1 files changed, 90 insertions, 0 deletions
diff --git a/src/lib/crypto/rsa.h b/src/lib/crypto/rsa.h
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+/*
+ * Copyright (c) 2017, [Ribose Inc](https://www.ribose.com).
+ * All rights reserved.
+ *
+ * This code is originally derived from software contributed to
+ * The NetBSD Foundation by Alistair Crooks (agc@netbsd.org), and
+ * carried further by Ribose Inc (https://www.ribose.com).
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RNP_RSA_H_
+#define RNP_RSA_H_
+
+#include <rnp/rnp_def.h>
+#include <repgp/repgp_def.h>
+#include "crypto/rng.h"
+#include "crypto/mpi.h"
+
+typedef struct pgp_rsa_key_t {
+    pgp_mpi_t n;
+    pgp_mpi_t e;
+    /* secret mpis */
+    pgp_mpi_t d;
+    pgp_mpi_t p;
+    pgp_mpi_t q;
+    pgp_mpi_t u;
+} pgp_rsa_key_t;
+
+typedef struct pgp_rsa_signature_t {
+    pgp_mpi_t s;
+} pgp_rsa_signature_t;
+
+typedef struct pgp_rsa_encrypted_t {
+    pgp_mpi_t m;
+} pgp_rsa_encrypted_t;
+
+/*
+ * RSA encrypt/decrypt
+ */
+
+rnp_result_t rsa_validate_key(rnp::RNG *rng, const pgp_rsa_key_t *key, bool secret);
+
+rnp_result_t rsa_generate(rnp::RNG *rng, pgp_rsa_key_t *key, size_t numbits);
+
+rnp_result_t rsa_encrypt_pkcs1(rnp::RNG *           rng,
+                               pgp_rsa_encrypted_t *out,
+                               const uint8_t *      in,
+                               size_t               in_len,
+                               const pgp_rsa_key_t *key);
+
+rnp_result_t rsa_decrypt_pkcs1(rnp::RNG *                 rng,
+                               uint8_t *                  out,
+                               size_t *                   out_len,
+                               const pgp_rsa_encrypted_t *in,
+                               const pgp_rsa_key_t *      key);
+
+rnp_result_t rsa_verify_pkcs1(const pgp_rsa_signature_t *sig,
+                              pgp_hash_alg_t             hash_alg,
+                              const uint8_t *            hash,
+                              size_t                     hash_len,
+                              const pgp_rsa_key_t *      key);
+
+rnp_result_t rsa_sign_pkcs1(rnp::RNG *           rng,
+                            pgp_rsa_signature_t *sig,
+                            pgp_hash_alg_t       hash_alg,
+                            const uint8_t *      hash,
+                            size_t               hash_len,
+                            const pgp_rsa_key_t *key);
+
+#endif