crypto: implement RSA-2048-PSS

2020-02-23 17:34:30 -08:00
parent d675aa3414
commit f3629f863d
13 changed files with 692 additions and 3 deletions
--- a/libraries/libvapours/include/vapours/crypto/crypto_sha256_generator.hpp
+++ b/libraries/libvapours/include/vapours/crypto/crypto_sha256_generator.hpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include <vapours/common.hpp>
+#include <vapours/assert.hpp>
+#include <vapours/util.hpp>
+#include <vapours/crypto/impl/crypto_sha256_impl.hpp>
+
+namespace ams::crypto {
+
+    class Sha256Generator {
+        private:
+            using Impl = impl::Sha256Impl;
+        public:
+            static constexpr size_t HashSize  = Impl::HashSize;
+            static constexpr size_t BlockSize = Impl::BlockSize;
+
+            static constexpr inline u8 Asn1Identifier[] = {
+                0x30, 0x31, /* Sequence, size 0x31 */
+                    0x30, 0x0D, /* Sequence, size 0x0D */
+                        0x06, 0x09, /* Object Identifier */
+                            0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x01, /* SHA-256 */
+                        0x00, /* Null */
+                    0x04, 0x20, /* Octet string, size 0x20 */
+            };
+            static constexpr size_t Asn1IdentifierSize = util::size(Asn1Identifier);
+        private:
+            Impl impl;
+        public:
+            Sha256Generator() { /* ... */ }
+
+            void Initialize() {
+                this->impl.Initialize();
+            }
+
+            void Update(const void *data, size_t size) {
+                this->impl.Update(data, size);
+            }
+
+            void GetHash(void *dst, size_t size) {
+                this->impl.GetHash(dst, size);
+            }
+    };
+
+    void GenerateSha256Hash(void *dst, size_t dst_size, const void *src, size_t src_size);
+
+}