Namespace: \ParagonIE\Halite
public statichash(string $input,int $length = 32):string
User-friendly wrapper for sodium_crypto_generichash.
Returns a hexadecimal-encoded hash of an input, for any length.
public statichash(string $input,string $key,int $length = 32):string
User-friendly wrapper for sodium_crypto_generichash.
Returns a hexadecimal-encoded keyed hash of an input, for any length.
public staticrawhash(string $input,int $length = 32):string
User-friendly wrapper for sodium_crypto_generichash.
Returns a raw binary hash of an input, for any length.
public statichash(string $input,string $key,int $length = 32):string
User-friendly wrapper for sodium_crypto_generichash.
Returns a raw binary keyed hash of an input, for any length.
public statichkdfBlake2b(string $ikm,int $length,string $info = '',string $salt = null):int
This is a variant of HKDF-HMAC (RFC 5869). Instead of HMAC, it uses a keyed hash function (BLAKE2b) for key splitting.
public staticsafeStrcpy(string $str):string
Returns a copy of a string without triggering PHP's optimizations. The
string returned by this method can safely be used with sodium_memzero()
without corrupting other copies of the same string.
Splits a single key into two distinct keys (one for encryption, one for authentication).
Since Halite v5, the HKDF salt parameter is not used. Instead, this randomness is appended to the HKDF info parameter, in order to meet the standard security definition for HKDF.
Additionally, this allows us to reuse the PRK (the value affected by the HKDF salt) value for both derived keys, which results in a nice performance gain.
public staticxorStrings(string $left,string $right):string
Calculate A xor B, given two binary strings of the same length.
Uses pack() and unpack() to avoid cache-timing leaks caused by chr().