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Diffstat (limited to 'polarssl/src/library/asn1write.c')
-rw-r--r--polarssl/src/library/asn1write.c241
1 files changed, 0 insertions, 241 deletions
diff --git a/polarssl/src/library/asn1write.c b/polarssl/src/library/asn1write.c
deleted file mode 100644
index e50c17c..0000000
--- a/polarssl/src/library/asn1write.c
+++ /dev/null
@@ -1,241 +0,0 @@
-/*
- * ASN.1 buffer writing functionality
- *
- * Copyright (C) 2006-2012, Brainspark B.V.
- *
- * This file is part of PolarSSL (http://www.polarssl.org)
- * Lead Maintainer: Paul Bakker <polarssl_maintainer at polarssl.org>
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "polarssl/config.h"
-
-#if defined(POLARSSL_ASN1_WRITE_C)
-
-#include "polarssl/asn1write.h"
-
-int asn1_write_len( unsigned char **p, unsigned char *start, size_t len )
-{
- if( len < 0x80 )
- {
- if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- *--(*p) = len;
- return( 1 );
- }
-
- if( len <= 0xFF )
- {
- if( *p - start < 2 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- *--(*p) = len;
- *--(*p) = 0x81;
- return( 2 );
- }
-
- if( *p - start < 3 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- // We assume we never have lengths larger than 65535 bytes
- //
- *--(*p) = len % 256;
- *--(*p) = ( len / 256 ) % 256;
- *--(*p) = 0x82;
-
- return( 3 );
-}
-
-int asn1_write_tag( unsigned char **p, unsigned char *start, unsigned char tag )
-{
- if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- *--(*p) = tag;
-
- return( 1 );
-}
-
-int asn1_write_mpi( unsigned char **p, unsigned char *start, mpi *X )
-{
- int ret;
- size_t len = 0;
-
- // Write the MPI
- //
- len = mpi_size( X );
-
- if( *p - start < (int) len )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- (*p) -= len;
- mpi_write_binary( X, *p, len );
-
- // DER format assumes 2s complement for numbers, so the leftmost bit
- // should be 0 for positive numbers and 1 for negative numbers.
- //
- if ( X->s ==1 && **p & 0x80 )
- {
- if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- *--(*p) = 0x00;
- len += 1;
- }
-
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) );
-
- return( len );
-}
-
-int asn1_write_null( unsigned char **p, unsigned char *start )
-{
- int ret;
- size_t len = 0;
-
- // Write NULL
- //
- ASN1_CHK_ADD( len, asn1_write_len( p, start, 0) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_NULL ) );
-
- return( len );
-}
-
-int asn1_write_oid( unsigned char **p, unsigned char *start, char *oid )
-{
- int ret;
- size_t len = 0;
-
- // Write OID
- //
- len = strlen( oid );
-
- if( *p - start < (int) len )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- (*p) -= len;
- memcpy( *p, oid, len );
-
- ASN1_CHK_ADD( len , asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len , asn1_write_tag( p, start, ASN1_OID ) );
-
- return( len );
-}
-
-int asn1_write_algorithm_identifier( unsigned char **p, unsigned char *start,
- char *algorithm_oid )
-{
- int ret;
- size_t null_len = 0;
- size_t oid_len = 0;
- size_t len = 0;
-
- // Write NULL
- //
- ASN1_CHK_ADD( null_len, asn1_write_null( p, start ) );
-
- // Write OID
- //
- ASN1_CHK_ADD( oid_len, asn1_write_oid( p, start, algorithm_oid ) );
-
- len = oid_len + null_len;
- ASN1_CHK_ADD( len, asn1_write_len( p, start, oid_len + null_len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start,
- ASN1_CONSTRUCTED | ASN1_SEQUENCE ) );
-
- return( len );
-}
-
-int asn1_write_int( unsigned char **p, unsigned char *start, int val )
-{
- int ret;
- size_t len = 0;
-
- // TODO negative values and values larger than 128
- // DER format assumes 2s complement for numbers, so the leftmost bit
- // should be 0 for positive numbers and 1 for negative numbers.
- //
- if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- len += 1;
- *--(*p) = val;
-
- if ( val > 0 && **p & 0x80 )
- {
- if( *p - start < 1 )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- *--(*p) = 0x00;
- len += 1;
- }
-
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_INTEGER ) );
-
- return( len );
-}
-
-int asn1_write_printable_string( unsigned char **p, unsigned char *start,
- char *text )
-{
- int ret;
- size_t len = 0;
-
- // Write string
- //
- len = strlen( text );
-
- if( *p - start < (int) len )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- (*p) -= len;
- memcpy( *p, text, len );
-
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_PRINTABLE_STRING ) );
-
- return( len );
-}
-
-int asn1_write_ia5_string( unsigned char **p, unsigned char *start,
- char *text )
-{
- int ret;
- size_t len = 0;
-
- // Write string
- //
- len = strlen( text );
-
- if( *p - start < (int) len )
- return( POLARSSL_ERR_ASN1_BUF_TOO_SMALL );
-
- (*p) -= len;
- memcpy( *p, text, len );
-
- ASN1_CHK_ADD( len, asn1_write_len( p, start, len ) );
- ASN1_CHK_ADD( len, asn1_write_tag( p, start, ASN1_IA5_STRING ) );
-
- return( len );
-}
-
-
-#endif