OpenSSL Functions
PHP Manual

openssl_pkey_get_details

Returns an array with the key details

Description

array openssl_pkey_get_details ( resource $key )

This function returns the key details (bits, key, type).

Parameters

key

Resource holding the key.

Return Values

Returns an array with the key details in success or FALSE in failure. Returned array has indexes bits (number of bits), key (string representation of the public key) and type (type of the key which is one of OPENSSL_KEYTYPE_RSA, OPENSSL_KEYTYPE_DSA, OPENSSL_KEYTYPE_DH, OPENSSL_KEYTYPE_EC or -1 meaning unknown).

Depending on the key type used, additional details may be returned. Note that some elements may not always be available.

  • OPENSSL_KEYTYPE_RSA, an additional array key named "rsa", containing the key data is returned.
    Key Description
    "n"  
    "e"  
    "d"  
    "p"  
    "q"  
    "dmp1"  
    "dmq1"  
    "iqmp"  
  • OPENSSL_KEYTYPE_DSA, an additional array key named "dsa", containing the key data is returned.
    Key Description
    "p"  
    "q"  
    "g"  
    "priv_key"  
    "pub_key"  
  • OPENSSL_KEYTYPE_DH, an additional array key named "dh", containing the key data is returned.
    Key Description
    "p"  
    "g"  
    "priv_key"  
    "pub_key"