Test OpenSSL Engine - Futurex Documentation

This section provides instructions on testing OpenSSL Engine and some sample commands.

Test your conguration

Perform the following tasks to test the OpenSSL Engine:

Set the FXPKCS11 environment variables.
Create a key pair on the CryptoHub by using pkcs11-tool.

Set environment variables

In a terminal, run the following commands to set the required FXPKCS11 environment variables:

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export FXPKCS11_MODULE=/path/to/libfxpkcs11.so;
export FXPKCS11_CFG=/path/to/fxpkcs11.cfg;

Create a key pair

Perform the following steps to create a key pair on the CryptoHub by using pkcs11-tool:

In a terminal, run the following command to create a new key pair:

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pkcs11-tool --module $FXPKCS11_MODULE --login --keypairgen --key-type rsa:2048 --label "my_rsa2048_key" --id "123456" --usage-sign --usage-decrypt

Enter the password of the identity configured in the fxpkcs11.cfg file when prompted for the User PIN.

If the command succeeds, the keys display in the output:

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Key pair generated:
Private Key Object; RSA 
  label:      myrsa2048key
  ID:         123456
  Usage:      decrypt, sign, unwrap
  Access:     sensitive, local
Public Key Object; RSA 2048 bits
  label:      myrsa2048key
  ID:         123456
  Usage:      encrypt, verify, wrap
  Access:     local

The command created one private RSA 2048 key with asymmetric sign and verify usage and one public RSA 2048 key with verify usage. The test OpenSSL commands in the next section use these keys.

OpenSSL example commands

This section provides several OpenSSL example commands, most of which use the keys created on the CryptoHub in the previous section. You must specify the PKCS11 OpenSSL engine in the commands that use keys created in CryptoHub.

The purpose of this section is not to provide an exhaustive list of OpenSSL commands for the PKCS11 OpenSSL Engine but to give a few examples of use cases and confirm that everything is configured correctly. See the OpenSSL documentation for the full list of compatible commands.

Example: Output the public key

Perform the following step to output the public key from the CryptoHub:

In a terminal, run the following command to output the public key:

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openssl rsa -engine pkcs11 -pubout -inform engine -in "pkcs11:object=my_rsa2048_key"

If the command succeeds, it should output the public key to the screen, similar to the following example:

None

engine "pkcs11" set.
writing RSA key
-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoqFl+qYGJ9ou+tycLDCm
7RSTKxYcytiqA2yD3WGfrd72X8iAkuB2QL/IF/Kande1gSRaCTs5vnC0JZ9SP0nU
J3bY9b0GfXKR5kJsQGdQOKs29m0kyHjge7QRT6rfZuHhj8TRfqpPNzNnZU9MflMx
85XlTLE2HUV+e1vKHfkFC1gQrULDQ1ROb8HZKe13k7SIv4iMOZrswq7qgvyFFWOV
3Kn27yNsAKORMAoEPEwc5hre3rwJrP/W9I+EfFPDtMzI7wWPaQork3AE+bV3c8Dd
+Iv7fnXKPjK/n+4ctjnMfeTT/tG99ShkhkJkHRqGr4VNFv34hOQlwcJYr6NLrCA4
EQIDAQAB
-----END PUBLIC KEY-----

Example: Encrypt and decrypt data

Perform the following steps to encrypt data with the public key and decrypt it with the CryptoHub-stored private key:

In a terminal, run the following command to generate a file called clear_data containing random ASCII data:

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echo "This is a test file" > ./clear_data

Retrieve the public key from the CryptoHub.

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openssl rsa -engine pkcs11 -inform ENGINE -in "pkcs11:object=my_rsa2048_key" -pubout -outform PEM -out pubkey.pem

Encrypt the clear_data file by using the public key retrieved from CryptoHub and output the results to a file called encrypted_data.

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openssl pkeyutl -pubin -inkey pubkey.pem -in ./clear_data -encrypt -out ./encrypted_data -pkeyopt rsa_padding_mode:oaep

Decrypt the encrypted_data file by using the CryptoHub-stored private key and output the results to a file called clear_data2.

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openssl pkeyutl -engine pkcs11 -keyform engine -inkey "pkcs11:object=my_rsa2048_key" -decrypt -in ./encrypted_data -out ./clear_data2 -pkeyopt rsa_padding_mode:oaep

Confirm that the contents of the clear_data and clear_data2 files are identical.

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diff clear_data clear_data2

Example: Sign a data file

Perform the following steps to sign a data file using the CryptoHub-stored private key and verify the signature using the public key:

Sign the clear_data file by using the CryptoHub-stored private key and output the signature to a file called clear_data.sig.

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openssl pkeyutl -engine pkcs11 -keyform engine -inkey "pkcs11:object=my_rsa2048_key" -sign -in ./clear_data -out ./clear_data.sig

Verify the signature using the public key.

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openssl pkeyutl -pubin -inkey pubkey.pem -verify -in ./clear_data -sigfile ./clear_data.sig

You should see a message on the screen confirming that the signature was verified successfully.

Example: Create a CA

Run the following command to create a Self-Signed Root Certificate Authority (CA) certificate with the CryptoHub-stored private key:

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openssl req -new -x509 -engine pkcs11 -keyform engine -key "pkcs11:object=my_rsa2048_key" -out ssl-ca-cert.pem -days 365

It prompts for information about the self-signed CA certificate.

After you enter all fields, it outputs the result to a file called ssl-ca-cert.pem.

Example: Generate a CSR

Run the following command to generate a Certificate Signing Request (CSR) with the CryptoHub-stored private key:

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openssl req -new -engine pkcs11 -keyform engine -key "pkcs11:object=my_rsa2048_key" -out ssl-client-cert-req.pem -days 365

It prompts for information about the certificate.

After you enter all fields, the CSR outputs to a file called ssl-client-cert-req.pem.

Example: Sign a CSR

Run the following command to sign a CSR by using the CryptoHub-stored private key:

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openssl x509 -req -engine pkcs11 -in ssl-client-cert-req.pem -CA ssl-ca-cert.pem -CAkeyform engine -CAkey "pkcs11:object=my_rsa2048_key" -CAcreateserial -out signed-client-cert.pem -days 365

The signed certificate outputs to a file called signed-client-cert.pem.

​Test your conguration

​Set environment variables

​Create a key pair

​OpenSSL example commands

​Example: Output the public key

​Example: Encrypt and decrypt data

​Example: Sign a data file

​Example: Create a CA

​Example: Generate a CSR

​Example: Sign a CSR

Test your conguration

Set environment variables

Create a key pair

OpenSSL example commands

Example: Output the public key

Example: Encrypt and decrypt data

Example: Sign a data file

Example: Create a CA

Example: Generate a CSR

Example: Sign a CSR