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Adapt x509write_pubkey interface to use PK

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key_app_writer will be fixed later
This commit is contained in:
Manuel Pégourié-Gonnard 2013-09-12 00:59:40 +02:00 committed by Paul Bakker
parent 33250b0461
commit e1f821a6eb
3 changed files with 23 additions and 15 deletions
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12
include/polarssl/x509write.h
View file

@ -380,19 +380,19 @@ void x509write_crt_free( x509write_cert *ctx );
int x509write_crt_der( x509write_cert *ctx, unsigned char *buf, size_t size );
/**
* \brief Write a RSA public key to a PKCS#1 DER structure
* \brief Write a public key to a DER structure
* Note: data is written at the end of the buffer! Use the
* return value to determine where you should start
* using the buffer
*
* \param rsa RSA to write away
* \param key public key to write away
* \param buf buffer to write to
* \param size size of the buffer
*
* \return length of data written if successful, or a specific
* error code
*/
int x509write_pubkey_der( rsa_context *rsa, unsigned char *buf, size_t size );
int x509write_pubkey_der( pk_context *key, unsigned char *buf, size_t size );
/**
* \brief Write a RSA key to a PKCS#1 DER structure
@ -447,15 +447,15 @@ int x509write_csr_der( x509write_csr *ctx, unsigned char *buf, size_t size,
int x509write_crt_pem( x509write_cert *ctx, unsigned char *buf, size_t size );
/**
* \brief Write a RSA public key to a PKCS#1 PEM string
* \brief Write a public key to a PEM string
*
* \param rsa RSA to write away
* \param key public key to write away
* \param buf buffer to write to
* \param size size of the buffer
*
* \return 0 successful, or a specific error code
*/
int x509write_pubkey_pem( rsa_context *rsa, unsigned char *buf, size_t size );
int x509write_pubkey_pem( pk_context *key, unsigned char *buf, size_t size );
/**
* \brief Write a RSA key to a PKCS#1 PEM string

23
library/x509write.c
View file

@ -434,11 +434,17 @@ int x509write_crt_set_ns_cert_type( x509write_cert *ctx,
return( 0 );
}
int x509write_pubkey_der( rsa_context *rsa, unsigned char *buf, size_t size )
int x509write_pubkey_der( pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char *c;
size_t len = 0;
rsa_context *rsa;
if( !pk_can_do( key, POLARSSL_PK_RSA ) )
return( POLARSSL_ERR_X509_FEATURE_UNAVAILABLE );
rsa = pk_rsa( *key );
c = buf + size;
@ -730,9 +736,7 @@ int x509write_csr_der( x509write_csr *ctx, unsigned char *buf, size_t size,
ASN1_CHK_ADD( len, asn1_write_len( &c, tmp_buf, len ) );
ASN1_CHK_ADD( len, asn1_write_tag( &c, tmp_buf, ASN1_CONSTRUCTED | ASN1_CONTEXT_SPECIFIC ) );
if( !pk_can_do( ctx->key, POLARSSL_PK_RSA ) )
return( POLARSSL_ERR_X509_FEATURE_UNAVAILABLE );
ASN1_CHK_ADD( pub_len, x509write_pubkey_der( pk_rsa( *ctx->key ),
ASN1_CHK_ADD( pub_len, x509write_pubkey_der( ctx->key,
tmp_buf, c - tmp_buf ) );
c -= pub_len;
len += pub_len;
@ -792,6 +796,11 @@ int x509write_crt_der( x509write_cert *ctx, unsigned char *buf, size_t size )
size_t sub_len = 0, pub_len = 0, sig_len = 0;
size_t len = 0;
// temporary compatibility hack
pk_context subject_key;
subject_key.pk_info = pk_info_from_type( POLARSSL_PK_RSA );
subject_key.pk_ctx = ctx->subject_key;
c = tmp_buf + sizeof( tmp_buf );
// Generate correct OID
@ -813,7 +822,7 @@ int x509write_crt_der( x509write_cert *ctx, unsigned char *buf, size_t size )
/*
* SubjectPublicKeyInfo
*/
ASN1_CHK_ADD( pub_len, x509write_pubkey_der( ctx->subject_key,
ASN1_CHK_ADD( pub_len, x509write_pubkey_der( &subject_key,
tmp_buf, c - tmp_buf ) );
c -= pub_len;
len += pub_len;
@ -959,12 +968,12 @@ int x509write_crt_pem( x509write_cert *crt, unsigned char *buf, size_t size )
return( 0 );
}
int x509write_pubkey_pem( rsa_context *rsa, unsigned char *buf, size_t size )
int x509write_pubkey_pem( pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char output_buf[4096];
if( ( ret = x509write_pubkey_der( rsa, output_buf,
if( ( ret = x509write_pubkey_der( key, output_buf,
sizeof(output_buf) ) ) < 0 )
{
return( ret );

3
tests/suites/test_suite_x509write.function
View file

@ -132,7 +132,6 @@ void x509_pubkey_check( char *key_file )
unsigned char buf[5000];
unsigned char check_buf[5000];
int ret;
size_t olen = sizeof( check_buf );
FILE *f;
memset( buf, 0, sizeof( buf ) );
@ -141,7 +140,7 @@ void x509_pubkey_check( char *key_file )
pk_init( &key );
TEST_ASSERT( x509parse_public_keyfile( &key, key_file ) == 0 );
ret = x509write_pubkey_pem( pk_rsa( key ), buf, sizeof( buf ) - 1);
ret = x509write_pubkey_pem( &key, buf, sizeof( buf ) - 1);
TEST_ASSERT( ret >= 0 );
f = fopen( key_file, "r" );