From 5c105d9f3fd086aff195d3849dcf847d6b0bd927 Mon Sep 17 00:00:00 2001 From: blogic Date: Fri, 5 Oct 2012 10:12:53 +0000 Subject: branch Attitude Adjustment git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- package/ead/src/tinysrp/t_math.c | 177 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 177 insertions(+) create mode 100644 package/ead/src/tinysrp/t_math.c (limited to 'package/ead/src/tinysrp/t_math.c') diff --git a/package/ead/src/tinysrp/t_math.c b/package/ead/src/tinysrp/t_math.c new file mode 100644 index 000000000..20161a011 --- /dev/null +++ b/package/ead/src/tinysrp/t_math.c @@ -0,0 +1,177 @@ +/* + * Copyright (c) 1997-1999 The Stanford SRP Authentication Project + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, + * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY + * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + * + * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF + * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT + * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * In addition, the following conditions apply: + * + * 1. Any software that incorporates the SRP authentication technology + * must display the following acknowlegment: + * "This product uses the 'Secure Remote Password' cryptographic + * authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)." + * + * 2. Any software that incorporates all or part of the SRP distribution + * itself must also display the following acknowledgment: + * "This product includes software developed by Tom Wu and Eugene + * Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)." + * + * 3. Redistributions in source or binary form must retain an intact copy + * of this copyright notice and list of conditions. + */ + +#include +#include + +#include "config.h" + +#include "bn.h" +typedef BIGNUM * BigInteger; +#define MATH_PRIV + +#include "t_defines.h" +#include "t_pwd.h" + +/* Math library interface stubs */ + +BigInteger +BigIntegerFromInt(n) + unsigned int n; +{ + BIGNUM * a = BN_new(); + BN_set_word(a, n); + return a; +} + +BigInteger +BigIntegerFromBytes(bytes, length) + unsigned char * bytes; + int length; +{ + BIGNUM * a = BN_new(); + BN_bin2bn(bytes, length, a); + return a; +} + +int +BigIntegerToBytes(src, dest) + BigInteger src; + unsigned char * dest; +{ + return BN_bn2bin(src, dest); +} + +int +BigIntegerCmp(c1, c2) + BigInteger c1, c2; +{ + return BN_cmp(c1, c2); +} + +int +BigIntegerCmpInt(c1, c2) + BigInteger c1; + unsigned int c2; +{ + BIGNUM * a = BN_new(); + int rv; + BN_set_word(a, c2); + rv = BN_cmp(c1, a); + BN_free(a); + return rv; +} + +void +BigIntegerAdd(result, a1, a2) + BigInteger result, a1, a2; +{ + BN_add(result, a1, a2); +} + +void +BigIntegerAddInt(result, a1, a2) + BigInteger result, a1; + unsigned int a2; +{ + BIGNUM * a = BN_new(); + BN_set_word(a, a2); + BN_add(result, a1, a); + BN_free(a); +} + +void +BigIntegerSub(result, s1, s2) + BigInteger result, s1, s2; +{ + BN_sub(result, s1, s2); +} + +void +BigIntegerMulInt(result, m1, m2) + BigInteger result, m1; + unsigned int m2; +{ + BN_CTX * ctx = BN_CTX_new(); + BIGNUM * m = BN_new(); + BN_set_word(m, m2); + BN_mul(result, m1, m, ctx); + BN_CTX_free(ctx); +} + +void +BigIntegerModMul(r, m1, m2, modulus) + BigInteger r, m1, m2, modulus; +{ + BN_CTX * ctx = BN_CTX_new(); + BN_mod_mul(r, m1, m2, modulus, ctx); + BN_CTX_free(ctx); +} + +void +BigIntegerModExp(r, b, e, m) + BigInteger r, b, e, m; +{ + BN_CTX * ctx = BN_CTX_new(); + BN_mod_exp(r, b, e, m, ctx); + BN_CTX_free(ctx); +} + +void +BigIntegerModExpInt(r, b, e, m) + BigInteger r, b; + unsigned int e; + BigInteger m; +{ + BN_CTX * ctx = BN_CTX_new(); + BIGNUM * p = BN_new(); + BN_set_word(p, e); + BN_mod_exp(r, b, p, m, ctx); + BN_free(p); + BN_CTX_free(ctx); +} + +void +BigIntegerFree(b) + BigInteger b; +{ + BN_free(b); +} -- cgit v1.2.3