is a gnutls_session_t type.
length of the label variable.
const char * label
label used in PRF computation, typically a short string.
length of the seed variable.
const char * seed
optional extra data to seed the PRF with.
size of pre-allocated output buffer to hold the output.
char * out pre-allocated buffer to hold the generated data.
Apply the TLS Pseudo-Random-Function (PRF) on the master secret and
the provided data.
The label variable usually contains a string denoting the purpose
for the generated data. The seed usually contains data such as the
client and server random, perhaps together with some additional data
that is added to guarantee uniqueness of the output for a particular
Because the output is not guaranteed to be unique for a particular
session unless seed includes the client random and server random
fields (the PRF would output the same data on another connection
resumed from the first one), it is not recommended to use this
function directly. The gnutls_prf() function seeds the PRF with the
client and server random fields directly, and is recommended if you
want to generate pseudo random data unique for each session.
This page is part of the GnuTLS (GnuTLS Transport Layer Security
Library) project. Information about the project can be found at
⟨http://www.gnutls.org/⟩. If you have a bug report for this manual
page, send it to firstname.lastname@example.org.. This page was obtained from the
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⟨http://www.gnutls.org/download.html⟩ on 2017-03-13. If you discover
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COLOPHON (which is not part of the original manual page), send a mail
gnutls 3.5.9 gnutls_prf_raw(3)