initial addition of essential crypto, encoders, workflows and LLM instructions

pkg/crypto/ec/seckey.go

@@ -0,0 +1,48 @@
+// Copyright (c) 2013-2016 The btcsuite developers
+// Use of this source code is governed by an ISC
+// license that can be found in the LICENSE file.
+
+package btcec
+
+import (
+	"next.orly.dev/pkg/crypto/ec/secp256k1"
+)
+
+// SecretKey wraps an ecdsa.SecretKey as a convenience mainly for signing things with the secret key without having to
+// directly import the ecdsa package.
+type SecretKey = secp256k1.SecretKey
+
+// PrivateKey wraps an ecdsa.SecretKey as a convenience mainly for signing things with the secret key without having to
+// directly import the ecdsa package.
+//
+// Deprecated: use SecretKey - secret = one person; private = two or more (you don't share secret keys!)
+type PrivateKey = SecretKey
+
+// SecKeyFromBytes returns a secret and public key for `curve' based on the
+// secret key passed as an argument as a byte slice.
+func SecKeyFromBytes(pk []byte) (*SecretKey, *PublicKey) {
+	privKey := secp256k1.SecKeyFromBytes(pk)
+	return privKey, privKey.PubKey()
+}
+
+var PrivKeyFromBytes = SecKeyFromBytes
+
+// NewSecretKey is a wrapper for ecdsa.GenerateKey that returns a SecretKey instead of the normal ecdsa.PrivateKey.
+func NewSecretKey() (*SecretKey, error) { return secp256k1.GenerateSecretKey() }
+
+// NewPrivateKey is a wrapper for ecdsa.GenerateKey that returns a SecretKey instead of the normal ecdsa.PrivateKey.
+//
+// Deprecated: use SecretKey - secret = one person; private = two or more (you don't share secret keys!)
+var NewPrivateKey = NewSecretKey
+
+// SecKeyFromScalar instantiates a new secret key from a scalar encoded as a
+// big integer.
+func SecKeyFromScalar(key *ModNScalar) *SecretKey {
+	return &SecretKey{Key: *key}
+}
+
+var PrivKeyFromScalar = SecKeyFromScalar
+
+// SecKeyBytesLen defines the length in bytes of a serialized secret key.
+const SecKeyBytesLen = 32
+const PrivKeyBytesLen = SecKeyBytesLen