From d8e15f7d681e031ef4d1aa3fe30ed99e79b8c925 Mon Sep 17 00:00:00 2001
From: Moul <moul@moul.re>
Date: Wed, 16 Jan 2019 18:24:28 +0100
Subject: [PATCH] [enh] #71: add methods to handle seed, and seedhex formats
- Read and save file in seedhex format
- Intermediaries methods to be passed with seed
---
duniterpy/key/signing_key.py | 57 +++++++++++++++++++++++++++++++++++-
1 file changed, 56 insertions(+), 1 deletion(-)
diff --git a/duniterpy/key/signing_key.py b/duniterpy/key/signing_key.py
index d8fc172c..b2180caa 100644
--- a/duniterpy/key/signing_key.py
+++ b/duniterpy/key/signing_key.py
@@ -12,7 +12,7 @@ from libnacl.utils import load_key
from pylibscrypt import scrypt
from .base58 import Base58Encoder
-from ..helpers import ensure_bytes, xor_bytes
+from ..helpers import ensure_bytes, xor_bytes, convert_seedhex_to_seed, convert_seed_to_seedhex
SEED_LENGTH = 32 # Length of the key
crypto_sign_BYTES = 64
@@ -68,6 +68,61 @@ class SigningKey(libnacl.sign.Signer):
return cls(seed)
+ def save_seedhex_file_from_seed(self, path: str) -> None:
+ """
+ Save hexadecimal seed file from seed
+
+ :param path: Authentication file path
+ """
+ seedhex = convert_seed_to_seedhex(self.seed)
+ SigningKey.save_seedhex_file(seedhex, path)
+
+ @staticmethod
+ def save_seedhex_file(seedhex: str, path: str) -> None:
+ """
+ Save hexadecimal seed file
+
+ :param seedhex: Hexadecimal seed string
+ :param path: Authentication file path
+ """
+ with open(path, 'w') as fh:
+ fh.write(seedhex)
+
+ @staticmethod
+ def from_seedhex_file(path: str) -> SigningKeyType:
+ """
+ Return SigningKey instance from Seedhex file
+
+ :param str path: Hexadecimal seed file path
+ """
+ with open(path, 'r') as fh:
+ seedhex = fh.read()
+ return SigningKey.from_seedhex(seedhex)
+
+ @staticmethod
+ def from_seedhex(seedhex: str) -> SigningKeyType:
+ """
+ Return SigningKey instance from Seedhex
+
+ :param str seedhex: Hexadecimal seed string
+ """
+ regex_seedhex = compile("([0-9a-fA-F]{64})")
+ match = search(regex_seedhex, seedhex)
+ if not match:
+ raise Exception('Error: Bad seed hexadecimal format')
+ seedhex = match.groups()[0]
+ seed = convert_seedhex_to_seed(seedhex)
+ return SigningKey.from_seed(seed)
+
+ @classmethod
+ def from_seed(cls: Type[SigningKeyType], seed: bytes) -> SigningKeyType:
+ """
+ Return SigningKey instance from Seed
+
+ :param str seed: seed string
+ """
+ return cls(seed)
+
def save_private_key(self, path: str) -> None:
"""
Save authentication file
--
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