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Add parsing/printing for new X.509 keyUsage flags

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This commit is contained in:
Manuel Pégourié-Gonnard 2015-06-23 10:14:36 +02:00
parent b80d16d171
commit 9a702255f4
5 changed files with 32 additions and 2 deletions
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3
include/mbedtls/x509.h
View file

@ -110,6 +110,7 @@
/*
* X.509 v3 Key Usage Extension flags
* Reminder: update x509_info_key_usage() when adding new flags.
*/
#define MBEDTLS_X509_KU_DIGITAL_SIGNATURE (0x80) /* bit 0 */
#define MBEDTLS_X509_KU_NON_REPUDIATION (0x40) /* bit 1 */
@ -118,6 +119,8 @@
#define MBEDTLS_X509_KU_KEY_AGREEMENT (0x08) /* bit 4 */
#define MBEDTLS_X509_KU_KEY_CERT_SIGN (0x04) /* bit 5 */
#define MBEDTLS_X509_KU_CRL_SIGN (0x02) /* bit 6 */
#define MBEDTLS_X509_KU_ENCIPHER_ONLY (0x01) /* bit 7 */
#define MBEDTLS_X509_KU_DECIPHER_ONLY (0x8000) /* bit 8 */
/*
* Netscape certificate types

12
library/x509_crt.c
View file

@ -371,6 +371,7 @@ static int x509_get_key_usage( unsigned char **p,
unsigned int *key_usage)
{
int ret;
size_t i;
mbedtls_x509_bitstring bs = { 0, 0, NULL };
if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 )
@ -381,7 +382,12 @@ static int x509_get_key_usage( unsigned char **p,
MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* Get actual bitstring */
*key_usage = *bs.p;
*key_usage = 0;
for( i = 0; i < bs.len && i < sizeof( unsigned int ); i++ )
{
*key_usage |= (unsigned int) bs.p[i] << (8*i);
}
return( 0 );
}
@ -1274,7 +1280,7 @@ static int x509_info_cert_type( char **buf, size_t *size,
PRINT_ITEM( name );
static int x509_info_key_usage( char **buf, size_t *size,
unsigned char key_usage )
unsigned int key_usage )
{
int ret;
size_t n = *size;
@ -1288,6 +1294,8 @@ static int x509_info_key_usage( char **buf, size_t *size,
KEY_USAGE( MBEDTLS_X509_KU_KEY_AGREEMENT, "Key Agreement" );
KEY_USAGE( MBEDTLS_X509_KU_KEY_CERT_SIGN, "Key Cert Sign" );
KEY_USAGE( MBEDTLS_X509_KU_CRL_SIGN, "CRL Sign" );
KEY_USAGE( MBEDTLS_X509_KU_ENCIPHER_ONLY, "Encipher Only" );
KEY_USAGE( MBEDTLS_X509_KU_DECIPHER_ONLY, "Decipher Only" );
*size = n;
*buf = p;

1
tests/data_files/Readme-x509.txt
View file

@ -23,6 +23,7 @@ Finally, other CAs for specific purposes:
- test-ca-v1.crt: v1 "CA", signs
server1-v1.crt: v1 "intermediate CA", signs
server2-v1*.crt: EE cert (without of with chain in same file)
- keyUsage.decipherOnly.crt: has the decipherOnly keyUsage bit set
End-entity certificates
-----------------------

14
tests/data_files/keyUsage.decipherOnly.crt Normal file
View file

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

4
tests/suites/test_suite_x509parse.data
View file

@ -90,6 +90,10 @@ X509 Certificate information, Key Usage
depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C
x509_cert_info:"data_files/server1.key_usage.crt":"cert. version \: 3\nserial number \: 01\nissuer name \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name \: C=NL, O=PolarSSL, CN=PolarSSL Server 1\nissued on \: 2011-02-12 14\:44\:06\nexpires on \: 2021-02-12 14\:44\:06\nsigned using \: RSA with SHA1\nRSA key size \: 2048 bits\nbasic constraints \: CA=false\nkey usage \: Digital Signature, Non Repudiation, Key Encipherment\n"
X509 Certificate information, Key Usage with decipherOnly
depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C
x509_cert_info:"data_files/keyUsage.decipherOnly.crt":"cert. version \: 3\nserial number \: 9B\:13\:CE\:4C\:A5\:6F\:DE\:52\nissuer name \: C=GB, L=Cambridge, O=Default Company Ltd\nsubject name \: C=GB, L=Cambridge, O=Default Company Ltd\nissued on \: 2015-05-12 10\:36\:55\nexpires on \: 2018-05-11 10\:36\:55\nsigned using \: RSA with SHA1\nRSA key size \: 1024 bits\nbasic constraints \: CA=false\nkey usage \: Digital Signature, Non Repudiation, Key Encipherment, Decipher Only\n"
X509 Certificate information, Subject Alt Name
depends_on:MBEDTLS_PEM_PARSE_C:MBEDTLS_RSA_C
x509_cert_info:"data_files/cert_example_multi.crt":"cert. version \: 3\nserial number \: 11\nissuer name \: C=NL, O=PolarSSL, CN=PolarSSL Test CA\nsubject name \: C=NL, O=PolarSSL, CN=www.example.com\nissued on \: 2012-05-10 13\:23\:41\nexpires on \: 2022-05-11 13\:23\:41\nsigned using \: RSA with SHA1\nRSA key size \: 2048 bits\nbasic constraints \: CA=false\nsubject alt name \: example.com, example.net, *.example.org\n"