-
ISO9796d1Encoding
-
SIXTEEN: BigInteger
-
SIX: BigInteger
-
shadows: byte[]
-
inverse: byte[]
-
engine: AsymmetricBlockCipher
-
forEncryption: boolean
-
bitSize: int
-
padBits: int
-
modulus: BigInteger
-
<clinit>(): void
-
<init>(AsymmetricBlockCipher): void
-
getUnderlyingCipher(): AsymmetricBlockCipher
-
init(boolean, CipherParameters): void
-
getInputBlockSize(): int
-
getOutputBlockSize(): int
-
setPadBits(int): void
-
getPadBits(): int
-
processBlock(byte[], int, int): byte[]
-
encodeBlock(byte[], int, int): byte[]
-
decodeBlock(byte[], int, int): byte[]
-
convertOutputDecryptOnly(BigInteger): byte[]
-
public class org.bouncycastle.crypto.encodings.ISO9796d1Encoding implements org.bouncycastle.crypto.AsymmetricBlockCipher
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: org.bouncycastle.crypto.encodings.ISO9796d1Encoding
super_class: java.lang.Object
{
private static final java.math.BigInteger SIXTEEN;
descriptor: Ljava/math/BigInteger;
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static final java.math.BigInteger SIX;
descriptor: Ljava/math/BigInteger;
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
private static byte[] shadows;
descriptor: [B
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
private static byte[] inverse;
descriptor: [B
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
private org.bouncycastle.crypto.AsymmetricBlockCipher engine;
descriptor: Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
flags: (0x0002) ACC_PRIVATE
private boolean forEncryption;
descriptor: Z
flags: (0x0002) ACC_PRIVATE
private int bitSize;
descriptor: I
flags: (0x0002) ACC_PRIVATE
private int padBits;
descriptor: I
flags: (0x0002) ACC_PRIVATE
private java.math.BigInteger modulus;
descriptor: Ljava/math/BigInteger;
flags: (0x0002) ACC_PRIVATE
static void <clinit>();
descriptor: ()V
flags: (0x0008) ACC_STATIC
Code:
stack=4, locals=0, args_size=0
0: .line 21
ldc 16
invokestatic java.math.BigInteger.valueOf:(J)Ljava/math/BigInteger;
putstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIXTEEN:Ljava/math/BigInteger;
1: .line 22
ldc 6
invokestatic java.math.BigInteger.valueOf:(J)Ljava/math/BigInteger;
putstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIX:Ljava/math/BigInteger;
2: .line 24
bipush 16
newarray 8
dup
iconst_0
bipush 14
bastore
dup
iconst_1
iconst_3
bastore
dup
iconst_2
iconst_5
bastore
dup
iconst_3
bipush 8
bastore
dup
iconst_4
bipush 9
bastore
dup
iconst_5
iconst_4
bastore
dup
bipush 6
iconst_2
bastore
dup
bipush 7
bipush 15
bastore
dup
bipush 9
3: .line 25
bipush 13
bastore
dup
bipush 10
bipush 11
bastore
dup
bipush 11
bipush 6
bastore
dup
bipush 12
bipush 7
bastore
dup
bipush 13
bipush 10
bastore
dup
bipush 14
bipush 12
bastore
dup
bipush 15
iconst_1
bastore
4: .line 24
putstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
5: .line 26
bipush 16
newarray 8
dup
iconst_0
bipush 8
bastore
dup
iconst_1
bipush 15
bastore
dup
iconst_2
bipush 6
bastore
dup
iconst_3
iconst_1
bastore
dup
iconst_4
iconst_5
bastore
dup
iconst_5
iconst_2
bastore
dup
bipush 6
bipush 11
bastore
dup
bipush 7
bipush 12
bastore
dup
bipush 8
6: .line 27
iconst_3
bastore
dup
bipush 9
iconst_4
bastore
dup
bipush 10
bipush 13
bastore
dup
bipush 11
bipush 10
bastore
dup
bipush 12
bipush 14
bastore
dup
bipush 13
bipush 9
bastore
dup
bipush 15
bipush 7
bastore
7: .line 26
putstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.inverse:[B
8: .line 27
return
LocalVariableTable:
Start End Slot Name Signature
public void <init>(org.bouncycastle.crypto.AsymmetricBlockCipher);
descriptor: (Lorg/bouncycastle/crypto/AsymmetricBlockCipher;)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=2
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // org.bouncycastle.crypto.AsymmetricBlockCipher cipher
0: .line 35
aload 0 /* this */
invokespecial java.lang.Object.<init>:()V
1: .line 32
aload 0 /* this */
iconst_0
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.padBits:I
2: .line 38
aload 0 /* this */
aload 1 /* cipher */
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
3: .line 39
return
end local 1 // org.bouncycastle.crypto.AsymmetricBlockCipher cipher
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 4 1 cipher Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
MethodParameters:
Name Flags
cipher
public org.bouncycastle.crypto.AsymmetricBlockCipher getUnderlyingCipher();
descriptor: ()Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
0: .line 43
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
areturn
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
public void init(boolean, org.bouncycastle.crypto.CipherParameters);
descriptor: (ZLorg/bouncycastle/crypto/CipherParameters;)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=5, args_size=3
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // boolean forEncryption
start local 2 // org.bouncycastle.crypto.CipherParameters param
0: .line 50
aconst_null
astore 3 /* kParam */
start local 3 // org.bouncycastle.crypto.params.RSAKeyParameters kParam
1: .line 52
aload 2 /* param */
instanceof org.bouncycastle.crypto.params.ParametersWithRandom
ifeq 5
2: .line 54
aload 2 /* param */
checkcast org.bouncycastle.crypto.params.ParametersWithRandom
astore 4 /* rParam */
start local 4 // org.bouncycastle.crypto.params.ParametersWithRandom rParam
3: .line 56
aload 4 /* rParam */
invokevirtual org.bouncycastle.crypto.params.ParametersWithRandom.getParameters:()Lorg/bouncycastle/crypto/CipherParameters;
checkcast org.bouncycastle.crypto.params.RSAKeyParameters
astore 3 /* kParam */
end local 4 // org.bouncycastle.crypto.params.ParametersWithRandom rParam
4: .line 57
goto 6
5: .line 60
StackMap locals: org.bouncycastle.crypto.params.RSAKeyParameters
StackMap stack:
aload 2 /* param */
checkcast org.bouncycastle.crypto.params.RSAKeyParameters
astore 3 /* kParam */
6: .line 63
StackMap locals:
StackMap stack:
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
iload 1 /* forEncryption */
aload 2 /* param */
invokeinterface org.bouncycastle.crypto.AsymmetricBlockCipher.init:(ZLorg/bouncycastle/crypto/CipherParameters;)V
7: .line 65
aload 0 /* this */
aload 3 /* kParam */
invokevirtual org.bouncycastle.crypto.params.RSAKeyParameters.getModulus:()Ljava/math/BigInteger;
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.modulus:Ljava/math/BigInteger;
8: .line 66
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.modulus:Ljava/math/BigInteger;
invokevirtual java.math.BigInteger.bitLength:()I
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.bitSize:I
9: .line 68
aload 0 /* this */
iload 1 /* forEncryption */
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.forEncryption:Z
10: .line 69
return
end local 3 // org.bouncycastle.crypto.params.RSAKeyParameters kParam
end local 2 // org.bouncycastle.crypto.CipherParameters param
end local 1 // boolean forEncryption
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 11 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 11 1 forEncryption Z
0 11 2 param Lorg/bouncycastle/crypto/CipherParameters;
1 11 3 kParam Lorg/bouncycastle/crypto/params/RSAKeyParameters;
3 4 4 rParam Lorg/bouncycastle/crypto/params/ParametersWithRandom;
MethodParameters:
Name Flags
forEncryption
param
public int getInputBlockSize();
descriptor: ()I
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=1
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
0: .line 78
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
invokeinterface org.bouncycastle.crypto.AsymmetricBlockCipher.getInputBlockSize:()I
istore 1 /* baseBlockSize */
start local 1 // int baseBlockSize
1: .line 80
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.forEncryption:Z
ifeq 3
2: .line 82
iload 1 /* baseBlockSize */
iconst_1
iadd
iconst_2
idiv
ireturn
3: .line 86
StackMap locals: int
StackMap stack:
iload 1 /* baseBlockSize */
ireturn
end local 1 // int baseBlockSize
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
1 4 1 baseBlockSize I
public int getOutputBlockSize();
descriptor: ()I
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=2, args_size=1
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
0: .line 95
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
invokeinterface org.bouncycastle.crypto.AsymmetricBlockCipher.getOutputBlockSize:()I
istore 1 /* baseBlockSize */
start local 1 // int baseBlockSize
1: .line 97
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.forEncryption:Z
ifeq 3
2: .line 99
iload 1 /* baseBlockSize */
ireturn
3: .line 103
StackMap locals: int
StackMap stack:
iload 1 /* baseBlockSize */
iconst_1
iadd
iconst_2
idiv
ireturn
end local 1 // int baseBlockSize
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
1 4 1 baseBlockSize I
public void setPadBits(int);
descriptor: (I)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=2, args_size=2
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // int padBits
0: .line 114
iload 1 /* padBits */
bipush 7
if_icmple 2
1: .line 116
new java.lang.IllegalArgumentException
dup
ldc "padBits > 7"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
2: .line 119
StackMap locals:
StackMap stack:
aload 0 /* this */
iload 1 /* padBits */
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.padBits:I
3: .line 120
return
end local 1 // int padBits
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 4 1 padBits I
MethodParameters:
Name Flags
padBits
public int getPadBits();
descriptor: ()I
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
0: .line 127
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.padBits:I
ireturn
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
public byte[] processBlock(byte[], int, int);
descriptor: ([BII)[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=4, locals=4, args_size=4
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // byte[] in
start local 2 // int inOff
start local 3 // int inLen
0: .line 136
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.forEncryption:Z
ifeq 2
1: .line 138
aload 0 /* this */
aload 1 /* in */
iload 2 /* inOff */
iload 3 /* inLen */
invokevirtual org.bouncycastle.crypto.encodings.ISO9796d1Encoding.encodeBlock:([BII)[B
areturn
2: .line 142
StackMap locals:
StackMap stack:
aload 0 /* this */
aload 1 /* in */
iload 2 /* inOff */
iload 3 /* inLen */
invokevirtual org.bouncycastle.crypto.encodings.ISO9796d1Encoding.decodeBlock:([BII)[B
areturn
end local 3 // int inLen
end local 2 // int inOff
end local 1 // byte[] in
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 3 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 3 1 in [B
0 3 2 inOff I
0 3 3 inLen I
Exceptions:
throws org.bouncycastle.crypto.InvalidCipherTextException
MethodParameters:
Name Flags
in
inOff
inLen
private byte[] encodeBlock(byte[], int, int);
descriptor: ([BII)[B
flags: (0x0002) ACC_PRIVATE
Code:
stack=6, locals=10, args_size=4
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // byte[] in
start local 2 // int inOff
start local 3 // int inLen
0: .line 152
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.bitSize:I
bipush 7
iadd
bipush 8
idiv
newarray 8
astore 4 /* block */
start local 4 // byte[] block
1: .line 153
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.padBits:I
iconst_1
iadd
istore 5 /* r */
start local 5 // int r
2: .line 154
iload 3 /* inLen */
istore 6 /* z */
start local 6 // int z
3: .line 155
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.bitSize:I
bipush 13
iadd
bipush 16
idiv
istore 7 /* t */
start local 7 // int t
4: .line 157
iconst_0
istore 8 /* i */
start local 8 // int i
5: goto 13
6: .line 159
StackMap locals: org.bouncycastle.crypto.encodings.ISO9796d1Encoding byte[] int int byte[] int int int int
StackMap stack:
iload 8 /* i */
iload 7 /* t */
iload 6 /* z */
isub
if_icmple 11
7: .line 161
aload 1 /* in */
iload 2 /* inOff */
iload 3 /* inLen */
iadd
iload 7 /* t */
iload 8 /* i */
isub
isub
8: .line 162
aload 4 /* block */
aload 4 /* block */
arraylength
iload 7 /* t */
isub
iload 7 /* t */
iload 8 /* i */
isub
9: .line 161
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
10: .line 163
goto 12
11: .line 166
StackMap locals:
StackMap stack:
aload 1 /* in */
iload 2 /* inOff */
aload 4 /* block */
aload 4 /* block */
arraylength
iload 8 /* i */
iload 6 /* z */
iadd
isub
iload 6 /* z */
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
12: .line 157
StackMap locals:
StackMap stack:
iload 8 /* i */
iload 6 /* z */
iadd
istore 8 /* i */
StackMap locals:
StackMap stack:
13: iload 8 /* i */
iload 7 /* t */
if_icmplt 6
end local 8 // int i
14: .line 170
aload 4 /* block */
arraylength
iconst_2
iload 7 /* t */
imul
isub
istore 8 /* i */
start local 8 // int i
15: goto 22
16: .line 172
StackMap locals:
StackMap stack:
aload 4 /* block */
aload 4 /* block */
arraylength
iload 7 /* t */
isub
iload 8 /* i */
iconst_2
idiv
iadd
baload
istore 9 /* val */
start local 9 // byte val
17: .line 174
aload 4 /* block */
iload 8 /* i */
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
iload 9 /* val */
sipush 255
iand
iconst_4
iushr
baload
iconst_4
ishl
18: .line 175
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
iload 9 /* val */
bipush 15
iand
baload
ior
i2b
19: .line 174
bastore
20: .line 176
aload 4 /* block */
iload 8 /* i */
iconst_1
iadd
iload 9 /* val */
bastore
end local 9 // byte val
21: .line 170
iinc 8 /* i */ 2
StackMap locals:
StackMap stack:
22: iload 8 /* i */
aload 4 /* block */
arraylength
if_icmpne 16
end local 8 // int i
23: .line 179
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_2
iload 6 /* z */
imul
isub
dup2
baload
iload 5 /* r */
ixor
i2b
bastore
24: .line 180
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_1
isub
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_1
isub
baload
iconst_4
ishl
bipush 6
ior
i2b
bastore
25: .line 182
bipush 8
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.bitSize:I
iconst_1
isub
bipush 8
irem
isub
istore 8 /* maxBit */
start local 8 // int maxBit
26: .line 183
iconst_0
istore 9 /* offSet */
start local 9 // int offSet
27: .line 185
iload 8 /* maxBit */
bipush 8
if_icmpeq 31
28: .line 187
aload 4 /* block */
iconst_0
dup2
baload
sipush 255
iload 8 /* maxBit */
iushr
iand
i2b
bastore
29: .line 188
aload 4 /* block */
iconst_0
dup2
baload
sipush 128
iload 8 /* maxBit */
iushr
ior
i2b
bastore
30: .line 189
goto 34
31: .line 192
StackMap locals: int
StackMap stack:
aload 4 /* block */
iconst_0
iconst_0
bastore
32: .line 193
aload 4 /* block */
iconst_1
dup2
baload
sipush 128
ior
i2b
bastore
33: .line 194
iconst_1
istore 9 /* offSet */
34: .line 197
StackMap locals:
StackMap stack:
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
aload 4 /* block */
iload 9 /* offSet */
aload 4 /* block */
arraylength
iload 9 /* offSet */
isub
invokeinterface org.bouncycastle.crypto.AsymmetricBlockCipher.processBlock:([BII)[B
areturn
end local 9 // int offSet
end local 8 // int maxBit
end local 7 // int t
end local 6 // int z
end local 5 // int r
end local 4 // byte[] block
end local 3 // int inLen
end local 2 // int inOff
end local 1 // byte[] in
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 35 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 35 1 in [B
0 35 2 inOff I
0 35 3 inLen I
1 35 4 block [B
2 35 5 r I
3 35 6 z I
4 35 7 t I
5 14 8 i I
15 23 8 i I
17 21 9 val B
26 35 8 maxBit I
27 35 9 offSet I
Exceptions:
throws org.bouncycastle.crypto.InvalidCipherTextException
MethodParameters:
Name Flags
in
inOff
inLen
private byte[] decodeBlock(byte[], int, int);
descriptor: ([BII)[B
flags: (0x0002) ACC_PRIVATE
Code:
stack=7, locals=13, args_size=4
start local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
start local 1 // byte[] in
start local 2 // int inOff
start local 3 // int inLen
0: .line 209
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.engine:Lorg/bouncycastle/crypto/AsymmetricBlockCipher;
aload 1 /* in */
iload 2 /* inOff */
iload 3 /* inLen */
invokeinterface org.bouncycastle.crypto.AsymmetricBlockCipher.processBlock:([BII)[B
astore 4 /* block */
start local 4 // byte[] block
1: .line 210
iconst_1
istore 5 /* r */
start local 5 // int r
2: .line 211
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.bitSize:I
bipush 13
iadd
bipush 16
idiv
istore 6 /* t */
start local 6 // int t
3: .line 213
new java.math.BigInteger
dup
iconst_1
aload 4 /* block */
invokespecial java.math.BigInteger.<init>:(I[B)V
astore 7 /* iS */
start local 7 // java.math.BigInteger iS
4: .line 215
aload 7 /* iS */
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIXTEEN:Ljava/math/BigInteger;
invokevirtual java.math.BigInteger.mod:(Ljava/math/BigInteger;)Ljava/math/BigInteger;
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIX:Ljava/math/BigInteger;
invokevirtual java.math.BigInteger.equals:(Ljava/lang/Object;)Z
ifeq 7
5: .line 217
aload 7 /* iS */
astore 8 /* iR */
start local 8 // java.math.BigInteger iR
6: .line 218
goto 11
end local 8 // java.math.BigInteger iR
7: .line 219
StackMap locals: org.bouncycastle.crypto.encodings.ISO9796d1Encoding byte[] int int byte[] int int java.math.BigInteger
StackMap stack:
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.modulus:Ljava/math/BigInteger;
aload 7 /* iS */
invokevirtual java.math.BigInteger.subtract:(Ljava/math/BigInteger;)Ljava/math/BigInteger;
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIXTEEN:Ljava/math/BigInteger;
invokevirtual java.math.BigInteger.mod:(Ljava/math/BigInteger;)Ljava/math/BigInteger;
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.SIX:Ljava/math/BigInteger;
invokevirtual java.math.BigInteger.equals:(Ljava/lang/Object;)Z
ifeq 10
8: .line 221
aload 0 /* this */
getfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.modulus:Ljava/math/BigInteger;
aload 7 /* iS */
invokevirtual java.math.BigInteger.subtract:(Ljava/math/BigInteger;)Ljava/math/BigInteger;
astore 8 /* iR */
start local 8 // java.math.BigInteger iR
9: .line 222
goto 11
end local 8 // java.math.BigInteger iR
10: .line 225
StackMap locals:
StackMap stack:
new org.bouncycastle.crypto.InvalidCipherTextException
dup
ldc "resulting integer iS or (modulus - iS) is not congruent to 6 mod 16"
invokespecial org.bouncycastle.crypto.InvalidCipherTextException.<init>:(Ljava/lang/String;)V
athrow
start local 8 // java.math.BigInteger iR
11: .line 228
StackMap locals: java.math.BigInteger
StackMap stack:
aload 8 /* iR */
invokestatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.convertOutputDecryptOnly:(Ljava/math/BigInteger;)[B
astore 4 /* block */
12: .line 230
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_1
isub
baload
bipush 15
iand
bipush 6
if_icmpeq 14
13: .line 232
new org.bouncycastle.crypto.InvalidCipherTextException
dup
ldc "invalid forcing byte in block"
invokespecial org.bouncycastle.crypto.InvalidCipherTextException.<init>:(Ljava/lang/String;)V
athrow
14: .line 235
StackMap locals:
StackMap stack:
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_1
isub
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_1
isub
baload
sipush 255
iand
iconst_4
iushr
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.inverse:[B
aload 4 /* block */
aload 4 /* block */
arraylength
iconst_2
isub
baload
sipush 255
iand
iconst_4
ishr
baload
iconst_4
ishl
ior
i2b
bastore
15: .line 236
aload 4 /* block */
iconst_0
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
aload 4 /* block */
iconst_1
baload
sipush 255
iand
iconst_4
iushr
baload
iconst_4
ishl
16: .line 237
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
aload 4 /* block */
iconst_1
baload
bipush 15
iand
baload
ior
i2b
17: .line 236
bastore
18: .line 239
iconst_0
istore 9 /* boundaryFound */
start local 9 // boolean boundaryFound
19: .line 240
iconst_0
istore 10 /* boundary */
start local 10 // int boundary
20: .line 242
aload 4 /* block */
arraylength
iconst_1
isub
istore 11 /* i */
start local 11 // int i
21: goto 33
22: .line 244
StackMap locals: int int int
StackMap stack:
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
aload 4 /* block */
iload 11 /* i */
baload
sipush 255
iand
iconst_4
iushr
baload
iconst_4
ishl
23: .line 245
getstatic org.bouncycastle.crypto.encodings.ISO9796d1Encoding.shadows:[B
aload 4 /* block */
iload 11 /* i */
baload
bipush 15
iand
baload
24: .line 244
ior
istore 12 /* val */
start local 12 // int val
25: .line 247
aload 4 /* block */
iload 11 /* i */
iconst_1
isub
baload
iload 12 /* val */
ixor
sipush 255
iand
ifeq 32
26: .line 249
iload 9 /* boundaryFound */
ifne 31
27: .line 251
iconst_1
istore 9 /* boundaryFound */
28: .line 252
aload 4 /* block */
iload 11 /* i */
iconst_1
isub
baload
iload 12 /* val */
ixor
sipush 255
iand
istore 5 /* r */
29: .line 253
iload 11 /* i */
iconst_1
isub
istore 10 /* boundary */
30: .line 254
goto 32
31: .line 257
StackMap locals: int
StackMap stack:
new org.bouncycastle.crypto.InvalidCipherTextException
dup
ldc "invalid tsums in block"
invokespecial org.bouncycastle.crypto.InvalidCipherTextException.<init>:(Ljava/lang/String;)V
athrow
end local 12 // int val
32: .line 242
StackMap locals:
StackMap stack:
iinc 11 /* i */ -2
StackMap locals:
StackMap stack:
33: iload 11 /* i */
aload 4 /* block */
arraylength
iconst_2
iload 6 /* t */
imul
isub
if_icmpge 22
end local 11 // int i
34: .line 262
aload 4 /* block */
iload 10 /* boundary */
iconst_0
bastore
35: .line 264
aload 4 /* block */
arraylength
iload 10 /* boundary */
isub
iconst_2
idiv
newarray 8
astore 11 /* nblock */
start local 11 // byte[] nblock
36: .line 266
iconst_0
istore 12 /* i */
start local 12 // int i
37: goto 40
38: .line 268
StackMap locals: org.bouncycastle.crypto.encodings.ISO9796d1Encoding byte[] int int byte[] int int java.math.BigInteger java.math.BigInteger int int byte[] int
StackMap stack:
aload 11 /* nblock */
iload 12 /* i */
aload 4 /* block */
iconst_2
iload 12 /* i */
imul
iload 10 /* boundary */
iadd
iconst_1
iadd
baload
bastore
39: .line 266
iinc 12 /* i */ 1
StackMap locals:
StackMap stack:
40: iload 12 /* i */
aload 11 /* nblock */
arraylength
if_icmplt 38
end local 12 // int i
41: .line 271
aload 0 /* this */
iload 5 /* r */
iconst_1
isub
putfield org.bouncycastle.crypto.encodings.ISO9796d1Encoding.padBits:I
42: .line 273
aload 11 /* nblock */
areturn
end local 11 // byte[] nblock
end local 10 // int boundary
end local 9 // boolean boundaryFound
end local 8 // java.math.BigInteger iR
end local 7 // java.math.BigInteger iS
end local 6 // int t
end local 5 // int r
end local 4 // byte[] block
end local 3 // int inLen
end local 2 // int inOff
end local 1 // byte[] in
end local 0 // org.bouncycastle.crypto.encodings.ISO9796d1Encoding this
LocalVariableTable:
Start End Slot Name Signature
0 43 0 this Lorg/bouncycastle/crypto/encodings/ISO9796d1Encoding;
0 43 1 in [B
0 43 2 inOff I
0 43 3 inLen I
1 43 4 block [B
2 43 5 r I
3 43 6 t I
4 43 7 iS Ljava/math/BigInteger;
6 7 8 iR Ljava/math/BigInteger;
9 10 8 iR Ljava/math/BigInteger;
11 43 8 iR Ljava/math/BigInteger;
19 43 9 boundaryFound Z
20 43 10 boundary I
21 34 11 i I
25 32 12 val I
36 43 11 nblock [B
37 41 12 i I
Exceptions:
throws org.bouncycastle.crypto.InvalidCipherTextException
MethodParameters:
Name Flags
in
inOff
inLen
private static byte[] convertOutputDecryptOnly(java.math.BigInteger);
descriptor: (Ljava/math/BigInteger;)[B
flags: (0x000a) ACC_PRIVATE, ACC_STATIC
Code:
stack=5, locals=3, args_size=1
start local 0 // java.math.BigInteger result
0: .line 278
aload 0 /* result */
invokevirtual java.math.BigInteger.toByteArray:()[B
astore 1 /* output */
start local 1 // byte[] output
1: .line 279
aload 1 /* output */
iconst_0
baload
ifne 5
2: .line 281
aload 1 /* output */
arraylength
iconst_1
isub
newarray 8
astore 2 /* tmp */
start local 2 // byte[] tmp
3: .line 282
aload 1 /* output */
iconst_1
aload 2 /* tmp */
iconst_0
aload 2 /* tmp */
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
4: .line 283
aload 2 /* tmp */
areturn
end local 2 // byte[] tmp
5: .line 285
StackMap locals: byte[]
StackMap stack:
aload 1 /* output */
areturn
end local 1 // byte[] output
end local 0 // java.math.BigInteger result
LocalVariableTable:
Start End Slot Name Signature
0 6 0 result Ljava/math/BigInteger;
1 6 1 output [B
3 5 2 tmp [B
MethodParameters:
Name Flags
result
}
SourceFile: "ISO9796d1Encoding.java"