feature/1220 origin handle exists method (#1241)

* feat: add docs and CI workflow for publishing to onsonr.dev

* (refactor): Move hway,motr executables to their own repos

* feat: simplify devnet and testnet configurations

* refactor: update import path for didcrypto package

* docs(networks): Add README with project overview, architecture, and community links

* refactor: Move network configurations to deploy directory

* build: update golang version to 1.23

* refactor: move logger interface to appropriate package

* refactor: Move devnet configuration to networks/devnet

* chore: improve release process with date variable

* (chore): Move Crypto Library

* refactor: improve code structure and readability in DID module

* feat: integrate Trunk CI checks

* ci: optimize CI workflow by removing redundant build jobs

---------

Co-authored-by: Darp Alakun <i@prad.nu>

crypto/signatures/common/hmacdrbg.go

@@ -0,0 +1,99 @@
+//
+// Copyright Coinbase, Inc. All Rights Reserved.
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package common
+
+import (
+	"crypto/hmac"
+	"hash"
+)
+
+// HmacDrbg is an HMAC deterministic random bit generator
+// that can use any hash function. Handles reseeding
+// automatically
+type HmacDrbg struct {
+	k, v   []byte
+	count  int
+	hasher func() hash.Hash
+}
+
+func NewHmacDrbg(entropy, nonce, pers []byte, hasher func() hash.Hash) *HmacDrbg {
+	drbg := new(HmacDrbg)
+	h := hasher()
+	drbg.k = make([]byte, h.Size())
+	drbg.v = make([]byte, h.Size())
+	drbg.count = 0
+	drbg.hasher = hasher
+
+	for i := range drbg.v {
+		drbg.v[i] = 1
+	}
+
+	drbg.update([][]byte{entropy, nonce, pers})
+	drbg.count += 1
+	return drbg
+}
+
+func (drbg *HmacDrbg) Read(dst []byte) (n int, err error) {
+	toRead := len(dst)
+	if toRead == 0 {
+		return 0, nil
+	}
+	i := 0
+	for i < toRead {
+		vmac := drbg.getHmac()
+		_, _ = vmac.Write(drbg.v)
+		drbg.v = vmac.Sum(nil)
+
+		for j, b := range drbg.v {
+			dst[i+j] = b
+		}
+		i += len(drbg.v)
+	}
+	drbg.update(nil)
+	drbg.count++
+	return i, nil
+}
+
+func (drbg *HmacDrbg) Reseed(entropy []byte) {
+	drbg.update([][]byte{entropy})
+}
+
+func (drbg *HmacDrbg) getHmac() hash.Hash {
+	return hmac.New(drbg.hasher, drbg.k)
+}
+
+func (drbg *HmacDrbg) update(seeds [][]byte) {
+	kmac := drbg.getHmac()
+	_, _ = kmac.Write(drbg.v)
+	_, _ = kmac.Write([]byte{0})
+	if len(seeds) > 0 {
+		for _, seed := range seeds {
+			_, _ = kmac.Write(seed)
+		}
+	}
+	drbg.k = kmac.Sum(nil)
+
+	vmac := drbg.getHmac()
+	_, _ = vmac.Write(drbg.v)
+	drbg.v = vmac.Sum(nil)
+
+	if len(seeds) == 0 {
+		return
+	}
+
+	kmac = drbg.getHmac()
+	_, _ = kmac.Write(drbg.v)
+	_, _ = kmac.Write([]byte{1})
+	for _, seed := range seeds {
+		_, _ = kmac.Write(seed)
+	}
+	drbg.k = kmac.Sum(nil)
+
+	vmac = drbg.getHmac()
+	_, _ = vmac.Write(drbg.v)
+	drbg.v = vmac.Sum(nil)
+}