本文整理汇总了C++中BN_get_word函数的典型用法代码示例。如果您正苦于以下问题:C++ BN_get_word函数的具体用法?C++ BN_get_word怎么用?C++ BN_get_word使用的例子?那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了BN_get_word函数的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: selfTestGeneralOps1
CHECK_RETVAL_BOOL \
static BOOLEAN selfTestGeneralOps1( void )
{
BIGNUM a;
/* Simple tests that don't need the support of higher-level routines
like importBignum() */
BN_init( &a );
if( !BN_zero( &a ) )
return( FALSE );
if( !BN_is_zero( &a ) || BN_is_one( &a ) )
return( FALSE );
if( !BN_is_word( &a, 0 ) || BN_is_word( &a, 1 ) )
return( FALSE );
if( BN_is_odd( &a ) )
return( FALSE );
if( BN_get_word( &a ) != 0 )
return( FALSE );
if( !BN_one( &a ) )
return( FALSE );
if( BN_is_zero( &a ) || !BN_is_one( &a ) )
return( FALSE );
if( BN_is_word( &a, 0 ) || !BN_is_word( &a, 1 ) )
return( FALSE );
if( !BN_is_odd( &a ) )
return( FALSE );
if( BN_num_bytes( &a ) != 1 )
return( FALSE );
if( BN_get_word( &a ) != 1 )
return( FALSE );
BN_clear( &a );
return( TRUE );
}
开发者ID:deflomu,项目名称:cryptlib,代码行数:34,代码来源:ctx_bntest.c
示例2: android_pubkey_encode
bool android_pubkey_encode(const RSA* key, uint8_t* key_buffer, size_t size) {
RSAPublicKey* key_struct = (RSAPublicKey*)key_buffer;
bool ret = false;
BN_CTX* ctx = BN_CTX_new();
BIGNUM* r32 = BN_new();
BIGNUM* n0inv = BN_new();
BIGNUM* rr = BN_new();
if (sizeof(RSAPublicKey) > size ||
RSA_size(key) != ANDROID_PUBKEY_MODULUS_SIZE) {
goto cleanup;
}
// Store the modulus size.
key_struct->modulus_size_words = ANDROID_PUBKEY_MODULUS_SIZE_WORDS;
// Compute and store n0inv = -1 / N[0] mod 2^32.
if (!ctx || !r32 || !n0inv || !BN_set_bit(r32, 32) ||
!BN_mod(n0inv, key->n, r32, ctx) ||
!BN_mod_inverse(n0inv, n0inv, r32, ctx) || !BN_sub(n0inv, r32, n0inv)) {
goto cleanup;
}
key_struct->n0inv = (uint32_t)BN_get_word(n0inv);
// Store the modulus.
if (!android_pubkey_encode_bignum(key->n, key_struct->modulus)) {
goto cleanup;
}
// Compute and store rr = (2^(rsa_size)) ^ 2 mod N.
if (!ctx || !rr || !BN_set_bit(rr, ANDROID_PUBKEY_MODULUS_SIZE * 8) ||
!BN_mod_sqr(rr, rr, key->n, ctx) ||
!android_pubkey_encode_bignum(rr, key_struct->rr)) {
goto cleanup;
}
// Store the exponent.
key_struct->exponent = (uint32_t)BN_get_word(key->e);
ret = true;
cleanup:
BN_free(rr);
BN_free(n0inv);
BN_free(r32);
BN_CTX_free(ctx);
return ret;
}
开发者ID:ArtBears,项目名称:platform_system_core,代码行数:48,代码来源:android_pubkey.c
示例3: get_ulong
static u_long
get_ulong(struct number *n)
{
normalize(n, 0);
return (BN_get_word(n->number));
}
开发者ID:FreeBSDFoundation,项目名称:freebsd,代码行数:7,代码来源:bcode.c
示例4: test_BN_import_export
static int
test_BN_import_export(void)
{
BIGNUM *bn;
int ret = 0;
int i;
bn = BN_new();
for (i = 0; i < sizeof(ietests)/sizeof(ietests[0]); i++) {
size_t len;
unsigned char *p;
if (!BN_bin2bn((unsigned char*)ietests[i].data, ietests[i].len, bn))
return 1;
if (BN_get_word(bn) != ietests[i].num)
return 1;
len = BN_num_bytes(bn);
if (len != ietests[i].len)
return 1;
p = malloc(len + 1);
p[len] = 0xf4;
BN_bn2bin(bn, p);
if (p[len] != 0xf4)
return 1;
if (memcmp(p, ietests[i].data, ietests[i].len) != 0)
return 1;
free(p);
}
BN_free(bn);
return ret;
}
开发者ID:Henauxg,项目名称:minix,代码行数:32,代码来源:test_bn.c
示例5: to_ascii
static void
to_ascii(void)
{
struct number *n;
struct value *value;
char str[2];
value = pop();
if (value != NULL) {
str[1] = '\0';
switch (value->type) {
case BCODE_NONE:
return;
case BCODE_NUMBER:
n = value->u.num;
normalize(n, 0);
if (BN_num_bits(n->number) > 8)
bn_check(BN_mask_bits(n->number, 8));
str[0] = (char)BN_get_word(n->number);
break;
case BCODE_STRING:
str[0] = value->u.string[0];
break;
}
stack_free_value(value);
push_string(bstrdup(str));
}
}
开发者ID:FreeBSDFoundation,项目名称:freebsd,代码行数:28,代码来源:bcode.c
示例6: b58encode_check
void b58encode_check(void *buf, size_t len, char *result)
{
unsigned char hash1[32];
unsigned char hash2[32];
int d, p;
BN_CTX *bnctx;
BIGNUM *bn, *bndiv, *bntmp;
BIGNUM bna, bnb, bnbase, bnrem;
unsigned char *binres;
int brlen, zpfx;
bnctx = BN_CTX_new();
BN_init(&bna);
BN_init(&bnb);
BN_init(&bnbase);
BN_init(&bnrem);
BN_set_word(&bnbase, 58);
bn = &bna;
bndiv = &bnb;
brlen = (2 * len) + 4;
binres = (unsigned char*) malloc(brlen);
memcpy(binres, buf, len);
SHA256(binres, len, hash1);
SHA256(hash1, sizeof(hash1), hash2);
memcpy(&binres[len], hash2, 4);
BN_bin2bn(binres, len + 4, bn);
for (zpfx = 0; zpfx < (len + 4) && binres[zpfx] == 0; zpfx++);
p = brlen;
while (!BN_is_zero(bn)) {
BN_div(bndiv, &bnrem, bn, &bnbase, bnctx);
bntmp = bn;
bn = bndiv;
bndiv = bntmp;
d = BN_get_word(&bnrem);
binres[--p] = b58alphabet[d];
}
while (zpfx--) {
binres[--p] = b58alphabet[0];
}
memcpy(result, &binres[p], brlen - p);
result[brlen - p] = '\0';
free(binres);
BN_clear_free(&bna);
BN_clear_free(&bnb);
BN_clear_free(&bnbase);
BN_clear_free(&bnrem);
BN_CTX_free(bnctx);
}
开发者ID:9cat,项目名称:misc,代码行数:59,代码来源:mpkgen.c
示例7: rsa_plaintext_to_word
int rsa_plaintext_to_word(const rsa_plaintext_t *m, unsigned long *a)
{
OPENSSL_assert(m);
OPENSSL_assert(a);
*a = BN_get_word(m);
return 0;
}
开发者ID:sara62,项目名称:hcrypt,代码行数:8,代码来源:hcrypt_rsa_lib.c
示例8: fdt_add_bignum
static int fdt_add_bignum(void *blob, int noffset, const char *prop_name,
BIGNUM *num, int num_bits)
{
int nwords = num_bits / 32;
int size;
uint32_t *buf, *ptr;
BIGNUM *tmp, *big2, *big32, *big2_32;
BN_CTX *ctx;
int ret;
tmp = BN_new();
big2 = BN_new();
big32 = BN_new();
big2_32 = BN_new();
if (!tmp || !big2 || !big32 || !big2_32) {
fprintf(stderr, "Out of memory (bignum)\n");
return -ENOMEM;
}
ctx = BN_CTX_new();
if (!tmp) {
fprintf(stderr, "Out of memory (bignum context)\n");
return -ENOMEM;
}
BN_set_word(big2, 2L);
BN_set_word(big32, 32L);
BN_exp(big2_32, big2, big32, ctx); /* B = 2^32 */
size = nwords * sizeof(uint32_t);
buf = malloc(size);
if (!buf) {
fprintf(stderr, "Out of memory (%d bytes)\n", size);
return -ENOMEM;
}
/* Write out modulus as big endian array of integers */
for (ptr = buf + nwords - 1; ptr >= buf; ptr--) {
BN_mod(tmp, num, big2_32, ctx); /* n = N mod B */
*ptr = cpu_to_fdt32(BN_get_word(tmp));
BN_rshift(num, num, 32); /* N = N/B */
}
/*
* We try signing with successively increasing size values, so this
* might fail several times
*/
ret = fdt_setprop(blob, noffset, prop_name, buf, size);
if (ret)
return -FDT_ERR_NOSPACE;
free(buf);
BN_free(tmp);
BN_free(big2);
BN_free(big32);
BN_free(big2_32);
return ret;
}
开发者ID:ahedlund,项目名称:u-boot-xlnx,代码行数:56,代码来源:rsa-sign.c
示例9: rsa_get_exponent
/*
* rsa_get_exponent(): - Get the public exponent from an RSA key
*/
static int rsa_get_exponent(RSA *key, uint64_t *e)
{
int ret;
BIGNUM *bn_te;
uint64_t te;
ret = -EINVAL;
bn_te = NULL;
if (!e)
goto cleanup;
if (BN_num_bits(key->e) > 64)
goto cleanup;
*e = BN_get_word(key->e);
if (BN_num_bits(key->e) < 33) {
ret = 0;
goto cleanup;
}
bn_te = BN_dup(key->e);
if (!bn_te)
goto cleanup;
if (!BN_rshift(bn_te, bn_te, 32))
goto cleanup;
if (!BN_mask_bits(bn_te, 32))
goto cleanup;
te = BN_get_word(bn_te);
te <<= 32;
*e |= te;
ret = 0;
cleanup:
if (bn_te)
BN_free(bn_te);
return ret;
}
开发者ID:ahedlund,项目名称:u-boot-xlnx,代码行数:46,代码来源:rsa-sign.c
示例10: fdt_add_bignum
static int fdt_add_bignum(void *blob, int noffset, const char *prop_name,
BIGNUM *num, int num_bits)
{
int nwords = num_bits / 32;
int size;
uint32_t *buf, *ptr;
BIGNUM *tmp, *big2, *big32, *big2_32;
BN_CTX *ctx;
int ret;
tmp = BN_new();
big2 = BN_new();
big32 = BN_new();
big2_32 = BN_new();
if (!tmp || !big2 || !big32 || !big2_32) {
fprintf(stderr, "Out of memory (bignum)\n");
return -ENOMEM;
}
ctx = BN_CTX_new();
if (!tmp) {
fprintf(stderr, "Out of memory (bignum context)\n");
return -ENOMEM;
}
BN_set_word(big2, 2L);
BN_set_word(big32, 32L);
BN_exp(big2_32, big2, big32, ctx); /* B = 2^32 */
size = nwords * sizeof(uint32_t);
buf = malloc(size);
if (!buf) {
fprintf(stderr, "Out of memory (%d bytes)\n", size);
return -ENOMEM;
}
/* Write out modulus as big endian array of integers */
for (ptr = buf + nwords - 1; ptr >= buf; ptr--) {
BN_mod(tmp, num, big2_32, ctx); /* n = N mod B */
*ptr = cpu_to_fdt32(BN_get_word(tmp));
BN_rshift(num, num, 32); /* N = N/B */
}
ret = fdt_setprop(blob, noffset, prop_name, buf, size);
if (ret) {
fprintf(stderr, "Failed to write public key to FIT\n");
return -ENOSPC;
}
free(buf);
BN_free(tmp);
BN_free(big2);
BN_free(big32);
BN_free(big2_32);
return ret;
}
开发者ID:AeroGirl,项目名称:u-boot-VAR-SOM-AM33-SDK7,代码行数:54,代码来源:rsa-sign.c
示例11: not
static void
not(void)
{
struct number *a;
a = pop_number();
if (a == NULL)
return;
a->scale = 0;
bn_check(BN_set_word(a->number, BN_get_word(a->number) ? 0 : 1));
push_number(a);
}
开发者ID:FreeBSDFoundation,项目名称:freebsd,代码行数:12,代码来源:bcode.c
示例12: stackint
static int stackint(GPtrArray *stack, int index)
{
struct buffer *buf = stacktop(stack, index);
BIGNUM bn;
BN_init(&bn);
int ret = -1;
if (!CastToBigNum(&bn, buf))
goto out;
if (!BN_is_negative(&bn))
ret = BN_get_word(&bn);
else {
BN_set_negative(&bn, 0);
ret = BN_get_word(&bn);
ret = -ret;
}
out:
BN_clear_free(&bn);
return ret;
}
开发者ID:digiwhite,项目名称:picocoin,代码行数:23,代码来源:script_eval.c
示例13: bn_probable_prime_dh_coprime
int bn_probable_prime_dh_coprime(BIGNUM *rnd, int bits, BN_CTX *ctx)
{
int i;
BIGNUM *offset_index;
BIGNUM *offset_count;
int ret = 0;
OPENSSL_assert(bits > prime_multiplier_bits);
BN_CTX_start(ctx);
if ((offset_index = BN_CTX_get(ctx)) == NULL)
goto err;
if ((offset_count = BN_CTX_get(ctx)) == NULL)
goto err;
if (!BN_add_word(offset_count, prime_offset_count))
goto err;
loop:
if (!BN_rand(rnd, bits - prime_multiplier_bits,
BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ODD))
goto err;
if (BN_is_bit_set(rnd, bits))
goto loop;
if (!BN_rand_range(offset_index, offset_count))
goto err;
if (!BN_mul_word(rnd, prime_multiplier)
|| !BN_add_word(rnd, prime_offsets[BN_get_word(offset_index)]))
goto err;
/* we now have a random number 'rand' to test. */
/* skip coprimes */
for (i = first_prime_index; i < NUMPRIMES; i++) {
/* check that rnd is a prime */
BN_ULONG mod = BN_mod_word(rnd, (BN_ULONG)primes[i]);
if (mod == (BN_ULONG)-1)
goto err;
if (mod <= 1)
goto loop;
}
ret = 1;
err:
BN_CTX_end(ctx);
bn_check_top(rnd);
return ret;
}
开发者ID:Castaglia,项目名称:openssl,代码行数:49,代码来源:bn_prime.c
示例14: set_get
static int
set_get(unsigned long num)
{
BIGNUM *bn;
bn = BN_new();
if (!BN_set_word(bn, num))
return 1;
if (BN_get_word(bn) != num)
return 1;
BN_free(bn);
return 0;
}
开发者ID:Henauxg,项目名称:minix,代码行数:15,代码来源:test_bn.c
示例15: base58_encode
/*place base58 encoding of data into result*/
void base58_encode(unsigned char *data, unsigned int len, char *result) {
const char code_string[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
BIGNUM *x, *rem, *base, *tmp, *tmp2;
x = BN_new();
rem = BN_new();
base = BN_new();
tmp = BN_new();
char * output_string = malloc(64);
x = BN_bin2bn(data, len, x);
BN_set_word(rem, 1);
BN_set_word(base, 58);
BN_CTX *bnctx;
bnctx = BN_CTX_new();
int i = 0;
while (!BN_is_zero(x)) {
BN_div(tmp, rem, x, base, bnctx);
output_string[i++] = code_string[BN_get_word(rem)];
tmp2 = x;
x = tmp;
tmp = tmp2;
}
//public key
int i2 = 0;
while (data[i2] == 0) {
output_string[i++] = code_string[0];
i2++;
}
int base58len = i;
while (i>=0) {
result[base58len-i] = output_string[i-1];
i--;
}
result[base58len] = 0;
BN_free(x);
BN_free(base);
BN_free(rem);
BN_free(tmp);
BN_CTX_free(bnctx);
free(output_string);
}
开发者ID:runeksvendsen,项目名称:sbag,代码行数:49,代码来源:sbag.c
示例16: check
int check(RSA* key) {
int public_exponent = BN_get_word(key->e);
int modulus = BN_num_bits(key->n);
if (public_exponent != 65537) {
fprintf(stderr, "WARNING: Public exponent should be 65537 (but is %d).\n",
public_exponent);
}
if (modulus != 1024 && modulus != 2048 && modulus != 4096
&& modulus != 8192) {
fprintf(stderr, "ERROR: Unknown modulus length = %d.\n", modulus);
return 0;
}
return 1;
}
开发者ID:Docworld,项目名称:chromiumos,代码行数:16,代码来源:dumpRSAPublicKey.c
示例17: BN_init
qint32 CryptoUtils::checkDHParams (BIGNUM *p, qint32 g) {
if (g < 2 || g > 7) { return -1; }
BIGNUM t;
BN_init (&t);
BIGNUM dh_g;
BN_init (&dh_g);
Utils::ensure (BN_set_word (&dh_g, 4 * g));
Utils::ensure (BN_mod (&t, p, &dh_g, BN_ctx));
qint32 x = BN_get_word (&t);
Q_ASSERT(x >= 0 && x < 4 * g);
BN_free (&dh_g);
switch (g) {
case 2:
if (x != 7) { return -1; }
break;
case 3:
if (x % 3 != 2 ) { return -1; }
break;
case 4:
break;
case 5:
if (x % 5 != 1 && x % 5 != 4) { return -1; }
break;
case 6:
if (x != 19 && x != 23) { return -1; }
break;
case 7:
if (x % 7 != 3 && x % 7 != 5 && x % 7 != 6) { return -1; }
break;
}
if (!checkPrime (p)) { return -1; }
BIGNUM b;
BN_init (&b);
Utils::ensure (BN_set_word (&b, 2));
Utils::ensure (BN_div (&t, 0, p, &b, BN_ctx));
if (!checkPrime (&t)) { return -1; }
BN_free (&b);
BN_free (&t);
return 0;
}
开发者ID:KAMiKAZOW,项目名称:libqtelegram-aseman-edition,代码行数:46,代码来源:cryptoutils.cpp
示例18: check
int check(RSA* key) {
const BIGNUM *n, *e;
int public_exponent, modulus;
RSA_get0_key(key, &n, &e, NULL);
public_exponent = BN_get_word(e);
modulus = BN_num_bits(n);
if (public_exponent != 3 && public_exponent != 65537) {
fprintf(stderr,
"WARNING: Public exponent should be 3 or 65537 (but is %d).\n",
public_exponent);
}
if (modulus != 1024 && modulus != 2048 && modulus != 3072 && modulus != 4096
&& modulus != 8192) {
fprintf(stderr, "ERROR: Unknown modulus length = %d.\n", modulus);
return 0;
}
return 1;
}
开发者ID:coreboot,项目名称:vboot,代码行数:21,代码来源:dumpRSAPublicKey.c
示例19: paillier_decryptll
int paillier_decryptll(long long *plain, const BIGNUM *c, const privKey *key, BN_CTX *ctx)
{
int ret = 1;
BN_CTX_start(ctx);
BIGNUM *plain_BN = BN_CTX_get(ctx);
if (paillier_decrypt(plain_BN, c, key, ctx) != 0)
goto end;
*plain = BN_get_word(plain_BN);
if (*plain == 0xffffffffL)
goto end;
ret = 0;
end:
if (ret)
{
ERR_load_crypto_strings();
fprintf(stderr, "Can't decrypt: %s", ERR_error_string(ERR_get_error(), NULL));
}
BN_CTX_end(ctx);
return ret;
}
开发者ID:marshallnaito,项目名称:PaillierEncryptedDatabaseService,代码行数:24,代码来源:paillier.c
示例20: get_key_bignum
static int get_key_bignum(BIGNUM *num, int num_bits, uint32_t *key_mod)
{
BIGNUM *tmp, *big2, *big32, *big2_32;
BN_CTX *ctx;
int ret;
tmp = BN_new();
big2 = BN_new();
big32 = BN_new();
big2_32 = BN_new();
if (!tmp || !big2 || !big32 || !big2_32) {
fprintf(stderr, "Out of memory (bignum)\n");
return -1;
}
ctx = BN_CTX_new();
if (!tmp) {
fprintf(stderr, "Out of memory (bignum context)\n");
return -1;
}
BN_set_word(big2, 2L);
BN_set_word(big32, 32L);
BN_exp(big2_32, big2, big32, ctx); /* B = 2^32 */
for (ret = 0; ret <= 63; ret++) {
BN_mod(tmp, num, big2_32, ctx); /* n = N mod B */
key_mod[ret] = htonl(BN_get_word(tmp));
BN_rshift(num, num, 32); /* N = N/B */
}
BN_free(tmp);
BN_free(big2);
BN_free(big32);
BN_free(big2_32);
return 0;
}
开发者ID:hello--world,项目名称:hiwifi-openwrt-HC5661-HC5761,代码行数:36,代码来源:hwf-img-sign.c
注:本文中的BN_get_word函数示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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