Php/docs/openssl.certparams
From Get docs
Key/Certificate parameters
Quite a few of the openssl functions require a key or a certificate parameter. Following methods may be used to get them:
- Certificates
- An X.509 resource returned from openssl_x509_read()
- A string having the format
file://path/to/cert.pem
; the named file must contain a PEM encoded certificate - A string containing the content of a certificate, PEM encoded, may start with -----BEGIN CERTIFICATE-----
- Certificate Signing Requests (CSRs)
- A CSR resource returned from openssl_csr_new()
- A string having the format
file://path/to/csr.pem
; the named file must contain a PEM encoded CSR - A string containing the content of a CSR, PEM encoded, may start with -----BEGIN CERTIFICATE REQUEST-----
- Public/Private Keys
- A key resource returned from openssl_get_publickey() or openssl_get_privatekey()
- For public keys only: an X.509 resource
- A string having the format
file://path/to/file.pem
- the named file must contain a PEM encoded certificate/private key (it may contain both) - A string containing the content of a certificate/key, PEM encoded, may start with -----BEGIN PUBLIC KEY-----
- For private keys, you may also use the syntax
array($key, $passphrase)
where$key
represents a key specified using the file:// or textual content notation above, and$passphrase
represents a string containing the passphrase for that private key