public class io.vertx.ext.mail.impl.sasl.CryptUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: io.vertx.ext.mail.impl.sasl.CryptUtils
  super_class: java.lang.Object
{
  private void <init>();
    descriptor: ()V
    flags: (0x0002) ACC_PRIVATE
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // io.vertx.ext.mail.impl.sasl.CryptUtils this
         0: .line 32
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 33
            return
        end local 0 // io.vertx.ext.mail.impl.sasl.CryptUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    2     0  this  Lio/vertx/ext/mail/impl/sasl/CryptUtils;

  protected static java.lang.String hmacHex(java.lang.String, java.lang.String, java.lang.String);
    descriptor: (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=4, locals=5, args_size=3
        start local 0 // java.lang.String keyString
        start local 1 // java.lang.String message
        start local 2 // java.lang.String hmac
         0: .line 37
            new javax.crypto.spec.SecretKeySpec
            dup
            aload 0 /* keyString */
            getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
            invokevirtual java.lang.String.getBytes:(Ljava/nio/charset/Charset;)[B
            aload 2 /* hmac */
            invokespecial javax.crypto.spec.SecretKeySpec.<init>:([BLjava/lang/String;)V
            astore 3 /* key */
        start local 3 // javax.crypto.SecretKey key
         1: .line 38
            aload 3 /* key */
            invokeinterface javax.crypto.SecretKey.getAlgorithm:()Ljava/lang/String;
            invokestatic javax.crypto.Mac.getInstance:(Ljava/lang/String;)Ljavax/crypto/Mac;
            astore 4 /* mac */
        start local 4 // javax.crypto.Mac mac
         2: .line 39
            aload 4 /* mac */
            aload 3 /* key */
            invokevirtual javax.crypto.Mac.init:(Ljava/security/Key;)V
         3: .line 40
            aload 4 /* mac */
            aload 1 /* message */
            getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
            invokevirtual java.lang.String.getBytes:(Ljava/nio/charset/Charset;)[B
            invokevirtual javax.crypto.Mac.doFinal:([B)[B
            invokestatic io.vertx.ext.mail.impl.sasl.CryptUtils.encodeHex:([B)Ljava/lang/String;
         4: areturn
        end local 4 // javax.crypto.Mac mac
        end local 3 // javax.crypto.SecretKey key
         5: .line 41
      StackMap locals:
      StackMap stack: java.security.GeneralSecurityException
            pop
         6: .line 43
            ldc ""
            areturn
        end local 2 // java.lang.String hmac
        end local 1 // java.lang.String message
        end local 0 // java.lang.String keyString
      LocalVariableTable:
        Start  End  Slot       Name  Signature
            0    7     0  keyString  Ljava/lang/String;
            0    7     1    message  Ljava/lang/String;
            0    7     2       hmac  Ljava/lang/String;
            1    5     3        key  Ljavax/crypto/SecretKey;
            2    5     4        mac  Ljavax/crypto/Mac;
      Exception table:
        from    to  target  type
           0     4       5  Class java.security.NoSuchAlgorithmException
           0     4       5  Class java.security.InvalidKeyException
    MethodParameters:
           Name  Flags
      keyString  
      message    
      hmac       

  protected static java.lang.String encodeHex(byte[]);
    descriptor: ([B)Ljava/lang/String;
    flags: (0x000c) ACC_PROTECTED, ACC_STATIC
    Code:
      stack=4, locals=7, args_size=1
        start local 0 // byte[] bytes
         0: .line 52
            new java.lang.StringBuilder
            dup
            aload 0 /* bytes */
            arraylength
            iconst_2
            imul
            invokespecial java.lang.StringBuilder.<init>:(I)V
            astore 1 /* sb */
        start local 1 // java.lang.StringBuilder sb
         1: .line 53
            aload 0 /* bytes */
            dup
            astore 5
            arraylength
            istore 4
            iconst_0
            istore 3
            goto 8
      StackMap locals: byte[] java.lang.StringBuilder top int int byte[]
      StackMap stack:
         2: aload 5
            iload 3
            baload
            istore 2 /* b */
        start local 2 // byte b
         3: .line 54
            iload 2 /* b */
            sipush 255
            iand
            istore 6 /* v */
        start local 6 // int v
         4: .line 55
            iload 6 /* v */
            bipush 16
            if_icmpge 6
         5: .line 56
            aload 1 /* sb */
            bipush 48
            invokevirtual java.lang.StringBuilder.append:(C)Ljava/lang/StringBuilder;
            pop
         6: .line 58
      StackMap locals: byte[] java.lang.StringBuilder int int int byte[] int
      StackMap stack:
            aload 1 /* sb */
            iload 6 /* v */
            invokestatic java.lang.Integer.toHexString:(I)Ljava/lang/String;
            invokevirtual java.lang.StringBuilder.append:(Ljava/lang/String;)Ljava/lang/StringBuilder;
            pop
        end local 6 // int v
        end local 2 // byte b
         7: .line 53
            iinc 3 1
      StackMap locals: byte[] java.lang.StringBuilder top int int byte[]
      StackMap stack:
         8: iload 3
            iload 4
            if_icmplt 2
         9: .line 60
            aload 1 /* sb */
            invokevirtual java.lang.StringBuilder.toString:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.StringBuilder sb
        end local 0 // byte[] bytes
      LocalVariableTable:
        Start  End  Slot   Name  Signature
            0   10     0  bytes  [B
            1   10     1     sb  Ljava/lang/StringBuilder;
            3    7     2      b  B
            4    7     6      v  I
    MethodParameters:
       Name  Flags
      bytes  

  public static java.lang.String base64(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=3, locals=1, args_size=1
        start local 0 // java.lang.String string
         0: .line 67
            invokestatic java.util.Base64.getEncoder:()Ljava/util/Base64$Encoder;
            aload 0 /* string */
            getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
            invokevirtual java.lang.String.getBytes:(Ljava/nio/charset/Charset;)[B
            invokevirtual java.util.Base64$Encoder.encodeToString:([B)Ljava/lang/String;
            areturn
        end local 0 // java.lang.String string
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  string  Ljava/lang/String;
    MethodParameters:
        Name  Flags
      string  

  public static java.lang.String base64(byte[]);
    descriptor: ([B)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // byte[] data
         0: .line 71
            invokestatic java.util.Base64.getEncoder:()Ljava/util/Base64$Encoder;
            aload 0 /* data */
            invokevirtual java.util.Base64$Encoder.encodeToString:([B)Ljava/lang/String;
            areturn
        end local 0 // byte[] data
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  data  [B
    MethodParameters:
      Name  Flags
      data  

  public static java.lang.String decodeb64(java.lang.String);
    descriptor: (Ljava/lang/String;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=4, locals=1, args_size=1
        start local 0 // java.lang.String string
         0: .line 75
            new java.lang.String
            dup
            invokestatic java.util.Base64.getDecoder:()Ljava/util/Base64$Decoder;
            aload 0 /* string */
            invokevirtual java.util.Base64$Decoder.decode:(Ljava/lang/String;)[B
            getstatic java.nio.charset.StandardCharsets.UTF_8:Ljava/nio/charset/Charset;
            invokespecial java.lang.String.<init>:([BLjava/nio/charset/Charset;)V
            areturn
        end local 0 // java.lang.String string
      LocalVariableTable:
        Start  End  Slot    Name  Signature
            0    1     0  string  Ljava/lang/String;
    MethodParameters:
        Name  Flags
      string  
}
SourceFile: "CryptUtils.java"
InnerClasses:
  public Decoder = java.util.Base64$Decoder of java.util.Base64
  public Encoder = java.util.Base64$Encoder of java.util.Base64