/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.openssl;
public class NativeBN {
public static native int ERR_get_error();
// unsigned long ERR_get_error(void);
public static native String ERR_error_string(int e);
// char *ERR_error_string(unsigned long e, char *buf);
public static native int BN_CTX_new();
// BN_CTX *BN_CTX_new(void);
public static native int BN_new();
// BIGNUM *BN_new(void);
public static native void BN_free(int a);
// void BN_free(BIGNUM *a);
public static native int BN_cmp(int a, int b);
// int BN_cmp(const BIGNUM *a, const BIGNUM *b);
public static native boolean BN_copy(int to, int from);
// Returns boolean success AND NOT result BIGNUM handle!
// BIGNUM *BN_copy(BIGNUM *to, const BIGNUM *from);
// public static native int BN_dup(int from);
// BIGNUM *BN_dup(const BIGNUM *a);
public static native boolean putLongInt(int a, long dw);
public static native boolean putULongInt(int a, long dw, boolean neg);
public static native int BN_dec2bn(int a, String str);
// int BN_dec2bn(BIGNUM **a, const char *str);
public static native int BN_hex2bn(int a, String str);
// int BN_hex2bn(BIGNUM **a, const char *str);
public static native boolean BN_bin2bn(byte[] s, int len, boolean neg, int ret);
// Returns boolean success AND NOT result BIGNUM handle!
// BIGNUM * BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret);
// BN-Docu: s is taken as unsigned big endian;
// Additional parameter: neg.
public static native boolean litEndInts2bn(int[] ints, int len, boolean neg, int ret);
public static native boolean twosComp2bn(byte[] s, int len, int ret);
public static native long longInt(int a);
// unsigned long BN_get_word(BIGNUM *a);
public static native String BN_bn2dec(int a);
// char * BN_bn2dec(const BIGNUM *a);
public static native String BN_bn2hex(int a);
// char * BN_bn2hex(const BIGNUM *a);
public static native byte[] BN_bn2bin(int a, byte[] to);
// Returns result byte[] AND NOT length.
// int BN_bn2bin(const BIGNUM *a, unsigned char *to);
public static native int[] bn2litEndInts(int a, int[] to);
public static native byte[] bn2twosComp(int a, byte[] to);
public static native int sign(int a);
// Returns -1, 0, 1 AND NOT boolean.
// #define BN_is_negative(a) ((a)->neg != 0)
public static native void BN_set_negative(int b, int n);
// void BN_set_negative(BIGNUM *b, int n);
public static native boolean twosCompFitsIntoBytes(int a, int byteCnt);
public static native int bitLength(int a);
public static native boolean BN_is_bit_set(int a, int n);
// int BN_is_bit_set(const BIGNUM *a, int n);
public static native boolean modifyBit(int a, int n, int op);
// Returns boolean success.
// op: 0 = reset; 1 = set; -1 = flip
// uses BN_set_bit(), BN_clear_bit() and BN_is_bit_set()
public static native boolean BN_lshift(int r, int a, int n);
// int BN_lshift(BIGNUM *r, const BIGNUM *a, int n);
// public static native int BN_rshift(BigInteger r, BigInteger a, int n);
// int BN_rshift(BIGNUM *r, const BIGNUM *a, int n);
public static native boolean BN_add_word(int a, int w);
// ATTENTION: w is treated as unsigned.
// int BN_add_word(BIGNUM *a, BN_ULONG w);
public static native boolean BN_sub_word(int a, int w);
// ATTENTION: w is treated as unsigned.
// int BN_sub_word(BIGNUM *a, BN_ULONG w);
public static native boolean BN_mul_word(int a, int w);
// ATTENTION: w is treated as unsigned.
// int BN_mul_word(BIGNUM *a, BN_ULONG w);
public static native int BN_div_word(int a, int w);
// ATTENTION: w is treated as unsigned.
// BN_ULONG BN_div_word(BIGNUM *a, BN_ULONG w);
public static native int BN_mod_word(int a, int w);
// ATTENTION: w is treated as unsigned.
// BN_ULONG BN_mod_word(BIGNUM *a, BN_ULONG w);
public static native boolean BN_add(int r, int a, int b);
// int BN_add(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
public static native boolean BN_sub(int r, int a, int b);
// int BN_sub(BIGNUM *r, const BIGNUM *a, const BIGNUM *b);
public static native boolean BN_gcd(int r, int a, int b, int ctx);
// int BN_gcd(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
public static native boolean BN_mul(int r, int a, int b, int ctx);
// int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx);
public static native boolean BN_exp(int r, int a, int p, int ctx);
// int BN_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, BN_CTX *ctx);
// OPTIONAL:
// public static native int BN_sqr(BigInteger r, BigInteger a, BN_CTX ctx);
// int BN_sqr(BIGNUM *r, const BIGNUM *a,BN_CTX *ctx);
public static native boolean BN_div(int dv, int rem, int m, int d, int ctx);
// int BN_div(BIGNUM *dv, BIGNUM *rem, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx);
public static native boolean BN_nnmod(int r, int a, int m, int ctx);
// int BN_nnmod(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
public static native boolean BN_mod_exp(int r, int a, int p, int m, int ctx);
// int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx);
// OPTIONAL:
// public static native boolean BN_mod_sqr(BigInteger r, BigInteger a, BigInteger m, BN_CTX ctx);
// int BN_mod_sqr(BIGNUM *r, const BIGNUM *a, const BIGNUM *m, BN_CTX *ctx);
public static native boolean BN_mod_inverse(int ret, int a, int n, int ctx);
// Returns boolean success AND NOT result BIGNUM handle!
// BIGNUM * BN_mod_inverse(BIGNUM *ret, const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx);
public static native boolean BN_generate_prime_ex(int ret, int bits, boolean safe,
int add, int rem, int cb);
// int BN_generate_prime_ex(BIGNUM *ret, int bits, int safe,
// const BIGNUM *add, const BIGNUM *rem, BN_GENCB *cb);
public static native boolean BN_is_prime_ex(int p, int nchecks, int ctx, int cb);
// int BN_is_prime_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx, BN_GENCB *cb);
// OPTIONAL:
// int BN_is_prime_fasttest_ex(const BIGNUM *p, int nchecks, BN_CTX *ctx,
// int do_trial_division, BN_GENCB *cb);
// RAND_add(rnd);
}
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