File Manager

003 File Manager

Current Path: /usr/src/crypto/openssl/crypto/ec

usr / src / crypto / openssl / crypto / ec /

📁 ..
📁 asm
📄 build.info(1.9 KB)
📄 curve25519.c(196.91 KB)
📁 curve448
📄 ec2_oct.c(9.54 KB)
📄 ec2_smpl.c(26.61 KB)
📄 ec_ameth.c(25.42 KB)
📄 ec_asn1.c(39.39 KB)
📄 ec_check.c(1.89 KB)
📄 ec_curve.c(138.45 KB)
📄 ec_cvt.c(2.64 KB)
📄 ec_err.c(21.19 KB)
📄 ec_key.c(18.77 KB)
📄 ec_kmeth.c(10.35 KB)
📄 ec_lib.c(33.27 KB)
📄 ec_local.h(34.19 KB)
📄 ec_mult.c(30.58 KB)
📄 ec_oct.c(5.09 KB)
📄 ec_pmeth.c(12.34 KB)
📄 ec_print.c(2.86 KB)
📄 ecdh_kdf.c(2.36 KB)
📄 ecdh_ossl.c(3.26 KB)
📄 ecdsa_ossl.c(12.55 KB)
📄 ecdsa_sign.c(1.77 KB)
📄 ecdsa_vrf.c(1.25 KB)
📄 eck_prn.c(7.32 KB)
📄 ecp_mont.c(7.81 KB)
📄 ecp_nist.c(4.79 KB)
📄 ecp_nistp224.c(59.33 KB)
📄 ecp_nistp256.c(73.78 KB)
📄 ecp_nistp521.c(71.96 KB)
📄 ecp_nistputil.c(9.8 KB)
📄 ecp_nistz256.c(50.59 KB)
📄 ecp_nistz256_table.c(602.98 KB)
📄 ecp_oct.c(10.17 KB)
📄 ecp_smpl.c(48.07 KB)
📄 ecx_meth.c(20.65 KB)

Editing: ec_print.c

/*
 * Copyright 2002-2018 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <openssl/crypto.h>
#include <openssl/err.h>
#include "ec_local.h"

BIGNUM *EC_POINT_point2bn(const EC_GROUP *group,
                          const EC_POINT *point,
                          point_conversion_form_t form,
                          BIGNUM *ret, BN_CTX *ctx)
{
    size_t buf_len = 0;
    unsigned char *buf;

buf_len = EC_POINT_point2buf(group, point, form, &buf, ctx);

if (buf_len == 0)
        return NULL;

ret = BN_bin2bn(buf, buf_len, ret);

OPENSSL_free(buf);

return ret;
}

EC_POINT *EC_POINT_bn2point(const EC_GROUP *group,
                            const BIGNUM *bn, EC_POINT *point, BN_CTX *ctx)
{
    size_t buf_len = 0;
    unsigned char *buf;
    EC_POINT *ret;

if ((buf_len = BN_num_bytes(bn)) == 0)
        buf_len = 1;
    if ((buf = OPENSSL_malloc(buf_len)) == NULL) {
        ECerr(EC_F_EC_POINT_BN2POINT, ERR_R_MALLOC_FAILURE);
        return NULL;
    }

if (!BN_bn2binpad(bn, buf, buf_len)) {
        OPENSSL_free(buf);
        return NULL;
    }

if (point == NULL) {
        if ((ret = EC_POINT_new(group)) == NULL) {
            OPENSSL_free(buf);
            return NULL;
        }
    } else
        ret = point;

if (!EC_POINT_oct2point(group, ret, buf, buf_len, ctx)) {
        if (ret != point)
            EC_POINT_clear_free(ret);
        OPENSSL_free(buf);
        return NULL;
    }

OPENSSL_free(buf);
    return ret;
}

static const char *HEX_DIGITS = "0123456789ABCDEF";

/* the return value must be freed (using OPENSSL_free()) */
char *EC_POINT_point2hex(const EC_GROUP *group,
                         const EC_POINT *point,
                         point_conversion_form_t form, BN_CTX *ctx)
{
    char *ret, *p;
    size_t buf_len = 0, i;
    unsigned char *buf = NULL, *pbuf;

buf_len = EC_POINT_point2buf(group, point, form, &buf, ctx);

if (buf_len == 0)
        return NULL;

ret = OPENSSL_malloc(buf_len * 2 + 2);
    if (ret == NULL) {
        OPENSSL_free(buf);
        return NULL;
    }
    p = ret;
    pbuf = buf;
    for (i = buf_len; i > 0; i--) {
        int v = (int)*(pbuf++);
        *(p++) = HEX_DIGITS[v >> 4];
        *(p++) = HEX_DIGITS[v & 0x0F];
    }
    *p = '\0';

OPENSSL_free(buf);

return ret;
}

EC_POINT *EC_POINT_hex2point(const EC_GROUP *group,
                             const char *buf, EC_POINT *point, BN_CTX *ctx)
{
    EC_POINT *ret = NULL;
    BIGNUM *tmp_bn = NULL;

if (!BN_hex2bn(&tmp_bn, buf))
        return NULL;

ret = EC_POINT_bn2point(group, tmp_bn, point, ctx);

BN_clear_free(tmp_bn);

return ret;
}

003 File Manager

Editing: ec_print.c

Upload File

Create Folder