public class org.springframework.security.crypto.scrypt.SCryptPasswordEncoder implements org.springframework.security.crypto.password.PasswordEncoder
minor version: 0
major version: 59
flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
this_class: org.springframework.security.crypto.scrypt.SCryptPasswordEncoder
super_class: java.lang.Object
{
private final org.apache.commons.logging.Log logger;
descriptor: Lorg/apache/commons/logging/Log;
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final int cpuCost;
descriptor: I
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final int memoryCost;
descriptor: I
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final int parallelization;
descriptor: I
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final int keyLength;
descriptor: I
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
private final org.springframework.security.crypto.keygen.BytesKeyGenerator saltGenerator;
descriptor: Lorg/springframework/security/crypto/keygen/BytesKeyGenerator;
flags: (0x0012) ACC_PRIVATE, ACC_FINAL
public void <init>();
descriptor: ()V
flags: (0x0001) ACC_PUBLIC
Code:
stack=6, locals=1, args_size=1
start local 0 0: aload 0
sipush 16384
bipush 8
iconst_1
bipush 32
bipush 64
invokespecial org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.<init>:(IIIII)V
1: return
end local 0 LocalVariableTable:
Start End Slot Name Signature
0 2 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
public void <init>(int, int, int, int, int);
descriptor: (IIIII)V
flags: (0x0001) ACC_PUBLIC
Code:
stack=5, locals=7, args_size=6
start local 0 start local 1 start local 2 start local 3 start local 4 start local 5 0: aload 0
invokespecial java.lang.Object.<init>:()V
1: aload 0
aload 0
invokevirtual java.lang.Object.getClass:()Ljava/lang/Class;
invokestatic org.apache.commons.logging.LogFactory.getLog:(Ljava/lang/Class;)Lorg/apache/commons/logging/Log;
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.logger:Lorg/apache/commons/logging/Log;
2: iload 1
iconst_1
if_icmpgt 4
3: new java.lang.IllegalArgumentException
dup
ldc "Cpu cost parameter must be > 1."
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
4: StackMap locals: org.springframework.security.crypto.scrypt.SCryptPasswordEncoder int int int int int
StackMap stack:
iload 2
iconst_1
if_icmpne 6
iload 1
ldc 65536
if_icmple 6
5: new java.lang.IllegalArgumentException
dup
ldc "Cpu cost parameter must be > 1 and < 65536."
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
6: StackMap locals:
StackMap stack:
iload 2
iconst_1
if_icmpge 8
7: new java.lang.IllegalArgumentException
dup
ldc "Memory cost must be >= 1."
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
8: StackMap locals:
StackMap stack:
ldc 2147483647
sipush 128
iload 2
imul
bipush 8
imul
idiv
istore 6
start local 6 9: iload 3
iconst_1
if_icmplt 10
iload 3
iload 6
if_icmple 13
10: StackMap locals: int
StackMap stack:
new java.lang.IllegalArgumentException
dup
new java.lang.StringBuilder
dup
ldc "Parallelisation parameter p must be >= 1 and <= "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
iload 6
invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
11: ldc " (based on block size r of "
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
iload 2
invokevirtual java.lang.StringBuilder.append:(I)Ljava/lang/StringBuilder;
ldc ")"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
12: invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
13: StackMap locals:
StackMap stack:
iload 4
iconst_1
if_icmplt 14
iload 4
ldc 2147483647
if_icmple 15
14: StackMap locals:
StackMap stack:
new java.lang.IllegalArgumentException
dup
ldc "Key length must be >= 1 and <= 2147483647"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
15: StackMap locals:
StackMap stack:
iload 5
iconst_1
if_icmplt 16
iload 5
ldc 2147483647
if_icmple 17
16: StackMap locals:
StackMap stack:
new java.lang.IllegalArgumentException
dup
ldc "Salt length must be >= 1 and <= 2147483647"
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
17: StackMap locals:
StackMap stack:
aload 0
iload 1
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.cpuCost:I
18: aload 0
iload 2
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.memoryCost:I
19: aload 0
iload 3
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.parallelization:I
20: aload 0
iload 4
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.keyLength:I
21: aload 0
iload 5
invokestatic org.springframework.security.crypto.keygen.KeyGenerators.secureRandom:(I)Lorg/springframework/security/crypto/keygen/BytesKeyGenerator;
putfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.saltGenerator:Lorg/springframework/security/crypto/keygen/BytesKeyGenerator;
22: 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 23 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 23 1 cpuCost I
0 23 2 memoryCost I
0 23 3 parallelization I
0 23 4 keyLength I
0 23 5 saltLength I
9 23 6 maxParallel I
MethodParameters:
Name Flags
cpuCost
memoryCost
parallelization
keyLength
saltLength
public java.lang.String encode(java.lang.CharSequence);
descriptor: (Ljava/lang/CharSequence;)Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=2, args_size=2
start local 0 start local 1 0: aload 0
aload 1
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.saltGenerator:Lorg/springframework/security/crypto/keygen/BytesKeyGenerator;
invokeinterface org.springframework.security.crypto.keygen.BytesKeyGenerator.generateKey:()[B
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.digest:(Ljava/lang/CharSequence;[B)Ljava/lang/String;
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 1 1 rawPassword Ljava/lang/CharSequence;
MethodParameters:
Name Flags
rawPassword
public boolean matches(java.lang.CharSequence, java.lang.String);
descriptor: (Ljava/lang/CharSequence;Ljava/lang/String;)Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=3, locals=3, args_size=3
start local 0 start local 1 start local 2 0: aload 2
ifnull 1
aload 2
invokevirtual java.lang.String.length:()I
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.keyLength:I
if_icmpge 3
1: StackMap locals:
StackMap stack:
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.logger:Lorg/apache/commons/logging/Log;
ldc "Empty encoded password"
invokeinterface org.apache.commons.logging.Log.warn:(Ljava/lang/Object;)V
2: iconst_0
ireturn
3: StackMap locals:
StackMap stack:
aload 0
aload 1
aload 2
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.decodeAndCheckMatches:(Ljava/lang/CharSequence;Ljava/lang/String;)Z
ireturn
end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 4 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 4 1 rawPassword Ljava/lang/CharSequence;
0 4 2 encodedPassword Ljava/lang/String;
MethodParameters:
Name Flags
rawPassword
encodedPassword
public boolean upgradeEncoding(java.lang.String);
descriptor: (Ljava/lang/String;)Z
flags: (0x0001) ACC_PUBLIC
Code:
stack=6, locals=8, args_size=2
start local 0 start local 1 0: aload 1
ifnull 1
aload 1
invokevirtual java.lang.String.isEmpty:()Z
ifeq 2
1: StackMap locals:
StackMap stack:
iconst_0
ireturn
2: StackMap locals:
StackMap stack:
aload 1
ldc "\\$"
invokevirtual java.lang.String.split:(Ljava/lang/String;)[Ljava/lang/String;
astore 2
start local 2 3: aload 2
arraylength
iconst_4
if_icmpeq 5
4: new java.lang.IllegalArgumentException
dup
new java.lang.StringBuilder
dup
ldc "Encoded password does not look like SCrypt: "
invokespecial java.lang.StringBuilder.<init>:(Ljava/lang/String;)V
aload 1
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
invokespecial java.lang.IllegalArgumentException.<init>:(Ljava/lang/String;)V
athrow
5: StackMap locals: java.lang.String[]
StackMap stack:
aload 2
iconst_1
aaload
bipush 16
invokestatic java.lang.Long.parseLong:(Ljava/lang/String;I)J
lstore 3
start local 3 6: ldc 2.0
lload 3
bipush 16
lshr
ldc 65535
land
l2d
invokestatic java.lang.Math.pow:(DD)D
d2i
istore 5
start local 5 7: lload 3
l2i
bipush 8
ishr
sipush 255
iand
istore 6
start local 6 8: lload 3
l2i
sipush 255
iand
istore 7
start local 7 9: iload 5
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.cpuCost:I
if_icmplt 10
iload 6
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.memoryCost:I
if_icmplt 10
iload 7
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.parallelization:I
if_icmplt 10
iconst_0
ireturn
StackMap locals: org.springframework.security.crypto.scrypt.SCryptPasswordEncoder java.lang.String java.lang.String[] long int int int
StackMap stack:
10: iconst_1
ireturn
end local 7 end local 6 end local 5 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 11 1 encodedPassword Ljava/lang/String;
3 11 2 parts [Ljava/lang/String;
6 11 3 params J
7 11 5 cpuCost I
8 11 6 memoryCost I
9 11 7 parallelization I
MethodParameters:
Name Flags
encodedPassword
private boolean decodeAndCheckMatches(java.lang.CharSequence, java.lang.String);
descriptor: (Ljava/lang/CharSequence;Ljava/lang/String;)Z
flags: (0x0002) ACC_PRIVATE
Code:
stack=6, locals=12, args_size=3
start local 0 start local 1 start local 2 0: aload 2
ldc "\\$"
invokevirtual java.lang.String.split:(Ljava/lang/String;)[Ljava/lang/String;
astore 3
start local 3 1: aload 3
arraylength
iconst_4
if_icmpeq 3
2: iconst_0
ireturn
3: StackMap locals: java.lang.String[]
StackMap stack:
aload 3
iconst_1
aaload
bipush 16
invokestatic java.lang.Long.parseLong:(Ljava/lang/String;I)J
lstore 4
start local 4 4: aload 0
aload 3
iconst_2
aaload
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.decodePart:(Ljava/lang/String;)[B
astore 6
start local 6 5: aload 0
aload 3
iconst_3
aaload
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.decodePart:(Ljava/lang/String;)[B
astore 7
start local 7 6: ldc 2.0
lload 4
bipush 16
lshr
ldc 65535
land
l2d
invokestatic java.lang.Math.pow:(DD)D
d2i
istore 8
start local 8 7: lload 4
l2i
bipush 8
ishr
sipush 255
iand
istore 9
start local 9 8: lload 4
l2i
sipush 255
iand
istore 10
start local 10 9: aload 1
invokestatic org.springframework.security.crypto.codec.Utf8.encode:(Ljava/lang/CharSequence;)[B
aload 6
iload 8
iload 9
iload 10
10: aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.keyLength:I
11: invokestatic org.bouncycastle.crypto.generators.SCrypt.generate:([B[BIIII)[B
astore 11
start local 11 12: aload 7
aload 11
invokestatic java.security.MessageDigest.isEqual:([B[B)Z
ireturn
end local 11 end local 10 end local 9 end local 8 end local 7 end local 6 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 Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 13 1 rawPassword Ljava/lang/CharSequence;
0 13 2 encodedPassword Ljava/lang/String;
1 13 3 parts [Ljava/lang/String;
4 13 4 params J
5 13 6 salt [B
6 13 7 derived [B
7 13 8 cpuCost I
8 13 9 memoryCost I
9 13 10 parallelization I
12 13 11 generated [B
MethodParameters:
Name Flags
rawPassword
encodedPassword
private java.lang.String digest(java.lang.CharSequence, byte[]);
descriptor: (Ljava/lang/CharSequence;[B)Ljava/lang/String;
flags: (0x0002) ACC_PRIVATE
Code:
stack=6, locals=6, args_size=3
start local 0 start local 1 start local 2 0: aload 1
invokestatic org.springframework.security.crypto.codec.Utf8.encode:(Ljava/lang/CharSequence;)[B
aload 2
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.cpuCost:I
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.memoryCost:I
1: aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.parallelization:I
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.keyLength:I
2: invokestatic org.bouncycastle.crypto.generators.SCrypt.generate:([B[BIIII)[B
astore 3
start local 3 3: aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.cpuCost:I
i2d
invokestatic java.lang.Math.log:(D)D
ldc 2.0
invokestatic java.lang.Math.log:(D)D
ddiv
d2i
bipush 16
ishl
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.memoryCost:I
bipush 8
ishl
ior
aload 0
getfield org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.parallelization:I
ior
i2l
4: bipush 16
5: invokestatic java.lang.Long.toString:(JI)Ljava/lang/String;
astore 4
start local 4 6: new java.lang.StringBuilder
dup
aload 2
arraylength
aload 3
arraylength
iadd
iconst_2
imul
invokespecial java.lang.StringBuilder.<init>:(I)V
astore 5
start local 5 7: aload 5
ldc "$"
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
aload 4
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
bipush 36
invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
pop
8: aload 5
aload 0
aload 2
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.encodePart:([B)Ljava/lang/String;
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
bipush 36
invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
pop
9: aload 5
aload 0
aload 3
invokevirtual org.springframework.security.crypto.scrypt.SCryptPasswordEncoder.encodePart:([B)Ljava/lang/String;
invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
pop
10: aload 5
invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
areturn
end local 5 end local 4 end local 3 end local 2 end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 11 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 11 1 rawPassword Ljava/lang/CharSequence;
0 11 2 salt [B
3 11 3 derived [B
6 11 4 params Ljava/lang/String;
7 11 5 sb Ljava/lang/StringBuilder;
MethodParameters:
Name Flags
rawPassword
salt
private byte[] decodePart(java.lang.String);
descriptor: (Ljava/lang/String;)[B
flags: (0x0002) ACC_PRIVATE
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: invokestatic java.util.Base64.getDecoder:()Ljava/util/Base64$Decoder;
aload 1
invokestatic org.springframework.security.crypto.codec.Utf8.encode:(Ljava/lang/CharSequence;)[B
invokevirtual java.util.Base64$Decoder.decode:([B)[B
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 1 1 part Ljava/lang/String;
MethodParameters:
Name Flags
part
private java.lang.String encodePart(byte[]);
descriptor: ([B)Ljava/lang/String;
flags: (0x0002) ACC_PRIVATE
Code:
stack=2, locals=2, args_size=2
start local 0 start local 1 0: invokestatic java.util.Base64.getEncoder:()Ljava/util/Base64$Encoder;
aload 1
invokevirtual java.util.Base64$Encoder.encode:([B)[B
invokestatic org.springframework.security.crypto.codec.Utf8.decode:([B)Ljava/lang/String;
areturn
end local 1 end local 0 LocalVariableTable:
Start End Slot Name Signature
0 1 0 this Lorg/springframework/security/crypto/scrypt/SCryptPasswordEncoder;
0 1 1 part [B
MethodParameters:
Name Flags
part
}
SourceFile: "SCryptPasswordEncoder.java"
InnerClasses:
public Decoder = java.util.Base64$Decoder of java.util.Base64
public Encoder = java.util.Base64$Encoder of java.util.Base64