void entropy_free( entropy_context *ctx )
{
#if defined(POLARSSL_HAVEGE_C)
havege_free( &ctx->havege_data );
#endif
polarssl_zeroize( ctx, sizeof( entropy_context ) );
#if defined(POLARSSL_THREADING_C)
polarssl_mutex_free( &ctx->mutex );
#endif
}
void receiver(int sender, int receiver,
char *s_pub_key, char *r_priv_key,
char *s_nonce, char *r_nonce)
/*@ requires [_]public_invar(nsl_pub) &*&
[_]decryption_key_classifier(nsl_public_key) &*&
principal(receiver, _) &*&
[?f1]cryptogram(s_pub_key, 8 * KEY_SIZE,
?s_pub_key_ccs, ?s_pub_key_cg) &*&
s_pub_key_cg == cg_public_key(sender, ?s_id) &*&
[?f2]cryptogram(r_priv_key, 8 * KEY_SIZE,
?r_priv_key_ccs, ?r_priv_key_cg) &*&
r_priv_key_cg == cg_private_key(receiver, ?r_id) &*&
chars(s_nonce, NONCE_SIZE, _) &*&
chars(r_nonce, NONCE_SIZE, _); @*/
/*@ ensures principal(receiver, _) &*&
[f1]cryptogram(s_pub_key, 8 * KEY_SIZE,
s_pub_key_ccs, s_pub_key_cg) &*&
[f2]cryptogram(r_priv_key, 8 * KEY_SIZE,
r_priv_key_ccs, r_priv_key_cg) &*&
cryptogram(r_nonce, NONCE_SIZE, ?r_nonce_ccs, ?r_nonce_cg) &*&
r_nonce_cg == cg_nonce(receiver, _) &*&
(
col || bad(sender) || bad(receiver) ?
chars(s_nonce, NONCE_SIZE, _)
:
cryptogram(s_nonce, NONCE_SIZE, ?s_nonce_ccs, ?s_nonce_cg) &*&
s_nonce_cg == cg_nonce(sender, _) &*&
cg_info(s_nonce_cg) == int_pair(1, int_pair(receiver, r_id)) &*&
cg_info(r_nonce_cg) == int_pair(2, int_pair(sender, int_pair(sender,
int_pair(receiver, r_id))))
); @*/
{
//@ open principal(receiver, _);
int socket1;
int socket2;
pk_context s_context;
pk_context r_context;
havege_state havege_state;
if(net_bind(&socket1, NULL, SERVER_PORT) != 0)
abort();
if(net_accept(socket1, &socket2, NULL) != 0)
abort();
if(net_set_block(socket2) != 0)
abort();
//@ close pk_context(&s_context);
pk_init(&s_context);
if (pk_parse_public_key(&s_context, s_pub_key,
(unsigned int) 8 * KEY_SIZE) != 0)
abort();
//@ close pk_context(&r_context);
pk_init(&r_context);
if (pk_parse_key(&r_context, r_priv_key,
(unsigned int) 8 * KEY_SIZE, NULL, 0) != 0)
abort();
// Generate NB
//@ close havege_state(&havege_state);
havege_init(&havege_state);
//@ close principal(receiver, _);
receiver_msg1(&socket2, &havege_state, &r_context, sender, receiver, s_nonce);
//@ open principal(receiver, _);
//@ assert receiver_inter(?p_orig, ?c_orig, ?p_inst, ?s_nonce_ccs, ?s_nonce_cg);
//@ int info = int_pair(sender, int_pair(p_inst, int_pair(p_orig, c_orig)));
//@ close random_request(receiver, int_pair(2, info), false);
if (havege_random(&havege_state, r_nonce, NONCE_SIZE) != 0) abort();
//@ close principal(receiver, _);
receiver_msg2(&socket2, &havege_state, &s_context, receiver,
s_nonce, r_nonce);
//@ if (col || bad(p_inst) || bad(receiver)) chars_to_crypto_chars(s_nonce, NONCE_SIZE);
//@ close receiver_inter(p_orig, c_orig, p_inst, s_nonce_ccs, s_nonce_cg);
receiver_msg3(&socket2, &havege_state, &r_context, sender, receiver,
s_nonce, r_nonce);
/*@ if (col || bad(sender) || bad(receiver))
crypto_chars_to_chars(s_nonce, NONCE_SIZE); @*/
havege_free(&havege_state);
//@ open havege_state(&havege_state);
//@ pk_release_context_with_key(&s_context);
pk_free(&s_context);
//@ open pk_context(&s_context);
//@ pk_release_context_with_key(&r_context);
pk_free(&r_context);
//@ open pk_context(&r_context);
net_close(socket2);
net_close(socket1);
}
void sender(int sender, int receiver,
char *s_priv_key, char *r_pub_key,
char *s_nonce, char *r_nonce)
/*@ requires [_]public_invar(nsl_pub) &*&
[_]decryption_key_classifier(nsl_public_key) &*&
principal(sender, _) &*&
[?f1]cryptogram(s_priv_key, 8 * KEY_SIZE,
?s_priv_key_ccs, ?s_priv_key_cg) &*&
s_priv_key_cg == cg_private_key(sender, ?s_id) &*&
[?f2]cryptogram(r_pub_key, 8 * KEY_SIZE,
?r_pub_key_ccs, ?r_pub_key_cg) &*&
r_pub_key_cg == cg_public_key(receiver, ?r_id) &*&
chars(s_nonce, NONCE_SIZE, _) &*&
chars(r_nonce, NONCE_SIZE, _); @*/
/*@ ensures principal(sender, _) &*&
[f1]cryptogram(s_priv_key, 8 * KEY_SIZE,
s_priv_key_ccs, s_priv_key_cg) &*&
[f2]cryptogram(r_pub_key, 8 * KEY_SIZE,
r_pub_key_ccs, r_pub_key_cg) &*&
cryptogram(s_nonce, NONCE_SIZE, ?s_nonce_ccs, ?s_nonce_cg) &*&
s_nonce_cg == cg_nonce(sender, _) &*&
cg_info(s_nonce_cg) == int_pair(1, int_pair(receiver, r_id)) &*&
col || bad(sender) || bad(receiver) ?
chars(r_nonce, NONCE_SIZE, _)
:
cryptogram(r_nonce, NONCE_SIZE, _, ?r_nonce_cg) &*&
r_nonce_cg == cg_nonce(receiver, _) &*&
cg_info(r_nonce_cg) == int_pair(2, int_pair(sender, int_pair(sender,
int_pair(receiver, r_id)))); @*/
{
int socket;
pk_context s_context;
pk_context r_context;
havege_state havege_state;
net_usleep(20000);
if(net_connect(&socket, NULL, SERVER_PORT) != 0)
abort();
if(net_set_block(socket) != 0)
abort();
//@ close pk_context(&s_context);
pk_init(&s_context);
if (pk_parse_key(&s_context, s_priv_key,
(unsigned int) 8 * KEY_SIZE, NULL, 0) != 0)
abort();
//@ close pk_context(&r_context);
pk_init(&r_context);
if (pk_parse_public_key(&r_context, r_pub_key,
(unsigned int) 8 * KEY_SIZE) != 0)
abort();
// Generate NA
//@ open principal(sender, _);
//@ close havege_state(&havege_state);
havege_init(&havege_state);
//@ close random_request(sender, int_pair(1, int_pair(receiver, r_id)), false);
if (havege_random(&havege_state, s_nonce, NONCE_SIZE) != 0) abort();
//@ assert cryptogram(s_nonce, NONCE_SIZE, ?cs_s_nonce, ?cg_s_nonce);
//@ close principal(sender, _);
sender_msg1(&socket, &havege_state, &r_context, sender, s_nonce);
sender_msg2(&socket, &havege_state, &s_context, sender, receiver,
s_nonce, r_nonce);
sender_msg3(&socket, &havege_state, &r_context, sender, r_nonce);
havege_free(&havege_state);
//@ open havege_state(&havege_state);
//@ pk_release_context_with_key(&s_context);
pk_free(&s_context);
//@ open pk_context(&s_context);
//@ pk_release_context_with_key(&r_context);
pk_free(&r_context);
//@ open pk_context(&r_context);
net_close(socket);
}
void app_send(char *key, char *message, int message_len)
/*@ requires polarssl_generated_values(?creator, ?count1) &*&
[?f0]polarssl_world(sc_auth_polarssl_pub) &*&
[?f1]polarssl_cryptogram(key, KEY_BYTE_SIZE, ?key_cs, ?key_cg) &*&
key_cg == polarssl_symmetric_key(creator, ?key_id) &*&
[?f2]chars(message, message_len, ?m_cs) &*&
message_len >= POLARSSL_MIN_ENCRYPTED_BYTE_SIZE &*&
message_len < POLARSSL_MAX_MESSAGE_BYTE_SIZE - 84 &*&
bad(creator) ?
[_]polarssl_public_generated_chars(sc_auth_polarssl_pub)(m_cs)
:
true == app_send_event(creator, m_cs);
@*/
/*@ ensures polarssl_generated_values(creator, ?count2) &*& count2 > count1 &*&
[f0]polarssl_world(sc_auth_polarssl_pub) &*&
[f1]polarssl_cryptogram(key, KEY_BYTE_SIZE, key_cs, key_cg) &*&
[f2]chars(message, message_len, m_cs);
@*/
{
int socket;
havege_state havege_state;
char iv[16];
// init
{
net_usleep(20000);
if(net_connect(&socket, NULL, APP_RECEIVE_PORT) != 0)
abort();
if(net_set_block(socket) != 0)
abort();
//@ close havege_state(&havege_state);
havege_init(&havege_state);
}
// iv stuff
{
//@ close random_request(creator, 0, false);
if (havege_random(&havege_state, iv, 16) != 0) abort();
}
//@ open polarssl_cryptogram(iv, 16, ?iv_cs, _);
char* m = malloc(16 + message_len + 16);
if (m == 0) abort();
memcpy(m, iv, 16);
//@ assert chars(m, 16, iv_cs);
//@ assert chars(m + 16, message_len + 16, ?cs1);
//@ polarssl_public_generated_chars_assume(sc_auth_polarssl_pub, iv_cs);
// encrypt message
{
unsigned int temp;
gcm_context gcm_context;
//@ close gcm_context(&gcm_context);
//@ open [f1]polarssl_cryptogram(key, KEY_BYTE_SIZE, key_cs, key_cg);
//@ close polarssl_key_id(creator, key_id);
if (gcm_init(&gcm_context, POLARSSL_AES_CIPHER_ID, key,
(unsigned int) KEY_BYTE_SIZE * 8) != 0) abort();
//@ close [f1]polarssl_cryptogram(key, KEY_BYTE_SIZE, key_cs, key_cg);
//@ chars_split(m + 16, message_len);
if (gcm_crypt_and_tag(&gcm_context, POLARSSL_GCM_ENCRYPT,
(unsigned int) message_len,
iv, 16, NULL, 0, message, m + 16, 16,
(char*) ((m + 16) + message_len)) != 0)
abort();
gcm_free(&gcm_context);
//@ open gcm_context(&gcm_context);
}
//@ assert polarssl_cryptogram(m + 16, message_len, ?e_cs, ?e_cg);
/*@ assert e_cg == polarssl_auth_encrypted(
creator, key_id, ?t_cs, m_cs, iv_cs); @*/
//@ close sc_auth_polarssl_pub(e_cg);
//@ leak sc_auth_polarssl_pub(e_cg);
/*@ polarssl_public_message_from_cryptogram(
sc_auth_polarssl_pub, m + 16, message_len, e_cs, e_cg); @*/
/*@ open polarssl_public_message(sc_auth_polarssl_pub)
(m + 16, message_len, e_cs); @*/
//@ assert chars(m + 16 + message_len, 16, t_cs);
//@ chars_join(m);
//@ chars_join(m);
//@ assert chars(m, 16 + message_len + 16, ?cs);
//@ append_assoc(iv_cs, e_cs, t_cs);
//@ assert cs == append(iv_cs, append(e_cs, t_cs));
//@ polarssl_public_generated_chars_assume(sc_auth_polarssl_pub, t_cs);
/*@ polarssl_public_generated_chars_join(
sc_auth_polarssl_pub, iv_cs, e_cs); @*/
/*@ polarssl_public_generated_chars_join(
sc_auth_polarssl_pub, append(iv_cs, e_cs), t_cs); @*/
/*@ close polarssl_public_message(sc_auth_polarssl_pub)
(m, 16 + message_len + 16,
append(iv_cs, append(e_cs, t_cs))); @*/
net_send(&socket, m, (unsigned int) 16 + (unsigned int) message_len + 16);
//@ open polarssl_public_message(sc_auth_polarssl_pub)(m, _, _);
{
free(m);
havege_free(&havege_state);
//@ open havege_state(&havege_state);
net_close(socket);
}
}
void sender(char *enc_key, char *hmac_key, char *msg, unsigned int msg_len)
/*@ requires [_]public_invar(enc_then_hmac_pub) &*&
principal(?sender, _) &*&
[?f1]cryptogram(enc_key, KEY_SIZE, ?enc_key_ccs, ?enc_key_cg) &*&
[?f2]cryptogram(hmac_key, KEY_SIZE, ?hmac_key_ccs, ?hmac_key_cg) &*&
enc_key_cg == cg_symmetric_key(sender, ?enc_id) &*&
hmac_key_cg == cg_symmetric_key(sender, ?hmac_id) &*&
cg_info(hmac_key_cg) == enc_id &*&
shared_with(sender, enc_id) == shared_with(sender, hmac_id) &*&
[?f3]crypto_chars(secret, msg, msg_len, ?msg_ccs) &*&
MAX_SIZE >= msg_len &*& msg_len >= MINIMAL_STRING_SIZE &*&
bad(sender) || bad(shared_with(sender, enc_id)) ?
[_]public_ccs(msg_ccs)
:
true == send(sender, shared_with(sender, enc_id), msg_ccs); @*/
/*@ ensures principal(sender, _) &*&
[f1]cryptogram(enc_key, KEY_SIZE, enc_key_ccs, enc_key_cg) &*&
[f2]cryptogram(hmac_key, KEY_SIZE, hmac_key_ccs, hmac_key_cg) &*&
[f3]crypto_chars(secret, msg, msg_len, msg_ccs); @*/
{
//@ open principal(sender, _);
int socket;
havege_state havege_state;
char iv[16];
unsigned int iv_off = 0;
char hmac[64];
aes_context aes_context;
net_usleep(20000);
if(net_connect(&socket, NULL, SERVER_PORT) != 0)
abort();
if(net_set_block(socket) != 0)
abort();
{
int message_len = 16 + (int) msg_len + 64;
char* message = malloc(message_len);
if (message == 0) abort();
// IV stuff
//@ close havege_state(&havege_state);
havege_init(&havege_state);
//@ close random_request(sender, 0, false);
if (havege_random(&havege_state, iv, 16) != 0) abort();
//@ open cryptogram(iv, 16, ?iv_ccs, ?iv_cg);
//@ close enc_then_hmac_pub(iv_cg);
//@ leak enc_then_hmac_pub(iv_cg);
memcpy(message, iv, 16);
//@ close cryptogram(message, 16, iv_ccs, iv_cg);
//@ public_cryptogram(message, iv_cg);
//@ assert chars(message, 16, ?iv_cs);
//@ public_chars(message, 16);
havege_free(&havege_state);
//@ open havege_state(&havege_state);
// encrypt
//@ close aes_context(&aes_context);
if (aes_setkey_enc(&aes_context, enc_key,
(unsigned int) (KEY_SIZE * 8)) != 0)
abort();
if (aes_crypt_cfb128(&aes_context, AES_ENCRYPT, msg_len,
&iv_off, iv, msg, message + 16) != 0)
abort();
//@ open cryptogram(message + 16, msg_len, ?enc_ccs, ?enc_cg);
//@ close cryptogram(message + 16, msg_len, enc_ccs, enc_cg);
//@ close enc_then_hmac_pub(enc_cg);
//@ leak enc_then_hmac_pub(enc_cg);
//@ public_cryptogram(message + 16, enc_cg);
//@ assert chars(message + 16, msg_len, ?enc_cs);
//@ public_chars(message + 16, msg_len);
//@ assert chars(message, 16 + msg_len, append(iv_cs, enc_cs));
//@ assert enc_cg == cg_encrypted(sender, enc_id, msg_ccs, iv_ccs);
zeroize(iv, 16);
aes_free(&aes_context);
//@ open aes_context(&aes_context);
// hmac
//@ chars_to_crypto_chars(message, 16 + msg_len);
//@ HASH_PUB_PAYLOAD(append(iv_cs, enc_cs))
sha512_hmac(hmac_key, KEY_SIZE, message,
(unsigned int) (16 + (int) msg_len),
message + 16 + (int) msg_len, 0);
//@ assert cryptogram(message + 16 + msg_len, 64, ?hmac_ccs, ?hmac_cg);
//@ cs_to_ccs_append(iv_cs, enc_cs);
//@ assert hmac_cg == cg_hmac(sender, hmac_id, append(iv_ccs, enc_ccs));
/*@ if (!col && !enc_then_hmac_public_key(sender, enc_id, true))
close enc_then_hmac_pub_1(enc_id, msg_ccs, iv_ccs); @*/
/*@ if (col || enc_then_hmac_public_key(sender, enc_id, true))
{
assert [_]public_ccs(iv_ccs);
assert [_]public_ccs(enc_ccs);
public_ccs_join(iv_ccs, enc_ccs);
}
@*/
//@ close enc_then_hmac_pub(hmac_cg);
//@ leak enc_then_hmac_pub(hmac_cg);
//@ public_cryptogram(message + 16 + msg_len, hmac_cg);
//@ assert chars(message + 16 + msg_len, 64, ?hmac_cs);
//@ append_assoc(iv_ccs, enc_ccs, hmac_ccs);
//@ append_assoc(iv_cs, enc_cs, hmac_cs);
//@ cs_to_ccs_crypto_chars(message, append(iv_cs, enc_cs));
/*@ assert chars(message, message_len,
append(iv_cs, append(enc_cs, hmac_cs))); @*/
net_send(&socket, message, (unsigned int) message_len);
free(message);
}
net_close(socket);
//@ close principal(sender, _);
}
int main( int argc, char *argv[] )
{
int keysize, i;
unsigned char tmp[200];
char title[TITLE_LEN];
todo_list todo;
if( argc == 1 )
memset( &todo, 1, sizeof( todo ) );
else
{
memset( &todo, 0, sizeof( todo ) );
for( i = 1; i < argc; i++ )
{
if( strcmp( argv[i], "md4" ) == 0 )
todo.md4 = 1;
else if( strcmp( argv[i], "md5" ) == 0 )
todo.md5 = 1;
else if( strcmp( argv[i], "ripemd160" ) == 0 )
todo.ripemd160 = 1;
else if( strcmp( argv[i], "sha1" ) == 0 )
todo.sha1 = 1;
else if( strcmp( argv[i], "sha256" ) == 0 )
todo.sha256 = 1;
else if( strcmp( argv[i], "sha512" ) == 0 )
todo.sha512 = 1;
else if( strcmp( argv[i], "arc4" ) == 0 )
todo.arc4 = 1;
else if( strcmp( argv[i], "des3" ) == 0 )
todo.des3 = 1;
else if( strcmp( argv[i], "des" ) == 0 )
todo.des = 1;
else if( strcmp( argv[i], "aes_cbc" ) == 0 )
todo.aes_cbc = 1;
else if( strcmp( argv[i], "aes_gcm" ) == 0 )
todo.aes_gcm = 1;
else if( strcmp( argv[i], "aes_ccm" ) == 0 )
todo.aes_ccm = 1;
else if( strcmp( argv[i], "camellia" ) == 0 )
todo.camellia = 1;
else if( strcmp( argv[i], "blowfish" ) == 0 )
todo.blowfish = 1;
else if( strcmp( argv[i], "havege" ) == 0 )
todo.havege = 1;
else if( strcmp( argv[i], "ctr_drbg" ) == 0 )
todo.ctr_drbg = 1;
else if( strcmp( argv[i], "hmac_drbg" ) == 0 )
todo.hmac_drbg = 1;
else if( strcmp( argv[i], "rsa" ) == 0 )
todo.rsa = 1;
else if( strcmp( argv[i], "dhm" ) == 0 )
todo.dhm = 1;
else if( strcmp( argv[i], "ecdsa" ) == 0 )
todo.ecdsa = 1;
else if( strcmp( argv[i], "ecdh" ) == 0 )
todo.ecdh = 1;
else
{
polarssl_printf( "Unrecognized option: %s\n", argv[i] );
polarssl_printf( "Available options: " OPTIONS );
}
}
}
polarssl_printf( "\n" );
memset( buf, 0xAA, sizeof( buf ) );
memset( tmp, 0xBB, sizeof( tmp ) );
#if defined(POLARSSL_MD4_C)
if( todo.md4 )
TIME_AND_TSC( "MD4", md4( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_MD5_C)
if( todo.md5 )
TIME_AND_TSC( "MD5", md5( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_RIPEMD160_C)
if( todo.ripemd160 )
TIME_AND_TSC( "RIPEMD160", ripemd160( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_SHA1_C)
if( todo.sha1 )
TIME_AND_TSC( "SHA-1", sha1( buf, BUFSIZE, tmp ) );
#endif
#if defined(POLARSSL_SHA256_C)
if( todo.sha256 )
TIME_AND_TSC( "SHA-256", sha256( buf, BUFSIZE, tmp, 0 ) );
#endif
#if defined(POLARSSL_SHA512_C)
if( todo.sha512 )
TIME_AND_TSC( "SHA-512", sha512( buf, BUFSIZE, tmp, 0 ) );
#endif
#if defined(POLARSSL_ARC4_C)
if( todo.arc4 )
{
arc4_context arc4;
arc4_init( &arc4 );
arc4_setup( &arc4, tmp, 32 );
TIME_AND_TSC( "ARC4", arc4_crypt( &arc4, BUFSIZE, buf, buf ) );
arc4_free( &arc4 );
}
#endif
#if defined(POLARSSL_DES_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.des3 )
{
des3_context des3;
des3_init( &des3 );
des3_set3key_enc( &des3, tmp );
TIME_AND_TSC( "3DES",
des3_crypt_cbc( &des3, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
des3_free( &des3 );
}
if( todo.des )
{
des_context des;
des_init( &des );
des_setkey_enc( &des, tmp );
TIME_AND_TSC( "DES",
des_crypt_cbc( &des, DES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
des_free( &des );
}
#endif
#if defined(POLARSSL_AES_C)
#if defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.aes_cbc )
{
aes_context aes;
aes_init( &aes );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
aes_setkey_enc( &aes, tmp, keysize );
TIME_AND_TSC( title,
aes_crypt_cbc( &aes, AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
}
aes_free( &aes );
}
#endif
#if defined(POLARSSL_GCM_C)
if( todo.aes_gcm )
{
gcm_context gcm;
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-GCM-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
gcm_init( &gcm, POLARSSL_CIPHER_ID_AES, tmp, keysize );
TIME_AND_TSC( title,
gcm_crypt_and_tag( &gcm, GCM_ENCRYPT, BUFSIZE, tmp,
12, NULL, 0, buf, buf, 16, tmp ) );
gcm_free( &gcm );
}
}
#endif
#if defined(POLARSSL_CCM_C)
if( todo.aes_ccm )
{
ccm_context ccm;
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "AES-CCM-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
ccm_init( &ccm, POLARSSL_CIPHER_ID_AES, tmp, keysize );
TIME_AND_TSC( title,
ccm_encrypt_and_tag( &ccm, BUFSIZE, tmp,
12, NULL, 0, buf, buf, tmp, 16 ) );
ccm_free( &ccm );
}
}
#endif
#endif
#if defined(POLARSSL_CAMELLIA_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.camellia )
{
camellia_context camellia;
camellia_init( &camellia );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "CAMELLIA-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
camellia_setkey_enc( &camellia, tmp, keysize );
TIME_AND_TSC( title,
camellia_crypt_cbc( &camellia, CAMELLIA_ENCRYPT,
BUFSIZE, tmp, buf, buf ) );
}
camellia_free( &camellia );
}
#endif
#if defined(POLARSSL_BLOWFISH_C) && defined(POLARSSL_CIPHER_MODE_CBC)
if( todo.blowfish )
{
blowfish_context blowfish;
blowfish_init( &blowfish );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
snprintf( title, sizeof( title ), "BLOWFISH-CBC-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
blowfish_setkey( &blowfish, tmp, keysize );
TIME_AND_TSC( title,
blowfish_crypt_cbc( &blowfish, BLOWFISH_ENCRYPT, BUFSIZE,
tmp, buf, buf ) );
}
blowfish_free( &blowfish );
}
#endif
#if defined(POLARSSL_HAVEGE_C)
if( todo.havege )
{
havege_state hs;
havege_init( &hs );
TIME_AND_TSC( "HAVEGE", havege_random( &hs, buf, BUFSIZE ) );
havege_free( &hs );
}
#endif
#if defined(POLARSSL_CTR_DRBG_C)
if( todo.ctr_drbg )
{
ctr_drbg_context ctr_drbg;
if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
exit(1);
TIME_AND_TSC( "CTR_DRBG (NOPR)",
if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
exit(1) );
if( ctr_drbg_init( &ctr_drbg, myrand, NULL, NULL, 0 ) != 0 )
exit(1);
ctr_drbg_set_prediction_resistance( &ctr_drbg, CTR_DRBG_PR_ON );
TIME_AND_TSC( "CTR_DRBG (PR)",
if( ctr_drbg_random( &ctr_drbg, buf, BUFSIZE ) != 0 )
exit(1) );
ctr_drbg_free( &ctr_drbg );
}
void attacker()
/*@ requires [_]public_invar(?pub) &*&
[_]decryption_key_classifier(?classifier) &*&
public_invariant_constraints(pub, ?proof_pred) &*&
proof_pred() &*& principal(?bad_one, _) &*& true == bad(bad_one) &*&
is_public_key_classifier(_, pub, classifier, proof_pred); @*/
/*@ ensures public_invariant_constraints(pub, proof_pred) &*&
proof_pred() &*& principal(bad_one, _) &*&
is_public_key_classifier(_, pub, classifier, proof_pred); @*/
{
bool havege_failure = false;
int server_or_client;
int port;
int* socket;
int socket1;
int socket2;
//@ open principal(bad_one, _);
havege_state havege_state;
//@ close havege_state(&havege_state);
havege_init(&havege_state);
//@ open public_invariant_constraints(pub, proof_pred);
/*@
{
lemma void principal_with_public_nonces(cryptogram nonce)
requires is_bad_nonce_is_public(?proof, pub, proof_pred) &*&
proof_pred() &*&
nonce == cg_nonce(bad_one, _);
ensures is_bad_nonce_is_public(proof, pub, proof_pred) &*&
proof_pred() &*&
[_]pub(nonce);
{
proof(nonce);
}
produce_lemma_function_pointer_chunk(principal_with_public_nonces) :
principal_with_public_nonces
(pub, attacker_nonce_pred(pub, proof_pred), bad_one)(nonce__)
{
open attacker_nonce_pred(pub, proof_pred)();
call();
close attacker_nonce_pred(pub, proof_pred)();
}
{duplicate_lemma_function_pointer_chunk(principal_with_public_nonces);};
}
@*/
//@ close_havege_util(pub, proof_pred, bad_one);
r_int(&havege_state, &server_or_client);
r_int(&havege_state, &port);
//@ open_havege_util(pub, proof_pred, bad_one);
bool network_failure = false;
if (server_or_client % 2 == 0)
{
if(net_connect(&socket1, NULL, port) != 0) network_failure = true;
else if(net_set_block(socket1) != 0) network_failure = true;
socket = &socket1;
}
else
{
if(net_bind(&socket1, NULL, port) != 0)
{network_failure = true;}
else if(net_accept(socket1, &socket2, NULL) != 0)
{net_close(socket1); network_failure = true;}
else if(net_set_block(socket2) != 0)
{net_close(socket1); network_failure = true;}
socket = &socket2;
}
if (!network_failure)
{
//@ close attacker_invariant(pub, proof_pred, ?kc, &havege_state, socket, bad_one);
int j = 0;
while(j < POLARSSL_ATTACKER_ITERATIONS)
/*@ invariant attacker_invariant(pub, proof_pred, kc,
&havege_state, socket, bad_one); @*/
{
attacker_core(&havege_state, socket);
j++;
}
//@ open attacker_invariant(pub, proof_pred, kc, &havege_state, socket, bad_one);
if (server_or_client % 2 == 0)
net_close(socket1);
else
{
net_close(socket1);
net_close(socket2);
}
}
//@ close public_invariant_constraints(pub, proof_pred);
//@ close principal(bad_one, _);
havege_free(&havege_state);
//@ open havege_state(&havege_state);
/*@ leak is_principal_with_public_nonces(_, pub,
attacker_nonce_pred(pub, proof_pred), bad_one); @*/
}
