fixing E-Mail-Address & Copyright

[avr-crypto-lib.git] / bigint / bigint.h

diff --git a/bigint/bigint.h b/bigint/bigint.h
index f42ae18992d3010ae9c8da8890bf4d91040fe0d0..0ae129ccb9bbb0b04ac7d9f02832ba5ce0a78607 100644 (file)
--- a/bigint/bigint.h
+++ b/bigint/bigint.h
@@ -1,7 +1,7 @@
 /* bigint.h */
 /*
     This file is part of the ARM-Crypto-Lib.
-    Copyright (C) 2008  Daniel Otte (daniel.otte@rub.de)
+    Copyright (C) 2006-2015 Daniel Otte (bg@nerilex.org)
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -30,13 +30,28 @@
 
 #include <stddef.h>
 #include <stdint.h>
+#include <limits.h>
 
+#define BIGINT_WORD_SIZE 8
+
+#if BIGINT_WORD_SIZE == 8
 typedef uint8_t  bigint_word_t;
 typedef uint16_t bigint_wordplus_t;
 typedef int16_t  bigint_wordplus_signed_t;
-#define BIGINT_WORD_SIZE 8
-
-#define BIGINT_FBS_MASK (BIGINT_WORD_SIZE-1) /* the last five bits indicate which is the first bit set */
+#elif BIGINT_WORD_SIZE == 16
+typedef uint16_t  bigint_word_t;
+typedef uint32_t bigint_wordplus_t;
+typedef int32_t  bigint_wordplus_signed_t;
+#elif BIGINT_WORD_SIZE == 32
+typedef uint32_t  bigint_word_t;
+typedef uint64_t bigint_wordplus_t;
+typedef int64_t  bigint_wordplus_signed_t;
+#else
+#error "INVALID VALUE FOR BIGINT_WORD_SIZE"
+#endif
+
+
+#define BIGINT_FBS_MASK (BIGINT_WORD_SIZE - 1) /* the last five bits indicate which is the first bit set */
 #define BIGINT_NEG_MASK 0x80 /* this bit indicates a negative value */
 
 typedef size_t bigint_length_t;
@@ -53,8 +68,8 @@ typedef struct{
 /******************************************************************************/
 
 void   bigint_adjust(bigint_t *a);
-uint32_t bigint_get_first_set_bit(const bigint_t *a);
-uint32_t bigint_get_last_set_bit(const bigint_t *a);
+int32_t bigint_get_first_set_bit(const bigint_t *a);
+int32_t bigint_get_last_set_bit(const bigint_t *a);
 bigint_length_t bigint_length_b(const bigint_t *a);
 bigint_length_t bigint_length_B(const bigint_t *a);
 void   bigint_copy(bigint_t *dest, const bigint_t *src);
@@ -65,7 +80,10 @@ int8_t bigint_cmp_u(const bigint_t * a, const bigint_t * b);
 void   bigint_add_s(bigint_t *dest, const bigint_t *a, const bigint_t *b);
 void   bigint_sub_s(bigint_t *dest, const bigint_t *a, const bigint_t *b);
 int8_t bigint_cmp_s(const bigint_t *a, const bigint_t *b);
+void   bigint_shiftleft_bits(bigint_t *a, uint8_t shift);
 void   bigint_shiftleft(bigint_t *a, bigint_length_t shift);
+void   bigint_shiftright_1bit(bigint_t *a);
+void   bigint_shiftright_1word(bigint_t *a);
 void   bigint_shiftright(bigint_t *a, bigint_length_t shift);
 void   bigint_xor(bigint_t *dest, const bigint_t *a);
 void   bigint_set_zero(bigint_t *a);
@@ -87,6 +105,7 @@ void   bigint_mont_trans(bigint_t *dest, const bigint_t *a, const bigint_t *m);
 void   bigint_expmod_u(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
 void   bigint_expmod_u_sam(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
 void   bigint_expmod_u_mont_sam(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r);
+void   bigint_expmod_u_mont_accel(bigint_t *dest, const bigint_t *a, const bigint_t *exp, const bigint_t *r, const bigint_t *m_);
 
 
 #endif /*BIGINT_H_*/