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This commit is contained in:
Mikko Ahlroth 2022-02-09 18:06:11 +02:00
parent dfa01c7e25
commit 6fc4dfe3e9
1 changed files with 20 additions and 11 deletions
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31
lib/crypto/ssh.ex
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@ -206,9 +206,11 @@ defmodule Minisome.Crypto.SSH do
@spec parse_keys(binary()) :: {:ok, [PublicKey.t()], binary()} | {:error, atom()}
defp parse_keys(blob)
defp parse_keys(
<<key_blob_len::unsigned-integer-32, key_blob::binary-size(key_blob_len), rest::binary>>
) do
defp parse_keys(<<
key_blob_len::unsigned-integer-32,
key_blob::binary-size(key_blob_len),
rest::binary
>>) do
case :ssh_file.decode(key_blob, :ssh2_pubkey) do
{:error, _} -> {:error, :keys}
keys when is_list(keys) -> {:ok, Enum.map(keys, &%PublicKey{data: &1}), rest}
@ -221,10 +223,11 @@ defmodule Minisome.Crypto.SSH do
@spec parse_namespace(binary()) :: {:ok, binary(), binary()} | {:error, atom()}
defp parse_namespace(blob)
defp parse_namespace(
<<namespace_len::unsigned-integer-32, namespace::binary-size(namespace_len),
rest::binary>>
),
defp parse_namespace(<<
namespace_len::unsigned-integer-32,
namespace::binary-size(namespace_len),
rest::binary
>>),
do: {:ok, namespace, rest}
defp parse_namespace(_), do: {:error, :namespace}
@ -232,9 +235,11 @@ defmodule Minisome.Crypto.SSH do
@spec parse_reserved(binary()) :: {:ok, binary()} | {:error, atom()}
defp parse_reserved(blob)
defp parse_reserved(
<<reserved_len::unsigned-integer-32, _reserved::binary-size(reserved_len), rest::binary>>
),
defp parse_reserved(<<
reserved_len::unsigned-integer-32,
_reserved::binary-size(reserved_len),
rest::binary
>>),
do: {:ok, rest}
defp parse_reserved(_), do: {:error, :reserved}
@ -242,7 +247,11 @@ defmodule Minisome.Crypto.SSH do
@spec parse_hash(binary()) :: {:ok, hash_algo(), binary()} | {:error, atom()}
defp parse_hash(blob)
defp parse_hash(<<hash_len::unsigned-integer-32, hash::binary-size(hash_len), rest::binary>>)
defp parse_hash(<<
hash_len::unsigned-integer-32,
hash::binary-size(hash_len),
rest::binary
>>)
when hash in ["sha256", "sha512"],
do: {:ok, String.to_existing_atom(hash), rest}