http://www.bouncycastle.org/java.html: The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8.
  • The Legion of the Bouncy Castle Inc. 
public class org.bouncycastle.jcajce.util.MessageDigestUtils
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.bouncycastle.jcajce.util.MessageDigestUtils
  super_class: java.lang.Object
{
  private static java.util.Map<org.bouncycastle.asn1.ASN1ObjectIdentifier, java.lang.String> digestOidMap;
    descriptor: Ljava/util/Map;
    flags: (0x000a) ACC_PRIVATE, ACC_STATIC
    Signature: Ljava/util/Map<Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;Ljava/lang/String;>;

  static void <clinit>();
    descriptor: ()V
    flags: (0x0008) ACC_STATIC
    Code:
      stack=3, locals=0, args_size=0
         0: .line 18
            new java.util.HashMap
            dup
            invokespecial java.util.HashMap.<init>:()V
            putstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
         1: .line 22
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.md2:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "MD2"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         2: .line 23
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.md4:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "MD4"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         3: .line 24
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.pkcs.PKCSObjectIdentifiers.md5:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "MD5"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         4: .line 25
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.oiw.OIWObjectIdentifiers.idSHA1:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA-1"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         5: .line 26
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha224:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA-224"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         6: .line 27
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha256:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA-256"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         7: .line 28
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha384:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA-384"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         8: .line 29
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha512:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA-512"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
         9: .line 30
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers.ripemd128:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "RIPEMD-128"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        10: .line 31
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers.ripemd160:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "RIPEMD-160"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        11: .line 32
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.teletrust.TeleTrusTObjectIdentifiers.ripemd256:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "RIPEMD-128"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        12: .line 33
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.iso.ISOIECObjectIdentifiers.ripemd128:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "RIPEMD-128"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        13: .line 34
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.iso.ISOIECObjectIdentifiers.ripemd160:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "RIPEMD-160"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        14: .line 35
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.cryptopro.CryptoProObjectIdentifiers.gostR3411:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "GOST3411"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        15: .line 36
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.gnu.GNUObjectIdentifiers.Tiger_192:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "Tiger"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        16: .line 37
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.iso.ISOIECObjectIdentifiers.whirlpool:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "Whirlpool"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        17: .line 38
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha3_224:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA3-224"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        18: .line 39
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha3_256:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA3-256"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        19: .line 40
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha3_384:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA3-384"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        20: .line 41
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.nist.NISTObjectIdentifiers.id_sha3_512:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SHA3-512"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        21: .line 42
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            getstatic org.bouncycastle.asn1.gm.GMObjectIdentifiers.sm3:Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            ldc "SM3"
            invokeinterface java.util.Map.put:(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
            pop
        22: .line 43
            return
      LocalVariableTable:
        Start  End  Slot  Name  Signature

  public void <init>();
    descriptor: ()V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=1, locals=1, args_size=1
        start local 0 // org.bouncycastle.jcajce.util.MessageDigestUtils this
         0: .line 16
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
            return
        end local 0 // org.bouncycastle.jcajce.util.MessageDigestUtils this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/bouncycastle/jcajce/util/MessageDigestUtils;

  public static java.lang.String getDigestName(org.bouncycastle.asn1.ASN1ObjectIdentifier);
    descriptor: (Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;)Ljava/lang/String;
    flags: (0x0009) ACC_PUBLIC, ACC_STATIC
    Code:
      stack=2, locals=2, args_size=1
        start local 0 // org.bouncycastle.asn1.ASN1ObjectIdentifier digestAlgOID
         0: .line 53
            getstatic org.bouncycastle.jcajce.util.MessageDigestUtils.digestOidMap:Ljava/util/Map;
            aload 0 /* digestAlgOID */
            invokeinterface java.util.Map.get:(Ljava/lang/Object;)Ljava/lang/Object;
            checkcast java.lang.String
            astore 1 /* name */
        start local 1 // java.lang.String name
         1: .line 54
            aload 1 /* name */
            ifnull 3
         2: .line 56
            aload 1 /* name */
            areturn
         3: .line 59
      StackMap locals: java.lang.String
      StackMap stack:
            aload 0 /* digestAlgOID */
            invokevirtual org.bouncycastle.asn1.ASN1ObjectIdentifier.getId:()Ljava/lang/String;
            areturn
        end local 1 // java.lang.String name
        end local 0 // org.bouncycastle.asn1.ASN1ObjectIdentifier digestAlgOID
      LocalVariableTable:
        Start  End  Slot          Name  Signature
            0    4     0  digestAlgOID  Lorg/bouncycastle/asn1/ASN1ObjectIdentifier;
            1    4     1          name  Ljava/lang/String;
    MethodParameters:
              Name  Flags
      digestAlgOID  
}
SourceFile: "MessageDigestUtils.java"