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-rw-r--r--srtp/crypto/math/CVS/Entries5
-rw-r--r--srtp/crypto/math/CVS/Repository1
-rw-r--r--srtp/crypto/math/CVS/Root1
-rw-r--r--srtp/crypto/math/datatypes.c600
-rw-r--r--srtp/crypto/math/gf2_8.c83
-rw-r--r--srtp/crypto/math/math.c962
-rw-r--r--srtp/crypto/math/stat.c367
7 files changed, 0 insertions, 2019 deletions
diff --git a/srtp/crypto/math/CVS/Entries b/srtp/crypto/math/CVS/Entries
deleted file mode 100644
index 292b955..0000000
--- a/srtp/crypto/math/CVS/Entries
+++ /dev/null
@@ -1,5 +0,0 @@
-/datatypes.c/1.9/Tue Jul 18 19:45:46 2006//
-/gf2_8.c/1.3/Thu Jun 8 17:00:28 2006//
-/math.c/1.6/Thu Jun 8 17:00:28 2006//
-/stat.c/1.7/Wed Jul 12 22:22:09 2006//
-D
diff --git a/srtp/crypto/math/CVS/Repository b/srtp/crypto/math/CVS/Repository
deleted file mode 100644
index 739b84b..0000000
--- a/srtp/crypto/math/CVS/Repository
+++ /dev/null
@@ -1 +0,0 @@
-srtp/crypto/math
diff --git a/srtp/crypto/math/CVS/Root b/srtp/crypto/math/CVS/Root
deleted file mode 100644
index 05e15d8..0000000
--- a/srtp/crypto/math/CVS/Root
+++ /dev/null
@@ -1 +0,0 @@
-srtp.cvs.sourceforge.net:/cvsroot/srtp
diff --git a/srtp/crypto/math/datatypes.c b/srtp/crypto/math/datatypes.c
deleted file mode 100644
index 61bf34f..0000000
--- a/srtp/crypto/math/datatypes.c
+++ /dev/null
@@ -1,600 +0,0 @@
-/*
- * datatypes.c
- *
- * data types for finite fields and functions for input, output, and
- * manipulation
- *
- * David A. McGrew
- * Cisco Systems, Inc.
- */
-/*
- *
- * Copyright (c) 2001-2006 Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * Neither the name of the Cisco Systems, Inc. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "datatypes.h"
-
-int
-octet_weight[256] = {
- 0, 1, 1, 2, 1, 2, 2, 3,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 5, 6, 6, 7, 6, 7, 7, 8
-};
-
-int
-octet_get_weight(uint8_t octet) {
- extern int octet_weight[256];
-
- return octet_weight[octet];
-}
-
-/*
- * bit_string is a buffer that is used to hold output strings, e.g.
- * for printing.
- */
-
-/* the value MAX_PRINT_STRING_LEN is defined in datatypes.h */
-
-char bit_string[MAX_PRINT_STRING_LEN];
-
-uint8_t
-nibble_to_hex_char(uint8_t nibble) {
- char buf[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
- return buf[nibble & 0xF];
-}
-
-char *
-octet_string_hex_string(const void *s, int length) {
- const uint8_t *str = (const uint8_t *)s;
- int i;
-
- /* double length, since one octet takes two hex characters */
- length *= 2;
-
- /* truncate string if it would be too long */
- if (length > MAX_PRINT_STRING_LEN)
- length = MAX_PRINT_STRING_LEN-1;
-
- for (i=0; i < length; i+=2) {
- bit_string[i] = nibble_to_hex_char(*str >> 4);
- bit_string[i+1] = nibble_to_hex_char(*str++ & 0xF);
- }
- bit_string[i] = 0; /* null terminate string */
- return bit_string;
-}
-
-inline int
-hex_char_to_nibble(uint8_t c) {
- switch(c) {
- case ('0'): return 0x0;
- case ('1'): return 0x1;
- case ('2'): return 0x2;
- case ('3'): return 0x3;
- case ('4'): return 0x4;
- case ('5'): return 0x5;
- case ('6'): return 0x6;
- case ('7'): return 0x7;
- case ('8'): return 0x8;
- case ('9'): return 0x9;
- case ('a'): return 0xa;
- case ('A'): return 0xa;
- case ('b'): return 0xb;
- case ('B'): return 0xb;
- case ('c'): return 0xc;
- case ('C'): return 0xc;
- case ('d'): return 0xd;
- case ('D'): return 0xd;
- case ('e'): return 0xe;
- case ('E'): return 0xe;
- case ('f'): return 0xf;
- case ('F'): return 0xf;
- default: return -1; /* this flags an error */
- }
- /* NOTREACHED */
- return -1; /* this keeps compilers from complaining */
-}
-
-int
-is_hex_string(char *s) {
- while(*s != 0)
- if (hex_char_to_nibble(*s++) == -1)
- return 0;
- return 1;
-}
-
-/*
- * hex_string_to_octet_string converts a hexadecimal string
- * of length 2 * len to a raw octet string of length len
- */
-
-int
-hex_string_to_octet_string(char *raw, char *hex, int len) {
- uint8_t x;
- int tmp;
- int hex_len;
-
- hex_len = 0;
- while (hex_len < len) {
- tmp = hex_char_to_nibble(hex[0]);
- if (tmp == -1)
- return hex_len;
- x = (tmp << 4);
- hex_len++;
- tmp = hex_char_to_nibble(hex[1]);
- if (tmp == -1)
- return hex_len;
- x |= (tmp & 0xff);
- hex_len++;
- *raw++ = x;
- hex += 2;
- }
- return hex_len;
-}
-
-char *
-v128_hex_string(v128_t *x) {
- int i, j;
-
- for (i=j=0; i < 16; i++) {
- bit_string[j++] = nibble_to_hex_char(x->v8[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x->v8[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-v128_bit_string(v128_t *x) {
- int j, index;
- uint32_t mask;
-
- for (j=index=0; j < 4; j++) {
- for (mask=0x80000000; mask > 0; mask >>= 1) {
- if (x->v32[j] & mask)
- bit_string[index] = '1';
- else
- bit_string[index] = '0';
- ++index;
- }
- }
- bit_string[128] = 0; /* null terminate string */
-
- return bit_string;
-}
-
-void
-v128_copy_octet_string(v128_t *x, const uint8_t s[16]) {
-#ifdef ALIGNMENT_32BIT_REQUIRED
- if ((((uint32_t) &s[0]) & 0x3) != 0)
-#endif
- {
- x->v8[0] = s[0];
- x->v8[1] = s[1];
- x->v8[2] = s[2];
- x->v8[3] = s[3];
- x->v8[4] = s[4];
- x->v8[5] = s[5];
- x->v8[6] = s[6];
- x->v8[7] = s[7];
- x->v8[8] = s[8];
- x->v8[9] = s[9];
- x->v8[10] = s[10];
- x->v8[11] = s[11];
- x->v8[12] = s[12];
- x->v8[13] = s[13];
- x->v8[14] = s[14];
- x->v8[15] = s[15];
- }
-#ifdef ALIGNMENT_32BIT_REQUIRED
- else
- {
- v128_t *v = (v128_t *) &s[0];
-
- v128_copy(x,v);
- }
-#endif
-}
-
-#ifndef DATATYPES_USE_MACROS /* little functions are not macros */
-
-void
-v128_set_to_zero(v128_t *x) {
- _v128_set_to_zero(x);
-}
-
-void
-v128_copy(v128_t *x, const v128_t *y) {
- _v128_copy(x, y);
-}
-
-void
-v128_xor(v128_t *z, v128_t *x, v128_t *y) {
- _v128_xor(z, x, y);
-}
-
-void
-v128_and(v128_t *z, v128_t *x, v128_t *y) {
- _v128_and(z, x, y);
-}
-
-void
-v128_or(v128_t *z, v128_t *x, v128_t *y) {
- _v128_or(z, x, y);
-}
-
-void
-v128_complement(v128_t *x) {
- _v128_complement(x);
-}
-
-int
-v128_is_eq(const v128_t *x, const v128_t *y) {
- return _v128_is_eq(x, y);
-}
-
-int
-v128_xor_eq(v128_t *x, const v128_t *y) {
- return _v128_xor_eq(x, y);
-}
-
-int
-v128_get_bit(const v128_t *x, int i) {
- return _v128_get_bit(x, i);
-}
-
-void
-v128_set_bit(v128_t *x, int i) {
- _v128_set_bit(x, i);
-}
-
-void
-v128_clear_bit(v128_t *x, int i){
- _v128_clear_bit(x, i);
-}
-
-void
-v128_set_bit_to(v128_t *x, int i, int y){
- _v128_set_bit_to(x, i, y);
-}
-
-
-#endif /* DATATYPES_USE_MACROS */
-
-void
-v128_right_shift(v128_t *x, int index) {
- const int base_index = index >> 5;
- const int bit_index = index & 31;
- int i, from;
- uint32_t b;
-
- if (index > 127) {
- v128_set_to_zero(x);
- return;
- }
-
- if (bit_index == 0) {
-
- /* copy each word from left size to right side */
- x->v32[4-1] = x->v32[4-1-base_index];
- for (i=4-1; i > base_index; i--)
- x->v32[i-1] = x->v32[i-1-base_index];
-
- } else {
-
- /* set each word to the "or" of the two bit-shifted words */
- for (i = 4; i > base_index; i--) {
- from = i-1 - base_index;
- b = x->v32[from] << bit_index;
- if (from > 0)
- b |= x->v32[from-1] >> (32-bit_index);
- x->v32[i-1] = b;
- }
-
- }
-
- /* now wrap up the final portion */
- for (i=0; i < base_index; i++)
- x->v32[i] = 0;
-
-}
-
-void
-v128_left_shift(v128_t *x, int index) {
- int i;
- const int base_index = index >> 5;
- const int bit_index = index & 31;
-
- if (index > 127) {
- v128_set_to_zero(x);
- return;
- }
-
- if (bit_index == 0) {
- for (i=0; i < 4 - base_index; i++)
- x->v32[i] = x->v32[i+base_index];
- } else {
- for (i=0; i < 4 - base_index - 1; i++)
- x->v32[i] = (x->v32[i+base_index] >> bit_index) ^
- (x->v32[i+base_index+1] << (32 - bit_index));
- x->v32[4 - base_index-1] = x->v32[4-1] >> bit_index;
- }
-
- /* now wrap up the final portion */
- for (i = 4 - base_index; i < 4; i++)
- x->v32[i] = 0;
-
-}
-
-
-int
-octet_string_is_eq(uint8_t *a, uint8_t *b, int len) {
- uint8_t *end = b + len;
- while (b < end)
- if (*a++ != *b++)
- return 1;
- return 0;
-}
-
-void
-octet_string_set_to_zero(uint8_t *s, int len) {
- uint8_t *end = s + len;
-
- do {
- *s = 0;
- } while (++s < end);
-
-}
-
-
-/*
- * From RFC 1521: The Base64 Alphabet
- *
- * Value Encoding Value Encoding Value Encoding Value Encoding
- * 0 A 17 R 34 i 51 z
- * 1 B 18 S 35 j 52 0
- * 2 C 19 T 36 k 53 1
- * 3 D 20 U 37 l 54 2
- * 4 E 21 V 38 m 55 3
- * 5 F 22 W 39 n 56 4
- * 6 G 23 X 40 o 57 5
- * 7 H 24 Y 41 p 58 6
- * 8 I 25 Z 42 q 59 7
- * 9 J 26 a 43 r 60 8
- * 10 K 27 b 44 s 61 9
- * 11 L 28 c 45 t 62 +
- * 12 M 29 d 46 u 63 /
- * 13 N 30 e 47 v
- * 14 O 31 f 48 w (pad) =
- * 15 P 32 g 49 x
- * 16 Q 33 h 50 y
- */
-
-int
-base64_char_to_sextet(uint8_t c) {
- switch(c) {
- case 'A':
- return 0;
- case 'B':
- return 1;
- case 'C':
- return 2;
- case 'D':
- return 3;
- case 'E':
- return 4;
- case 'F':
- return 5;
- case 'G':
- return 6;
- case 'H':
- return 7;
- case 'I':
- return 8;
- case 'J':
- return 9;
- case 'K':
- return 10;
- case 'L':
- return 11;
- case 'M':
- return 12;
- case 'N':
- return 13;
- case 'O':
- return 14;
- case 'P':
- return 15;
- case 'Q':
- return 16;
- case 'R':
- return 17;
- case 'S':
- return 18;
- case 'T':
- return 19;
- case 'U':
- return 20;
- case 'V':
- return 21;
- case 'W':
- return 22;
- case 'X':
- return 23;
- case 'Y':
- return 24;
- case 'Z':
- return 25;
- case 'a':
- return 26;
- case 'b':
- return 27;
- case 'c':
- return 28;
- case 'd':
- return 29;
- case 'e':
- return 30;
- case 'f':
- return 31;
- case 'g':
- return 32;
- case 'h':
- return 33;
- case 'i':
- return 34;
- case 'j':
- return 35;
- case 'k':
- return 36;
- case 'l':
- return 37;
- case 'm':
- return 38;
- case 'n':
- return 39;
- case 'o':
- return 40;
- case 'p':
- return 41;
- case 'q':
- return 42;
- case 'r':
- return 43;
- case 's':
- return 44;
- case 't':
- return 45;
- case 'u':
- return 46;
- case 'v':
- return 47;
- case 'w':
- return 48;
- case 'x':
- return 49;
- case 'y':
- return 50;
- case 'z':
- return 51;
- case '0':
- return 52;
- case '1':
- return 53;
- case '2':
- return 54;
- case '3':
- return 55;
- case '4':
- return 56;
- case '5':
- return 57;
- case '6':
- return 58;
- case '7':
- return 59;
- case '8':
- return 60;
- case '9':
- return 61;
- case '+':
- return 62;
- case '/':
- return 63;
- case '=':
- return 64;
- default:
- break;
- }
- return -1;
-}
-
-/*
- * base64_string_to_octet_string converts a hexadecimal string
- * of length 2 * len to a raw octet string of length len
- */
-
-int
-base64_string_to_octet_string(char *raw, char *base64, int len) {
- uint8_t x;
- int tmp;
- int base64_len;
-
- base64_len = 0;
- while (base64_len < len) {
- tmp = base64_char_to_sextet(base64[0]);
- if (tmp == -1)
- return base64_len;
- x = (tmp << 6);
- base64_len++;
- tmp = base64_char_to_sextet(base64[1]);
- if (tmp == -1)
- return base64_len;
- x |= (tmp & 0xffff);
- base64_len++;
- *raw++ = x;
- base64 += 2;
- }
- return base64_len;
-}
diff --git a/srtp/crypto/math/gf2_8.c b/srtp/crypto/math/gf2_8.c
deleted file mode 100644
index 8a112ba..0000000
--- a/srtp/crypto/math/gf2_8.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * gf2_8.c
- *
- * GF(256) finite field implementation, with the representation used
- * in the AES cipher.
- *
- * David A. McGrew
- * Cisco Systems, Inc.
- */
-
-/*
- *
- * Copyright (c) 2001-2006, Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * Neither the name of the Cisco Systems, Inc. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-
-#include "datatypes.h"
-#include "gf2_8.h"
-
-/* gf2_8_shift() moved to gf2_8.h as an inline function */
-
-inline gf2_8
-gf2_8_multiply(gf2_8 x, gf2_8 y) {
- gf2_8 z = 0;
-
- if (y & 1) z ^= x; x = gf2_8_shift(x);
- if (y & 2) z ^= x; x = gf2_8_shift(x);
- if (y & 4) z ^= x; x = gf2_8_shift(x);
- if (y & 8) z ^= x; x = gf2_8_shift(x);
- if (y & 16) z ^= x; x = gf2_8_shift(x);
- if (y & 32) z ^= x; x = gf2_8_shift(x);
- if (y & 64) z ^= x; x = gf2_8_shift(x);
- if (y & 128) z ^= x;
-
- return z;
-}
-
-
-/* this should use the euclidean algorithm */
-
-gf2_8
-gf2_8_compute_inverse(gf2_8 x) {
- unsigned int i;
-
- if (x == 0) return 0; /* zero is a special case */
- for (i=0; i < 256; i++)
- if (gf2_8_multiply((gf2_8) i, x) == 1)
- return (gf2_8) i;
-
- return 0;
-}
-
diff --git a/srtp/crypto/math/math.c b/srtp/crypto/math/math.c
deleted file mode 100644
index 3e61997..0000000
--- a/srtp/crypto/math/math.c
+++ /dev/null
@@ -1,962 +0,0 @@
-/*
- * math.c
- *
- * crypto math operations and data types
- *
- * David A. McGrew
- * Cisco Systems, Inc.
- */
-/*
- *
- * Copyright (c) 2001-2006 Cisco Systems, Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * Neither the name of the Cisco Systems, Inc. nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "crypto_math.h"
-#include <stdlib.h> /* malloc() used in bitvector_alloc */
-
-int
-octet_weight[256] = {
- 0, 1, 1, 2, 1, 2, 2, 3,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 1, 2, 2, 3, 2, 3, 3, 4,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 2, 3, 3, 4, 3, 4, 4, 5,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 3, 4, 4, 5, 4, 5, 5, 6,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 4, 5, 5, 6, 5, 6, 6, 7,
- 5, 6, 6, 7, 6, 7, 7, 8
-};
-
-int
-low_bit[256] = {
- -1, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 5, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 6, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 5, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 7, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 5, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 6, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 5, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0,
- 4, 0, 1, 0, 2, 0, 1, 0,
- 3, 0, 1, 0, 2, 0, 1, 0
-};
-
-
-int
-high_bit[256] = {
- -1, 0, 1, 1, 2, 2, 2, 2,
- 3, 3, 3, 3, 3, 3, 3, 3,
- 4, 4, 4, 4, 4, 4, 4, 4,
- 4, 4, 4, 4, 4, 4, 4, 4,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 5, 5, 5, 5, 5, 5, 5, 5,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 6, 6, 6, 6, 6, 6, 6, 6,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7,
- 7, 7, 7, 7, 7, 7, 7, 7
-};
-
-int
-octet_get_weight(uint8_t octet) {
- extern int octet_weight[256];
-
- return octet_weight[octet];
-}
-
-unsigned char
-v32_weight(v32_t a) {
- unsigned int wt = 0;
-
- wt += octet_weight[a.v8[0]]; /* note: endian-ness makes no difference */
- wt += octet_weight[a.v8[1]];
- wt += octet_weight[a.v8[2]];
- wt += octet_weight[a.v8[3]];
-
- return wt;
-}
-
-inline unsigned char
-v32_distance(v32_t x, v32_t y) {
- x.value ^= y.value;
- return v32_weight(x);
-}
-
-unsigned int
-v32_dot_product(v32_t a, v32_t b) {
- a.value &= b.value;
- return v32_weight(a) & 1;
-}
-
-/*
- * _bit_string returns a NULL-terminated character string suitable for
- * printing
- */
-
-#define MAX_STRING_LENGTH 1024
-
-char bit_string[MAX_STRING_LENGTH];
-
-char *
-octet_bit_string(uint8_t x) {
- int mask, index;
-
- for (mask = 1, index = 0; mask < 256; mask <<= 1)
- if ((x & mask) == 0)
- bit_string[index++] = '0';
- else
- bit_string[index++] = '1';
-
- bit_string[index++] = 0; /* NULL terminate string */
-
- return bit_string;
-}
-
-char *
-v16_bit_string(v16_t x) {
- int i, mask, index;
-
- for (i = index = 0; i < 2; i++) {
- for (mask = 1; mask < 256; mask <<= 1)
- if ((x.v8[i] & mask) == 0)
- bit_string[index++] = '0';
- else
- bit_string[index++] = '1';
- }
- bit_string[index++] = 0; /* NULL terminate string */
- return bit_string;
-}
-
-char *
-v32_bit_string(v32_t x) {
- int i, mask, index;
-
- for (i = index = 0; i < 4; i++) {
- for (mask = 128; mask > 0; mask >>= 1)
- if ((x.v8[i] & mask) == 0)
- bit_string[index++] = '0';
- else
- bit_string[index++] = '1';
- }
- bit_string[index++] = 0; /* NULL terminate string */
- return bit_string;
-}
-
-char *
-v64_bit_string(const v64_t *x) {
- int i, mask, index;
-
- for (i = index = 0; i < 8; i++) {
- for (mask = 1; mask < 256; mask <<= 1)
- if ((x->v8[i] & mask) == 0)
- bit_string[index++] = '0';
- else
- bit_string[index++] = '1';
- }
- bit_string[index++] = 0; /* NULL terminate string */
- return bit_string;
-}
-
-char *
-v128_bit_string(v128_t *x) {
- int j, index;
- uint32_t mask;
-
- for (j=index=0; j < 4; j++) {
- for (mask=0x80000000; mask > 0; mask >>= 1) {
- if (x->v32[j] & mask)
- bit_string[index] = '1';
- else
- bit_string[index] = '0';
- ++index;
- }
- }
- bit_string[128] = 0; /* null terminate string */
-
- return bit_string;
-}
-
-uint8_t
-nibble_to_hex_char(uint8_t nibble) {
- char buf[16] = {'0', '1', '2', '3', '4', '5', '6', '7',
- '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
- return buf[nibble & 0xF];
-}
-
-char *
-octet_hex_string(uint8_t x) {
-
- bit_string[0] = nibble_to_hex_char(x >> 4);
- bit_string[1] = nibble_to_hex_char(x & 0xF);
-
- bit_string[2] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-octet_string_hex_string(const void *str, int length) {
- const uint8_t *s = str;
- int i;
-
- /* double length, since one octet takes two hex characters */
- length *= 2;
-
- /* truncate string if it would be too long */
- if (length > MAX_STRING_LENGTH)
- length = MAX_STRING_LENGTH-1;
-
- for (i=0; i < length; i+=2) {
- bit_string[i] = nibble_to_hex_char(*s >> 4);
- bit_string[i+1] = nibble_to_hex_char(*s++ & 0xF);
- }
- bit_string[i] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-v16_hex_string(v16_t x) {
- int i, j;
-
- for (i=j=0; i < 2; i++) {
- bit_string[j++] = nibble_to_hex_char(x.v8[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x.v8[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-v32_hex_string(v32_t x) {
- int i, j;
-
- for (i=j=0; i < 4; i++) {
- bit_string[j++] = nibble_to_hex_char(x.v8[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x.v8[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-v64_hex_string(const v64_t *x) {
- int i, j;
-
- for (i=j=0; i < 8; i++) {
- bit_string[j++] = nibble_to_hex_char(x->v8[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x->v8[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-v128_hex_string(v128_t *x) {
- int i, j;
-
- for (i=j=0; i < 16; i++) {
- bit_string[j++] = nibble_to_hex_char(x->v8[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x->v8[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-char *
-char_to_hex_string(char *x, int num_char) {
- int i, j;
-
- if (num_char >= 16)
- num_char = 16;
- for (i=j=0; i < num_char; i++) {
- bit_string[j++] = nibble_to_hex_char(x[i] >> 4);
- bit_string[j++] = nibble_to_hex_char(x[i] & 0xF);
- }
-
- bit_string[j] = 0; /* null terminate string */
- return bit_string;
-}
-
-int
-hex_char_to_nibble(uint8_t c) {
- switch(c) {
- case ('0'): return 0x0;
- case ('1'): return 0x1;
- case ('2'): return 0x2;
- case ('3'): return 0x3;
- case ('4'): return 0x4;
- case ('5'): return 0x5;
- case ('6'): return 0x6;
- case ('7'): return 0x7;
- case ('8'): return 0x8;
- case ('9'): return 0x9;
- case ('a'): return 0xa;
- case ('A'): return 0xa;
- case ('b'): return 0xb;
- case ('B'): return 0xb;
- case ('c'): return 0xc;
- case ('C'): return 0xc;
- case ('d'): return 0xd;
- case ('D'): return 0xd;
- case ('e'): return 0xe;
- case ('E'): return 0xe;
- case ('f'): return 0xf;
- case ('F'): return 0xf;
- default: return -1; /* this flags an error */
- }
- /* NOTREACHED */
- return -1; /* this keeps compilers from complaining */
-}
-
-int
-is_hex_string(char *s) {
- while(*s != 0)
- if (hex_char_to_nibble(*s++) == -1)
- return 0;
- return 1;
-}
-
-uint8_t
-hex_string_to_octet(char *s) {
- uint8_t x;
-
- x = (hex_char_to_nibble(s[0]) << 4)
- | hex_char_to_nibble(s[1] & 0xFF);
-
- return x;
-}
-
-/*
- * hex_string_to_octet_string converts a hexadecimal string
- * of length 2 * len to a raw octet string of length len
- */
-
-int
-hex_string_to_octet_string(char *raw, char *hex, int len) {
- uint8_t x;
- int tmp;
- int hex_len;
-
- hex_len = 0;
- while (hex_len < len) {
- tmp = hex_char_to_nibble(hex[0]);
- if (tmp == -1)
- return hex_len;
- x = (tmp << 4);
- hex_len++;
- tmp = hex_char_to_nibble(hex[1]);
- if (tmp == -1)
- return hex_len;
- x |= (tmp & 0xff);
- hex_len++;
- *raw++ = x;
- hex += 2;
- }
- return hex_len;
-}
-
-v16_t
-hex_string_to_v16(char *s) {
- v16_t x;
- int i, j;
-
- for (i=j=0; i < 4; i += 2, j++) {
- x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
- | hex_char_to_nibble(s[i+1] & 0xFF);
- }
- return x;
-}
-
-v32_t
-hex_string_to_v32(char *s) {
- v32_t x;
- int i, j;
-
- for (i=j=0; i < 8; i += 2, j++) {
- x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
- | hex_char_to_nibble(s[i+1] & 0xFF);
- }
- return x;
-}
-
-v64_t
-hex_string_to_v64(char *s) {
- v64_t x;
- int i, j;
-
- for (i=j=0; i < 16; i += 2, j++) {
- x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
- | hex_char_to_nibble(s[i+1] & 0xFF);
- }
- return x;
-}
-
-v128_t
-hex_string_to_v128(char *s) {
- v128_t x;
- int i, j;
-
- for (i=j=0; i < 32; i += 2, j++) {
- x.v8[j] = (hex_char_to_nibble(s[i]) << 4)
- | hex_char_to_nibble(s[i+1] & 0xFF);
- }
- return x;
-}
-
-
-
-/*
- * the matrix A[] is stored in column format, i.e., A[i] is the ith
- * column of the matrix
- */
-
-uint8_t
-A_times_x_plus_b(uint8_t A[8], uint8_t x, uint8_t b) {
- int index = 0;
- unsigned mask;
-
- for (mask=1; mask < 256; mask *= 2) {
- if (x & mask)
- b^= A[index];
- ++index;
- }
-
- return b;
-}
-
-inline void
-v16_copy_octet_string(v16_t *x, const uint8_t s[2]) {
- x->v8[0] = s[0];
- x->v8[1] = s[1];
-}
-
-inline void
-v32_copy_octet_string(v32_t *x, const uint8_t s[4]) {
- x->v8[0] = s[0];
- x->v8[1] = s[1];
- x->v8[2] = s[2];
- x->v8[3] = s[3];
-}
-
-inline void
-v64_copy_octet_string(v64_t *x, const uint8_t s[8]) {
- x->v8[0] = s[0];
- x->v8[1] = s[1];
- x->v8[2] = s[2];
- x->v8[3] = s[3];
- x->v8[4] = s[4];
- x->v8[5] = s[5];
- x->v8[6] = s[6];
- x->v8[7] = s[7];
-}
-
-void
-v128_copy_octet_string(v128_t *x, const uint8_t s[16]) {
- x->v8[0] = s[0];
- x->v8[1] = s[1];
- x->v8[2] = s[2];
- x->v8[3] = s[3];
- x->v8[4] = s[4];
- x->v8[5] = s[5];
- x->v8[6] = s[6];
- x->v8[7] = s[7];
- x->v8[8] = s[8];
- x->v8[9] = s[9];
- x->v8[10] = s[10];
- x->v8[11] = s[11];
- x->v8[12] = s[12];
- x->v8[13] = s[13];
- x->v8[14] = s[14];
- x->v8[15] = s[15];
-
-}
-
-#ifndef DATATYPES_USE_MACROS /* little functions are not macros */
-
-void
-v128_set_to_zero(v128_t *x) {
- _v128_set_to_zero(x);
-}
-
-void
-v128_copy(v128_t *x, const v128_t *y) {
- _v128_copy(x, y);
-}
-
-void
-v128_xor(v128_t *z, v128_t *x, v128_t *y) {
- _v128_xor(z, x, y);
-}
-
-void
-v128_and(v128_t *z, v128_t *x, v128_t *y) {
- _v128_and(z, x, y);
-}
-
-void
-v128_or(v128_t *z, v128_t *x, v128_t *y) {
- _v128_or(z, x, y);
-}
-
-void
-v128_complement(v128_t *x) {
- _v128_complement(x);
-}
-
-int
-v128_is_eq(const v128_t *x, const v128_t *y) {
- return _v128_is_eq(x, y);
-}
-
-int
-v128_get_bit(const v128_t *x, int i) {
- return _v128_get_bit(x, i);
-}
-
-void
-v128_set_bit(v128_t *x, int i) {
- _v128_set_bit(x, i);
-}
-
-void
-v128_clear_bit(v128_t *x, int i){
- _v128_clear_bit(x, i);
-}
-
-void
-v128_set_bit_to(v128_t *x, int i, int y){
- _v128_set_bit_to(x, i, y);
-}
-
-
-#endif /* DATATYPES_USE_MACROS */
-
-
-inline void
-v128_left_shift2(v128_t *x, int num_bits) {
- int i;
- int word_shift = num_bits >> 5;
- int bit_shift = num_bits & 31;
-
- for (i=0; i < (4-word_shift); i++) {
- x->v32[i] = x->v32[i+word_shift] << bit_shift;
- }
-
- for ( ; i < word_shift; i++) {
- x->v32[i] = 0;
- }
-
-}
-
-void
-v128_right_shift(v128_t *x, int index) {
- const int base_index = index >> 5;
- const int bit_index = index & 31;
- int i, from;
- uint32_t b;
-
- if (index > 127) {
- v128_set_to_zero(x);
- return;
- }
-
- if (bit_index == 0) {
-
- /* copy each word from left size to right side */
- x->v32[4-1] = x->v32[4-1-base_index];
- for (i=4-1; i > base_index; i--)
- x->v32[i-1] = x->v32[i-1-base_index];
-
- } else {
-
- /* set each word to the "or" of the two bit-shifted words */
- for (i = 4; i > base_index; i--) {
- from = i-1 - base_index;
- b = x->v32[from] << bit_index;
- if (from > 0)
- b |= x->v32[from-1] >> (32-bit_index);
- x->v32[i-1] = b;
- }
-
- }
-
- /* now wrap up the final portion */
- for (i=0; i < base_index; i++)
- x->v32[i] = 0;
-
-}
-
-void
-v128_left_shift(v128_t *x, int index) {
- int i;
- const int base_index = index >> 5;
- const int bit_index = index & 31;
-
- if (index > 127) {
- v128_set_to_zero(x);
- return;
- }
-
- if (bit_index == 0) {
- for (i=0; i < 4 - base_index; i++)
- x->v32[i] = x->v32[i+base_index];
- } else {
- for (i=0; i < 4 - base_index - 1; i++)
- x->v32[i] = (x->v32[i+base_index] << bit_index) ^
- (x->v32[i+base_index+1] >> (32 - bit_index));
- x->v32[4 - base_index-1] = x->v32[4-1] << bit_index;
- }
-
- /* now wrap up the final portion */
- for (i = 4 - base_index; i < 4; i++)
- x->v32[i] = 0;
-
-}
-
-
-#if 0
-void
-v128_add(v128_t *z, v128_t *x, v128_t *y) {
- /* integer addition modulo 2^128 */
-
-#ifdef WORDS_BIGENDIAN
- uint64_t tmp;
-
- tmp = x->v32[3] + y->v32[3];
- z->v32[3] = (uint32_t) tmp;
-
- tmp = x->v32[2] + y->v32[2] + (tmp >> 32);
- z->v32[2] = (uint32_t) tmp;
-
- tmp = x->v32[1] + y->v32[1] + (tmp >> 32);
- z->v32[1] = (uint32_t) tmp;
-
- tmp = x->v32[0] + y->v32[0] + (tmp >> 32);
- z->v32[0] = (uint32_t) tmp;
-
-#else /* assume little endian architecture */
- uint64_t tmp;
-
- tmp = htonl(x->v32[3]) + htonl(y->v32[3]);
- z->v32[3] = ntohl((uint32_t) tmp);
-
- tmp = htonl(x->v32[2]) + htonl(y->v32[2]) + htonl(tmp >> 32);
- z->v32[2] = ntohl((uint32_t) tmp);
-
- tmp = htonl(x->v32[1]) + htonl(y->v32[1]) + htonl(tmp >> 32);
- z->v32[1] = ntohl((uint32_t) tmp);
-
- tmp = htonl(x->v32[0]) + htonl(y->v32[0]) + htonl(tmp >> 32);
- z->v32[0] = ntohl((uint32_t) tmp);
-
-#endif /* WORDS_BIGENDIAN */
-
-}
-#endif
-
-int
-octet_string_is_eq(uint8_t *a, uint8_t *b, int len) {
- uint8_t *end = b + len;
- while (b < end)
- if (*a++ != *b++)
- return 1;
- return 0;
-}
-
-void
-octet_string_set_to_zero(uint8_t *s, int len) {
- uint8_t *end = s + len;
-
- do {
- *s = 0;
- } while (++s < end);
-
-}
-
-/* functions manipulating bit_vector_t */
-
-#define BITVECTOR_MAX_WORDS 5
-
-int
-bitvector_alloc(bitvector_t *v, unsigned long length) {
- unsigned long l = (length + bytes_per_word - 1) / bytes_per_word;
- int i;
-
- /* allocate memory, then set parameters */
- if (l > BITVECTOR_MAX_WORDS)
- return -1;
- else
- l = BITVECTOR_MAX_WORDS;
- v->word = malloc(l);
- if (v->word == NULL)
- return -1;
- v->length = length;
-
- /* initialize bitvector to zero */
- for (i=0; i < (length >> 5); i++) {
- v->word = 0;
- }
-
- return 0;
-}
-
-void
-bitvector_set_bit(bitvector_t *v, int bit_index) {
-
- v->word[(bit_index >> 5)] |= (1 << (bit_index & 31));
-
-}
-
-int
-bitvector_get_bit(const bitvector_t *v, int bit_index) {
-
- return ((v->word[(bit_index >> 5)]) >> (bit_index & 31)) & 1;
-
-}
-
-#include <stdio.h>
-
-int
-bitvector_print_hex(const bitvector_t *v, FILE *stream) {
- int i;
- int m = v->length >> 5;
- int n = v->length & 31;
- char string[9];
- uint32_t tmp;
-
- /* if length isn't a multiple of four, we can't hex_print */
- if (n & 3)
- return -1;
-
- /* if the length is zero, do nothing */
- if (v->length == 0)
- return 0;
-
- /*
- * loop over words from most significant to least significant -
- */
-
- for (i=m; i > 0; i++) {
- char *str = string + 7;
- tmp = v->word[i];
-
- /* null terminate string */
- string[8] = 0;
-
- /* loop over nibbles */
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf); tmp >>= 4;
- *str-- = nibble_to_hex_char(tmp & 0xf);
-
- /* now print stream */
- fprintf(stream, string);
- }
-
- return 0;
-
-}
-
-
-int
-hex_string_length(char *s) {
- int count = 0;
-
- /* ignore leading zeros */
- while ((*s != 0) && *s == '0')
- s++;
-
- /* count remaining characters */
- while (*s != 0) {
- if (hex_char_to_nibble(*s++) == -1)
- return -1;
- count++;
- }
-
- return count;
-}
-
-int
-bitvector_set_from_hex(bitvector_t *v, char *string) {
- int num_hex_chars, m, n, i, j;
- uint32_t tmp;
-
- num_hex_chars = hex_string_length(string);
- if (num_hex_chars == -1)
- return -1;
-
- /* set length */
- v->length = num_hex_chars * 4;
- /*
- * at this point, we should subtract away a bit if the high
- * bit of the first character is zero, but we ignore that
- * for now and assume that we're four-bit aligned - DAM
- */
-
-
- m = num_hex_chars / 8; /* number of words */
- n = num_hex_chars % 8; /* number of nibbles in last word */
-
- /* if the length is greater than the bitvector, return an error */
- if (m > BITVECTOR_MAX_WORDS)
- return -1;
-
- /*
- * loop over words from most significant - first word is a special
- * case
- */
-
- if (n) {
- tmp = 0;
- for (i=0; i < n; i++) {
- tmp = hex_char_to_nibble(*string++);
- tmp <<= 4;
- }
- v->word[m] = tmp;
- }
-
- /* now loop over the rest of the words */
- for (i=m-1; i >= 0; i--) {
- tmp = 0;
- for (j=0; j < 8; j++) {
- tmp = hex_char_to_nibble(*string++);
- tmp <<= 4;
- }
- v->word[i] = tmp;
- }
-
- return 0;
-}
-
-
-/* functions below not yet tested! */
-
-int
-v32_low_bit(v32_t *w) {
- int value;
-
- value = low_bit[w->v8[0]];
- if (value != -1)
- return value;
- value = low_bit[w->v8[1]];
- if (value != -1)
- return value + 8;
- value = low_bit[w->v8[2]];
- if (value != -1)
- return value + 16;
- value = low_bit[w->v8[3]];
- if (value == -1)
- return -1;
- return value + 24;
-}
-
-/* high_bit not done yet */
-
-
-
-
-
diff --git a/srtp/crypto/math/stat.c b/srtp/crypto/math/stat.c
deleted file mode 100644
index 5e46c20..0000000
--- a/srtp/crypto/math/stat.c
+++ /dev/null
@@ -1,367 +0,0 @@
-/*
- * stats.c
- *
- * statistical tests for randomness (FIPS 140-2, Section 4.9)
- *
- * David A. McGrew
- * Cisco Systems, Inc.
- */
-
-#include "stat.h"
-
-debug_module_t mod_stat = {
- 0, /* debugging is off by default */
- (char *)"stat test" /* printable module name */
-};
-
-/*
- * each test assumes that 20,000 bits (2500 octets) of data is
- * provided as input
- */
-
-#define STAT_TEST_DATA_LEN 2500
-
-err_status_t
-stat_test_monobit(uint8_t *data) {
- uint8_t *data_end = data + STAT_TEST_DATA_LEN;
- uint16_t ones_count;
-
- ones_count = 0;
- while (data < data_end) {
- ones_count += octet_get_weight(*data);
- data++;
- }
-
- debug_print(mod_stat, "bit count: %d", ones_count);
-
- if ((ones_count < 9725) || (ones_count > 10275))
- return err_status_algo_fail;
-
- return err_status_ok;
-}
-
-err_status_t
-stat_test_poker(uint8_t *data) {
- int i;
- uint8_t *data_end = data + STAT_TEST_DATA_LEN;
- double poker;
- uint16_t f[16] = {
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0
- };
-
- while (data < data_end) {
- f[*data & 0x0f]++; /* increment freq. count for low nibble */
- f[(*data) >> 4]++; /* increment freq. count for high nibble */
- data++;
- }
-
- poker = 0.0;
- for (i=0; i < 16; i++)
- poker += (double) f[i] * f[i];
-
- poker *= (16.0 / 5000.0);
- poker -= 5000.0;
-
- debug_print(mod_stat, "poker test: %f\n", poker);
-
- if ((poker < 2.16) || (poker > 46.17))
- return err_status_algo_fail;
-
- return err_status_ok;
-}
-
-
-/*
- * runs[i] holds the number of runs of size (i-1)
- */
-
-err_status_t
-stat_test_runs(uint8_t *data) {
- uint8_t *data_end = data + STAT_TEST_DATA_LEN;
- uint16_t runs[6] = { 0, 0, 0, 0, 0, 0 };
- uint16_t gaps[6] = { 0, 0, 0, 0, 0, 0 };
- uint16_t lo_value[6] = { 2315, 1114, 527, 240, 103, 103 };
- uint16_t hi_value[6] = { 2685, 1386, 723, 384, 209, 209 };
- int state = 0;
- uint16_t mask;
- int i;
-
- /*
- * the state variable holds the number of bits in the
- * current run (or gap, if negative)
- */
-
- while (data < data_end) {
-
- /* loop over the bits of this byte */
- for (mask = 1; mask < 256; mask <<= 1) {
- if (*data & mask) {
-
- /* next bit is a one */
- if (state > 0) {
-
- /* prefix is a run, so increment the run-count */
- state++;
-
- /* check for long runs */
- if (state > 25) {
- debug_print(mod_stat, ">25 runs: %d", state);
- return err_status_algo_fail;
- }
-
- } else if (state < 0) {
-
- /* prefix is a gap */
- if (state < -25) {
- debug_print(mod_stat, ">25 gaps: %d", state);
- return err_status_algo_fail; /* long-runs test failed */
- }
- if (state < -6) {
- state = -6; /* group together gaps > 5 */
- }
- gaps[-1-state]++; /* increment gap count */
- state = 1; /* set state at one set bit */
- } else {
-
- /* state is zero; this happens only at initialization */
- state = 1;
- }
- } else {
-
- /* next bit is a zero */
- if (state > 0) {
-
- /* prefix is a run */
- if (state > 25) {
- debug_print(mod_stat, ">25 runs (2): %d", state);
- return err_status_algo_fail; /* long-runs test failed */
- }
- if (state > 6) {
- state = 6; /* group together runs > 5 */
- }
- runs[state-1]++; /* increment run count */
- state = -1; /* set state at one zero bit */
- } else if (state < 0) {
-
- /* prefix is a gap, so increment gap-count (decrement state) */
- state--;
-
- /* check for long gaps */
- if (state < -25) {
- debug_print(mod_stat, ">25 gaps (2): %d", state);
- return err_status_algo_fail;
- }
-
- } else {
-
- /* state is zero; this happens only at initialization */
- state = -1;
- }
- }
- }
-
- /* move along to next octet */
- data++;
- }
-
- if (mod_stat.on) {
- debug_print(mod_stat, "runs test", NULL);
- for (i=0; i < 6; i++)
- debug_print(mod_stat, " runs[]: %d", runs[i]);
- for (i=0; i < 6; i++)
- debug_print(mod_stat, " gaps[]: %d", gaps[i]);
- }
-
- /* check run and gap counts against the fixed limits */
- for (i=0; i < 6; i++)
- if ( (runs[i] < lo_value[i] ) || (runs[i] > hi_value[i])
- || (gaps[i] < lo_value[i] ) || (gaps[i] > hi_value[i]))
- return err_status_algo_fail;
-
-
- return err_status_ok;
-}
-
-
-/*
- * the function stat_test_rand_source applys the FIPS-140-2 statistical
- * tests to the random source defined by rs
- *
- */
-
-#define RAND_SRC_BUF_OCTETS 50 /* this value MUST divide 2500! */
-
-err_status_t
-stat_test_rand_source(rand_source_func_t get_rand_bytes) {
- int i;
- double poker;
- uint8_t *data, *data_end;
- uint16_t f[16] = {
- 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0
- };
- uint8_t buffer[RAND_SRC_BUF_OCTETS];
- err_status_t status;
- int ones_count = 0;
- uint16_t runs[6] = { 0, 0, 0, 0, 0, 0 };
- uint16_t gaps[6] = { 0, 0, 0, 0, 0, 0 };
- uint16_t lo_value[6] = { 2315, 1114, 527, 240, 103, 103 };
- uint16_t hi_value[6] = { 2685, 1386, 723, 384, 209, 209 };
- int state = 0;
- uint16_t mask;
-
- /* counters for monobit, poker, and runs tests are initialized above */
-
- /* main loop: fill buffer, update counters for stat tests */
- for (i=0; i < 2500; i+=RAND_SRC_BUF_OCTETS) {
-
- /* fill data buffer */
- status = get_rand_bytes(buffer, RAND_SRC_BUF_OCTETS);
- if (status) {
- debug_print(mod_stat, "couldn't get rand bytes: %d",status);
- return status;
- }
-
-#if 0
- debug_print(mod_stat, "%s",
- octet_string_hex_string(buffer, RAND_SRC_BUF_OCTETS));
-#endif
-
- data = buffer;
- data_end = data + RAND_SRC_BUF_OCTETS;
- while (data < data_end) {
-
- /* update monobit test counter */
- ones_count += octet_get_weight(*data);
-
- /* update poker test counters */
- f[*data & 0x0f]++; /* increment freq. count for low nibble */
- f[(*data) >> 4]++; /* increment freq. count for high nibble */
-
- /* update runs test counters */
- /* loop over the bits of this byte */
- for (mask = 1; mask < 256; mask <<= 1) {
- if (*data & mask) {
-
- /* next bit is a one */
- if (state > 0) {
-
- /* prefix is a run, so increment the run-count */
- state++;
-
- /* check for long runs */
- if (state > 25) {
- debug_print(mod_stat, ">25 runs (3): %d", state);
- return err_status_algo_fail;
- }
-
- } else if (state < 0) {
-
- /* prefix is a gap */
- if (state < -25) {
- debug_print(mod_stat, ">25 gaps (3): %d", state);
- return err_status_algo_fail; /* long-runs test failed */
- }
- if (state < -6) {
- state = -6; /* group together gaps > 5 */
- }
- gaps[-1-state]++; /* increment gap count */
- state = 1; /* set state at one set bit */
- } else {
-
- /* state is zero; this happens only at initialization */
- state = 1;
- }
- } else {
-
- /* next bit is a zero */
- if (state > 0) {
-
- /* prefix is a run */
- if (state > 25) {
- debug_print(mod_stat, ">25 runs (4): %d", state);
- return err_status_algo_fail; /* long-runs test failed */
- }
- if (state > 6) {
- state = 6; /* group together runs > 5 */
- }
- runs[state-1]++; /* increment run count */
- state = -1; /* set state at one zero bit */
- } else if (state < 0) {
-
- /* prefix is a gap, so increment gap-count (decrement state) */
- state--;
-
- /* check for long gaps */
- if (state < -25) {
- debug_print(mod_stat, ">25 gaps (4): %d", state);
- return err_status_algo_fail;
- }
-
- } else {
-
- /* state is zero; this happens only at initialization */
- state = -1;
- }
- }
- }
-
- /* advance data pointer */
- data++;
- }
- }
-
- /* check to see if test data is within bounds */
-
- /* check monobit test data */
-
- debug_print(mod_stat, "stat: bit count: %d", ones_count);
-
- if ((ones_count < 9725) || (ones_count > 10275)) {
- debug_print(mod_stat, "stat: failed monobit test %d", ones_count);
- return err_status_algo_fail;
- }
-
- /* check poker test data */
- poker = 0.0;
- for (i=0; i < 16; i++)
- poker += (double) f[i] * f[i];
-
- poker *= (16.0 / 5000.0);
- poker -= 5000.0;
-
- debug_print(mod_stat, "stat: poker test: %f", poker);
-
- if ((poker < 2.16) || (poker > 46.17)) {
- debug_print(mod_stat, "stat: failed poker test", NULL);
- return err_status_algo_fail;
- }
-
- /* check run and gap counts against the fixed limits */
- for (i=0; i < 6; i++)
- if ((runs[i] < lo_value[i] ) || (runs[i] > hi_value[i])
- || (gaps[i] < lo_value[i] ) || (gaps[i] > hi_value[i])) {
- debug_print(mod_stat, "stat: failed run/gap test", NULL);
- return err_status_algo_fail;
- }
-
- debug_print(mod_stat, "passed random stat test", NULL);
- return err_status_ok;
-}
-
-err_status_t
-stat_test_rand_source_with_repetition(rand_source_func_t source, unsigned num_trials) {
- unsigned int i;
- err_status_t err = err_status_algo_fail;
-
- for (i=0; i < num_trials; i++) {
- err = stat_test_rand_source(source);
- if (err == err_status_ok) {
- return err_status_ok;
- }
- debug_print(mod_stat, "failed stat test (try number %d)\n", i);
- }
-
- return err;
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 01:24:39 +0000