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-rw-r--r--openssl/engines/ccgost/gost89.h96
1 files changed, 96 insertions, 0 deletions
diff --git a/openssl/engines/ccgost/gost89.h b/openssl/engines/ccgost/gost89.h
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+++ b/openssl/engines/ccgost/gost89.h
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+/**********************************************************************
+ * 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