From eabf799e516d276a73cee4eef5315a2632b8a411 Mon Sep 17 00:00:00 2001
From: Didactic Drunk <1479616+didactic-drunk@users.noreply.github.com>
Date: Sat, 12 Jun 2021 16:04:49 -0700
Subject: [PATCH] Initial code

---
 shard.yml                  |  2 +-
 spec/crypto_secret_spec.cr |  7 +++++++
 spec/not_spec.cr           | 10 ++++++++++
 spec/spec_helper.cr        |  2 ++
 src/crypto_secret.cr       | 30 ++++++++++++++++++++++++++++++
 src/crypto_secret/not.cr   | 16 ++++++++++++++++
 6 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100644 spec/crypto_secret_spec.cr
 create mode 100644 spec/not_spec.cr
 create mode 100644 spec/spec_helper.cr
 create mode 100644 src/crypto_secret.cr
 create mode 100644 src/crypto_secret/not.cr

diff --git a/shard.yml b/shard.yml
index 194a27b..0331a40 100644
--- a/shard.yml
+++ b/shard.yml
@@ -4,6 +4,6 @@ version: 0.1.0
 authors:
   - Didactic Drunk <1479616+didactic-drunk@users.noreply.github.com>
 
-crystal: 1.0.0
+crystal: ">= 0.37"
 
 license: MIT
diff --git a/spec/crypto_secret_spec.cr b/spec/crypto_secret_spec.cr
new file mode 100644
index 0000000..72f5072
--- /dev/null
+++ b/spec/crypto_secret_spec.cr
@@ -0,0 +1,7 @@
+require "./spec_helper"
+
+describe Crypto::Secret do
+  pending "works" do
+    false.should eq(true)
+  end
+end
diff --git a/spec/not_spec.cr b/spec/not_spec.cr
new file mode 100644
index 0000000..0a7e485
--- /dev/null
+++ b/spec/not_spec.cr
@@ -0,0 +1,10 @@
+require "./spec_helper"
+require "../src/crypto_secret/not"
+
+describe Crypto::Secret::Not do
+  it "works" do
+    ksize = 32
+    secret = Crypto::Secret::Not.new ksize
+    secret.to_slice.should eq Bytes.new ksize
+  end
+end
diff --git a/spec/spec_helper.cr b/spec/spec_helper.cr
new file mode 100644
index 0000000..02d03ce
--- /dev/null
+++ b/spec/spec_helper.cr
@@ -0,0 +1,2 @@
+require "spec"
+require "../src/crypto_secret"
diff --git a/src/crypto_secret.cr b/src/crypto_secret.cr
new file mode 100644
index 0000000..970a2d5
--- /dev/null
+++ b/src/crypto_secret.cr
@@ -0,0 +1,30 @@
+# Interface to hold sensitive information (often cryptographic keys)
+#
+#
+@[Experimental]
+module Crypto::Secret
+  abstract def to_slice : Bytes
+
+  def readwrite
+  end
+
+  def readonly
+  end
+
+  def noaccess
+  end
+
+  def wipe
+    # Todo: implement wiping
+  end
+
+  def wipe
+    yield
+  ensure
+    wipe
+  end
+
+  def finalize
+    wipe
+  end
+end
diff --git a/src/crypto_secret/not.cr b/src/crypto_secret/not.cr
new file mode 100644
index 0000000..5c2a342
--- /dev/null
+++ b/src/crypto_secret/not.cr
@@ -0,0 +1,16 @@
+# A not very secret secret
+#
+# Not locked in memory
+# Not access protected
+# No guard pages
+struct Crypto::Secret::Not
+  include Crypto::Secret
+
+  def initialize(size)
+    @bytes = Bytes.new size
+  end
+
+  def to_slice : Bytes
+    @bytes
+  end
+end