transcript.h File Reference

RFC 8446 4.4.1: cumulative Transcript-Hash over handshake messages. More...

#include "crypto/symmetric/hash/hash/sha256.h"
#include "crypto/symmetric/hash/hash/sha384.h"

Go to the source code of this file.

Data Structures
struct	transcript
	Cumulative Transcript-Hash state. More...

Functions
void	transcript_init (transcript *t)
	Start an empty transcript.
void	transcript_add (transcript *t, const u8 *msg, usz len)
	Fold a handshake message into the transcript.
void	transcript_hash (const transcript *t, u8 out[SHA256_DIGEST])
	Running hash at the current point; t is left unchanged.
void	transcript_hash_suite (const transcript *t, u16 suite, u8 *out)
	Running hash under suite's hash (SHA-384 for TLS_AES_256_GCM_SHA384, else SHA-256); t is left unchanged.

Detailed Description

RFC 8446 4.4.1: cumulative Transcript-Hash over handshake messages.

Function Documentation

transcript_add()

void transcript_add	(	transcript *	t,
		const u8 *	msg,
		usz	len )

Fold a handshake message into the transcript.

Parameters

t	transcript state
msg	the handshake message bytes
len	length of msg in bytes

transcript_hash()

void transcript_hash	(	const transcript *	t,
		u8	out[SHA256_DIGEST] )

Running hash at the current point; t is left unchanged.

Parameters

t	transcript state
out	receives the transcript hash

transcript_hash_suite()

void transcript_hash_suite	(	const transcript *	t,
		u16	suite,
		u8 *	out )

Running hash under suite's hash (SHA-384 for TLS_AES_256_GCM_SHA384, else SHA-256); t is left unchanged.

Parameters

t	transcript state
suite	RFC 8446 B.4 cipher suite
out	receives Hash.length bytes

transcript_init()

void transcript_init

(

transcript *

t

)

Start an empty transcript.

Parameters

t	transcript state to initialize