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Merged RSA-PSK key-exchange and ciphersuites

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This commit is contained in:
Paul Bakker 2013-10-15 12:46:17 +02:00
parent 376e8153a0 eebb5ad6cc
commit f34673e37b
11 changed files with 284 additions and 227 deletions
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1
ChangeLog
View file

@ -4,6 +4,7 @@ PolarSSL ChangeLog (Sorted per branch, date)
Features
* Support for Brainpool curves and TLS ciphersuites (RFC 7027)
* Support for ECDHE-PSK key-exchange and ciphersuites
* Support for RSA-PSK key-exchange and ciphersuites
Changes
* RSA blinding locks for a smaller amount of time

4
include/polarssl/config.h
View file

@ -321,7 +321,7 @@
* \def POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED
*
* Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
* (NOT YET IMPLEMENTED)
*
* Requires: POLARSSL_RSA_C, POLARSSL_PKCS1_V15,
* POLARSSL_X509_CRT_PARSE_C
*
@ -336,7 +336,7 @@
* TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
* TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
*/
//#define POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED
#define POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED
/**
* \def POLARSSL_KEY_EXCHANGE_RSA_ENABLED

28
include/polarssl/ssl.h
View file

@ -75,6 +75,14 @@
#include <time.h>
#endif
/* For convenience below and in programs */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#define POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED
#endif
#if defined(_MSC_VER) && !defined(inline)
#define inline _inline
#else
@ -614,9 +622,7 @@ struct _ssl_context
void *p_vrfy; /*!< context for verification */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
int (*f_psk)(void *, ssl_context *, const unsigned char *, size_t);
void *p_psk; /*!< context for PSK retrieval */
#endif
@ -717,9 +723,7 @@ struct _ssl_context
mpi dhm_G; /*!< generator for DHM */
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
/*
* PSK values
*/
@ -1061,9 +1065,7 @@ int ssl_set_own_cert_alt( ssl_context *ssl, x509_crt *own_cert,
rsa_key_len_func rsa_key_len );
#endif /* POLARSSL_X509_CRT_PARSE_C */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
/**
* \brief Set the Pre Shared Key (PSK) and the identity name connected
* to it.
@ -1103,9 +1105,7 @@ void ssl_set_psk_cb( ssl_context *ssl,
int (*f_psk)(void *, ssl_context *, const unsigned char *,
size_t),
void *p_psk );
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_DHM_C)
/**
@ -1531,9 +1531,7 @@ int ssl_write_finished( ssl_context *ssl );
void ssl_optimize_checksum( ssl_context *ssl, const ssl_ciphersuite_t *ciphersuite_info );
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
int ssl_psk_derive_premaster( ssl_context *ssl, key_exchange_type_t key_ex );
#endif

5
library/debug.c
View file

@ -251,9 +251,12 @@ static void debug_print_pk( const ssl_context *ssl, int level,
if( items[i].type == POLARSSL_PK_DEBUG_MPI )
debug_print_mpi( ssl, level, file, line, name, items[i].value );
else if( items[i].type == POLARSSL_PK_DEBUG_ECP )
else
#if defined(POLARSSL_ECP_C)
if( items[i].type == POLARSSL_PK_DEBUG_ECP )
debug_print_ecp( ssl, level, file, line, name, items[i].value );
else
#endif
debug_print_msg( ssl, level, file, line, "should not happen" );
}
}

16
library/ssl_ciphersuites.c
View file

@ -1046,6 +1046,22 @@ static const ssl_ciphersuite_t ciphersuite_definitions[] =
SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_3,
POLARSSL_CIPHERSUITE_WEAK },
#endif /* POLARSSL_SHA1_C */
#if defined(POLARSSL_SHA256_C)
{ TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256",
POLARSSL_CIPHER_NULL, POLARSSL_MD_SHA256, POLARSSL_KEY_EXCHANGE_RSA_PSK,
SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_3,
SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_3,
POLARSSL_CIPHERSUITE_WEAK },
#endif /* POLARSSL_SHA256_C */
#if defined(POLARSSL_SHA512_C)
{ TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384",
POLARSSL_CIPHER_NULL, POLARSSL_MD_SHA384, POLARSSL_KEY_EXCHANGE_RSA_PSK,
SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_3,
SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_3,
POLARSSL_CIPHERSUITE_WEAK },
#endif /* POLARSSL_SHA512_C */
#endif /* POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED */
#endif /* POLARSSL_CIPHER_NULL_CIPHER */

251
library/ssl_cli.c
View file

@ -1147,9 +1147,7 @@ static int ssl_parse_server_ecdh_params( ssl_context *ssl,
POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
static int ssl_parse_server_psk_hint( ssl_context *ssl,
unsigned char **p,
unsigned char *end )
@ -1163,7 +1161,7 @@ static int ssl_parse_server_psk_hint( ssl_context *ssl,
*
* opaque psk_identity_hint<0..2^16-1>;
*/
len = (*p)[1] << 8 | (*p)[0];
len = (*p)[0] << 8 | (*p)[1];
*p += 2;
if( (*p) + len > end )
@ -1179,9 +1177,73 @@ static int ssl_parse_server_psk_hint( ssl_context *ssl,
return( ret );
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
/*
* Generate a pre-master secret and encrypt it with the server's RSA key
*/
static int ssl_write_encrypted_pms( ssl_context *ssl,
size_t offset, size_t *olen,
size_t pms_offset )
{
int ret;
size_t len_bytes = ssl->minor_ver == SSL_MINOR_VERSION_0 ? 0 : 2;
unsigned char *p = ssl->handshake->premaster + pms_offset;
/*
* Generate (part of) the pre-master as
* struct {
* ProtocolVersion client_version;
* opaque random[46];
* } PreMasterSecret;
*/
p[0] = (unsigned char) ssl->max_major_ver;
p[1] = (unsigned char) ssl->max_minor_ver;
if( ( ret = ssl->f_rng( ssl->p_rng, p + 2, 46 ) ) != 0 )
{
SSL_DEBUG_RET( 1, "f_rng", ret );
return( ret );
}
ssl->handshake->pmslen = 48;
/*
* Now write it out, encrypted
*/
if( ! pk_can_do( &ssl->session_negotiate->peer_cert->pk,
POLARSSL_PK_RSA ) )
{
SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) );
return( POLARSSL_ERR_SSL_PK_TYPE_MISMATCH );
}
if( ( ret = pk_encrypt( &ssl->session_negotiate->peer_cert->pk,
p, ssl->handshake->pmslen,
ssl->out_msg + offset + len_bytes, olen,
SSL_MAX_CONTENT_LEN - offset - len_bytes,
ssl->f_rng, ssl->p_rng ) ) != 0 )
{
SSL_DEBUG_RET( 1, "rsa_pkcs1_encrypt", ret );
return( ret );
}
#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
defined(POLARSSL_SSL_PROTO_TLS1_2)
if( len_bytes == 2 )
{
ssl->out_msg[offset+0] = (unsigned char)( *olen >> 8 );
ssl->out_msg[offset+1] = (unsigned char)( *olen );
*olen += 2;
}
#endif
return( 0 );
}
#endif /* POLARSSL_KEY_EXCHANGE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(POLARSSL_SSL_PROTO_TLS1_2)
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
@ -1241,10 +1303,10 @@ static int ssl_parse_server_key_exchange( ssl_context *ssl )
{
int ret;
const ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
unsigned char *p, *end;
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
unsigned char *p, *end;
size_t sig_len, params_len;
unsigned char hash[64];
md_type_t md_alg = POLARSSL_MD_NONE;
@ -1254,17 +1316,16 @@ static int ssl_parse_server_key_exchange( ssl_context *ssl )
SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) );
if( ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_DHE_RSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_RSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_PSK &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_DHE_PSK &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_PSK )
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA )
{
SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
ssl->state++;
return( 0 );
}
((void) p);
((void) end);
#endif
if( ( ret = ssl_read_record( ssl ) ) != 0 )
{
@ -1278,9 +1339,14 @@ static int ssl_parse_server_key_exchange( ssl_context *ssl )
return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
}
/*
* ServerKeyExchange may be skipped with PSK and RSA-PSK when the server
* doesn't use a psk_identity_hint
*/
if( ssl->in_msg[0] != SSL_HS_SERVER_KEY_EXCHANGE )
{
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK )
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK )
{
ssl->record_read = 1;
goto exit;
@ -1290,29 +1356,51 @@ static int ssl_parse_server_key_exchange( ssl_context *ssl )
return( POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE );
}
SSL_DEBUG_BUF( 3, "server key exchange", ssl->in_msg + 4, ssl->in_hslen - 4 );
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
p = ssl->in_msg + 4;
end = ssl->in_msg + ssl->in_hslen;
#endif
SSL_DEBUG_BUF( 3, "server key exchange", p, ssl->in_hslen - 4 );
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_RSA )
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_PSK )
{
if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
} /* FALLTROUGH */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK )
; /* nothing more to do */
else
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_RSA ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK )
{
if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "failed to parsebad server key exchange message" ) );
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_RSA ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA )
{
if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 )
@ -1323,60 +1411,10 @@ static int ssl_parse_server_key_exchange( ssl_context *ssl )
}
else
#endif /* POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK )
{
unsigned char *p = ssl->in_msg + 4;
unsigned char *end = ssl->in_msg + ssl->in_hslen;
if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK )
{
unsigned char *p = ssl->in_msg + 4;
unsigned char *end = ssl->in_msg + ssl->in_hslen;
if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_PSK )
{
unsigned char *p = ssl->in_msg + 4;
unsigned char *end = ssl->in_msg + ssl->in_hslen;
if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
{
SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
}
@ -1802,10 +1840,9 @@ static int ssl_write_client_key_exchange( ssl_context *ssl )
else
#endif /* POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_ECDHE_PSK )
{
@ -1830,6 +1867,14 @@ static int ssl_write_client_key_exchange( ssl_context *ssl )
}
else
#endif
#if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK )
{
if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 2 ) ) != 0 )
return( ret );
}
else
#endif
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK )
{
@ -1884,57 +1929,19 @@ static int ssl_write_client_key_exchange( ssl_context *ssl )
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA )
{
/*
* RSA key exchange -- send rsa_public(pkcs1 v1.5(premaster))
*/
ssl->handshake->premaster[0] = (unsigned char) ssl->max_major_ver;
ssl->handshake->premaster[1] = (unsigned char) ssl->max_minor_ver;
ssl->handshake->pmslen = 48;
ret = ssl->f_rng( ssl->p_rng, ssl->handshake->premaster + 2,
ssl->handshake->pmslen - 2 );
if( ret != 0 )
i = 4;
if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 0 ) ) != 0 )
return( ret );
if( ! pk_can_do( &ssl->session_negotiate->peer_cert->pk,
POLARSSL_PK_RSA ) )
{
SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) );
return( POLARSSL_ERR_SSL_PK_TYPE_MISMATCH );
}
i = ssl->minor_ver == SSL_MINOR_VERSION_0 ? 4 : 6;
ret = pk_encrypt( &ssl->session_negotiate->peer_cert->pk,
ssl->handshake->premaster, ssl->handshake->pmslen,
ssl->out_msg + i, &n, SSL_BUFFER_LEN,
ssl->f_rng, ssl->p_rng );
if( ret != 0 )
{
SSL_DEBUG_RET( 1, "rsa_pkcs1_encrypt", ret );
return( ret );
}
#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
defined(POLARSSL_SSL_PROTO_TLS1_2)
if( ssl->minor_ver != SSL_MINOR_VERSION_0 )
{
ssl->out_msg[4] = (unsigned char)( n >> 8 );
ssl->out_msg[5] = (unsigned char)( n );
}
#endif
}
else
#endif /* POLARSSL_KEY_EXCHANGE_RSA_ENABLED */
{
((void) ciphersuite_info);
SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE );
}

92
library/ssl_srv.c
View file

@ -1911,7 +1911,8 @@ static int ssl_write_server_key_exchange( ssl_context *ssl )
{
int ret;
size_t n = 0;
const ssl_ciphersuite_t *ciphersuite_info;
const ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
#if defined(POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
@ -1925,15 +1926,11 @@ static int ssl_write_server_key_exchange( ssl_context *ssl )
((void) dig_signed_len);
#endif
ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) );
if( ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_DHE_RSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_RSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_DHE_PSK &&
ciphersuite_info->key_exchange != POLARSSL_KEY_EXCHANGE_ECDHE_PSK )
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK )
{
SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) );
ssl->state++;
@ -2288,11 +2285,16 @@ static int ssl_parse_client_dh_public( ssl_context *ssl, unsigned char **p,
#endif /* POLARSSL_KEY_EXCHANGE_DHE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED)
static int ssl_parse_encrypted_pms_secret( ssl_context *ssl )
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
static int ssl_parse_encrypted_pms( ssl_context *ssl,
const unsigned char *p,
const unsigned char *end,
size_t pms_offset )
{
int ret = POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE;
size_t i, n = 0;
int ret;
size_t len = pk_get_len( ssl_own_key( ssl ) );
unsigned char *pms = ssl->handshake->premaster + pms_offset;
if( ! pk_can_do( ssl_own_key( ssl ), POLARSSL_PK_RSA ) )
{
@ -2303,17 +2305,12 @@ static int ssl_parse_encrypted_pms_secret( ssl_context *ssl )
/*
* Decrypt the premaster using own private RSA key
*/
i = 4;
n = pk_get_len( ssl_own_key( ssl ) );
ssl->handshake->pmslen = 48;
#if defined(POLARSSL_SSL_PROTO_TLS1) || defined(POLARSSL_SSL_PROTO_TLS1_1) || \
defined(POLARSSL_SSL_PROTO_TLS1_2)
if( ssl->minor_ver != SSL_MINOR_VERSION_0 )
{
i += 2;
if( ssl->in_msg[4] != ( ( n >> 8 ) & 0xFF ) ||
ssl->in_msg[5] != ( ( n ) & 0xFF ) )
if( *p++ != ( ( len >> 8 ) & 0xFF ) ||
*p++ != ( ( len ) & 0xFF ) )
{
SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
@ -2321,21 +2318,20 @@ static int ssl_parse_encrypted_pms_secret( ssl_context *ssl )
}
#endif
if( ssl->in_hslen != i + n )
if( p + len != end )
{
SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
ret = pk_decrypt( ssl_own_key( ssl ),
ssl->in_msg + i, n,
ssl->handshake->premaster, &ssl->handshake->pmslen,
ret = pk_decrypt( ssl_own_key( ssl ), p, len,
pms, &ssl->handshake->pmslen,
sizeof(ssl->handshake->premaster),
ssl->f_rng, ssl->p_rng );
if( ret != 0 || ssl->handshake->pmslen != 48 ||
ssl->handshake->premaster[0] != ssl->handshake->max_major_ver ||
ssl->handshake->premaster[1] != ssl->handshake->max_minor_ver )
pms[0] != ssl->handshake->max_major_ver ||
pms[1] != ssl->handshake->max_minor_ver )
{
SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
@ -2347,19 +2343,17 @@ static int ssl_parse_encrypted_pms_secret( ssl_context *ssl )
*/
ssl->handshake->pmslen = 48;
ret = ssl->f_rng( ssl->p_rng, ssl->handshake->premaster,
ssl->handshake->pmslen );
ret = ssl->f_rng( ssl->p_rng, pms, ssl->handshake->pmslen );
if( ret != 0 )
return( ret );
}
return( ret );
}
#endif /* POLARSSL_KEY_EXCHANGE_RSA_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE_RSA_ENABLED ||
POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
static int ssl_parse_client_psk_identity( ssl_context *ssl, unsigned char **p,
const unsigned char *end )
{
@ -2425,9 +2419,7 @@ static int ssl_parse_client_psk_identity( ssl_context *ssl, unsigned char **p,
return( ret );
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
static int ssl_parse_client_key_exchange( ssl_context *ssl )
{
@ -2542,6 +2534,33 @@ static int ssl_parse_client_key_exchange( ssl_context *ssl )
}
else
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA_PSK )
{
unsigned char *p = ssl->in_msg + 4;
unsigned char *end = ssl->in_msg + ssl->in_msglen;
if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
{
SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
return( ret );
}
if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 )
{
SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret );
return( ret );
}
if( ( ret = ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
SSL_DEBUG_RET( 1, "ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_DHE_PSK )
{
@ -2601,7 +2620,10 @@ static int ssl_parse_client_key_exchange( ssl_context *ssl )
#if defined(POLARSSL_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == POLARSSL_KEY_EXCHANGE_RSA )
{
if( ( ret = ssl_parse_encrypted_pms_secret( ssl ) ) != 0 )
if( ( ret = ssl_parse_encrypted_pms( ssl,
ssl->in_msg + 4,
ssl->in_msg + ssl->in_msglen,
0 ) ) != 0 )
{
SSL_DEBUG_RET( 1, ( "ssl_parse_parse_ecrypted_pms_secret" ), ret );
return( ret );

33
library/ssl_tls.c
View file

@ -839,9 +839,7 @@ void ssl_calc_verify_tls_sha384( ssl_context *ssl, unsigned char hash[48] )
#endif /* POLARSSL_SHA512_C */
#endif /* POLARSSL_SSL_PROTO_TLS1_2 */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
int ssl_psk_derive_premaster( ssl_context *ssl, key_exchange_type_t key_ex )
{
unsigned char *p = ssl->handshake->premaster;
@ -866,6 +864,19 @@ int ssl_psk_derive_premaster( ssl_context *ssl, key_exchange_type_t key_ex )
}
else
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( key_ex == POLARSSL_KEY_EXCHANGE_RSA_PSK )
{
/*
* other_secret already set by the ClientKeyExchange message,
* and is 48 bytes long
*/
*p++ = 0;
*p++ = 48;
p += 48;
}
else
#endif /* POLARSSL_KEY_EXCHANGE_RSA_PKS_ENABLED */
#if defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( key_ex == POLARSSL_KEY_EXCHANGE_DHE_PSK )
{
@ -926,9 +937,7 @@ int ssl_psk_derive_premaster( ssl_context *ssl, key_exchange_type_t key_ex )
return( 0 );
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_SSL_PROTO_SSL3)
/*
@ -3669,9 +3678,7 @@ int ssl_set_own_cert_alt( ssl_context *ssl, x509_crt *own_cert,
}
#endif /* POLARSSL_X509_CRT_PARSE_C */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
int ssl_set_psk( ssl_context *ssl, const unsigned char *psk, size_t psk_len,
const unsigned char *psk_identity, size_t psk_identity_len )
{
@ -3707,9 +3714,7 @@ void ssl_set_psk_cb( ssl_context *ssl,
ssl->f_psk = f_psk;
ssl->p_psk = p_psk;
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_DHM_C)
int ssl_set_dh_param( ssl_context *ssl, const char *dhm_P, const char *dhm_G )
@ -4386,9 +4391,7 @@ void ssl_free( ssl_context *ssl )
}
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( ssl->psk != NULL )
{
memset( ssl->psk, 0, ssl->psk_len );

24
programs/ssl/ssl_client2.c
View file

@ -166,17 +166,13 @@ static int my_verify( void *data, x509_crt *crt, int depth, int *flags )
#define USAGE_IO ""
#endif /* POLARSSL_X509_CRT_PARSE_C */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
#define USAGE_PSK \
" psk=%%s default: \"\" (in hex, without 0x)\n" \
" psk_identity=%%s default: \"Client_identity\"\n"
#else
#define USAGE_PSK ""
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_SSL_SESSION_TICKETS)
#define USAGE_TICKETS \
@ -244,9 +240,7 @@ int main( int argc, char *argv[] )
{
int ret = 0, len, server_fd, i, written, frags;
unsigned char buf[1024];
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[256];
size_t psk_len = 0;
#endif
@ -500,9 +494,7 @@ int main( int argc, char *argv[] )
opt.min_version = ciphersuite_info->min_minor_ver;
}
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
/*
* Unhexify the pre-shared key if any is given
*/
@ -550,9 +542,7 @@ int main( int argc, char *argv[] )
psk[ j / 2 ] |= c;
}
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
/*
* 0. Initialize the RNG and the session data
@ -720,9 +710,7 @@ int main( int argc, char *argv[] )
ssl_set_own_cert( &ssl, &clicert, &pkey );
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
ssl_set_psk( &ssl, psk, psk_len, (const unsigned char *) opt.psk_identity,
strlen( opt.psk_identity ) );
#endif

24
programs/ssl/ssl_server2.c
View file

@ -144,17 +144,13 @@ static void my_debug( void *ctx, int level, const char *str )
#define USAGE_IO ""
#endif /* POLARSSL_X509_CRT_PARSE_C */
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
#define USAGE_PSK \
" psk=%%s default: \"\" (in hex, without 0x)\n" \
" psk_identity=%%s default: \"Client_identity\"\n"
#else
#define USAGE_PSK ""
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(POLARSSL_SSL_SESSION_TICKETS)
#define USAGE_TICKETS \
@ -213,9 +209,7 @@ int main( int argc, char *argv[] )
int listen_fd;
int client_fd = -1;
unsigned char buf[1024];
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
unsigned char psk[256];
size_t psk_len = 0;
#endif
@ -473,9 +467,7 @@ int main( int argc, char *argv[] )
opt.min_version = ciphersuite_info->min_minor_ver;
}
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
/*
* Unhexify the pre-shared key if any is given
*/
@ -523,9 +515,7 @@ int main( int argc, char *argv[] )
psk[ j / 2 ] |= c;
}
}
#endif /* POLARSSL_KEY_EXCHANGE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED ||
POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#endif /* POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED */
/*
* 0. Initialize the RNG and the session data
@ -739,9 +729,7 @@ int main( int argc, char *argv[] )
ssl_set_own_cert( &ssl, &srvcert2, &pkey2 );
#endif
#if defined(POLARSSL_KEY_EXCHANGE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(POLARSSL_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(POLARSSL_KEY_EXCHANGE__SOME__PSK_ENABLED)
ssl_set_psk( &ssl, psk, psk_len, (const unsigned char *) opt.psk_identity,
strlen( opt.psk_identity ) );
#endif

33
tests/compat.sh
View file

@ -401,10 +401,28 @@ case $TYPE in
TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA \
TLS-DHE-PSK-WITH-AES-128-CBC-SHA \
TLS-DHE-PSK-WITH-AES-256-CBC-SHA \
TLS-PSK-WITH-NULL-SHA \
TLS-DHE-PSK-WITH-NULL-SHA \
TLS-PSK-WITH-NULL-SHA \
TLS-RSA-PSK-WITH-RC4-128-SHA \
TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA \
TLS-RSA-PSK-WITH-AES-256-CBC-SHA \
TLS-RSA-PSK-WITH-AES-128-CBC-SHA \
TLS-RSA-WITH-NULL-SHA \
TLS-RSA-WITH-NULL-MD5 \
"
if [ "$MODE" != "ssl3" ];
then
P_CIPHERS="$P_CIPHERS \
TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA \
TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA \
TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA \
TLS-ECDHE-PSK-WITH-RC4-128-SHA \
TLS-ECDHE-PSK-WITH-NULL-SHA \
"
fi
if [ "$MODE" = "tls1_2" ];
then
P_CIPHERS="$P_CIPHERS \
@ -424,6 +442,19 @@ case $TYPE in
TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384 \
TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256 \
TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384 \
TLS-RSA-PSK-WITH-AES-256-CBC-SHA384 \
TLS-RSA-PSK-WITH-AES-256-GCM-SHA384 \
TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384 \
TLS-RSA-PSK-WITH-AES-128-CBC-SHA256 \
TLS-RSA-PSK-WITH-AES-128-GCM-SHA256 \
TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256 \
TLS-RSA-WITH-NULL-SHA256 \
TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384 \
TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384 \
TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256 \
TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256 \
TLS-ECDHE-PSK-WITH-NULL-SHA384 \
TLS-ECDHE-PSK-WITH-NULL-SHA256 \
"
fi