// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package dirhash defines hashes over directory trees.
// These hashes are recorded in go.sum files and in the Go checksum database,
// to allow verifying that a newly-downloaded module has the expected content.
package dirhash

import (
	"archive/zip"
	"crypto/sha256"
	"encoding/base64"

    }

    def "delegate configuration is added to hasher"() {
        def configurationHasher = Mock(Hasher)
        delegate = Mock(ResourceHasher)

        when:
        filteredHasher.appendConfigurationToHasher(configurationHasher)

        then:
        1 * delegate.appendConfigurationToHasher(configurationHasher)
    }

  }

  static HashCode randomHash(HashFunction hashFunction, Random random, int numActions) {
    Hasher hasher = hashFunction.newHasher();
    for (int i = 0; i < numActions; i++) {
      RandomHasherAction.pickAtRandom(random).performAction(random, ImmutableSet.of(hasher));
    }
    return hasher.hash();
  }

  private static void assertShortcutsAreEquivalent(HashFunction hashFunction, int trials) {

	k0, k1 := binary.LittleEndian.Uint64(id[0:8]), binary.LittleEndian.Uint64(id[8:16])
	sum64 := siphash.Hash(k0, k1, []byte(key))
	return int(sum64 % uint64(cardinality))
}

// hashOrder - hashes input key to return consistent
// hashed integer slice. Returned integer order is salted
// with an input key. This results in consistent order.
// NOTE: collisions are fine, we are not looking for uniqueness
// in the slices returned.

Der Dieb kann also nicht versuchen, die gleichen Passwörter in einem anderen System zu verwenden (da viele Benutzer überall das gleiche Passwort verwenden, wäre dies gefährlich).

## `passlib` installieren

PassLib ist ein großartiges Python-Package, um Passwort-Hashes zu handhaben.

        val root = this@hashWithoutMessages
        val hasher = Hashing.newHasher()
        for (failure in sequence { visitFailures(root) }) {
            hasher.putString(failure.exceptionType.name)
            for (element in failure.stackTrace) {
                hasher.putString(element.toString())
            }
        }
        return hasher.hash()
    }

    private

// final executable generated by the external linker.

import (
	"cmd/internal/notsha256"
	"debug/macho"
	"io"
	"os"
	"unsafe"
)

// uuidFromGoBuildId hashes the Go build ID and returns a slice of 16
// bytes suitable for use as the payload in a Macho LC_UUID load
// command.
func uuidFromGoBuildId(buildID string) []byte {
	if buildID == "" {
		return make([]byte, 16)
	}

	}
	if ctxt != nil {
		ctxts = append(ctxts, ctxt)
	}
	assert(len(ctxts) > 0)

	// Compute all hashes; hashes may differ across contexts due to different
	// unique IDs for Named types within the hasher.
	hashes := make([]string, len(ctxts))
	for i, ctxt := range ctxts {
		hashes[i] = ctxt.instanceHash(orig, targs)
	}

	// Record the result in all contexts.

	}
	if ctxt != nil {
		ctxts = append(ctxts, ctxt)
	}
	assert(len(ctxts) > 0)

	// Compute all hashes; hashes may differ across contexts due to different
	// unique IDs for Named types within the hasher.
	hashes := make([]string, len(ctxts))
	for i, ctxt := range ctxts {
		hashes[i] = ctxt.instanceHash(orig, targs)
	}

	// Record the result in all contexts.

  }

  private Hasher fromHashers(Hasher[] hashers) {
    return new Hasher() {
      @Override
      public Hasher putByte(byte b) {
        for (Hasher hasher : hashers) {
          hasher.putByte(b);
        }
        return this;
      }

      @Override
      public Hasher putBytes(byte[] bytes) {
        for (Hasher hasher : hashers) {
          hasher.putBytes(bytes);
        }