Home Contents | # hash:update | Cipher/Hash | Core4 Lua Commands

## SYNOPSIS

success = hash:update(data)

## DESCRIPTION

The Core4 system includes a copy of mbed TLS.

This function feeds the string data to a one-way hash.

The object hash must have been properly initialized with a supported algorithm.

The result can be retrieved by calling hash:finish().

## RETURN VALUE

On success, returns true.

On failure, returns nil, a string describing the error and the mbedtls error code number.

## SEE ALSO

cipher.hash(), hash:init(), hash:finish()