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Merge verification of the keyUsage extension in X.509 certificates

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This commit is contained in:
Paul Bakker 2014-04-09 15:53:24 +02:00
commit 043a2e26d0
20 changed files with 592 additions and 54 deletions
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14
include/polarssl/config.h
View file

@ -957,6 +957,20 @@
*/
//#define POLARSSL_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
/**
* \def POLARSSL_X509_CHECK_KEY_USAGE
*
* Enable verification of the keyUsage extension (CA and leaf certificates).
*
* Disabling this avoids problems with mis-issued and/or misused
* (intermediate) CA and leaf certificates.
*
* \warning Depending on your PKI use, disabling this can be a security risk!
*
* Comment to skip keyUsage checking for both CA and leaf certificates.
*/
#define POLARSSL_X509_CHECK_KEY_USAGE
/**
* \def POLARSSL_ZLIB_SUPPORT
*

13
include/polarssl/ssl.h
View file

@ -1657,6 +1657,19 @@ static inline x509_crt *ssl_own_cert( ssl_context *ssl )
return( ssl->handshake->key_cert == NULL ? NULL
: ssl->handshake->key_cert->cert );
}
/*
* Check usage of a certificate wrt extensions:
* keyUsage, extendedKeyUsage (later), and nSCertType (later).
*
* Warning: cert_endpoint is the endpoint of the cert (ie, of our peer when we
* check a cert we received from them)!
*
* Return 0 if everything is OK, -1 if not.
*/
int ssl_check_cert_usage( const x509_crt *cert,
const ssl_ciphersuite_t *ciphersuite,
int cert_endpoint );
#endif /* POLARSSL_X509_CRT_PARSE_C */
/* constant-time buffer comparison */

20
include/polarssl/x509_crt.h
View file

@ -244,6 +244,26 @@ int x509_crt_verify( x509_crt *crt,
int (*f_vrfy)(void *, x509_crt *, int, int *),
void *p_vrfy );
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
/**
* \brief Check usage of certificate against keyUsage extension.
*
* \param crt Leaf certificate used.
* \param usage Intended usage(s) (eg KU_KEY_ENCIPHERMENT before using the
* certificate to perform an RSA key exchange).
*
* \return 0 is these uses of the certificate are allowed,
* POLARSSL_ERR_X509_BAD_INPUT_DATA if the keyUsage extension
* is present but does not contain all the bits set in the
* usage argument.
*
* \note You should only call this function on leaf certificates, on
* (intermediate) CAs the keyUsage extension is automatically
* checked by \c x509_crt_verify().
*/
int x509_crt_check_key_usage( const x509_crt *crt, int usage );
#endif /* POLARSSL_X509_CHECK_KEY_USAGE) */
#if defined(POLARSSL_X509_CRL_PARSE_C)
/**
* \brief Verify the certificate revocation status

14
library/ssl_srv.c
View file

@ -797,6 +797,20 @@ static int ssl_pick_cert( ssl_context *ssl,
if( ! pk_can_do( cur->key, pk_alg ) )
continue;
/*
* This avoids sending the client a cert it'll reject based on
* keyUsage or other extensions.
*
* It also allows the user to provision different certificates for
* different uses based on keyUsage, eg if they want to avoid signing
* and decrypting with the same RSA key.
*/
if( ssl_check_cert_usage( cur->cert, ciphersuite_info,
SSL_IS_SERVER ) != 0 )
{
continue;
}
#if defined(POLARSSL_ECDSA_C)
if( pk_alg == POLARSSL_PK_ECDSA )
{

76
library/ssl_tls.c
View file

@ -2699,6 +2699,9 @@ int ssl_parse_certificate( ssl_context *ssl )
return( POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED );
}
/*
* Main check: verify certificate
*/
ret = x509_crt_verify( ssl->session_negotiate->peer_cert,
ssl->ca_chain, ssl->ca_crl, ssl->peer_cn,
&ssl->session_negotiate->verify_result,
@ -2708,21 +2711,35 @@ int ssl_parse_certificate( ssl_context *ssl )
{
SSL_DEBUG_RET( 1, "x509_verify_cert", ret );
}
/*
* Secondary checks: always done, but change 'ret' only if it was 0
*/
#if defined(POLARSSL_SSL_SET_CURVES)
else
{
pk_context *pk = &ssl->session_negotiate->peer_cert->pk;
const pk_context *pk = &ssl->session_negotiate->peer_cert->pk;
/* If certificate uses an EC key, make sure the curve is OK */
if( pk_can_do( pk, POLARSSL_PK_ECKEY ) &&
! ssl_curve_is_acceptable( ssl, pk_ec( *pk )->grp.id ) )
{
SSL_DEBUG_MSG( 1, ( "bad server certificate (EC key curve)" ) );
ret = POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE;
SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) );
if( ret == 0 )
ret = POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE;
}
}
#endif
if( ssl_check_cert_usage( ssl->session_negotiate->peer_cert,
ciphersuite_info,
! ssl->endpoint ) != 0 )
{
SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) );
if( ret == 0 )
ret = POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE;
}
if( ssl->authmode != SSL_VERIFY_REQUIRED )
ret = 0;
}
@ -4747,3 +4764,54 @@ int ssl_curve_is_acceptable( const ssl_context *ssl, ecp_group_id grp_id )
return( 0 );
}
#endif
int ssl_check_cert_usage( const x509_crt *cert,
const ssl_ciphersuite_t *ciphersuite,
int cert_endpoint )
{
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
int usage = 0;
#endif
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
if( cert_endpoint == SSL_IS_SERVER )
{
/* Server part of the key exchange */
switch( ciphersuite->key_exchange )
{
case POLARSSL_KEY_EXCHANGE_RSA:
case POLARSSL_KEY_EXCHANGE_RSA_PSK:
usage = KU_KEY_ENCIPHERMENT;
break;
case POLARSSL_KEY_EXCHANGE_DHE_RSA:
case POLARSSL_KEY_EXCHANGE_ECDHE_RSA:
case POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA:
usage = KU_DIGITAL_SIGNATURE;
break;
case POLARSSL_KEY_EXCHANGE_ECDH_RSA:
case POLARSSL_KEY_EXCHANGE_ECDH_ECDSA:
usage = KU_KEY_AGREEMENT;
break;
/* Don't use default: we want warnings when adding new values */
case POLARSSL_KEY_EXCHANGE_NONE:
case POLARSSL_KEY_EXCHANGE_PSK:
case POLARSSL_KEY_EXCHANGE_DHE_PSK:
case POLARSSL_KEY_EXCHANGE_ECDHE_PSK:
usage = 0;
}
}
else
{
/* Client auth: we only implement rsa_sign and ecdsa_sign for now */
usage = KU_DIGITAL_SIGNATURE;
}
if( x509_crt_check_key_usage( cert, usage ) != 0 )
return( -1 );
#endif /* POLARSSL_X509_CHECK_KEY_USAGE */
return( 0 );
}

117
library/x509_crt.c
View file

@ -1360,6 +1360,17 @@ int x509_crt_info( char *buf, size_t size, const char *prefix,
return( (int) ( size - n ) );
}
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
int x509_crt_check_key_usage( const x509_crt *crt, int usage )
{
if( ( crt->ext_types & EXT_KEY_USAGE ) != 0 &&
( crt->key_usage & usage ) != usage )
return( POLARSSL_ERR_X509_BAD_INPUT_DATA );
return( 0 );
}
#endif
#if defined(POLARSSL_X509_CRL_PARSE_C)
/*
* Return 1 if the certificate is revoked, or 0 otherwise.
@ -1413,6 +1424,17 @@ static int x509_crt_verifycrl( x509_crt *crt, x509_crt *ca,
continue;
}
/*
* Check if the CA is configured to sign CRLs
*/
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
if( x509_crt_check_key_usage( ca, KU_CRL_SIGN ) != 0 )
{
flags |= BADCRL_NOT_TRUSTED;
break;
}
#endif
/*
* Check if CRL is correctly signed by the trusted CA
*/
@ -1516,6 +1538,30 @@ static int x509_wildcard_verify( const char *cn, x509_buf *name )
return( 0 );
}
/*
* Check if 'parent' is a suitable parent (signing CA) for 'child'.
* Return 0 if yes, -1 if not.
*/
static int x509_crt_check_parent( const x509_crt *child,
const x509_crt *parent )
{
if( parent->version == 0 ||
parent->ca_istrue == 0 ||
child->issuer_raw.len != parent->subject_raw.len ||
memcmp( child->issuer_raw.p, parent->subject_raw.p,
child->issuer_raw.len ) != 0 )
{
return( -1 );
}
#if defined(POLARSSL_X509_CHECK_KEY_USAGE)
if( x509_crt_check_key_usage( parent, KU_KEY_CERT_SIGN ) != 0 )
return( -1 );
#endif
return( 0 );
}
static int x509_crt_verify_top(
x509_crt *child, x509_crt *trust_ca,
x509_crl *ca_crl, int path_cnt, int *flags,
@ -1549,16 +1595,10 @@ static int x509_crt_verify_top(
else
md( md_info, child->tbs.p, child->tbs.len, hash );
while( trust_ca != NULL )
for( /* trust_ca */ ; trust_ca != NULL; trust_ca = trust_ca->next )
{
if( trust_ca->version == 0 ||
child->issuer_raw.len != trust_ca->subject_raw.len ||
memcmp( child->issuer_raw.p, trust_ca->subject_raw.p,
child->issuer_raw.len ) != 0 )
{
trust_ca = trust_ca->next;
if( x509_crt_check_parent( child, trust_ca ) != 0 )
continue;
}
/*
* Reduce path_len to check against if top of the chain is
@ -1574,7 +1614,6 @@ static int x509_crt_verify_top(
if( trust_ca->max_pathlen > 0 &&
trust_ca->max_pathlen < check_path_cnt )
{
trust_ca = trust_ca->next;
continue;
}
@ -1582,7 +1621,6 @@ static int x509_crt_verify_top(
pk_verify( &trust_ca->pk, child->sig_md, hash, md_info->size,
child->sig.p, child->sig.len ) != 0 )
{
trust_ca = trust_ca->next;
continue;
}
@ -1678,34 +1716,27 @@ static int x509_crt_verify_child(
*flags |= x509_crt_verifycrl(child, parent, ca_crl);
#endif
grandparent = parent->next;
while( grandparent != NULL )
/* Look for a grandparent upwards the chain */
for( grandparent = parent->next;
grandparent != NULL;
grandparent = grandparent->next )
{
if( grandparent->version == 0 ||
grandparent->ca_istrue == 0 ||
parent->issuer_raw.len != grandparent->subject_raw.len ||
memcmp( parent->issuer_raw.p, grandparent->subject_raw.p,
parent->issuer_raw.len ) != 0 )
{
grandparent = grandparent->next;
continue;
}
break;
if( x509_crt_check_parent( parent, grandparent ) == 0 )
break;
}
/* Is our parent part of the chain or at the top? */
if( grandparent != NULL )
{
/*
* Part of the chain
*/
ret = x509_crt_verify_child( parent, grandparent, trust_ca, ca_crl, path_cnt + 1, &parent_flags, f_vrfy, p_vrfy );
ret = x509_crt_verify_child( parent, grandparent, trust_ca, ca_crl,
path_cnt + 1, &parent_flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
else
{
ret = x509_crt_verify_top( parent, trust_ca, ca_crl, path_cnt + 1, &parent_flags, f_vrfy, p_vrfy );
ret = x509_crt_verify_top( parent, trust_ca, ca_crl,
path_cnt + 1, &parent_flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
@ -1789,37 +1820,25 @@ int x509_crt_verify( x509_crt *crt,
}
}
/*
* Iterate upwards in the given cert chain, to find our crt parent.
* Ignore any upper cert with CA != TRUE.
*/
parent = crt->next;
while( parent != NULL && parent->version != 0 )
/* Look for a parent upwards the chain */
for( parent = crt->next; parent != NULL; parent = parent->next )
{
if( parent->ca_istrue == 0 ||
crt->issuer_raw.len != parent->subject_raw.len ||
memcmp( crt->issuer_raw.p, parent->subject_raw.p,
crt->issuer_raw.len ) != 0 )
{
parent = parent->next;
continue;
}
break;
if( x509_crt_check_parent( crt, parent ) == 0 )
break;
}
/* Are we part of the chain or at the top? */
if( parent != NULL )
{
/*
* Part of the chain
*/
ret = x509_crt_verify_child( crt, parent, trust_ca, ca_crl, pathlen, flags, f_vrfy, p_vrfy );
ret = x509_crt_verify_child( crt, parent, trust_ca, ca_crl,
pathlen, flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}
else
{
ret = x509_crt_verify_top( crt, trust_ca, ca_crl, pathlen, flags, f_vrfy, p_vrfy );
ret = x509_crt_verify_top( crt, trust_ca, ca_crl,
pathlen, flags, f_vrfy, p_vrfy );
if( ret != 0 )
return( ret );
}

21
tests/data_files/server2.ku-ds.crt Normal file
View file

@ -0,0 +1,21 @@
-----BEGIN CERTIFICATE-----
MIIDijCCAnKgAwIBAgIBLDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
MTQwNDA5MDg0NDUxWhcNMjQwNDA2MDg0NDUxWjA0MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN
owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz
NtSj+uGxdtiQwWG0ZlI2oiZTqqt0Xgd9GYLbKtgfoNkNHC1JZvdbJXNG6AuKT2kM
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hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya
HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaOBnzCBnDAJ
BgNVHRMEAjAAMB0GA1UdDgQWBBSlBehkuNzfYA9QEk1gqGSvTYtDkzBjBgNVHSME
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BgNVBAoTCFBvbGFyU1NMMRkwFwYDVQQDExBQb2xhclNTTCBUZXN0IENBggEAMAsG
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0PGXpO5btth4R8BHzGqCdObKvPujp5BDq3xgcAFicA3HUMNsJoTDv/RYXY7je1Q5
ntVyVPeji0AWMUYQjcqHTQQPGBgdJrRTMaYglZh15IhJ16ICNd9rWIeBA0h/+r0y
QuFEBz0nfe7Dvpqct7gJCv+7/5tCujx4LT17z7oK8BZN5SePAGU2ykJsUXk8ZICT
ongaQQVQwS6/GJ6A5V8ecaUvFrTby1h9+2sOW8n2NRGiaaG5gkvxVeayemcmOQ==
-----END CERTIFICATE-----

21
tests/data_files/server2.ku-ds_ke.crt Normal file
View file

@ -0,0 +1,21 @@
-----BEGIN CERTIFICATE-----
MIIDijCCAnKgAwIBAgIBMDANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
MTQwNDA5MTAwMjQ5WhcNMjQwNDA2MTAwMjQ5WjA0MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN
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hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya
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ImWgEkgT/wDVIHoamciO6KU36d0iAEEP2eYgxv2/sVHvjjsseTdvYh3D3VuOmQtS
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sYDyD/ZyIlavoPSEiD3LTT/Tp6BIpz+zb4WHOHLEvUCsZputqxPVcNoEAi9xuA==
-----END CERTIFICATE-----

21
tests/data_files/server2.ku-ka.crt Normal file
View file

@ -0,0 +1,21 @@
-----BEGIN CERTIFICATE-----
MIIDijCCAnKgAwIBAgIBKjANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
MTQwNDA5MDg0NDIzWhcNMjQwNDA2MDg0NDIzWjA0MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN
owCIp+4ea5anUrSQ7y1yej4kmvy2NKwk9XfgJmSMnLAofaHa6ozmyRyWvP7BBFKz
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hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya
HT4P6DSYW8tzS1KW2BGiLICIaTla0w+w3lkvEcf36hIBMJcCAwEAAaOBnzCBnDAJ
BgNVHRMEAjAAMB0GA1UdDgQWBBSlBehkuNzfYA9QEk1gqGSvTYtDkzBjBgNVHSME
XDBagBS0WuSls97SUva51aaVD+s+vMf9/6E/pD0wOzELMAkGA1UEBhMCTkwxETAP
BgNVBAoTCFBvbGFyU1NMMRkwFwYDVQQDExBQb2xhclNTTCBUZXN0IENBggEAMAsG
A1UdDwQEAwIDCDANBgkqhkiG9w0BAQUFAAOCAQEAriPloIWfu7U8d1hls97C7OBI
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q6mPo7cBbVwjhGciQRiYgufFpdnbXR05HDgOVPK7qqjL6UOZnbu5caIEvIJgdwXn
n8WB9x/Ii4/2S9ysmRdRhDBYekzgH3Ac2UnHJTMh1XaSL817MW6B9BDKHt4xa7pW
cplDzrFKYbmxSSxzALE4Dr+zRvmDx4bcYpBkRRfOhnnR1caQBgaZzPcX/Vu+vw8e
qs2nyBW5RBu8MBCBU1DpqOSo6jl0QTpuq3NzQZIouG9fyckqDJS5ibrxQTutPw==
-----END CERTIFICATE-----

21
tests/data_files/server2.ku-ke.crt Normal file
View file

@ -0,0 +1,21 @@
-----BEGIN CERTIFICATE-----
MIIDijCCAnKgAwIBAgIBKzANBgkqhkiG9w0BAQUFADA7MQswCQYDVQQGEwJOTDER
MA8GA1UEChMIUG9sYXJTU0wxGTAXBgNVBAMTEFBvbGFyU1NMIFRlc3QgQ0EwHhcN
MTQwNDA5MDg0NDM5WhcNMjQwNDA2MDg0NDM5WjA0MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDCCASIwDQYJKoZIhvcN
AQEBBQADggEPADCCAQoCggEBAMFNo93nzR3RBNdJcriZrA545Do8Ss86ExbQWuTN
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hYvai0Re4hjGYi/HZo36Xdh98yeJKQHFkA4/J/EwyEoO79bex8cna8cFPXrEAjya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==
-----END CERTIFICATE-----

14
tests/data_files/server5.ku-ds.crt Normal file
View file

@ -0,0 +1,14 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

14
tests/data_files/server5.ku-ka.crt Normal file
View file

@ -0,0 +1,14 @@
-----BEGIN CERTIFICATE-----
MIICKzCCAbKgAwIBAgIBLjAKBggqhkjOPQQDAjA+MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxHDAaBgNVBAMTE1BvbGFyc3NsIFRlc3QgRUMgQ0EwHhcN
MTQwNDA5MDg0ODUwWhcNMjQwNDA2MDg0ODUwWjA0MQswCQYDVQQGEwJOTDERMA8G
A1UEChMIUG9sYXJTU0wxEjAQBgNVBAMTCWxvY2FsaG9zdDBZMBMGByqGSM49AgEG
CCqGSM49AwEHA0IABDfMVtl2CR5acj7HWS3/IG7ufPkGkXTQrRS192giWWKSTuUA
2CMR/+ov0jRdXRa9iojCa3cNVc2KKg76Aci07f+jgaowgacwCQYDVR0TBAIwADAd
BgNVHQ4EFgQUUGGlj9QH2deCAQzlZX+MY0anE74wbgYDVR0jBGcwZYAUnW0gJEkB
PyvLeLUZvH4kydv7NnyhQqRAMD4xCzAJBgNVBAYTAk5MMREwDwYDVQQKEwhQb2xh
clNTTDEcMBoGA1UEAxMTUG9sYXJzc2wgVGVzdCBFQyBDQYIJAMFD4n5iQ8zoMAsG
A1UdDwQEAwIDCDAKBggqhkjOPQQDAgNnADBkAjACzKQ88/NvngMQBFc9rC484+gO
BRkXP28BqRcj8sBt3EfmEGH23BuhkZuB1OFZuMICMC4/pHgbOQtaY9WZPUROUVVZ
OuO6XsVbhiE0rb/mumqmUwuOrCtC/KFdvFZol4BNGA==
-----END CERTIFICATE-----

14
tests/data_files/server5.ku-ke.crt Normal file
View file

@ -0,0 +1,14 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

12
tests/data_files/test-ca2.ku-crl.crt Normal file
View file

@ -0,0 +1,12 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

12
tests/data_files/test-ca2.ku-crt.crt Normal file
View file

@ -0,0 +1,12 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

12
tests/data_files/test-ca2.ku-crt_crl.crt Normal file
View file

@ -0,0 +1,12 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

12
tests/data_files/test-ca2.ku-ds.crt Normal file
View file

@ -0,0 +1,12 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

158
tests/ssl-opt.sh
View file

@ -151,8 +151,9 @@ run_test() {
CLI_EXIT=$?
echo "EXIT: $CLI_EXIT" >> cli_out
# psk is usefull when server only has bad certs
if is_polar "$SRV_CMD"; then
"$P_CLI" request_page=SERVERQUIT tickets=0 auth_mode=none \
"$P_CLI" request_page=SERVERQUIT tickets=0 auth_mode=none psk=abc123 \
crt_file=data_files/cli2.crt key_file=data_files/cli2.key \
>/dev/null
else
@ -980,6 +981,161 @@ run_test "ALPN #6 (both, no common)" \
fi
# Tests for keyUsage in leaf certificates, part 1:
# server-side certificate/suite selection
run_test "keyUsage srv #1 (RSA, digitalSignature -> ECDHE-RSA)" \
"$P_SRV key_file=data_files/server2.key \
crt_file=data_files/server2.ku-ds.crt" \
"$P_CLI" \
0 \
-c "Ciphersuite is TLS-ECDHE-RSA-WITH-"
run_test "keyUsage srv #2 (RSA, keyEncipherment -> RSA)" \
"$P_SRV key_file=data_files/server2.key \
crt_file=data_files/server2.ku-ke.crt" \
"$P_CLI" \
0 \
-c "Ciphersuite is TLS-RSA-WITH-"
# add psk to leave an option for client to send SERVERQUIT
run_test "keyUsage srv #3 (RSA, keyAgreement -> fail)" \
"$P_SRV psk=abc123 key_file=data_files/server2.key \
crt_file=data_files/server2.ku-ka.crt" \
"$P_CLI psk=badbad" \
1 \
-C "Ciphersuite is "
run_test "keyUsage srv #4 (ECDSA, digitalSignature -> ECDHE-ECDSA)" \
"$P_SRV key_file=data_files/server5.key \
crt_file=data_files/server5.ku-ds.crt" \
"$P_CLI" \
0 \
-c "Ciphersuite is TLS-ECDHE-ECDSA-WITH-"
run_test "keyUsage srv #5 (ECDSA, keyAgreement -> ECDH-)" \
"$P_SRV key_file=data_files/server5.key \
crt_file=data_files/server5.ku-ka.crt" \
"$P_CLI" \
0 \
-c "Ciphersuite is TLS-ECDH-"
# add psk to leave an option for client to send SERVERQUIT
run_test "keyUsage srv #6 (ECDSA, keyEncipherment -> fail)" \
"$P_SRV psk=abc123 key_file=data_files/server5.key \
crt_file=data_files/server5.ku-ke.crt" \
"$P_CLI psk=badbad" \
1 \
-C "Ciphersuite is "
# Tests for keyUsage in leaf certificates, part 2:
# client-side checking of server cert
run_test "keyUsage cli #1 (DigitalSignature+KeyEncipherment, RSA: OK)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ds_ke.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
0 \
-C "bad certificate (usage extensions)" \
-C "Processing of the Certificate handshake message failed" \
-c "Ciphersuite is TLS-"
run_test "keyUsage cli #2 (DigitalSignature+KeyEncipherment, DHE-RSA: OK)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ds_ke.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-DHE-RSA-WITH-AES-128-CBC-SHA" \
0 \
-C "bad certificate (usage extensions)" \
-C "Processing of the Certificate handshake message failed" \
-c "Ciphersuite is TLS-"
run_test "keyUsage cli #3 (KeyEncipherment, RSA: OK)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ke.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
0 \
-C "bad certificate (usage extensions)" \
-C "Processing of the Certificate handshake message failed" \
-c "Ciphersuite is TLS-"
run_test "keyUsage cli #4 (KeyEncipherment, DHE-RSA: fail)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ke.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-DHE-RSA-WITH-AES-128-CBC-SHA" \
1 \
-c "bad certificate (usage extensions)" \
-c "Processing of the Certificate handshake message failed" \
-C "Ciphersuite is TLS-"
run_test "keyUsage cli #5 (DigitalSignature, DHE-RSA: OK)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ds.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-DHE-RSA-WITH-AES-128-CBC-SHA" \
0 \
-C "bad certificate (usage extensions)" \
-C "Processing of the Certificate handshake message failed" \
-c "Ciphersuite is TLS-"
run_test "keyUsage cli #5 (DigitalSignature, RSA: fail)" \
"$O_SRV -key data_files/server2.key \
-cert data_files/server2.ku-ds.crt" \
"$P_CLI debug_level=2 \
force_ciphersuite=TLS-RSA-WITH-AES-128-CBC-SHA" \
1 \
-c "bad certificate (usage extensions)" \
-c "Processing of the Certificate handshake message failed" \
-C "Ciphersuite is TLS-"
# Tests for keyUsage in leaf certificates, part 3:
# server-side checking of client cert
run_test "keyUsage cli-auth #1 (RSA, DigitalSignature: OK)" \
"$P_SRV debug_level=2 auth_mode=optional" \
"$O_CLI -key data_files/server2.key \
-cert data_files/server2.ku-ds.crt" \
0 \
-S "bad certificate (usage extensions)" \
-S "Processing of the Certificate handshake message failed"
run_test "keyUsage cli-auth #2 (RSA, KeyEncipherment: fail (soft))" \
"$P_SRV debug_level=2 auth_mode=optional" \
"$O_CLI -key data_files/server2.key \
-cert data_files/server2.ku-ke.crt" \
0 \
-s "bad certificate (usage extensions)" \
-S "Processing of the Certificate handshake message failed"
run_test "keyUsage cli-auth #3 (RSA, KeyEncipherment: fail (hard))" \
"$P_SRV debug_level=2 auth_mode=required" \
"$O_CLI -key data_files/server2.key \
-cert data_files/server2.ku-ke.crt" \
1 \
-s "bad certificate (usage extensions)" \
-s "Processing of the Certificate handshake message failed"
run_test "keyUsage cli-auth #4 (ECDSA, DigitalSignature: OK)" \
"$P_SRV debug_level=2 auth_mode=optional" \
"$O_CLI -key data_files/server5.key \
-cert data_files/server5.ku-ds.crt" \
0 \
-S "bad certificate (usage extensions)" \
-S "Processing of the Certificate handshake message failed"
run_test "keyUsage cli-auth #5 (ECDSA, KeyAgreement: fail (soft))" \
"$P_SRV debug_level=2 auth_mode=optional" \
"$O_CLI -key data_files/server5.key \
-cert data_files/server5.ku-ka.crt" \
0 \
-s "bad certificate (usage extensions)" \
-S "Processing of the Certificate handshake message failed"
# Final report
echo "------------------------------------------------------------------------"

45
tests/suites/test_suite_x509parse.data
View file

@ -442,6 +442,26 @@ X509 Certificate verification #51 (Valid, multiple CAs, reverse order)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_RSA_C:POLARSSL_ECP_DP_SECP192R1_ENABLED:POLARSSL_PKCS1_V15
x509_verify:"data_files/server2.crt":"data_files/test-ca_cat21.crt":"data_files/crl.pem":"NULL":0:0:"NULL"
X509 Certificate verification #52 (CA keyUsage valid)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_SHA256_C
x509_verify:"data_files/server5.crt":"data_files/test-ca2.ku-crt_crl.crt":"data_files/crl-ec-sha256.pem":"NULL":0:0:"NULL"
X509 Certificate verification #53 (CA keyUsage missing cRLSign)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_SHA256_C
x509_verify:"data_files/server5.crt":"data_files/test-ca2.ku-crt.crt":"data_files/crl-ec-sha256.pem":"NULL":POLARSSL_ERR_X509_CERT_VERIFY_FAILED:BADCRL_NOT_TRUSTED:"NULL"
X509 Certificate verification #54 (CA keyUsage missing cRLSign, no CRL)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_SHA256_C
x509_verify:"data_files/server5.crt":"data_files/test-ca2.ku-crt.crt":"data_files/crl.pem":"NULL":0:0:"NULL"
X509 Certificate verification #55 (CA keyUsage missing keyCertSign)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_SHA256_C
x509_verify:"data_files/server5.crt":"data_files/test-ca2.ku-crl.crt":"data_files/crl-ec-sha256.pem":"NULL":POLARSSL_ERR_X509_CERT_VERIFY_FAILED:BADCERT_NOT_TRUSTED:"NULL"
X509 Certificate verification #55 (CA keyUsage plain wrong)
depends_on:POLARSSL_PEM_PARSE_C:POLARSSL_ECDSA_C:POLARSSL_SHA256_C
x509_verify:"data_files/server5.crt":"data_files/test-ca2.ku-ds.crt":"data_files/crl-ec-sha256.pem":"NULL":POLARSSL_ERR_X509_CERT_VERIFY_FAILED:BADCERT_NOT_TRUSTED:"NULL"
X509 Parse Selftest
depends_on:POLARSSL_MD5_C:POLARSSL_PEM_PARSE_C
x509_selftest:
@ -826,3 +846,28 @@ x509_oid_numstr:"2A864886F70D":"1.2.840.113549":15:14
X509 OID numstring #5 (arithmetic overflow)
x509_oid_numstr:"2A8648F9F8F7F6F5F4F3F2F1F001":"":100:POLARSSL_ERR_OID_BUF_TOO_SMALL
X509 crt keyUsage #1 (no extension, expected KU)
x509_check_key_usage:"data_files/server1.crt":KU_DIGITAL_SIGNATURE|KU_KEY_ENCIPHERMENT:0
X509 crt keyUsage #2 (no extension, suprising KU)
x509_check_key_usage:"data_files/server1.crt":KU_KEY_CERT_SIGN:0
X509 crt keyUsage #3 (extension present, no KU)
x509_check_key_usage:"data_files/server1.key_usage.crt":0:0
X509 crt keyUsage #4 (extension present, single KU present)
x509_check_key_usage:"data_files/server1.key_usage.crt":KU_DIGITAL_SIGNATURE:0
X509 crt keyUsage #5 (extension present, single KU absent)
x509_check_key_usage:"data_files/server1.key_usage.crt":KU_KEY_CERT_SIGN:POLARSSL_ERR_X509_BAD_INPUT_DATA
X509 crt keyUsage #6 (extension present, combined KU present)
x509_check_key_usage:"data_files/server1.key_usage.crt":KU_DIGITAL_SIGNATURE|KU_KEY_ENCIPHERMENT:0
X509 crt keyUsage #7 (extension present, combined KU both absent)
x509_check_key_usage:"data_files/server1.key_usage.crt":KU_KEY_CERT_SIGN|KU_CRL_SIGN:POLARSSL_ERR_X509_BAD_INPUT_DATA
X509 crt keyUsage #8 (extension present, combined KU one absent)
x509_check_key_usage:"data_files/server1.key_usage.crt":KU_KEY_ENCIPHERMENT|KU_KEY_AGREEMENT:POLARSSL_ERR_X509_BAD_INPUT_DATA

15
tests/suites/test_suite_x509parse.function
View file

@ -316,6 +316,21 @@ void x509_oid_numstr( char *oid_str, char *numstr, int blen, int ret )
}
/* END_CASE */
/* BEGIN_CASE depends_on:POLARSSL_X509_CRT_PARSE_C */
void x509_check_key_usage( char *crt_file, int usage, int ret )
{
x509_crt crt;
x509_crt_init( &crt );
TEST_ASSERT( x509_crt_parse_file( &crt, crt_file ) == 0 );
TEST_ASSERT( x509_crt_check_key_usage( &crt, usage ) == ret );
x509_crt_free( &crt );
}
/* END_CASE */
/* BEGIN_CASE depends_on:POLARSSL_X509_CRT_PARSE_C:POLARSSL_SELF_TEST */
void x509_selftest()
{