-
Grainv1Engine
-
STATE_SIZE: int
-
workingKey: byte[]
-
workingIV: byte[]
-
out: byte[]
-
lfsr: int[]
-
nfsr: int[]
-
output: int
-
index: int
-
initialised: boolean
-
<init>(): void
-
getAlgorithmName(): String
-
init(boolean, CipherParameters): void
-
initGrain(): void
-
getOutputNFSR(): int
-
getOutputLFSR(): int
-
getOutput(): int
-
shift(int[], int): int[]
-
setKey(byte[], byte[]): void
-
processBytes(byte[], int, int, byte[], int): void
-
reset(): void
-
oneRound(): void
-
returnByte(byte): byte
-
getKeyStream(): byte
-
public class org.bouncycastle.crypto.engines.Grainv1Engine implements org.bouncycastle.crypto.StreamCipher
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: org.bouncycastle.crypto.engines.Grainv1Engine
super_class: java.lang.Object
{
private static final int STATE_SIZE;
descriptor: I
flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
ConstantValue: 5
private byte[] workingKey;
descriptor: [B
flags: (0x0002) ACC_PRIVATE
private byte[] workingIV;
descriptor: [B
flags: (0x0002) ACC_PRIVATE
private byte[] out;
descriptor: [B
flags: (0x0002) ACC_PRIVATE
private int[] lfsr;
descriptor: [I
flags: (0x0002) ACC_PRIVATE
private int[] nfsr;
descriptor: [I
flags: (0x0002) ACC_PRIVATE
private int output;
descriptor: I
flags: (0x0002) ACC_PRIVATE
private int index;
descriptor: I
flags: (0x0002) ACC_PRIVATE
private boolean initialised;
descriptor: Z
flags: (0x0002) ACC_PRIVATE
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 13
aload 0 /* this */
invokespecial java.lang.Object.<init>:()V
1: .line 32
aload 0 /* this */
iconst_2
putfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
2: .line 34
aload 0 /* this */
iconst_0
putfield org.bouncycastle.crypto.engines.Grainv1Engine.initialised:Z
3: .line 13
return
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
public java.lang.String getAlgorithmName();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 38
ldc "Grain v1"
areturn
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
public void init(boolean, org.bouncycastle.crypto.CipherParameters);
descriptor: (ZLorg/bouncycastle/crypto/CipherParameters;)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=6, args_size=3
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
start local 1 // boolean forEncryption
start local 2 // org.bouncycastle.crypto.CipherParameters params
0: .line 55
aload 2 /* params */
instanceof org.bouncycastle.crypto.params.ParametersWithIV
ifne 4
1: .line 57
new java.lang.IllegalArgumentException
dup
2: .line 58
ldc "Grain v1 Init parameters must include an IV"
3: .line 57
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
4: .line 61
StackMap locals:
StackMap stack:
aload 2 /* params */
checkcast org.bouncycastle.crypto.params.ParametersWithIV
astore 3 /* ivParams */
start local 3 // org.bouncycastle.crypto.params.ParametersWithIV ivParams
5: .line 63
aload 3 /* ivParams */
invokevirtual org.bouncycastle.crypto.params.ParametersWithIV.getIV:()[B
astore 4 /* iv */
start local 4 // byte[] iv
6: .line 65
aload 4 /* iv */
ifnull 7
aload 4 /* iv */
arraylength
bipush 8
if_icmpeq 10
7: .line 67
StackMap locals: org.bouncycastle.crypto.params.ParametersWithIV byte[]
StackMap stack:
new java.lang.IllegalArgumentException
dup
8: .line 68
ldc "Grain v1 requires exactly 8 bytes of IV"
9: .line 67
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
10: .line 71
StackMap locals:
StackMap stack:
aload 3 /* ivParams */
invokevirtual org.bouncycastle.crypto.params.ParametersWithIV.getParameters:()Lorg/bouncycastle/crypto/CipherParameters;
instanceof org.bouncycastle.crypto.params.KeyParameter
ifne 14
11: .line 73
new java.lang.IllegalArgumentException
dup
12: .line 74
ldc "Grain v1 Init parameters must include a key"
13: .line 73
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
14: .line 77
StackMap locals:
StackMap stack:
aload 3 /* ivParams */
invokevirtual org.bouncycastle.crypto.params.ParametersWithIV.getParameters:()Lorg/bouncycastle/crypto/CipherParameters;
checkcast org.bouncycastle.crypto.params.KeyParameter
astore 5 /* key */
start local 5 // org.bouncycastle.crypto.params.KeyParameter key
15: .line 82
aload 0 /* this */
aload 5 /* key */
invokevirtual org.bouncycastle.crypto.params.KeyParameter.getKey:()[B
arraylength
newarray 8
putfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
16: .line 83
aload 0 /* this */
aload 5 /* key */
invokevirtual org.bouncycastle.crypto.params.KeyParameter.getKey:()[B
arraylength
newarray 8
putfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
17: .line 84
aload 0 /* this */
iconst_5
newarray 10
putfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
18: .line 85
aload 0 /* this */
iconst_5
newarray 10
putfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
19: .line 86
aload 0 /* this */
iconst_2
newarray 8
putfield org.bouncycastle.crypto.engines.Grainv1Engine.out:[B
20: .line 88
aload 4 /* iv */
iconst_0
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
iconst_0
aload 4 /* iv */
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
21: .line 89
aload 5 /* key */
invokevirtual org.bouncycastle.crypto.params.KeyParameter.getKey:()[B
iconst_0
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
iconst_0
aload 5 /* key */
invokevirtual org.bouncycastle.crypto.params.KeyParameter.getKey:()[B
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
22: .line 91
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.setKey:([B[B)V
23: .line 92
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.initGrain:()V
24: .line 93
return
end local 5 // org.bouncycastle.crypto.params.KeyParameter key
end local 4 // byte[] iv
end local 3 // org.bouncycastle.crypto.params.ParametersWithIV ivParams
end local 2 // org.bouncycastle.crypto.CipherParameters params
end local 1 // boolean forEncryption
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 25 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
0 25 1 forEncryption Z
0 25 2 params Lorg/bouncycastle/crypto/CipherParameters;
5 25 3 ivParams Lorg/bouncycastle/crypto/params/ParametersWithIV;
6 25 4 iv [B
15 25 5 key Lorg/bouncycastle/crypto/params/KeyParameter;
Exceptions:
throws java.lang.IllegalArgumentException
MethodParameters:
Name Flags
forEncryption
params
private void initGrain();
descriptor: ()V
flags: (0x0002) ACC_PRIVATE
Code:
stack=6, locals=2, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 100
iconst_0
istore 1 /* i */
start local 1 // int i
1: goto 6
2: .line 102
StackMap locals: int
StackMap stack:
aload 0 /* this */
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutput:()I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
3: .line 103
aload 0 /* this */
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutputNFSR:()I
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_0
iaload
ixor
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
ixor
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.shift:([II)[I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
4: .line 104
aload 0 /* this */
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutputLFSR:()I
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
ixor
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.shift:([II)[I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
5: .line 100
iinc 1 /* i */ 1
StackMap locals:
StackMap stack:
6: iload 1 /* i */
bipush 10
if_icmplt 2
end local 1 // int i
7: .line 106
aload 0 /* this */
iconst_1
putfield org.bouncycastle.crypto.engines.Grainv1Engine.initialised:Z
8: .line 107
return
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 9 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
1 7 1 i I
private int getOutputNFSR();
descriptor: ()I
flags: (0x0002) ACC_PRIVATE
Code:
stack=3, locals=14, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 116
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
istore 1 /* b0 */
start local 1 // int b0
1: .line 117
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
bipush 9
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 7
ishl
ior
istore 2 /* b9 */
start local 2 // int b9
2: .line 118
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
bipush 14
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
iconst_2
ishl
ior
istore 3 /* b14 */
start local 3 // int b14
3: .line 119
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
bipush 15
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
iconst_1
ishl
ior
istore 4 /* b15 */
start local 4 // int b15
4: .line 120
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
iconst_5
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
bipush 11
ishl
ior
istore 5 /* b21 */
start local 5 // int b21
5: .line 121
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 12
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
iconst_4
ishl
ior
istore 6 /* b28 */
start local 6 // int b28
6: .line 122
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
iconst_1
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 15
ishl
ior
istore 7 /* b33 */
start local 7 // int b33
7: .line 123
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
iconst_5
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 11
ishl
ior
istore 8 /* b37 */
start local 8 // int b37
8: .line 124
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
bipush 13
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
iconst_3
ishl
ior
istore 9 /* b45 */
start local 9 // int b45
9: .line 125
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
iconst_4
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
bipush 12
ishl
ior
istore 10 /* b52 */
start local 10 // int b52
10: .line 126
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 12
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
iconst_4
ishl
ior
istore 11 /* b60 */
start local 11 // int b60
11: .line 127
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 14
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
iconst_2
ishl
ior
istore 12 /* b62 */
start local 12 // int b62
12: .line 128
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 15
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
iconst_1
ishl
ior
istore 13 /* b63 */
start local 13 // int b63
13: .line 130
iload 12 /* b62 */
iload 11 /* b60 */
ixor
iload 10 /* b52 */
ixor
iload 9 /* b45 */
ixor
iload 8 /* b37 */
ixor
iload 7 /* b33 */
ixor
iload 6 /* b28 */
ixor
iload 5 /* b21 */
ixor
iload 3 /* b14 */
ixor
14: .line 131
iload 2 /* b9 */
15: .line 130
ixor
16: .line 131
iload 1 /* b0 */
17: .line 130
ixor
18: .line 131
iload 13 /* b63 */
iload 11 /* b60 */
iand
19: .line 130
ixor
20: .line 131
iload 8 /* b37 */
iload 7 /* b33 */
iand
21: .line 130
ixor
22: .line 131
iload 4 /* b15 */
iload 2 /* b9 */
iand
23: .line 130
ixor
24: .line 131
iload 11 /* b60 */
iload 10 /* b52 */
iand
iload 9 /* b45 */
iand
25: .line 130
ixor
26: .line 132
iload 7 /* b33 */
iload 6 /* b28 */
iand
iload 5 /* b21 */
iand
27: .line 130
ixor
28: .line 132
iload 13 /* b63 */
iload 9 /* b45 */
iand
iload 6 /* b28 */
iand
iload 2 /* b9 */
iand
29: .line 130
ixor
30: .line 132
iload 11 /* b60 */
iload 10 /* b52 */
iand
iload 8 /* b37 */
iand
31: .line 133
iload 7 /* b33 */
32: .line 132
iand
33: .line 130
ixor
34: .line 133
iload 13 /* b63 */
iload 11 /* b60 */
iand
iload 5 /* b21 */
iand
iload 4 /* b15 */
iand
35: .line 130
ixor
36: .line 133
iload 13 /* b63 */
iload 11 /* b60 */
iand
iload 10 /* b52 */
iand
iload 9 /* b45 */
iand
iload 8 /* b37 */
iand
37: .line 130
ixor
38: .line 134
iload 7 /* b33 */
iload 6 /* b28 */
iand
iload 5 /* b21 */
iand
iload 4 /* b15 */
iand
iload 2 /* b9 */
iand
39: .line 130
ixor
40: .line 134
iload 10 /* b52 */
iload 9 /* b45 */
iand
iload 8 /* b37 */
iand
iload 7 /* b33 */
iand
iload 6 /* b28 */
iand
41: .line 135
iload 5 /* b21 */
42: .line 134
iand
43: .line 130
ixor
44: .line 135
ldc 65535
45: .line 130
iand
ireturn
end local 13 // int b63
end local 12 // int b62
end local 11 // int b60
end local 10 // int b52
end local 9 // int b45
end local 8 // int b37
end local 7 // int b33
end local 6 // int b28
end local 5 // int b21
end local 4 // int b15
end local 3 // int b14
end local 2 // int b9
end local 1 // int b0
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 46 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
1 46 1 b0 I
2 46 2 b9 I
3 46 3 b14 I
4 46 4 b15 I
5 46 5 b21 I
6 46 6 b28 I
7 46 7 b33 I
8 46 8 b37 I
9 46 9 b45 I
10 46 10 b52 I
11 46 11 b60 I
12 46 12 b62 I
13 46 13 b63 I
private int getOutputLFSR();
descriptor: ()I
flags: (0x0002) ACC_PRIVATE
Code:
stack=3, locals=7, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 145
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_0
iaload
istore 1 /* s0 */
start local 1 // int s0
1: .line 146
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_0
iaload
bipush 13
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_1
iaload
iconst_3
ishl
ior
istore 2 /* s13 */
start local 2 // int s13
2: .line 147
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_1
iaload
bipush 7
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_2
iaload
bipush 9
ishl
ior
istore 3 /* s23 */
start local 3 // int s23
3: .line 148
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_2
iaload
bipush 6
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_3
iaload
bipush 10
ishl
ior
istore 4 /* s38 */
start local 4 // int s38
4: .line 149
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_3
iaload
iconst_3
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_4
iaload
bipush 13
ishl
ior
istore 5 /* s51 */
start local 5 // int s51
5: .line 150
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_3
iaload
bipush 14
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_4
iaload
iconst_2
ishl
ior
istore 6 /* s62 */
start local 6 // int s62
6: .line 152
iload 1 /* s0 */
iload 2 /* s13 */
ixor
iload 3 /* s23 */
ixor
iload 4 /* s38 */
ixor
iload 5 /* s51 */
ixor
iload 6 /* s62 */
ixor
ldc 65535
iand
ireturn
end local 6 // int s62
end local 5 // int s51
end local 4 // int s38
end local 3 // int s23
end local 2 // int s13
end local 1 // int s0
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 7 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
1 7 1 s0 I
2 7 2 s13 I
3 7 3 s23 I
4 7 4 s38 I
5 7 5 s51 I
6 7 6 s62 I
private int getOutput();
descriptor: ()I
flags: (0x0002) ACC_PRIVATE
Code:
stack=3, locals=13, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 162
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
iconst_1
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 15
ishl
ior
istore 1 /* b1 */
start local 1 // int b1
1: .line 163
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
iconst_2
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 14
ishl
ior
istore 2 /* b2 */
start local 2 // int b2
2: .line 164
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
iconst_4
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 12
ishl
ior
istore 3 /* b4 */
start local 3 // int b4
3: .line 165
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_0
iaload
bipush 10
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 6
ishl
ior
istore 4 /* b10 */
start local 4 // int b10
4: .line 166
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_1
iaload
bipush 15
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
iconst_1
ishl
ior
istore 5 /* b31 */
start local 5 // int b31
5: .line 167
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_2
iaload
bipush 11
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
iconst_5
ishl
ior
istore 6 /* b43 */
start local 6 // int b43
6: .line 168
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 8
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
bipush 8
ishl
ior
istore 7 /* b56 */
start local 7 // int b56
7: .line 169
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_3
iaload
bipush 15
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iconst_4
iaload
iconst_1
ishl
ior
istore 8 /* b63 */
start local 8 // int b63
8: .line 170
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_0
iaload
iconst_3
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_1
iaload
bipush 13
ishl
ior
istore 9 /* s3 */
start local 9 // int s3
9: .line 171
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_1
iaload
bipush 9
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_2
iaload
bipush 7
ishl
ior
istore 10 /* s25 */
start local 10 // int s25
10: .line 172
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_2
iaload
bipush 14
iushr
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_3
iaload
iconst_2
ishl
ior
istore 11 /* s46 */
start local 11 // int s46
11: .line 173
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_4
iaload
istore 12 /* s64 */
start local 12 // int s64
12: .line 175
iload 10 /* s25 */
iload 8 /* b63 */
ixor
iload 9 /* s3 */
iload 12 /* s64 */
iand
ixor
iload 11 /* s46 */
iload 12 /* s64 */
iand
ixor
iload 12 /* s64 */
iload 8 /* b63 */
iand
ixor
iload 9 /* s3 */
13: .line 176
iload 10 /* s25 */
iand
iload 11 /* s46 */
iand
14: .line 175
ixor
15: .line 176
iload 9 /* s3 */
iload 11 /* s46 */
iand
iload 12 /* s64 */
iand
16: .line 175
ixor
17: .line 176
iload 9 /* s3 */
iload 11 /* s46 */
iand
iload 8 /* b63 */
iand
18: .line 175
ixor
19: .line 176
iload 10 /* s25 */
iload 11 /* s46 */
iand
iload 8 /* b63 */
iand
20: .line 175
ixor
21: .line 176
iload 11 /* s46 */
22: .line 177
iload 12 /* s64 */
23: .line 176
iand
24: .line 177
iload 8 /* b63 */
25: .line 176
iand
26: .line 175
ixor
27: .line 177
iload 1 /* b1 */
28: .line 175
ixor
29: .line 177
iload 2 /* b2 */
30: .line 175
ixor
31: .line 177
iload 3 /* b4 */
32: .line 175
ixor
33: .line 177
iload 4 /* b10 */
34: .line 175
ixor
35: .line 177
iload 5 /* b31 */
36: .line 175
ixor
37: .line 177
iload 6 /* b43 */
38: .line 175
ixor
39: .line 177
iload 7 /* b56 */
40: .line 175
ixor
41: .line 177
ldc 65535
42: .line 175
iand
ireturn
end local 12 // int s64
end local 11 // int s46
end local 10 // int s25
end local 9 // int s3
end local 8 // int b63
end local 7 // int b56
end local 6 // int b43
end local 5 // int b31
end local 4 // int b10
end local 3 // int b4
end local 2 // int b2
end local 1 // int b1
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 43 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
1 43 1 b1 I
2 43 2 b2 I
3 43 3 b4 I
4 43 4 b10 I
5 43 5 b31 I
6 43 6 b43 I
7 43 7 b56 I
8 43 8 b63 I
9 43 9 s3 I
10 43 10 s25 I
11 43 11 s46 I
12 43 12 s64 I
private int[] shift(int[], int);
descriptor: ([II)[I
flags: (0x0002) ACC_PRIVATE
Code:
stack=4, locals=3, args_size=3
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
start local 1 // int[] array
start local 2 // int val
0: .line 189
aload 1 /* array */
iconst_0
aload 1 /* array */
iconst_1
iaload
iastore
1: .line 190
aload 1 /* array */
iconst_1
aload 1 /* array */
iconst_2
iaload
iastore
2: .line 191
aload 1 /* array */
iconst_2
aload 1 /* array */
iconst_3
iaload
iastore
3: .line 192
aload 1 /* array */
iconst_3
aload 1 /* array */
iconst_4
iaload
iastore
4: .line 193
aload 1 /* array */
iconst_4
iload 2 /* val */
iastore
5: .line 195
aload 1 /* array */
areturn
end local 2 // int val
end local 1 // int[] array
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 6 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
0 6 1 array [I
0 6 2 val I
MethodParameters:
Name Flags
array
val
private void setKey(byte[], byte[]);
descriptor: ([B[B)V
flags: (0x0002) ACC_PRIVATE
Code:
stack=5, locals=5, args_size=3
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
start local 1 // byte[] keyBytes
start local 2 // byte[] ivBytes
0: .line 206
aload 2 /* ivBytes */
bipush 8
iconst_m1
bastore
1: .line 207
aload 2 /* ivBytes */
bipush 9
iconst_m1
bastore
2: .line 208
aload 0 /* this */
aload 1 /* keyBytes */
putfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
3: .line 209
aload 0 /* this */
aload 2 /* ivBytes */
putfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
4: .line 214
iconst_0
istore 3 /* j */
start local 3 // int j
5: .line 215
iconst_0
istore 4 /* i */
start local 4 // int i
6: goto 11
7: .line 217
StackMap locals: int int
StackMap stack:
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
iload 4 /* i */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
iload 3 /* j */
iconst_1
iadd
baload
bipush 8
ishl
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
iload 3 /* j */
baload
sipush 255
iand
ior
ldc 65535
iand
iastore
8: .line 218
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iload 4 /* i */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
iload 3 /* j */
iconst_1
iadd
baload
bipush 8
ishl
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
iload 3 /* j */
baload
sipush 255
iand
ior
ldc 65535
iand
iastore
9: .line 219
iinc 3 /* j */ 2
10: .line 215
iinc 4 /* i */ 1
StackMap locals:
StackMap stack:
11: iload 4 /* i */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
arraylength
if_icmplt 7
end local 4 // int i
12: .line 221
return
end local 3 // int j
end local 2 // byte[] ivBytes
end local 1 // byte[] keyBytes
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 13 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
0 13 1 keyBytes [B
0 13 2 ivBytes [B
5 13 3 j I
6 12 4 i I
MethodParameters:
Name Flags
keyBytes
ivBytes
public void processBytes(byte[], int, int, byte[], int);
descriptor: ([BII[BI)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=7, args_size=6
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
start local 1 // byte[] in
start local 2 // int inOff
start local 3 // int len
start local 4 // byte[] out
start local 5 // int outOff
0: .line 227
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.initialised:Z
ifne 4
1: .line 229
new java.lang.IllegalStateException
dup
new java.lang.StringBuilder
dup
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getAlgorithmName:()Ljava/lang/String;
invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
2: .line 230
ldc " not initialised"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
3: .line 229
invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
athrow
4: .line 233
StackMap locals:
StackMap stack:
iload 2 /* inOff */
iload 3 /* len */
iadd
aload 1 /* in */
arraylength
if_icmple 6
5: .line 235
new org.bouncycastle.crypto.DataLengthException
dup
ldc "input buffer too short"
invokespecial org.bouncycastle.crypto.DataLengthException.<init>:(Ljava/lang/String;)V
athrow
6: .line 238
StackMap locals:
StackMap stack:
iload 5 /* outOff */
iload 3 /* len */
iadd
aload 4 /* out */
arraylength
if_icmple 8
7: .line 240
new org.bouncycastle.crypto.DataLengthException
dup
ldc "output buffer too short"
invokespecial org.bouncycastle.crypto.DataLengthException.<init>:(Ljava/lang/String;)V
athrow
8: .line 243
StackMap locals:
StackMap stack:
iconst_0
istore 6 /* i */
start local 6 // int i
9: goto 12
10: .line 245
StackMap locals: int
StackMap stack:
aload 4 /* out */
iload 5 /* outOff */
iload 6 /* i */
iadd
aload 1 /* in */
iload 2 /* inOff */
iload 6 /* i */
iadd
baload
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getKeyStream:()B
ixor
i2b
bastore
11: .line 243
iinc 6 /* i */ 1
StackMap locals:
StackMap stack:
12: iload 6 /* i */
iload 3 /* len */
if_icmplt 10
end local 6 // int i
13: .line 247
return
end local 5 // int outOff
end local 4 // byte[] out
end local 3 // int len
end local 2 // int inOff
end local 1 // byte[] in
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 14 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
0 14 1 in [B
0 14 2 inOff I
0 14 3 len I
0 14 4 out [B
0 14 5 outOff I
9 13 6 i I
Exceptions:
throws org.bouncycastle.crypto.DataLengthException
MethodParameters:
Name Flags
in
inOff
len
out
outOff
public void reset();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 251
aload 0 /* this */
iconst_2
putfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
1: .line 252
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingKey:[B
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.workingIV:[B
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.setKey:([B[B)V
2: .line 253
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.initGrain:()V
3: .line 254
return
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
private void oneRound();
descriptor: ()V
flags: (0x0002) ACC_PRIVATE
Code:
stack=6, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 261
aload 0 /* this */
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutput:()I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
1: .line 262
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.out:[B
iconst_0
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
i2b
bastore
2: .line 263
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.out:[B
iconst_1
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.output:I
bipush 8
ishr
i2b
bastore
3: .line 265
aload 0 /* this */
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutputNFSR:()I
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
iconst_0
iaload
ixor
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.shift:([II)[I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.nfsr:[I
4: .line 266
aload 0 /* this */
aload 0 /* this */
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getOutputLFSR:()I
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.shift:([II)[I
putfield org.bouncycastle.crypto.engines.Grainv1Engine.lfsr:[I
5: .line 267
return
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 6 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
public byte returnByte(byte);
descriptor: (B)B
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=2, args_size=2
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
start local 1 // byte in
0: .line 271
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.initialised:Z
ifne 4
1: .line 273
new java.lang.IllegalStateException
dup
new java.lang.StringBuilder
dup
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getAlgorithmName:()Ljava/lang/String;
invokestatic java.lang.String.valueOf:(Ljava/lang/Object;)Ljava/lang/String;
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
2: .line 274
ldc " not initialised"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
3: .line 273
invokespecial java.lang.IllegalStateException.<init>:(Ljava/lang/String;)V
athrow
4: .line 276
StackMap locals:
StackMap stack:
iload 1 /* in */
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.getKeyStream:()B
ixor
i2b
ireturn
end local 1 // byte in
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
0 5 1 in B
MethodParameters:
Name Flags
in
private byte getKeyStream();
descriptor: ()B
flags: (0x0002) ACC_PRIVATE
Code:
stack=5, locals=1, args_size=1
start local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
0: .line 281
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
iconst_1
if_icmple 3
1: .line 283
aload 0 /* this */
invokevirtual org.bouncycastle.crypto.engines.Grainv1Engine.oneRound:()V
2: .line 284
aload 0 /* this */
iconst_0
putfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
3: .line 286
StackMap locals:
StackMap stack:
aload 0 /* this */
getfield org.bouncycastle.crypto.engines.Grainv1Engine.out:[B
aload 0 /* this */
dup
getfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
dup_x1
iconst_1
iadd
putfield org.bouncycastle.crypto.engines.Grainv1Engine.index:I
baload
ireturn
end local 0 // org.bouncycastle.crypto.engines.Grainv1Engine this
LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/bouncycastle/crypto/engines/Grainv1Engine;
}
SourceFile: "Grainv1Engine.java"