public final class com.sun.crypto.provider.BlowfishKeyGenerator extends javax.crypto.KeyGeneratorSpi
minor version: 0
major version: 59
flags: flags: (0x0031) ACC_PUBLIC, ACC_FINAL, ACC_SUPER
this_class: com.sun.crypto.provider.BlowfishKeyGenerator
super_class: javax.crypto.KeyGeneratorSpi
{
private java.security.SecureRandom random;
descriptor: Ljava/security/SecureRandom;
flags: (0x0002) ACC_PRIVATE
private int keysize;
descriptor: I
flags: (0x0002) ACC_PRIVATE
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 0: aload 0
invokespecial javax.crypto.KeyGeneratorSpi.<init>:()V
1: aload 0
aconst_null
putfield com.sun.crypto.provider.BlowfishKeyGenerator.random:Ljava/security/SecureRandom;
2: aload 0
bipush 16
putfield com.sun.crypto.provider.BlowfishKeyGenerator.keysize:I
3: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lcom/sun/crypto/provider/BlowfishKeyGenerator;
protected void engineInit(java.security.SecureRandom);
descriptor: (Ljava/security/SecureRandom;)V
flags: (0x0004) ACC_PROTECTED
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: aload 0
aload 1
putfield com.sun.crypto.provider.BlowfishKeyGenerator.random:Ljava/security/SecureRandom;
1: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lcom/sun/crypto/provider/BlowfishKeyGenerator;
0 2 1 random Ljava/security/SecureRandom;
MethodParameters:
Name Flags
random
protected void engineInit(java.security.spec.AlgorithmParameterSpec, java.security.SecureRandom);
descriptor: (Ljava/security/spec/AlgorithmParameterSpec;Ljava/security/SecureRandom;)V
flags: (0x0004) ACC_PROTECTED
Code:
stack=3, locals=3, args_size=3
start local 0 start local 1 start local 2 0: new java.security.InvalidAlgorithmParameterException
dup
1: ldc "Blowfish key generation does not take any parameters"
2: invokespecial java.security.InvalidAlgorithmParameterException.<init>:(Ljava/lang/String;)V
athrow
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lcom/sun/crypto/provider/BlowfishKeyGenerator;
0 3 1 params Ljava/security/spec/AlgorithmParameterSpec;
0 3 2 random Ljava/security/SecureRandom;
Exceptions:
throws java.security.InvalidAlgorithmParameterException
MethodParameters:
Name Flags
params
random
protected void engineInit(int, java.security.SecureRandom);
descriptor: (ILjava/security/SecureRandom;)V
flags: (0x0004) ACC_PROTECTED
Code:
stack=3, locals=3, args_size=3
start local 0 start local 1 start local 2 0: iload 1
bipush 8
irem
ifne 1
iload 1
bipush 32
if_icmplt 1
iload 1
sipush 448
if_icmple 2
1: StackMap locals:
StackMap stack:
new java.security.InvalidParameterException
dup
ldc "Keysize must be multiple of 8, and can only range from 32 to 448 (inclusive)"
invokespecial java.security.InvalidParameterException.<init>:(Ljava/lang/String;)V
athrow
2: StackMap locals:
StackMap stack:
aload 0
iload 1
bipush 8
idiv
putfield com.sun.crypto.provider.BlowfishKeyGenerator.keysize:I
3: aload 0
aload 2
invokevirtual com.sun.crypto.provider.BlowfishKeyGenerator.engineInit:(Ljava/security/SecureRandom;)V
4: return
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lcom/sun/crypto/provider/BlowfishKeyGenerator;
0 5 1 keysize I
0 5 2 random Ljava/security/SecureRandom;
MethodParameters:
Name Flags
keysize
random
protected javax.crypto.SecretKey engineGenerateKey();
descriptor: ()Ljavax/crypto/SecretKey;
flags: (0x0004) ACC_PROTECTED
Code:
stack=4, locals=2, args_size=1
start local 0 0: aload 0
getfield com.sun.crypto.provider.BlowfishKeyGenerator.random:Ljava/security/SecureRandom;
ifnonnull 2
1: aload 0
invokestatic com.sun.crypto.provider.SunJCE.getRandom:()Ljava/security/SecureRandom;
putfield com.sun.crypto.provider.BlowfishKeyGenerator.random:Ljava/security/SecureRandom;
2: StackMap locals:
StackMap stack:
aload 0
getfield com.sun.crypto.provider.BlowfishKeyGenerator.keysize:I
newarray 8
astore 1
start local 1 3: aload 0
getfield com.sun.crypto.provider.BlowfishKeyGenerator.random:Ljava/security/SecureRandom;
aload 1
invokevirtual java.security.SecureRandom.nextBytes:([B)V
4: new javax.crypto.spec.SecretKeySpec
dup
aload 1
ldc "Blowfish"
invokespecial javax.crypto.spec.SecretKeySpec.<init>:([BLjava/lang/String;)V
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lcom/sun/crypto/provider/BlowfishKeyGenerator;
3 5 1 keyBytes [B
}
SourceFile: "BlowfishKeyGenerator.java"