_ Git - ldk-java/blob - src/main/java/org/ldk/structs/TaggedHash.java

   1 package org.ldk.structs;
   2
   3 import org.ldk.impl.bindings;
   4 import org.ldk.enums.*;
   5 import org.ldk.util.*;
   6 import java.util.Arrays;
   7 import java.lang.ref.Reference;
   8 import javax.annotation.Nullable;
   9
  10
  11 /**
  12  * A hash for use in a specific context by tweaking with a context-dependent tag as per [BIP 340]
  13  * and computed over the merkle root of a TLV stream to sign as defined in [BOLT 12].
  14  *
  15  * [BIP 340]: https://github.com/bitcoin/bips/blob/master/bip-0340.mediawiki
  16  * [BOLT 12]: https://github.com/rustyrussell/lightning-rfc/blob/guilt/offers/12-offer-encoding.md#signature-calculation
  17  */
  18 @SuppressWarnings("unchecked") // We correctly assign various generic arrays
  19 public class TaggedHash extends CommonBase {
  20         TaggedHash(Object _dummy, long ptr) { super(ptr); }
  21         @Override @SuppressWarnings("deprecation")
  22         protected void finalize() throws Throwable {
  23                 super.finalize();
  24                 if (ptr != 0) { bindings.TaggedHash_free(ptr); }
  25         }
  26
  27         long clone_ptr() {
  28                 long ret = bindings.TaggedHash_clone_ptr(this.ptr);
  29                 Reference.reachabilityFence(this);
  30                 return ret;
  31         }
  32
  33         /**
  34          * Creates a copy of the TaggedHash
  35          */
  36         public TaggedHash clone() {
  37                 long ret = bindings.TaggedHash_clone(this.ptr);
  38                 Reference.reachabilityFence(this);
  39                 if (ret >= 0 && ret <= 4096) { return null; }
  40                 org.ldk.structs.TaggedHash ret_hu_conv = null; if (ret < 0 || ret > 4096) { ret_hu_conv = new org.ldk.structs.TaggedHash(null, ret); }
  41                 if (ret_hu_conv != null) { ret_hu_conv.ptrs_to.add(this); };
  42                 return ret_hu_conv;
  43         }
  44
  45         /**
  46          * Returns the digest to sign.
  47          */
  48         public byte[] as_digest() {
  49                 byte[] ret = bindings.TaggedHash_as_digest(this.ptr);
  50                 Reference.reachabilityFence(this);
  51                 return ret;
  52         }
  53
  54         /**
  55          * Returns the tag used in the tagged hash.
  56          */
  57         public String tag() {
  58                 String ret = bindings.TaggedHash_tag(this.ptr);
  59                 Reference.reachabilityFence(this);
  60                 return ret;
  61         }
  62
  63         /**
  64          * Returns the merkle root used in the tagged hash.
  65          */
  66         public byte[] merkle_root() {
  67                 byte[] ret = bindings.TaggedHash_merkle_root(this.ptr);
  68                 Reference.reachabilityFence(this);
  69                 return ret;
  70         }
  71
  72 }