public class io.vertx.ext.auth.impl.hash.PBKDF2 implements io.vertx.ext.auth.HashingAlgorithm
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.vertx.ext.auth.impl.hash.PBKDF2
  super_class: java.lang.Object
{
  private static final int DEFAULT_ITERATIONS;
    descriptor: I
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    ConstantValue: 10000

  private static final java.util.Base64$Decoder B64DEC;
    descriptor: Ljava/util/Base64$Decoder;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.Base64$Encoder B64ENC;
    descriptor: Ljava/util/Base64$Encoder;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL

  private static final java.util.Set<java.lang.String> DEFAULT_CONFIG;
    descriptor: Ljava/util/Set;
    flags: (0x001a) ACC_PRIVATE, ACC_STATIC, ACC_FINAL
    Signature: Ljava/util/Set<Ljava/lang/String;>;

  private final javax.crypto.SecretKeyFactory skf;
    descriptor: Ljavax/crypto/SecretKeyFactory;
    flags: (0x0012) ACC_PRIVATE, ACC_FINAL

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=1, locals=0, args_size=0
         0: .line 37
            invokestatic java.util.Base64.getDecoder:()Ljava/util/Base64$Decoder;
            putstatic io.vertx.ext.auth.impl.hash.PBKDF2.B64DEC:Ljava/util/Base64$Decoder;
         1: .line 38
            invokestatic java.util.Base64.getEncoder:()Ljava/util/Base64$Encoder;
            invokevirtual java.util.Base64$Encoder.withoutPadding:()Ljava/util/Base64$Encoder;
            putstatic io.vertx.ext.auth.impl.hash.PBKDF2.B64ENC:Ljava/util/Base64$Encoder;
         2: .line 40
            ldc "it"
            invokestatic java.util.Collections.singleton:(Ljava/lang/Object;)Ljava/util/Set;
            putstatic io.vertx.ext.auth.impl.hash.PBKDF2.DEFAULT_CONFIG:Ljava/util/Set;
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=4, locals=2, args_size=1
        start local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
         0: .line 44
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 46
            aload 0 /* this */
            ldc "PBKDF2WithHmacSHA512"
            invokestatic javax.crypto.SecretKeyFactory.getInstance:(Ljava/lang/String;)Ljavax/crypto/SecretKeyFactory;
            putfield io.vertx.ext.auth.impl.hash.PBKDF2.skf:Ljavax/crypto/SecretKeyFactory;
         2: .line 47
            goto 5
      StackMap locals: io.vertx.ext.auth.impl.hash.PBKDF2
      StackMap stack: java.security.NoSuchAlgorithmException
         3: astore 1 /* nsae */
        start local 1 // java.security.NoSuchAlgorithmException nsae
         4: .line 48
            new java.lang.RuntimeException
            dup
            ldc "PBKDF2 is not available"
            aload 1 /* nsae */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;Ljava/lang/Throwable;)V
            athrow
        end local 1 // java.security.NoSuchAlgorithmException nsae
         5: .line 50
      StackMap locals:
      StackMap stack:
            return
        end local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    6     0  this  Lio/vertx/ext/auth/impl/hash/PBKDF2;
            4    5     1  nsae  Ljava/security/NoSuchAlgorithmException;
      Exception table:
        from    to  target  type
           1     2       3  Class java.security.NoSuchAlgorithmException

  public java.lang.String id();
    descriptor: ()Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
         0: .line 54
            ldc "pbkdf2"
            areturn
        end local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/ext/auth/impl/hash/PBKDF2;

  public java.util.Set<java.lang.String> params();
    descriptor: ()Ljava/util/Set;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
         0: .line 59
            getstatic io.vertx.ext.auth.impl.hash.PBKDF2.DEFAULT_CONFIG:Ljava/util/Set;
            areturn
        end local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lio/vertx/ext/auth/impl/hash/PBKDF2;
    Signature: ()Ljava/util/Set<Ljava/lang/String;>;

  public java.lang.String hash(io.vertx.ext.auth.HashString, java.lang.String);
    descriptor: (Lio/vertx/ext/auth/HashString;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=6, locals=7, args_size=3
        start local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
        start local 1 // io.vertx.ext.auth.HashString hashString
        start local 2 // java.lang.String password
         0: .line 68
            aload 1 /* hashString */
            invokevirtual io.vertx.ext.auth.HashString.params:()Ljava/util/Map;
            ifnull 3
         1: .line 69
            aload 1 /* hashString */
            invokevirtual io.vertx.ext.auth.HashString.params:()Ljava/util/Map;
            ldc "it"
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.String
            invokestatic java.lang.Integer.getInteger:(Ljava/lang/String;)Ljava/lang/Integer;
            invokevirtual java.lang.Integer.intValue:()I
            istore 3 /* iterations */
        start local 3 // int iterations
         2: .line 70
            goto 7
        end local 3 // int iterations
         3: .line 71
      StackMap locals:
      StackMap stack:
            sipush 10000
            istore 3 /* iterations */
        start local 3 // int iterations
         4: .line 73
            goto 7
        end local 3 // int iterations
      StackMap locals:
      StackMap stack: java.lang.RuntimeException
         5: pop
         6: .line 74
            sipush 10000
            istore 3 /* iterations */
        start local 3 // int iterations
         7: .line 77
      StackMap locals: int
      StackMap stack:
            aload 1 /* hashString */
            invokevirtual io.vertx.ext.auth.HashString.salt:()Ljava/lang/String;
            ifnonnull 9
         8: .line 78
            new java.lang.RuntimeException
            dup
            ldc "hashString salt is null"
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/String;)V
            athrow
         9: .line 81
      StackMap locals:
      StackMap stack:
            getstatic io.vertx.ext.auth.impl.hash.PBKDF2.B64DEC:Ljava/util/Base64$Decoder;
            aload 1 /* hashString */
            invokevirtual io.vertx.ext.auth.HashString.salt:()Ljava/lang/String;
            invokevirtual java.util.Base64$Decoder.decode:(Ljava/lang/String;)[B
            astore 4 /* salt */
        start local 4 // byte[] salt
        10: .line 83
            new javax.crypto.spec.PBEKeySpec
            dup
        11: .line 84
            aload 2 /* password */
            invokevirtual java.lang.String.toCharArray:()[C
        12: .line 85
            aload 4 /* salt */
        13: .line 86
            iload 3 /* iterations */
        14: .line 87
            sipush 512
        15: .line 83
            invokespecial javax.crypto.spec.PBEKeySpec.<init>:([C[BII)V
            astore 5 /* spec */
        start local 5 // javax.crypto.spec.PBEKeySpec spec
        16: .line 90
            getstatic io.vertx.ext.auth.impl.hash.PBKDF2.B64ENC:Ljava/util/Base64$Encoder;
            aload 0 /* this */
            getfield io.vertx.ext.auth.impl.hash.PBKDF2.skf:Ljavax/crypto/SecretKeyFactory;
            aload 5 /* spec */
            invokevirtual javax.crypto.SecretKeyFactory.generateSecret:(Ljava/security/spec/KeySpec;)Ljavax/crypto/SecretKey;
            invokeinterface javax.crypto.SecretKey.getEncoded:()[B
            invokevirtual java.util.Base64$Encoder.encodeToString:([B)Ljava/lang/String;
        17: areturn
        18: .line 91
      StackMap locals: io.vertx.ext.auth.impl.hash.PBKDF2 io.vertx.ext.auth.HashString java.lang.String int byte[] javax.crypto.spec.PBEKeySpec
      StackMap stack: java.security.spec.InvalidKeySpecException
            astore 6 /* ikse */
        start local 6 // java.security.spec.InvalidKeySpecException ikse
        19: .line 92
            new java.lang.RuntimeException
            dup
            aload 6 /* ikse */
            invokespecial java.lang.RuntimeException.<init>:(Ljava/lang/Throwable;)V
            athrow
        end local 6 // java.security.spec.InvalidKeySpecException ikse
        end local 5 // javax.crypto.spec.PBEKeySpec spec
        end local 4 // byte[] salt
        end local 3 // int iterations
        end local 2 // java.lang.String password
        end local 1 // io.vertx.ext.auth.HashString hashString
        end local 0 // io.vertx.ext.auth.impl.hash.PBKDF2 this
      LocalVariableTable:
        Start  End  Slot        Name  Signature
            0   20     0        this  Lio/vertx/ext/auth/impl/hash/PBKDF2;
            0   20     1  hashString  Lio/vertx/ext/auth/HashString;
            0   20     2    password  Ljava/lang/String;
            2    3     3  iterations  I
            4    5     3  iterations  I
            7   20     3  iterations  I
           10   20     4        salt  [B
           16   20     5        spec  Ljavax/crypto/spec/PBEKeySpec;
           19   20     6        ikse  Ljava/security/spec/InvalidKeySpecException;
      Exception table:
        from    to  target  type
           0     4       5  Class java.lang.RuntimeException
          16    17      18  Class java.security.spec.InvalidKeySpecException
    MethodParameters:
            Name  Flags
      hashString  
      password    
}
SourceFile: "PBKDF2.java"
InnerClasses:
  public Decoder = java.util.Base64$Decoder of java.util.Base64
  public Encoder = java.util.Base64$Encoder of java.util.Base64