http://www.bouncycastle.org/java.html: The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
  • The Legion of the Bouncy Castle Inc. 
class org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 implements org.bouncycastle.operator.DigestCalculator
  minor version: 0
  major version: 59
  flags: flags: (0x0020) ACC_SUPER
  this_class: org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1
  super_class: java.lang.Object
{
  final org.bouncycastle.operator.bc.BcDigestCalculatorProvider this$0;
    descriptor: Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider;
    flags: (0x1010) ACC_FINAL, ACC_SYNTHETIC

  private final org.bouncycastle.asn1.x509.AlgorithmIdentifier val$algorithm;
    descriptor: Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  private final org.bouncycastle.operator.bc.BcDigestCalculatorProvider$DigestOutputStream val$stream;
    descriptor: Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$DigestOutputStream;
    flags: (0x1012) ACC_PRIVATE, ACC_FINAL, ACC_SYNTHETIC

  void <init>(org.bouncycastle.operator.bc.BcDigestCalculatorProvider, org.bouncycastle.asn1.x509.AlgorithmIdentifier, org.bouncycastle.operator.bc.BcDigestCalculatorProvider$DigestOutputStream);
    descriptor: (Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider;Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$DigestOutputStream;)V
    flags: (0x0000) 
    Code:
      stack=2, locals=4, args_size=4
        start local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
         0: .line 26
            aload 0 /* this */
            aload 1
            putfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.this$0:Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider;
            aload 0 /* this */
            aload 2
            putfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.val$algorithm:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            aload 0 /* this */
            aload 3
            putfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.val$stream:Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$DigestOutputStream;
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$1;
    MethodParameters:
               Name  Flags
      this$0         final
      val$algorithm  final
      val$stream     final

  public org.bouncycastle.asn1.x509.AlgorithmIdentifier getAlgorithmIdentifier();
    descriptor: ()Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
         0: .line 30
            aload 0 /* this */
            getfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.val$algorithm:Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;
            areturn
        end local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$1;

  public java.io.OutputStream getOutputStream();
    descriptor: ()Ljava/io/OutputStream;
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
         0: .line 35
            aload 0 /* this */
            getfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.val$stream:Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$DigestOutputStream;
            areturn
        end local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$1;

  public byte[] getDigest();
    descriptor: ()[B
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
         0: .line 40
            aload 0 /* this */
            getfield org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1.val$stream:Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$DigestOutputStream;
            invokevirtual org.bouncycastle.operator.bc.BcDigestCalculatorProvider$DigestOutputStream.getDigest:()[B
            areturn
        end local 0 // org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1 this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/operator/bc/BcDigestCalculatorProvider$1;
}
SourceFile: "BcDigestCalculatorProvider.java"
EnclosingMethod: org.bouncycastle.operator.bc.BcDigestCalculatorProvider.get:(Lorg/bouncycastle/asn1/x509/AlgorithmIdentifier;)Lorg/bouncycastle/operator/DigestCalculator;
NestHost: org.bouncycastle.operator.bc.BcDigestCalculatorProvider
InnerClasses:
  org.bouncycastle.operator.bc.BcDigestCalculatorProvider$1
  private DigestOutputStream = org.bouncycastle.operator.bc.BcDigestCalculatorProvider$DigestOutputStream of org.bouncycastle.operator.bc.BcDigestCalculatorProvider