Add creation and resolution of DIDs using method 1

peerdid/__init__.py

@@ -2,8 +2,17 @@
 
 from . import core, dids, errors, keys
 
-from pydid import DID, DIDDocument
+from pydid import BaseDIDDocument, DID, DIDDocument
 
 __version__ = "0.5.1"
 
-__all__ = ["__version__", "core", "errors", "dids", "keys", "DID", "DIDDocument"]
+__all__ = [
+    "__version__",
+    "core",
+    "errors",
+    "dids",
+    "keys",
+    "BaseDIDDocument",
+    "DID",
+    "DIDDocument",
+]

peerdid/core/multicodec.py

@@ -1,6 +1,7 @@
 """Multicodec utility methods."""
 
 from enum import Enum
+from io import BytesIO
 from typing import Tuple, Union
 
 import varint
@@ -11,32 +12,37 @@ class Codec(Enum):
 
     X25519 = 0xEC
     ED25519 = 0xED
+    SHA256 = 0x12
 
     def encode_multicodec(self, value: bytes) -> bytes:
         """Encode a value with this codec."""
         prefix = varint.encode(self.value)
         return prefix + value
 
+    def encode_multicodec_with_length(self, value: bytes) -> bytes:
+        """Encode a value with this codec."""
+        prefix = varint.encode(self.value) + varint.encode(len(value))
+        return prefix + value
+
 
 def from_multicodec(value: Union[str, bytes]) -> Tuple[bytes, Codec]:
     """Decode a multicodec value."""
     if isinstance(value, str):
         value = value.encode("utf-8")
+    buffer = BytesIO(value)
     try:
-        prefix_int = varint.decode_bytes(value)
+        prefix_int = varint.decode_stream(buffer)
     except Exception:
-        raise ValueError(
-            "Invalid key: Invalid multicodec prefix in {}".format(str(value))
-        )
+        raise ValueError("Invalid key: Invalid multicodec prefix in {}".format(value))
+    remain = buffer.read()
 
     try:
         codec = Codec(prefix_int)
     except ValueError:
         raise ValueError(
             "Invalid key: Unknown multicodec prefix {} in {}".format(
-                str(prefix_int), str(value)
+                hex(prefix_int), value
             )
         )
 
-    prefix = varint.encode(prefix_int)
-    return value[len(prefix) :], codec
+    return remain, codec

peerdid/core/peer_did_helper.py

@@ -141,7 +141,7 @@ def decode_service(service: str) -> Optional[List[Service]]:
 
 def decode_multibase_numbasis(
     multibase: str,
-    key_format: KeyFormat,
+    key_format: KeyFormat = None,
 ) -> BaseKey:
     """
     Decode multibase-encoded numeric basis to a verification method for DID Document.