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Diffstat (limited to 'libjava/gnu/java/security/provider/DERReader.java')
-rw-r--r-- | libjava/gnu/java/security/provider/DERReader.java | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/libjava/gnu/java/security/provider/DERReader.java b/libjava/gnu/java/security/provider/DERReader.java deleted file mode 100644 index 0f6e492a5f5..00000000000 --- a/libjava/gnu/java/security/provider/DERReader.java +++ /dev/null @@ -1,152 +0,0 @@ -/* DERReader.java - Copyright (C) 1999 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath 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, or (at your option) -any later version. - -GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -02111-1307 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package gnu.java.security.provider; - -import java.math.BigInteger; -import gnu.java.security.der.DEREncodingException; - -public class DERReader -{ - byte source[]; - int pos; - - static final int UNIVERSAL = 1; - static final int APPLICATION = 2; - static final int CONTEXT_SPECIFIC = 3; - static final int PRIVATE = 4; - - - public DERReader() - { - source = null; - pos = 0; - } - - public DERReader( byte source[] ) - { - init( source ); - } - - public void init( String source ) - { - init( source.getBytes() ); - } - - public void init( byte source[] ) - { - this.source = source; - pos = 0; - } - - public BigInteger getBigInteger() throws DEREncodingException - { - return new BigInteger( getPrimitive() ); - } - - //Reads Primitive, definite-length method - private byte[] getPrimitive() throws DEREncodingException - { - int tmp = pos; - - //Read Identifier - byte identifier = source[tmp++]; - if( (0x20 & identifier) != 0) - throw new DEREncodingException(); - int type = translateLeadIdentifierByte(identifier); - //System.out.println("Type: " + type); - - //get tag - int tag = (0x1f & identifier); - //if( tag == 0x1f) - // tag = getIdentifier(tmp); - //System.out.println("Tag: " + tag); - - //get length - byte len = source[tmp]; //may be length of length parameter - long length = 0x7f & len; - int i; - if( (0x80 & len) != 0 ) { - //System.out.println("Extra Long Length"); - len &= 0x7f; - //System.out.println("Length of Length: " + len); - //get length here - length = 0; - for( i = 0; i < len; i++ ) { - tmp++; - length <<= 8; - length += (source[tmp] < 0 ) ? - (256 + source[tmp]) : - source[tmp]; - //System.out.println("Length of Length: " + length); - } - tmp++; - } else - tmp++; - - /*System.out.println("Position: " + tmp); - System.out.println("Length: " + length); - for( i = 0; i < 10; i++) - System.out.print(source[tmp + i] + " "); - System.out.println();*/ - - byte tmpb[] = new byte[ (int)length ]; - System.arraycopy( source, tmp, tmpb, 0, (int)length); - pos = (int)(tmp + length); - return tmpb; - } - - private int translateLeadIdentifierByte(byte b) - { - if( (0x3f & b ) == b) - return UNIVERSAL; - else if( (0x7f & b ) == b) - return APPLICATION; - else if( (0xbf & b ) == b) - return CONTEXT_SPECIFIC; - else - return PRIVATE; - } - - private int getIdentifier(int tpos) - { - while( (0x80 & source[tpos]) != 0) - tpos++; - return tpos; - } -} |