Grasshopper && CMake

1 files changed, 108 insertions, 0 deletions

diff --git a/gost_grasshopper_cipher.h b/gost_grasshopper_cipher.h
new file mode 100644
index 0000000..c406614
--- /dev/null
+++ b/gost_grasshopper_cipher.h
@@ -0,0 +1,108 @@
+/*
+ * Maxim Tishkov 2016
+ * This file is distributed under the same license as OpenSSL
+ */
+
+#ifndef GOST_GRASSHOPPER_CIPHER_H
+#define GOST_GRASSHOPPER_CIPHER_H
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#include "gost_grasshopper_defines.h"
+
+#include <openssl/evp.h>
+
+// not thread safe
+// because of buffers
+typedef struct {
+    uint8_t type;
+    grasshopper_key_t key;
+    grasshopper_round_keys_t encrypt_round_keys;
+    grasshopper_round_keys_t decrypt_round_keys;
+    grasshopper_w128_t buffer;
+} gost_grasshopper_cipher_ctx;
+
+typedef struct {
+    gost_grasshopper_cipher_ctx c;
+    grasshopper_w128_t buffer1;
+    uint32_t g;
+    uint32_t go;
+} gost_grasshopper_cipher_ctx_ofb;
+
+typedef struct {
+    gost_grasshopper_cipher_ctx c;
+    grasshopper_w128_t iv_buffer;
+    grasshopper_w128_t partial_buffer;
+    uint64_t counter;
+} gost_grasshopper_cipher_ctx_ctr;
+
+typedef int (* grasshopper_init_cipher_func)(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv,
+                                             int enc);
+
+typedef int (* grasshopper_do_cipher_func)(EVP_CIPHER_CTX* ctx, unsigned char* out, const unsigned char* in,
+                                           size_t inl);
+
+typedef void (* grasshopper_destroy_cipher_func)(gost_grasshopper_cipher_ctx* c);
+
+static void gost_grasshopper_cipher_key(gost_grasshopper_cipher_ctx* c, const uint8_t* k);
+
+static void gost_grasshopper_cipher_destroy(gost_grasshopper_cipher_ctx* c);
+
+static int gost_grasshopper_cipher_init_ecb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_init_cbc(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_init_ofb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_init_cfb(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_init_ctr(EVP_CIPHER_CTX* ctx, const unsigned char* key, const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_init(EVP_CIPHER_CTX* ctx, const unsigned char* key,
+                                        const unsigned char* iv, int enc);
+
+static int gost_grasshopper_cipher_do(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                      const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_do_ecb(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                          const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_do_cbc(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                          const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_do_ofb(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                          const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_do_cfb(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                          const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_do_ctr(EVP_CIPHER_CTX* ctx, unsigned char* out,
+                                          const unsigned char* in, size_t inl);
+
+static int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX* ctx);
+
+static int gost_grasshopper_set_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params);
+
+static int gost_grasshopper_get_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params);
+
+static int gost_grasshopper_cipher_ctl(EVP_CIPHER_CTX* ctx, int type, int arg, void* ptr);
+
+static EVP_CIPHER* cipher_gost_grasshopper_create(int cipher_type, int block_size);
+
+static const int cipher_gost_grasshopper_setup(EVP_CIPHER* cipher, uint8_t mode, int iv_size, bool padding);
+
+static const EVP_CIPHER* cipher_gost_grasshopper(uint8_t mode, uint8_t num);
+
+extern const EVP_CIPHER* cipher_gost_grasshopper_ecb();
+extern const EVP_CIPHER* cipher_gost_grasshopper_cbc();
+extern const EVP_CIPHER* cipher_gost_grasshopper_ofb();
+extern const EVP_CIPHER* cipher_gost_grasshopper_cfb();
+extern const EVP_CIPHER* cipher_gost_grasshopper_ctr();
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif