sandmark.obfuscate.methodmadness
Class SignatureBludgeoner

java.lang.Object
  |
  +--sandmark.Algorithm
        |
        +--sandmark.obfuscate.GeneralObfuscator
              |
              +--sandmark.obfuscate.AppObfuscator
                    |
                    +--sandmark.obfuscate.methodmadness.SignatureBludgeoner

All Implemented Interfaces:

de.fub.bytecode.Constants

public class SignatureBludgeoner

extends AppObfuscator

implements de.fub.bytecode.Constants

Bludgeons the signatures of methods so that they take Object[] and return Object in order to hide the information implicitly encapsulated in methods' argument lists.

Used by Method2RMadness obfuscator.

Code quality: Seems to work, but has not been extensively tested. Main concern: correctness of code by which it is determined whether or not a method is renamable (Sandmark's ClassHierarchy class).

Author:

Martin Stepp (stepp@cs.arizona.edu)

Field Summary

Fields inherited from interface de.fub.bytecode.Constants

AALOAD, AASTORE, ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, ACCESS_NAMES, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ANEWARRAY_QUICK, ARETURN, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, ATTR_CODE, ATTR_CONSTANT_VALUE, ATTR_DEPRECATED, ATTR_EXCEPTIONS, ATTR_INNER_CLASSES, ATTR_LINE_NUMBER_TABLE, ATTR_LOCAL_VARIABLE_TABLE, ATTR_PMG, ATTR_SIGNATURE, ATTR_SOURCE_FILE, ATTR_STACK_MAP, ATTR_SYNTHETIC, ATTR_UNKNOWN, ATTRIBUTE_NAMES, BALOAD, BASTORE, BIPUSH, BREAKPOINT, CALOAD, CASTORE, CHECKCAST, CHECKCAST_QUICK, CONSTANT_Class, CONSTANT_Double, CONSTANT_Fieldref, CONSTANT_Float, CONSTANT_Integer, CONSTANT_InterfaceMethodref, CONSTANT_Long, CONSTANT_Methodref, CONSTANT_NameAndType, CONSTANT_NAMES, CONSTANT_String, CONSTANT_Utf8, CONSTRUCTOR_NAME, CONSUME_STACK, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, FSUB, GETFIELD, GETFIELD_QUICK, GETFIELD_QUICK_W, GETFIELD2_QUICK, GETSTATIC, GETSTATIC_QUICK, GETSTATIC2_QUICK, GOTO, GOTO_W, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILLEGAL_OPCODE, ILLEGAL_TYPE, ILOAD, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMPDEP1, IMPDEP2, IMUL, INEG, INSTANCEOF, INSTANCEOF_QUICK, INT2BYTE, INT2CHAR, INT2SHORT, INTERFACES_IMPLEMENTED_BY_ARRAYS, INVOKEINTERFACE, INVOKEINTERFACE_QUICK, INVOKENONVIRTUAL, INVOKENONVIRTUAL_QUICK, INVOKESPECIAL, INVOKESTATIC, INVOKESTATIC_QUICK, INVOKESUPER_QUICK, INVOKEVIRTUAL, INVOKEVIRTUAL_QUICK, INVOKEVIRTUAL_QUICK_W, INVOKEVIRTUALOBJECT_QUICK, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, ITEM_Bogus, ITEM_Double, ITEM_Float, ITEM_InitObject, ITEM_Integer, ITEM_Long, ITEM_NAMES, ITEM_NewObject, ITEM_Null, ITEM_Object, IUSHR, IXOR, JSR, JSR_W, KNOWN_ATTRIBUTES, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC_QUICK, LDC_W, LDC_W_QUICK, LDC2_W, LDC2_W_QUICK, LDIV, LLOAD, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MAJOR, MAJOR_1_1, MAJOR_1_2, MAJOR_1_3, MAX_ACC_FLAG, MAX_BYTE, MAX_CODE_SIZE, MAX_CP_ENTRIES, MAX_SHORT, MINOR, MINOR_1_1, MINOR_1_2, MINOR_1_3, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, MULTIANEWARRAY_QUICK, NEW, NEW_QUICK, NEWARRAY, NO_OF_OPERANDS, NOP, OPCODE_NAMES, POP, POP2, PRODUCE_STACK, PUSH, PUTFIELD, PUTFIELD_QUICK, PUTFIELD_QUICK_W, PUTFIELD2_QUICK, PUTSTATIC, PUTSTATIC_QUICK, PUTSTATIC2_QUICK, RESERVED, RET, RETURN, SALOAD, SASTORE, SHORT_TYPE_NAMES, SIPUSH, STATIC_INITIALIZER_NAME, SWAP, SWITCH, T_ADDRESS, T_ARRAY, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_OBJECT, T_REFERENCE, T_SHORT, T_UNKNOWN, T_VOID, TABLESWITCH, TYPE_NAMES, TYPE_OF_OPERANDS, UNDEFINED, UNPREDICTABLE, WIDE

Constructor Summary

SignatureBludgeoner()

Method Summary

void	apply(ClassFileCollection cfc) Bludgeons the method arguments in this ClassFileCollection's classes.
java.lang.String	getAlgHTML() Returns an HTML description of this obfuscator.
java.lang.String	getAlgURL() Returns the URL at which you can find information about this obfuscator.
java.lang.String	getAuthor() Specifies the author of the algorithm.
java.lang.String	getAuthorEmail() Specifies the email address author of the algorithm.
ConfigProperties	getConfigProperties() Returns this obfuscator's configuration properties.
java.lang.String	getDescription() Specifies what this algorithm does, briefly.
java.lang.String	getLongName() Returns a long description of this obfuscator's name.
ModificationProperty[]	getMutations() Specifies the types of modifications that the algorithm makes.
java.lang.String	getShortName() Returns a short description of this obfuscator's name.
static void	main(java.lang.String[] args)
void	setConfigProperties(ConfigProperties props) Sets this obfuscator's configuration properties to the given properties.

Methods inherited from class sandmark.obfuscate.AppObfuscator

toString

Methods inherited from class sandmark.Algorithm

getPostprohibited, getPostrequisites, getPostsuggestions, getPreprohibited, getPrerequisites, getPresuggestions, getReferences

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.fub.bytecode.Constants

Constructor Detail

SignatureBludgeoner

public SignatureBludgeoner()

Method Detail

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

java.lang.Exception

apply

public void apply(ClassFileCollection cfc)
           throws java.lang.Exception

Bludgeons the method arguments in this ClassFileCollection's classes.

Specified by:

apply in class AppObfuscator

Parameters:

cfc -

java.lang.Exception

getAlgURL

public java.lang.String getAlgURL()

Returns the URL at which you can find information about this obfuscator.

Specified by:

getAlgURL in class Algorithm

Returns:

a URL to the help.html file for the algorithm

getAlgHTML

public java.lang.String getAlgHTML()

Returns an HTML description of this obfuscator.

Specified by:

getAlgHTML in class Algorithm

Returns:

an HTML formatted description of what the algorithm does.

setConfigProperties

public void setConfigProperties(ConfigProperties props)

Sets this obfuscator's configuration properties to the given properties.

Specified by:

setConfigProperties in class Algorithm

Parameters:

props - the ConfigProperties to use.

getConfigProperties

public ConfigProperties getConfigProperties()

Returns this obfuscator's configuration properties.

Specified by:

getConfigProperties in class Algorithm

Returns:

the parameters for this run of the algorithm

getLongName

public java.lang.String getLongName()

Returns a long description of this obfuscator's name.

Specified by:

getLongName in class Algorithm

Returns:

the long name for this algorithm

getShortName

public java.lang.String getShortName()

Returns a short description of this obfuscator's name.

Specified by:

getShortName in class Algorithm

Returns:

the short name for this algorithm

getDescription

public java.lang.String getDescription()

Description copied from class: Algorithm

Specifies what this algorithm does, briefly. This description is displayed to the user in the log of execution in Sandmark.

Overrides:

getDescription in class Algorithm

Returns:

a brief description of the algorithm

getAuthor

public java.lang.String getAuthor()

Description copied from class: Algorithm

Specifies the author of the algorithm.

Overrides:

getAuthor in class Algorithm

Returns:

the name of the author of the algorithm

getAuthorEmail

public java.lang.String getAuthorEmail()

Description copied from class: Algorithm

Specifies the email address author of the algorithm.

Overrides:

getAuthorEmail in class Algorithm

Returns:

the email address of the author of the algorithm

getMutations

public ModificationProperty[] getMutations()

Description copied from class: Algorithm

Specifies the types of modifications that the algorithm makes. For more information see ModificationProperty. NOTE: This method will be tagged abstract as of 06/05/2002; at that time, all Sandmark algorithms should provide their own implementation.

Overrides:

getMutations in class Algorithm

Returns:

a list of mutations that this algorithm may do on the code