GOST public key algorithm ENGINE donated to the OpenSSL by Cryptocom.

Very early version, doesn't do much yet, not even added to the build system.

1 files changed, 96 insertions, 0 deletions

diff --git a/engines/ccgost/gost89.h b/engines/ccgost/gost89.h
new file mode 100644
index 0000000000..2157852519
--- /dev/null
+++ b/engines/ccgost/gost89.h
@@ -0,0 +1,96 @@
+/**********************************************************************
+ *                        gost89.h                                    *
+ *             Copyright (c) 2005-2006 Cryptocom LTD                  *
+ *     This file is distributed under the same license as OpenSSL     *
+ *                                                                    *
+ *          Declarations for GOST 28147-89 encryption algorithm       *
+ *            No OpenSSL libraries required to compile and use        *
+ *                       this code                                    *
+ **********************************************************************/            
+#ifndef GOST89_H
+#define GOST89_H
+
+/* Typedef for unsigned 32-bit integer */
+#if __LONG_MAX__ > 2147483647L 
+typedef unsigned int u4; 
+#else 
+typedef unsigned long u4; 
+#endif 
+/* Typedef for unsigned 8-bit integer */
+typedef unsigned char byte; 
+
+/* Internal representation of GOST substitution blocks */
+typedef struct {
+		byte k8[16];
+		byte k7[16];
+		byte k6[16];
+		byte k5[16];
+		byte k4[16];
+		byte k3[16];
+		byte k2[16];
+		byte k1[16];
+} gost_subst_block;		
+
+
+/* Cipher context includes key and preprocessed  substitution block */
+typedef struct { 
+		u4 k[8]; 
+		/* Constant s-boxes -- set up in gost_init(). */ 
+		u4 k87[256],k65[256],k43[256],k21[256]; 
+} gost_ctx; 
+/* Note: encrypt and decrypt expect full blocks--padding blocks is 
+         caller's responsibility. All bulk encryption is done in 
+		 ECB mode by these calls. Other modes may be added easily 
+		 enough.                                            */
+/* Encrypt several full blocks in ECB mode */
+void gost_enc(gost_ctx *ctx, const byte *clear,byte *cipher, int blocks); 
+/* Decrypt several full blocks in ECB mode */
+void gost_dec(gost_ctx *ctx, const byte *cipher,byte *clear, int blocks); 
+/* Encrypts several full blocks in CFB mode using 8byte IV */
+void gost_enc_cfb(gost_ctx *ctx,const byte *iv,const byte *clear,byte *cipher,int  blocks);
+/* Decrypts several full blocks in CFB mode using 8byte IV */
+void gost_dec_cfb(gost_ctx *ctx,const byte *iv,const byte *cipher,byte *clear,int  blocks);
+
+/* Encrypt one  block */
+void gostcrypt(gost_ctx *c, const byte *in, byte *out);
+/* Decrypt one  block */
+void gostdecrypt(gost_ctx *c, const byte *in,byte *out);
+/* Set key into context */
+void gost_key(gost_ctx *ctx, const byte *key); 
+/* Get key from context */
+void gost_get_key(gost_ctx *ctx, byte *key);
+/* Set S-blocks into context */
+void gost_init(gost_ctx *ctx, const gost_subst_block *subst_block); 
+/* Clean up context */
+void gost_destroy(gost_ctx *ctx);
+/* Intermediate function used for calculate hash */
+void gost_enc_with_key(gost_ctx *,byte *key,byte *inblock,byte *outblock);
+/* Compute MAC of given length in bits from data */
+int gost_mac(gost_ctx *ctx,int hmac_len,const unsigned char *data,
+		unsigned int data_len,unsigned char *hmac) ;
+/* Compute MAC of given length in bits from data, using non-zero 8-byte
+ * IV (non-standard, for use in CryptoPro key transport only */
+int gost_mac_iv(gost_ctx *ctx,int hmac_len,const unsigned char *iv,const unsigned char *data,
+		unsigned int data_len,unsigned char *hmac) ;
+/* Perform one step of MAC calculation like gostcrypt */
+void mac_block(gost_ctx *c,byte *buffer,const  byte *block); 
+/* Extracts MAC value from mac state buffer */
+void get_mac(byte *buffer,int nbits,byte *out);
+/* Implements cryptopro key meshing algorithm. Expect IV to be 8-byte size*/
+void cryptopro_key_meshing(gost_ctx *ctx, unsigned char *iv);
+/* Parameter sets specified in RFC 4357 */
+extern gost_subst_block GostR3411_94_TestParamSet;
+extern gost_subst_block GostR3411_94_CryptoProParamSet;
+extern gost_subst_block Gost28147_TestParamSet;
+extern gost_subst_block Gost28147_CryptoProParamSetA;
+extern gost_subst_block Gost28147_CryptoProParamSetB;
+extern gost_subst_block Gost28147_CryptoProParamSetC;
+extern gost_subst_block Gost28147_CryptoProParamSetD;
+extern const byte CryptoProKeyMeshingKey[]; 
+#if __LONG_MAX__ > 2147483647L 
+typedef unsigned int word32; 
+#else 
+typedef unsigned long word32; 
+#endif 
+
+#endif