X-Git-Url: http://wagner.pp.ru/gitweb/?a=blobdiff_plain;f=gost89.c;h=c670bb61cb6bf8eefdc7fda790882db55cc28de0;hb=38ce652a600ca43db4996f3c2945aff39a323e36;hp=47b7ba0227c5aec79e04fac4ffc54d318c00f588;hpb=cba16944bff9d8c5dcf37be641822cd3de6d2ec1;p=openssl-gost%2Fengine.git

diff --git a/gost89.c b/gost89.c
index 47b7ba0..c670bb6 100644
--- a/gost89.c
+++ b/gost89.c
@@ -242,8 +242,15 @@ const byte CryptoProKeyMeshingKey[] = {
     0xC0, 0x86, 0xDC, 0xC2, 0xEF, 0x4C, 0xA9, 0x2B
 };
 
+const byte ACPKM_D_const[] = {
+    0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+    0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F,
+    0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+    0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F,
+};
+
 /* Initialization of gost_ctx subst blocks*/
-static void kboxinit(gost_ctx * c, const gost_subst_block * b)
+void kboxinit(gost_ctx * c, const gost_subst_block * b)
 {
     int i;
 
@@ -438,7 +445,7 @@ void gost_enc_with_key(gost_ctx * c, byte * key, byte * inblock,
     gostcrypt(c, inblock, outblock);
 }
 
-/* Set 256 bit  key into context */
+/* Set 256 bit gost89 key into context */
 void gost_key(gost_ctx * c, const byte * k)
 {
     int i, j;
@@ -449,7 +456,18 @@ void gost_key(gost_ctx * c, const byte * k)
     }
 }
 
-/* Retrieve 256-bit key from context */
+/* Set 256 bit Magma key into context */
+void magma_key(gost_ctx * c, const byte * k)
+{
+    int i, j;
+    for (i = 0, j = 0; i < 8; i++, j += 4) {
+        c->k[i] =
+            k[j + 3] | (k[j + 2] << 8) | (k[j + 1] << 16) | ((word32) k[j] <<
+                                                             24);
+    }
+}
+
+/* Retrieve 256-bit gost89 key from context */
 void gost_get_key(gost_ctx * c, byte * k)
 {
     int i, j;
@@ -461,6 +479,18 @@ void gost_get_key(gost_ctx * c, byte * k)
     }
 }
 
+/* Retrieve 256-bit magma key from context */
+void magma_get_key(gost_ctx * c, byte * k)
+{
+    int i, j;
+    for (i = 0, j = 0; i < 8; i++, j += 4) {
+        k[j + 3] = (byte) (c->k[i] & 0xFF);
+        k[j + 2] = (byte) ((c->k[i] >> 8) & 0xFF);
+        k[j + 1] = (byte) ((c->k[i] >> 16) & 0xFF);
+        k[j + 0] = (byte) ((c->k[i] >> 24) & 0xFF);
+    }
+}
+
 /* Initalize context. Provides default value for subst_block */
 void gost_init(gost_ctx * c, const gost_subst_block * b)
 {
@@ -601,3 +631,21 @@ void cryptopro_key_meshing(gost_ctx * ctx, unsigned char *iv)
     gostcrypt(ctx, iv, newiv);
     memcpy(iv, newiv, 8);
 }
+
+void acpkm_magma_key_meshing(gost_ctx * ctx)
+{
+    unsigned char newkey[32];
+    int i, j;
+    unsigned char buf[8], keybuf[8];
+
+    for (i = 0; i < 4; i++) {
+        for (j = 0; j < 8; j++) {
+            buf[j] = ACPKM_D_const[8 * i + 7 - j];
+        }
+        gostcrypt(ctx, buf, keybuf);
+        memcpy(newkey + 8 * i, keybuf + 4, 4);
+        memcpy(newkey + 8 * i + 4, keybuf, 4);
+    }
+    /* set new key */
+    gost_key(ctx, newkey);
+}