openssl_verify
string$data,
string$signature,
OpenSSLAsymmetricKey|OpenSSLCertificate|array|string$public_key,
[string|int$algorithm = OPENSSL_ALGO_SHA1]
): int|false
openssl_verify verifies that the signature is correct for the specified data using the public key associated with public_key. This must be the public key corresponding to the private key used for signing.
Parameters
- data
-
The string of data used to generate the signature previously
- signature
-
A raw binary string, generated by openssl_sign or similar means
- public_key
-
OpenSSLAsymmetricKey - a key, returned by openssl_get_publickey
string - a PEM formatted key, example, "-----BEGIN PUBLIC KEY----- MIIBCgK..."
- algorithm
-
int - one of these Signature Algorithms.
string - a valid string returned by openssl_get_md_methods example, "sha1WithRSAEncryption" or "sha512".
Return Values
Returns 1 if the signature is correct, 0 if it is incorrect, and -1 or false on error.
Changelog
| Version | Description |
| 8.0.0 | public_key accepts an OpenSSLAsymmetricKey or OpenSSLCertificate instance now; previously, a resource of type OpenSSL key or OpenSSL X.509 was accepted. |