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openssl_pkey_get_details

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

openssl_pkey_get_detailsReturns an array with the key details

Опис

openssl_pkey_get_details(OpenSSLAsymmetricKey $key): array|false

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

Параметри

key

Resource holding the key.

Значення, що повертаються

Returns an array with the key details on success or false on 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 Опис
    "n" modulus
    "e" public exponent
    "d" private exponent
    "p" prime 1
    "q" prime 2
    "dmp1" exponent1, d mod (p-1)
    "dmq1" exponent2, d mod (q-1)
    "iqmp" coefficient, (inverse of q) mod p
  • OPENSSL_KEYTYPE_DSA, an additional array key named "dsa", containing the key data is returned.
    Key Опис
    "p" prime number (public)
    "q" 160-bit subprime, q | p-1 (public)
    "g" generator of subgroup (public)
    "priv_key" private key x
    "pub_key" public key y = g^x
  • OPENSSL_KEYTYPE_DH, an additional array key named "dh", containing the key data is returned.
    Key Опис
    "p" prime number (shared)
    "g" generator of Z_p (shared)
    "priv_key" private DH value x
    "pub_key" public DH value g^x
  • OPENSSL_KEYTYPE_EC, an additional array key named "ec", containing the key data is returned.
    Key Опис
    "curve_name" name of curve, see openssl_get_curve_names()
    "curve_oid" ASN1 Object identifier (OID) for EC curve.
    "x" x coordinate (public)
    "y" y coordinate (public)
    "d" private key

Журнал змін

Версія Опис
8.0.0 key accepts an OpenSSLAsymmetricKey now; previously, a resource of type OpenSSL key was accepted.
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