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tls13: Share write ecdh_key_exchange function

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2022-03-30 22:43:29 +08:00
parent 3bf2c6449d
commit 89e103c54c
4 changed files with 83 additions and 68 deletions
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21
library/ssl_tls13_server.c
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@ -822,20 +822,27 @@ static int ssl_tls13_key_share_encapsulate( mbedtls_ssl_context *ssl,
size_t *out_len )
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
((void) ssl);
((void) named_group);
((void) buf);
((void) end);
((void) out_len);
#if defined(MBEDTLS_ECDH_C)
if( mbedtls_ssl_tls13_named_group_is_ecdhe( named_group ) )
{
ret = mbedtls_ecdh_tls13_make_params( &ssl->handshake->ecdh_ctx,
out_len, buf, end - buf, ssl->conf->f_rng, ssl->conf->p_rng );
ret = mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange(
ssl, named_group, buf, end, out_len );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_tls13_params", ret );
MBEDTLS_SSL_DEBUG_RET(
1, "mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange",
ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx, MBEDTLS_DEBUG_ECDH_Q );
}
else if( 0 /* Other kinds of KEMs */ )
else
#endif /* MBEDTLS_ECDH_C */
if( 0 /* Other kinds of KEMs */ )
{
}
else