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Proof-of-concept of using an HSM to generate and store key pairs, then using those key pairs to create a CA certificate, client certificate and server certificate for TLS.

• Pkcs11 Tool Generate Key Pair Free

• Linux
• The openssl library
• softhsm, or any other PKCS#11 library.

May 29, 2019  PKCS11-Base PKCS. If an attempt is made to create an RSA private key object on a token with insufficient attributes for that particular token, then the object creation call fails and returns CKRTEMPLATEINCOMPLETE. Or else are assigned default initial values. Unlike the CKMRSAPKCSKEYPAIRGEN mechanism, this mechanism is guaranteed. The pkcs11-tool utility is used to manage the data objects on smart cards and similar PKCS #11 security tokens. Users can list and read PINs, keys and certificates stored on the token. Users can list and read PINs, keys and certificates stored on the token. The Java Keytool is a command line tool which can generate public key / private key pairs and store them in a Java KeyStore. The Keytool executable is distributed with the Java SDK (or JRE), so if you have an SDK installed you will also have the Keytool executable. The Keytool executable is called keytool.

1. Build the project

2. If using softhsm, clean all existing softhsm slots.

   where ~/softhsm is the value of directories.tokendir in /etc/softhsm2.conf

3. Set env vars for the PKCS#11 library path, and for the PKCS#11 Spy path if you want to use it.

4. Initialize three slots.

   If you already have an initialized slot in your HSM, set:

   • TOKEN to the token label of the slot
   • USER_PIN to the user PIN of the slot
   • LABEL_{1,2,3} to the values of the object labels that will be used for the three generated key pairs.

   Otherwise, initialize them here:

   • For softhsm, use softhsm2-util or pkcs11-tool. Eg:

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   • For TPM 2.0 TPMs, use tpm2_ptool or any other tool that uses TSS. Eg:

5. Generate a key pair in each of the two slots.

   Possible values for --type are listed in the output of cargo run -- generate-key-pair --help

   Each invocation of generate-key-pair will print the public key parameters of the newly generated key - modulus and exponent for RSA, curve name and point for EC.

6. Verify the key pairs.

   This should print the same key parameters that generate-key-pair invocations in the previous step did.

7. Generate certificates using the key pairs

   This uses the first key pair to generate a CA cert (self-signed), the second key pair to generate a server cert (signed by the CA cert), and the third key pair to generate a client cert (also signed by the CA cert).

8. Start a webserver using the server cert.

   The web server runs on port 8443 by default. Use --port to use a different value.

9. Verify the cert served by the web server.

   This should show the cert chain and have no errors (apart from a verification error because the CA cert is untrusted).

   This should successfully show curl completing a TLS handshake and receiving Hello, world! from the web server.

10. Use a webclient using the client cert for TLS client auth to connect to the webserver.

    This should successfully show the client completing a TLS handshake and receiving Hello, world! from the web server. The client will print the cert chain it received from the server. The server will also print the client cert chain it received from the client.

Pkcs11 Tool Generate Key Pair Free

TPM 2.0 hardware currently does not have a fully-functional PKCS#11 implementation. There is tpm2-pkcs11 but it is not yet feature-complete, and does not work on all hardware.

Here are some notes of how to use this demo with a TPM:

• Your hardware may not work with the latest version of tpm2-pkcs11, so you may need a specific older version. You may also need specific older versions of tpm2-abrmd,tpm2-tss and tpm2-tools. Consult your hardware manufacturer.

• Make sure to initialize the tpm2-pkcs11 store first:

  If using a custom store path (--path <>), make sure the path is writable by your user.

• tpm2-pkcs11 only supports RSA 2048-bit keys and ECDSA P-256 keys.

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