public abstract class com.jcraft.jsch.jce.SignatureECDSAN implements com.jcraft.jsch.SignatureECDSA
minor version: 0
major version: 59
flags: flags: (0x0421) ACC_PUBLIC, ACC_SUPER, ACC_ABSTRACT
this_class: com.jcraft.jsch.jce.SignatureECDSAN
super_class: java.lang.Object
{
java.security.Signature signature;
descriptor: Ljava/security/Signature;
flags: (0x0000)
java.security.KeyFactory keyFactory;
descriptor: Ljava/security/KeyFactory;
flags: (0x0000)
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
start local 0 0: aload 0
invokespecial java.lang.Object.<init>:()V
return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
abstract java.lang.String getName();
descriptor: ()Ljava/lang/String;
flags: (0x0400) ACC_ABSTRACT
public void init();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=2, locals=3, args_size=1
start local 0 0: aload 0
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.getName:()Ljava/lang/String;
astore 1
start local 1 1: ldc "SHA256withECDSA"
astore 2
start local 2 2: aload 1
ldc "ecdsa-sha2-nistp384"
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifeq 3
ldc "SHA384withECDSA"
astore 2
goto 4
3: StackMap locals: java.lang.String java.lang.String
StackMap stack:
aload 1
ldc "ecdsa-sha2-nistp521"
invokevirtual java.lang.String.equals:(Ljava/lang/Object;)Z
ifeq 4
ldc "SHA512withECDSA"
astore 2
4: StackMap locals:
StackMap stack:
aload 0
aload 2
invokestatic java.security.Signature.getInstance:(Ljava/lang/String;)Ljava/security/Signature;
putfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
5: aload 0
ldc "EC"
invokestatic java.security.KeyFactory.getInstance:(Ljava/lang/String;)Ljava/security/KeyFactory;
putfield com.jcraft.jsch.jce.SignatureECDSAN.keyFactory:Ljava/security/KeyFactory;
6: return
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 7 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
1 7 1 name Ljava/lang/String;
2 7 2 foo Ljava/lang/String;
Exceptions:
throws java.lang.Exception
public void setPubKey(byte[], byte[]);
descriptor: ([B[B)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=7, locals=8, args_size=3
start local 0 start local 1 start local 2 0: aload 0
aload 1
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.insert0:([B)[B
astore 1
1: aload 0
aload 2
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.insert0:([B)[B
astore 2
2: ldc "secp256r1"
astore 3
start local 3 3: aload 1
arraylength
bipush 64
if_icmplt 4
ldc "secp521r1"
astore 3
goto 5
4: StackMap locals: java.lang.String
StackMap stack:
aload 1
arraylength
bipush 48
if_icmplt 5
ldc "secp384r1"
astore 3
5: StackMap locals:
StackMap stack:
ldc "EC"
invokestatic java.security.AlgorithmParameters.getInstance:(Ljava/lang/String;)Ljava/security/AlgorithmParameters;
astore 4
start local 4 6: aload 4
new java.security.spec.ECGenParameterSpec
dup
aload 3
invokespecial java.security.spec.ECGenParameterSpec.<init>:(Ljava/lang/String;)V
invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
7: aload 4
ldc Ljava/security/spec/ECParameterSpec;
invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
checkcast java.security.spec.ECParameterSpec
8: astore 5
start local 5 9: new java.security.spec.ECPoint
dup
new java.math.BigInteger
dup
iconst_1
aload 1
invokespecial java.math.BigInteger.<init>:(I[B)V
new java.math.BigInteger
dup
iconst_1
aload 2
invokespecial java.math.BigInteger.<init>:(I[B)V
invokespecial java.security.spec.ECPoint.<init>:(Ljava/math/BigInteger;Ljava/math/BigInteger;)V
astore 6
start local 6 10: aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.keyFactory:Ljava/security/KeyFactory;
new java.security.spec.ECPublicKeySpec
dup
aload 6
aload 5
invokespecial java.security.spec.ECPublicKeySpec.<init>:(Ljava/security/spec/ECPoint;Ljava/security/spec/ECParameterSpec;)V
invokevirtual java.security.KeyFactory.generatePublic:(Ljava/security/spec/KeySpec;)Ljava/security/PublicKey;
11: astore 7
start local 7 12: aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
aload 7
invokevirtual java.security.Signature.initVerify:(Ljava/security/PublicKey;)V
13: return
end local 7 end local 6 end local 5 end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 14 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 14 1 r [B
0 14 2 s [B
3 14 3 name Ljava/lang/String;
6 14 4 param Ljava/security/AlgorithmParameters;
9 14 5 ecparam Ljava/security/spec/ECParameterSpec;
10 14 6 w Ljava/security/spec/ECPoint;
12 14 7 pubKey Ljava/security/PublicKey;
Exceptions:
throws java.lang.Exception
MethodParameters:
Name Flags
r
s
public void setPrvKey(byte[]);
descriptor: ([B)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=7, args_size=2
start local 0 start local 1 0: aload 0
aload 1
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.insert0:([B)[B
astore 1
1: ldc "secp256r1"
astore 2
start local 2 2: aload 1
arraylength
bipush 64
if_icmplt 3
ldc "secp521r1"
astore 2
goto 4
3: StackMap locals: java.lang.String
StackMap stack:
aload 1
arraylength
bipush 48
if_icmplt 4
ldc "secp384r1"
astore 2
4: StackMap locals:
StackMap stack:
ldc "EC"
invokestatic java.security.AlgorithmParameters.getInstance:(Ljava/lang/String;)Ljava/security/AlgorithmParameters;
astore 3
start local 3 5: aload 3
new java.security.spec.ECGenParameterSpec
dup
aload 2
invokespecial java.security.spec.ECGenParameterSpec.<init>:(Ljava/lang/String;)V
invokevirtual java.security.AlgorithmParameters.init:(Ljava/security/spec/AlgorithmParameterSpec;)V
6: aload 3
ldc Ljava/security/spec/ECParameterSpec;
invokevirtual java.security.AlgorithmParameters.getParameterSpec:(Ljava/lang/Class;)Ljava/security/spec/AlgorithmParameterSpec;
checkcast java.security.spec.ECParameterSpec
7: astore 4
start local 4 8: new java.math.BigInteger
dup
iconst_1
aload 1
invokespecial java.math.BigInteger.<init>:(I[B)V
astore 5
start local 5 9: aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.keyFactory:Ljava/security/KeyFactory;
new java.security.spec.ECPrivateKeySpec
dup
aload 5
aload 4
invokespecial java.security.spec.ECPrivateKeySpec.<init>:(Ljava/math/BigInteger;Ljava/security/spec/ECParameterSpec;)V
invokevirtual java.security.KeyFactory.generatePrivate:(Ljava/security/spec/KeySpec;)Ljava/security/PrivateKey;
10: astore 6
start local 6 11: aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
aload 6
invokevirtual java.security.Signature.initSign:(Ljava/security/PrivateKey;)V
12: return
end local 6 end local 5 end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 13 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 13 1 d [B
2 13 2 name Ljava/lang/String;
5 13 3 param Ljava/security/AlgorithmParameters;
8 13 4 ecparam Ljava/security/spec/ECParameterSpec;
9 13 5 _d Ljava/math/BigInteger;
11 13 6 prvKey Ljava/security/PrivateKey;
Exceptions:
throws java.lang.Exception
MethodParameters:
Name Flags
d
public byte[] sign();
descriptor: ()[B
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=6, args_size=1
start local 0 0: aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
invokevirtual java.security.Signature.sign:()[B
astore 1
start local 1 1: aload 1
iconst_0
baload
bipush 48
if_icmpne 19
2: aload 1
iconst_1
baload
iconst_2
iadd
aload 1
arraylength
if_icmpeq 4
3: aload 1
iconst_1
baload
sipush 128
iand
ifeq 19
aload 1
iconst_2
baload
sipush 255
iand
iconst_3
iadd
aload 1
arraylength
if_icmpne 19
4: StackMap locals: byte[]
StackMap stack:
iconst_3
istore 2
start local 2 5: aload 1
iconst_1
baload
sipush 128
iand
ifeq 7
aload 1
iconst_2
baload
sipush 255
iand
iconst_3
iadd
aload 1
arraylength
if_icmpne 7
6: iconst_4
istore 2
7: StackMap locals: int
StackMap stack:
aload 1
iload 2
baload
newarray 8
astore 3
start local 3 8: aload 1
iload 2
iconst_2
iadd
aload 1
iload 2
baload
iadd
baload
newarray 8
astore 4
start local 4 9: aload 1
iload 2
iconst_1
iadd
aload 3
iconst_0
aload 3
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
10: aload 1
iload 2
iconst_3
iadd
aload 1
iload 2
baload
iadd
aload 4
iconst_0
aload 4
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
11: aload 0
aload 3
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.chop0:([B)[B
astore 3
12: aload 0
aload 4
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.chop0:([B)[B
astore 4
13: new com.jcraft.jsch.Buffer
dup
invokespecial com.jcraft.jsch.Buffer.<init>:()V
astore 5
start local 5 14: aload 5
aload 3
invokevirtual com.jcraft.jsch.Buffer.putMPInt:([B)V
15: aload 5
aload 4
invokevirtual com.jcraft.jsch.Buffer.putMPInt:([B)V
16: aload 5
invokevirtual com.jcraft.jsch.Buffer.getLength:()I
newarray 8
astore 1
17: aload 5
iconst_0
invokevirtual com.jcraft.jsch.Buffer.setOffSet:(I)V
18: aload 5
aload 1
invokevirtual com.jcraft.jsch.Buffer.getByte:([B)V
end local 5 end local 4 end local 3 end local 2 19: StackMap locals:
StackMap stack:
aload 1
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 20 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
1 20 1 sig [B
5 19 2 index I
8 19 3 r [B
9 19 4 s [B
14 19 5 buf Lcom/jcraft/jsch/Buffer;
Exceptions:
throws java.lang.Exception
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
getfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
aload 1
invokevirtual java.security.Signature.update:([B)V
1: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 2 1 foo [B
Exceptions:
throws java.lang.Exception
MethodParameters:
Name Flags
foo
public boolean verify(byte[]);
descriptor: ([B)Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=6, args_size=2
start local 0 start local 1 0: aload 1
iconst_0
baload
bipush 48
if_icmpne 3
1: aload 1
iconst_1
baload
iconst_2
iadd
aload 1
arraylength
if_icmpeq 33
2: aload 1
iconst_1
baload
sipush 128
iand
ifeq 3
aload 1
iconst_2
baload
sipush 255
iand
iconst_3
iadd
aload 1
arraylength
if_icmpeq 33
3: StackMap locals:
StackMap stack:
new com.jcraft.jsch.Buffer
dup
aload 1
invokespecial com.jcraft.jsch.Buffer.<init>:([B)V
astore 2
start local 2 4: aload 2
invokevirtual com.jcraft.jsch.Buffer.getString:()[B
pop
5: aload 2
invokevirtual com.jcraft.jsch.Buffer.getInt:()I
pop
6: aload 2
invokevirtual com.jcraft.jsch.Buffer.getMPInt:()[B
astore 3
start local 3 7: aload 2
invokevirtual com.jcraft.jsch.Buffer.getMPInt:()[B
astore 4
start local 4 8: aload 0
aload 3
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.insert0:([B)[B
astore 3
9: aload 0
aload 4
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.insert0:([B)[B
astore 4
10: aconst_null
astore 5
start local 5 11: aload 3
arraylength
bipush 64
if_icmpge 22
12: bipush 6
aload 3
arraylength
iadd
aload 4
arraylength
iadd
newarray 8
astore 5
13: aload 5
iconst_0
bipush 48
bastore
14: aload 5
iconst_1
iconst_4
aload 3
arraylength
iadd
aload 4
arraylength
iadd
i2b
bastore
15: aload 5
iconst_2
iconst_2
bastore
16: aload 5
iconst_3
aload 3
arraylength
i2b
bastore
17: aload 3
iconst_0
aload 5
iconst_4
aload 3
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
18: aload 5
aload 3
arraylength
iconst_4
iadd
iconst_2
bastore
19: aload 5
aload 3
arraylength
iconst_5
iadd
aload 4
arraylength
i2b
bastore
20: aload 4
iconst_0
aload 5
bipush 6
aload 3
arraylength
iadd
aload 4
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
21: goto 32
22: StackMap locals: com.jcraft.jsch.jce.SignatureECDSAN byte[] com.jcraft.jsch.Buffer byte[] byte[] byte[]
StackMap stack:
bipush 6
aload 3
arraylength
iadd
aload 4
arraylength
iadd
iconst_1
iadd
newarray 8
astore 5
23: aload 5
iconst_0
bipush 48
bastore
24: aload 5
iconst_1
bipush -127
bastore
25: aload 5
iconst_2
iconst_4
aload 3
arraylength
iadd
aload 4
arraylength
iadd
i2b
bastore
26: aload 5
iconst_3
iconst_2
bastore
27: aload 5
iconst_4
aload 3
arraylength
i2b
bastore
28: aload 3
iconst_0
aload 5
iconst_5
aload 3
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
29: aload 5
aload 3
arraylength
iconst_5
iadd
iconst_2
bastore
30: aload 5
aload 3
arraylength
bipush 6
iadd
aload 4
arraylength
i2b
bastore
31: aload 4
iconst_0
aload 5
bipush 7
aload 3
arraylength
iadd
aload 4
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
32: StackMap locals:
StackMap stack:
aload 5
astore 1
end local 5 end local 4 end local 3 end local 2 33: StackMap locals: com.jcraft.jsch.jce.SignatureECDSAN byte[]
StackMap stack:
aload 0
getfield com.jcraft.jsch.jce.SignatureECDSAN.signature:Ljava/security/Signature;
aload 1
invokevirtual java.security.Signature.verify:([B)Z
ireturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 34 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 34 1 sig [B
4 33 2 b Lcom/jcraft/jsch/Buffer;
7 33 3 r [B
8 33 4 s [B
11 33 5 asn1 [B
Exceptions:
throws java.lang.Exception
MethodParameters:
Name Flags
sig
private byte[] insert0(byte[]);
descriptor: ([B)[B
flags: (0x0002) ACC_PRIVATE
Code:
stack=5, locals=3, args_size=2
start local 0 start local 1 0: aload 1
iconst_0
baload
sipush 128
iand
ifne 1
aload 1
areturn
1: StackMap locals:
StackMap stack:
aload 1
arraylength
iconst_1
iadd
newarray 8
astore 2
start local 2 2: aload 1
iconst_0
aload 2
iconst_1
aload 1
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
3: aload 0
aload 1
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.bzero:([B)V
4: aload 2
areturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 5 1 buf [B
2 5 2 tmp [B
MethodParameters:
Name Flags
buf
private byte[] chop0(byte[]);
descriptor: ([B)[B
flags: (0x0002) ACC_PRIVATE
Code:
stack=5, locals=3, args_size=2
start local 0 start local 1 0: aload 1
iconst_0
baload
ifeq 1
aload 1
areturn
1: StackMap locals:
StackMap stack:
aload 1
arraylength
iconst_1
isub
newarray 8
astore 2
start local 2 2: aload 1
iconst_1
aload 2
iconst_0
aload 2
arraylength
invokestatic java.lang.System.arraycopy:(Ljava/lang/Object;ILjava/lang/Object;II)V
3: aload 0
aload 1
invokevirtual com.jcraft.jsch.jce.SignatureECDSAN.bzero:([B)V
4: aload 2
areturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 5 1 buf [B
2 5 2 tmp [B
MethodParameters:
Name Flags
buf
private void bzero(byte[]);
descriptor: ([B)V
flags: (0x0002) ACC_PRIVATE
Code:
stack=3, locals=3, args_size=2
start local 0 start local 1 0: iconst_0
istore 2
start local 2 1: goto 3
StackMap locals: int
StackMap stack:
2: aload 1
iload 2
iconst_0
bastore
iinc 2 1
StackMap locals:
StackMap stack:
3: iload 2
aload 1
arraylength
if_icmplt 2
end local 2 4: return
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 5 0 this Lcom/jcraft/jsch/jce/SignatureECDSAN;
0 5 1 buf [B
1 4 2 i I
MethodParameters:
Name Flags
buf
}
SourceFile: "SignatureECDSAN.java"