public abstract class java.security.MessageDigest extends java.security.MessageDigestSpi
minor version: 0
major version: 59
flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
this_class: java.security.MessageDigest
super_class: java.security.MessageDigestSpi
{
private java.lang.String algorithm;
descriptor: Ljava/lang/String;
flags: (0x0002) ACC_PRIVATE
private static final int INITIAL;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 0
private static final int IN_PROGRESS;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 1
private int state;
descriptor: I
flags: (0x0002) ACC_PRIVATE
private java.security.Provider provider;
descriptor: Ljava/security/Provider;
flags: (0x0002) ACC_PRIVATE
protected void <init>(java.lang.String);
descriptor: (Ljava/lang/String;)V
flags: (0x0004) ACC_PROTECTED
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 0
invokespecial java.security.MessageDigestSpi.<init>:()V
1: aload 0
iconst_0
putfield java.security.MessageDigest.state:I
2: aload 0
aload 1
putfield java.security.MessageDigest.algorithm:Ljava/lang/String;
3: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Ljava/security/MessageDigest;
0 4 1 algorithm Ljava/lang/String;
MethodParameters:
Name Flags
algorithm
public static java.security.MessageDigest getInstance(java.lang.String);
descriptor: (Ljava/lang/String;)Ljava/security/MessageDigest;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=5, locals=3, args_size=1
start local 0 0: aload 0
ldc "MessageDigest"
1: aconst_null
2: invokestatic java.security.Security.getImpl:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)[Ljava/lang/Object;
astore 1
start local 1 3: aload 1
iconst_0
aaload
instanceof java.security.MessageDigest
ifeq 8
4: aload 1
iconst_0
aaload
checkcast java.security.MessageDigest
astore 2
start local 2 5: aload 2
aload 1
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
6: aload 2
7: areturn
end local 2 8: StackMap locals: java.lang.Object[]
StackMap stack:
new java.security.MessageDigest$Delegate
dup
aload 1
iconst_0
aaload
checkcast java.security.MessageDigestSpi
aload 0
invokespecial java.security.MessageDigest$Delegate.<init>:(Ljava/security/MessageDigestSpi;Ljava/lang/String;)V
9: astore 2
start local 2 10: aload 2
aload 1
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
11: aload 2
12: areturn
end local 2 end local 1 13: StackMap locals: java.lang.String
StackMap stack: java.security.NoSuchProviderException
pop
14: new java.security.NoSuchAlgorithmException
dup
new java.lang.StringBuilder
dup
aload 0
invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
ldc " not found"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokespecial java.security.NoSuchAlgorithmException.<init>:(Ljava/lang/String;)V
athrow
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 15 0 algorithm Ljava/lang/String;
3 13 1 objs [Ljava/lang/Object;
5 8 2 md Ljava/security/MessageDigest;
10 13 2 delegate Ljava/security/MessageDigest;
Exception table:
from to target type
0 7 13 Class java.security.NoSuchProviderException
8 12 13 Class java.security.NoSuchProviderException
Exceptions:
throws java.security.NoSuchAlgorithmException
MethodParameters:
Name Flags
algorithm
public static java.security.MessageDigest getInstance(java.lang.String, java.lang.String);
descriptor: (Ljava/lang/String;Ljava/lang/String;)Ljava/security/MessageDigest;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=4, args_size=2
start local 0 start local 1 0: aload 1
ifnull 1
aload 1
invokevirtual java.lang.String.length:()I
ifne 2
1: StackMap locals:
StackMap stack:
new java.lang.IllegalArgumentException
dup
ldc "missing provider"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 0
ldc "MessageDigest"
aload 1
invokestatic java.security.Security.getImpl:(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)[Ljava/lang/Object;
astore 2
start local 2 3: aload 2
iconst_0
aaload
instanceof java.security.MessageDigest
ifeq 7
4: aload 2
iconst_0
aaload
checkcast java.security.MessageDigest
astore 3
start local 3 5: aload 3
aload 2
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
6: aload 3
areturn
end local 3 7: StackMap locals: java.lang.Object[]
StackMap stack:
new java.security.MessageDigest$Delegate
dup
aload 2
iconst_0
aaload
checkcast java.security.MessageDigestSpi
aload 0
invokespecial java.security.MessageDigest$Delegate.<init>:(Ljava/security/MessageDigestSpi;Ljava/lang/String;)V
8: astore 3
start local 3 9: aload 3
aload 2
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
10: aload 3
areturn
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 algorithm Ljava/lang/String;
0 11 1 provider Ljava/lang/String;
3 11 2 objs [Ljava/lang/Object;
5 7 3 md Ljava/security/MessageDigest;
9 11 3 delegate Ljava/security/MessageDigest;
Exceptions:
throws java.security.NoSuchAlgorithmException, java.security.NoSuchProviderException
MethodParameters:
Name Flags
algorithm
provider
public static java.security.MessageDigest getInstance(java.lang.String, java.security.Provider);
descriptor: (Ljava/lang/String;Ljava/security/Provider;)Ljava/security/MessageDigest;
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=4, args_size=2
start local 0 start local 1 0: aload 1
ifnonnull 2
1: new java.lang.IllegalArgumentException
dup
ldc "missing provider"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 0
ldc "MessageDigest"
aload 1
invokestatic java.security.Security.getImpl:(Ljava/lang/String;Ljava/lang/String;Ljava/security/Provider;)[Ljava/lang/Object;
astore 2
start local 2 3: aload 2
iconst_0
aaload
instanceof java.security.MessageDigest
ifeq 7
4: aload 2
iconst_0
aaload
checkcast java.security.MessageDigest
astore 3
start local 3 5: aload 3
aload 2
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
6: aload 3
areturn
end local 3 7: StackMap locals: java.lang.Object[]
StackMap stack:
new java.security.MessageDigest$Delegate
dup
aload 2
iconst_0
aaload
checkcast java.security.MessageDigestSpi
aload 0
invokespecial java.security.MessageDigest$Delegate.<init>:(Ljava/security/MessageDigestSpi;Ljava/lang/String;)V
8: astore 3
start local 3 9: aload 3
aload 2
iconst_1
aaload
checkcast java.security.Provider
putfield java.security.MessageDigest.provider:Ljava/security/Provider;
10: aload 3
areturn
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 algorithm Ljava/lang/String;
0 11 1 provider Ljava/security/Provider;
3 11 2 objs [Ljava/lang/Object;
5 7 3 md Ljava/security/MessageDigest;
9 11 3 delegate Ljava/security/MessageDigest;
Exceptions:
throws java.security.NoSuchAlgorithmException
MethodParameters:
Name Flags
algorithm
provider
public final java.security.Provider getProvider();
descriptor: ()Ljava/security/Provider;
flags: (0x0011) ACC_PUBLIC, ACC_FINAL
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
getfield java.security.MessageDigest.provider:Ljava/security/Provider;
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Ljava/security/MessageDigest;
public void update(byte);
descriptor: (B)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 0
iload 1
invokevirtual java.security.MessageDigest.engineUpdate:(B)V
1: aload 0
iconst_1
putfield java.security.MessageDigest.state:I
2: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/security/MessageDigest;
0 3 1 input B
MethodParameters:
Name Flags
input
public void update(byte[], int, int);
descriptor: ([BII)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=4, args_size=4
start local 0 start local 1 start local 2 start local 3 0: aload 1
ifnonnull 2
1: new java.lang.IllegalArgumentException
dup
ldc "No input buffer given"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 1
arraylength
iload 2
isub
iload 3
if_icmpge 4
3: new java.lang.IllegalArgumentException
dup
ldc "Input buffer too short"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
4: StackMap locals:
StackMap stack:
aload 0
aload 1
iload 2
iload 3
invokevirtual java.security.MessageDigest.engineUpdate:([BII)V
5: aload 0
iconst_1
putfield java.security.MessageDigest.state:I
6: return
end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 7 0 this Ljava/security/MessageDigest;
0 7 1 input [B
0 7 2 offset I
0 7 3 len I
MethodParameters:
Name Flags
input
offset
len
public void update(byte[]);
descriptor: ([B)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=2, args_size=2
start local 0 start local 1 0: aload 0
aload 1
iconst_0
aload 1
arraylength
invokevirtual java.security.MessageDigest.engineUpdate:([BII)V
1: aload 0
iconst_1
putfield java.security.MessageDigest.state:I
2: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/security/MessageDigest;
0 3 1 input [B
MethodParameters:
Name Flags
input
public final void update(java.nio.ByteBuffer);
descriptor: (Ljava/nio/ByteBuffer;)V
flags: (0x0011) ACC_PUBLIC, ACC_FINAL
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 1
ifnonnull 2
1: new java.lang.NullPointerException
dup
invokespecial java.lang.NullPointerException.<init>:()V
athrow
2: StackMap locals:
StackMap stack:
aload 0
aload 1
invokevirtual java.security.MessageDigest.engineUpdate:(Ljava/nio/ByteBuffer;)V
3: aload 0
iconst_1
putfield java.security.MessageDigest.state:I
4: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Ljava/security/MessageDigest;
0 5 1 input Ljava/nio/ByteBuffer;
MethodParameters:
Name Flags
input
public byte[] digest();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=1
start local 0 0: aload 0
invokevirtual java.security.MessageDigest.engineDigest:()[B
astore 1
start local 1 1: aload 0
iconst_0
putfield java.security.MessageDigest.state:I
2: aload 1
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/security/MessageDigest;
1 3 1 result [B
public int digest(byte[], int, int);
descriptor: ([BII)I
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=5, args_size=4
start local 0 start local 1 start local 2 start local 3 0: aload 1
ifnonnull 2
1: new java.lang.IllegalArgumentException
dup
ldc "No output buffer given"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 1
arraylength
iload 2
isub
iload 3
if_icmpge 6
3: new java.lang.IllegalArgumentException
dup
4: ldc "Output buffer too small for specified offset and length"
5: invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
6: StackMap locals:
StackMap stack:
aload 0
aload 1
iload 2
iload 3
invokevirtual java.security.MessageDigest.engineDigest:([BII)I
istore 4
start local 4 7: aload 0
iconst_0
putfield java.security.MessageDigest.state:I
8: iload 4
ireturn
end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 9 0 this Ljava/security/MessageDigest;
0 9 1 buf [B
0 9 2 offset I
0 9 3 len I
7 9 4 numBytes I
Exceptions:
throws java.security.DigestException
MethodParameters:
Name Flags
buf
offset
len
public byte[] digest(byte[]);
descriptor: ([B)[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 0
aload 1
invokevirtual java.security.MessageDigest.update:([B)V
1: aload 0
invokevirtual java.security.MessageDigest.digest:()[B
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Ljava/security/MessageDigest;
0 2 1 input [B
MethodParameters:
Name Flags
input
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=3, args_size=1
start local 0 0: new java.io.ByteArrayOutputStream
dup
invokespecial java.io.ByteArrayOutputStream.<init>:()V
astore 1
start local 1 1: new java.io.PrintStream
dup
aload 1
invokespecial java.io.PrintStream.<init>:(Ljava/io/OutputStream;)V
astore 2
start local 2 2: aload 2
new java.lang.StringBuilder
dup
aload 0
getfield java.security.MessageDigest.algorithm:Ljava/lang/String;
invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
ldc " Message Digest from "
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
aload 0
getfield java.security.MessageDigest.provider:Ljava/security/Provider;
invokevirtual java.security.Provider.getName:()Ljava/lang/String;
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
ldc ", "
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokevirtual java.io.PrintStream.print:(Ljava/lang/String;)V
3: aload 0
getfield java.security.MessageDigest.state:I
tableswitch { // 0 - 1
0: 4
1: 6
default: 7
}
4: StackMap locals: java.io.ByteArrayOutputStream java.io.PrintStream
StackMap stack:
aload 2
ldc "<initialized>"
invokevirtual java.io.PrintStream.print:(Ljava/lang/String;)V
5: goto 7
6: StackMap locals:
StackMap stack:
aload 2
ldc "<in progress>"
invokevirtual java.io.PrintStream.print:(Ljava/lang/String;)V
7: StackMap locals:
StackMap stack:
aload 2
invokevirtual java.io.PrintStream.println:()V
8: aload 1
invokevirtual java.io.ByteArrayOutputStream.toString:()Ljava/lang/String;
areturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 9 0 this Ljava/security/MessageDigest;
1 9 1 baos Ljava/io/ByteArrayOutputStream;
2 9 2 p Ljava/io/PrintStream;
public static boolean isEqual(byte[], byte[]);
descriptor: ([B[B)Z
flags: (0x0009) ACC_PUBLIC, ACC_STATIC
Code:
stack=4, locals=4, args_size=2
start local 0 start local 1 0: aload 0
aload 1
if_acmpne 1
iconst_1
ireturn
1: StackMap locals:
StackMap stack:
aload 0
ifnull 2
aload 1
ifnonnull 3
2: StackMap locals:
StackMap stack:
iconst_0
ireturn
3: StackMap locals:
StackMap stack:
aload 0
arraylength
aload 1
arraylength
if_icmpeq 5
4: iconst_0
ireturn
5: StackMap locals:
StackMap stack:
iconst_0
istore 2
start local 2 6: iconst_0
istore 3
start local 3 7: goto 10
8: StackMap locals: int int
StackMap stack:
iload 2
aload 0
iload 3
baload
aload 1
iload 3
baload
ixor
ior
istore 2
9: iinc 3 1
StackMap locals:
StackMap stack:
10: iload 3
aload 0
arraylength
if_icmplt 8
end local 3 11: iload 2
ifne 12
iconst_1
ireturn
StackMap locals:
StackMap stack:
12: iconst_0
ireturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 13 0 digesta [B
0 13 1 digestb [B
6 13 2 result I
7 11 3 i I
MethodParameters:
Name Flags
digesta
digestb
public void reset();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
invokevirtual java.security.MessageDigest.engineReset:()V
1: aload 0
iconst_0
putfield java.security.MessageDigest.state:I
2: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/security/MessageDigest;
public final java.lang.String getAlgorithm();
descriptor: ()Ljava/lang/String;
flags: (0x0011) ACC_PUBLIC, ACC_FINAL
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
getfield java.security.MessageDigest.algorithm:Ljava/lang/String;
areturn
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Ljava/security/MessageDigest;
public final int getDigestLength();
descriptor: ()I
flags: (0x0011) ACC_PUBLIC, ACC_FINAL
Code:
stack=1, locals=4, args_size=1
start local 0 0: aload 0
invokevirtual java.security.MessageDigest.engineGetDigestLength:()I
istore 1
start local 1 1: iload 1
ifne 8
2: aload 0
invokevirtual java.security.MessageDigest.clone:()Ljava/lang/Object;
checkcast java.security.MessageDigest
astore 2
start local 2 3: aload 2
invokevirtual java.security.MessageDigest.digest:()[B
astore 3
start local 3 4: aload 3
arraylength
5: ireturn
end local 3 end local 2 6: StackMap locals: java.security.MessageDigest int
StackMap stack: java.lang.CloneNotSupportedException
pop
7: iload 1
ireturn
8: StackMap locals:
StackMap stack:
iload 1
ireturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 9 0 this Ljava/security/MessageDigest;
1 9 1 digestLen I
3 6 2 md Ljava/security/MessageDigest;
4 6 3 digest [B
Exception table:
from to target type
2 5 6 Class java.lang.CloneNotSupportedException
public java.lang.Object clone();
descriptor: ()Ljava/lang/Object;
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
instanceof java.lang.Cloneable
ifeq 2
1: aload 0
invokespecial java.security.MessageDigestSpi.clone:()Ljava/lang/Object;
areturn
2: StackMap locals:
StackMap stack:
new java.lang.CloneNotSupportedException
dup
invokespecial java.lang.CloneNotSupportedException.<init>:()V
athrow
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Ljava/security/MessageDigest;
Exceptions:
throws java.lang.CloneNotSupportedException
}
SourceFile: "MessageDigest.java"
NestMembers:
java.security.MessageDigest$Delegate
InnerClasses:
Delegate = java.security.MessageDigest$Delegate of java.security.MessageDigest