin# show running-config

From configuration mode, enter:

host1/Admin(config)# do show running-config

This chapter contains the following major sections:

Displaying CSR Parameter Set Configurations

Displaying the List of Certificate and Key Pair Files

Displaying Certificate Information

Displaying RSA Key Pair Information

Displaying Certificate Chain Group Information

Displaying CSR Parameter Set Configurations

You can display the CSR parameter set summary and detailed reports by using the show crypto csr-params command in Exec mode.

The syntax of this command is as follows:

show crypto csr-params [params_set]

The optional params_set argument is a specific CSR parameter set. Enter an unquoted alphanumeric string with a maximum of 64 characters. The ACE displays the detailed report for the specified CSR parameter set. The detailed report contains the distinguished name attributes of the CSR parameter set.

To display the summary report that lists all the CSR parameter sets for the current context, enter the command without specifying a CSR parameter set.

For example, to display the CSR parameter set summary report, enter:

host1/Admin# show crypto csr-params

The following example shows how to display the detailed report for the MYCSRCONFIG CSR parameter set:

host1/Admin# show crypto csr-params MTCSRCONFIG

Table 6-1 describes the fields in the show crypto csr-params command output.

Table 6-1 Field Descriptions for the show crypto csr-params config_name Command 

Field
Description

Country-name

Country where the certificate owner resides.

State

State where the certificate owner resides.

Locality

Locality where the certificate owner resides.

Org-name

Name of the organization (certificate owner or subject).

Org-unit

Name of unit within the organization.

Common-name

Common-name (domain name or individual hostname of the SSL site).

Serial number

Serial number.

Email

E-mail address.


Displaying the List of Certificate and Key Pair Files

You can display a list of all available certificate and key pair files by using the show crypto files command in Exec mode.

For example, to display the list of certificate and key pair files, enter:

host1/Admin# show crypto files

Table 6-2 describes the fields in the show crypto files command output.

Table 6-2 Field Descriptions for the show crypto files Command

Field
Description

Filename

Name of the file that contains the certificate or key pair.

Size

Size of the file.

Type

Format of the file: PEM, DER, or PKCS12.

Exportable

Indicates whether you can export the file from the ACE using the crypto export command:

Yes—You can export the file to an FTP, SFTP, or TFP server (see the "Exporting Certificate and Key Pair Files" section in Chapter 2, "Managing Certificates and Keys").

No—You cannot export the file as it is protected.

Key/Cert

Indicates whether the file contains a certificate (CERT), a key pair (KEY), or both (BOTH).


Displaying Certificate Information

You can display the certificate summary and detailed reports by using the show crypto certificate command in Exec mode.

The syntax of this command is as follows:

show crypto certificate {filename | all}

The keywords and arguments are as follows:

filenameName of a specific certificate file. Enter an unquoted alphanumeric string with a maximum of 40 characters. The ACE displays the certificate detailed report for the specified file. If the certificate file contains a chain, the ACE displays only the bottom level certificate (the signers are not displayed).

allDisplays the certificate summary report that lists all the certificate files for the current context.

For example, to display the certificate summary report, enter:

host1/Admin# show crypto certificate all

Table 6-3 describes the fields in the show crypto certificate all command output.

Table 6-3 Field Descriptions for the show crypto certificate all Command 

Field
Description

Certificate file

Name of the certificate file.

Subject

Distinguished name of the organization that owns the certificate and possesses the private key.

Issuer

Distinguished name of the Certificate Association (CA) that issued the certificate.

Not Before

Starting time period, before which the certificate is not considered valid.

Not After

Ending time period, after which the certificate is not considered valid.

CA Cert

Certificate of the CA that signed the certificate.


The following example shows how to display the detailed report for the MYCERT.PEM certificate file:

host1/Admin# show crypto certificate MYCERT.PEM

Table 6-4 describes the fields in the show crypto certificate filename command output.

Table 6-4 Field Descriptions for the show crypto certificate filename Command 

Field
Description

Certificate

Name of the certificate file.

Data

Version

Version of the X.509 standard. The certificate complies with this version of the standard.

Serial Number

Serial number associated with the certificate.

Signature Algorithm

Digital signature algorithm used for the encryption of information with a public/private key pair.

Issuer

Distinguished name of the CA that issued the certificate.

Validity

Not Before

Starting time period, before which the certificate is not considered valid.

Not After

Ending time period, after which the certificate is not considered valid.

Subject

Distinguished name of the organization that owns the certificate and possesses the private key.

Subject Public Key Info

Public Key Algorithm

Name of the key exchange algorithm used to generate the public key (for example, RSA).

RSA Public Key

Number of bits in the key to define the size of the RSA key pair used to secure web transactions.

Modulus

Actual public key on which the certificate was built.

Exponent

One of the base numbers used to generate the key.

X509v3 Extensions

Array of X509v3 extensions added to the certificate.

X509v3 Basic Constraints

Indicates whether the subject may act as a CA, with the certified public key being used to verify certificate signatures. If so, a certification path length constraint may also be specified.

Netscape Comment

Comment that may be displayed when the certificate is viewed.

X509v3 Subject Key Identifier

Public key to be certified. It enables distinct keys used by the same subject to be differentiated (for example, as key updating occurs).

X509v3 Authority Key Identifier

Public key to be used to verify the signature on this certificate or CRL. It enables distinct keys used by the same CA to be distinguished (for example, as key updating occurs).

Signature Algorithm

Name of the algorithm used for digital signatures (but not for key exchanges).

Hex Numbers

Actual signature of the certificate. The client can regenerate this signature using the specified algorithm to make sure that the certificate data has not been changed.


Displaying RSA Key Pair Information

You can display the key pair file summary and detailed reports by using the show crypto key command in Exec mode.

The syntax of this command is as follows:

show crypto key {filename | all}

The keywords and arguments are as follows:

filenameName of a specific key pair file. Enter an unquoted alphanumeric string with a maximum of 40 characters. The ACE displays the key pair detailed report for the specified file.

allDisplays the key pair summary report that lists all of the available key pair files.

For example, to display the key pair summary report, enter:

host1/Admin# show crypto all

Table 6-5 describes the fields in the show crypto key command output.

Table 6-5 Field Descriptions for the show crypto key Command 

Field
Description

Filename

Name of the key pair file that contains the RSA key pair.

Bit Size

Size of the file.

Type

Type of key exchange algorithm, such as RSA.


The following example shows how to display the detailed report for the public and private keys contained in the MYKEYS.PEM key pair file:

host1/Admin# show crypto key MYKEYS.PEM
1024-bit RSA keypair

Table 6-6 describes the fields in the show crypto key filename command output.

Table 6-6 Field Descriptions for the show crypto key filename Command 

Field
Description

Key Size

Size (in bits) of the RSA key pair.

Modulus

Hex value of the public key. The private key modulus is not shown for security purposes.


Displaying Certificate Chain Group Information

You can display the chain group file summary and detailed reports by using the show crypto chaingroup command in Exec mode.

The syntax of this command is as follows:

show crypto chaingroup {filename | all}

The keywords and arguments are as follows:

filenameName of a specific chain group file. Enter an unquoted alphanumeric string with a maximum of 64 characters. The ACE displays the chain group detailed report for the specified file. The detailed report contains a list of the certificates configured for the chain group.

allDisplays the chain group summary report that lists each of the available chain group files. The summary report also lists the certificates configured for each chain group.

For example, to display the chain group summary report, enter:

host1/Admin# show crypto chaingroup all

The following example shows how to display the detailed report of the certificates configured for the MYCERTGROUP chain group:

host1/Admin# show crypto chaingroup MYCERTGROUP

Table 6-7 describes the fields in the show crypto chaingroup command output.

Table 6-7 Field Descriptions for the show crypto chaingroup Command 

Field
Description

Certificate

Certificate filename.

Subject

Distinguished name of the organization that owns the certificate and possesses the private key.

Issuer

Distinguished name of the CA that issued the certificate.