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Optimize config-suite-b for low RAM usage

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Manuel Pégourié-Gonnard 2014-06-24 17:30:05 +02:00
parent f87cad9397
commit e38eb0b7be
3 changed files with 38 additions and 3 deletions
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1
configs/config-ccm-psk-tls1_2.h
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@ -44,6 +44,7 @@
/* /*
* Save RAM at the expense of interoperability: do this only if you control * Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See coments in "polarssl/ssl.h".) * both ends of the connection! (See coments in "polarssl/ssl.h".)
* The optimal size here depends on the typical size of records.
*/ */
#define SSL_MAX_CONTENT_LEN 512 #define SSL_MAX_CONTENT_LEN 512

38
configs/config-suite-b.h
View file

@ -1,6 +1,14 @@
/* /*
* Minimal configuration for TLS NSA Suite B Profile (RFC 6460) * Minimal configuration for TLS NSA Suite B Profile (RFC 6460)
* *
* Distinguishing features:
* - no RSA or classic DH, fully based on ECC
* - optimized for low RAM usage
*
* Possible improvements:
* - if 128-bit security is enough, disable secp384r1 and SHA-512
* - use embedded certs in DER format and disable PEM_PARSE_C and BASE64_C
*
* See README.txt for usage instructions. * See README.txt for usage instructions.
*/ */
@ -48,8 +56,34 @@
#define POLARSSL_CERTS_C #define POLARSSL_CERTS_C
#define POLARSSL_PEM_PARSE_C #define POLARSSL_PEM_PARSE_C
/* For testing with compat.sh */ /* Save RAM at the expense of ROM */
#define POLARSSL_FS_IO #define POLARSSL_AES_ROM_TABLES
/* Save RAM by adjusting to our exact needs */
#define POLARSSL_MPI_MAX_SIZE 96
#define POLARSSL_ECP_MAX_BITS 384
/* Save RAM at the expense of speed, see ecp.h */
#define POLARSSL_ECP_WINDOW_SIZE 2
#define POLARSSL_ECP_FIXED_POINT_OPTIM 0
/* Uncomment for a significant speed benefit at the expense of some ROM */
//#define POLARSSL_ECP_NIST_OPTIM
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entrpy_poll" source, but you may want to add other ones.
* Minimum is 2 for the entropy test suite.
*/
#define ENTROPY_MAX_SOURCES 2
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See coments in "polarssl/ssl.h".)
* The minimum size here depends on the certificate chain used as well as the
* typical size of records.
*/
#define SSL_MAX_CONTENT_LEN 1024
#include "check_config.h" #include "check_config.h"

2
tests/scripts/test-ref-configs.pl
View file

@ -16,7 +16,7 @@ my %configs = (
'config-mini-tls1_1.h' 'config-mini-tls1_1.h'
=> '-m tls1_1 -f \'^DES-CBC3-SHA$\|^TLS-RSA-WITH-3DES-EDE-CBC-SHA$\'', => '-m tls1_1 -f \'^DES-CBC3-SHA$\|^TLS-RSA-WITH-3DES-EDE-CBC-SHA$\'',
'config-suite-b.h' 'config-suite-b.h'
=> "-m tls1_2 -f 'ECDHE-ECDSA.*AES.*GCM'", => "-m tls1_2 -f 'ECDHE-ECDSA.*AES.*GCM' -p PolarSSL",
'config-picocoin.h' 'config-picocoin.h'
=> 0, => 0,
'config-ccm-psk-tls1_2.h' 'config-ccm-psk-tls1_2.h'