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Add NamedGroup IANA values and helper functions

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2021-08-27 22:06:20 +08:00
parent 26f4d15d13
commit e226cef124
2 changed files with 49 additions and 0 deletions
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31
include/mbedtls/ssl.h
View file

@ -169,6 +169,37 @@
/** Invalid value in SSL config */ /** Invalid value in SSL config */
#define MBEDTLS_ERR_SSL_BAD_CONFIG -0x5E80 #define MBEDTLS_ERR_SSL_BAD_CONFIG -0x5E80
/*
* TLS 1.3 NamedGroup values
*
* From RF 8446
* enum {
* // Elliptic Curve Groups (ECDHE)
* secp256r1(0x0017), secp384r1(0x0018), secp521r1(0x0019),
* x25519(0x001D), x448(0x001E),
* // Finite Field Groups (DHE)
* ffdhe2048(0x0100), ffdhe3072(0x0101), ffdhe4096(0x0102),
* ffdhe6144(0x0103), ffdhe8192(0x0104),
* // Reserved Code Points
* ffdhe_private_use(0x01FC..0x01FF),
* ecdhe_private_use(0xFE00..0xFEFF),
* (0xFFFF)
* } NamedGroup;
*
*/
/* Elliptic Curve Groups (ECDHE) */
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP256R1 0x0017
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP384R1 0x0018
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP521R1 0x0019
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_X25519 0x001D
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_X448 0x001E
/* Finite Field Groups (DHE) */
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE2048 0x0100
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE3072 0x0101
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE4096 0x0102
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE6144 0x0103
#define MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE8192 0x0104
/* /*
* TLS 1.3 Key Exchange Modes * TLS 1.3 Key Exchange Modes
* *

18
library/ssl_misc.h
View file

@ -1439,6 +1439,24 @@ static inline int mbedtls_ssl_conf_is_hybrid_tls12_tls13( const mbedtls_ssl_conf
#if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL) #if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL)
/*
* Helper functions for NamedGroup.
*/
static inline int mbedtls_ssl_named_group_is_ecdhe( uint16_t named_group )
{
return( named_group == MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP256R1 ||
named_group == MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP384R1 ||
named_group == MBEDTLS_SSL_TLS13_NAMED_GROUP_SECP521R1 ||
named_group == MBEDTLS_SSL_TLS13_NAMED_GROUP_X25519 ||
named_group == MBEDTLS_SSL_TLS13_NAMED_GROUP_X448 );
}
static inline int mbedtls_ssl_named_group_is_dhe( uint16_t named_group )
{
return( named_group >= MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE2048 &&
named_group <= MBEDTLS_SSL_TLS13_NAMED_GROUP_FFDHE8192 );
}
static inline void mbedtls_ssl_handshake_set_state( mbedtls_ssl_context *ssl, static inline void mbedtls_ssl_handshake_set_state( mbedtls_ssl_context *ssl,
mbedtls_ssl_states state ) mbedtls_ssl_states state )
{ {