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Replaced system SQLite with SQLCipher to support encrypted database

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This commit is contained in:
Oleksii Zghurskyi
2025-06-07 18:11:17 +03:00
parent f4198d62a7
commit 177d74700f
534 changed files with 362771 additions and 21 deletions
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86
Sources/DataLiteC/libtomcrypt/pk/ecc/ecc_set_curve.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wconversion"
#pragma clang diagnostic ignored "-Wshorten-64-to-32"
#ifdef LTC_MECC
int ecc_set_curve(const ltc_ecc_curve *cu, ecc_key *key)
{
int err;
LTC_ARGCHK(key != NULL);
LTC_ARGCHK(cu != NULL);
if ((err = ltc_mp_init_multi(&key->dp.prime, &key->dp.order, &key->dp.A, &key->dp.B,
&key->dp.base.x, &key->dp.base.y, &key->dp.base.z,
&key->pubkey.x, &key->pubkey.y, &key->pubkey.z, &key->k,
NULL)) != CRYPT_OK) {
return err;
}
/* A, B, order, prime, Gx, Gy */
if ((err = ltc_mp_read_radix(key->dp.prime, cu->prime, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_read_radix(key->dp.order, cu->order, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_read_radix(key->dp.A, cu->A, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_read_radix(key->dp.B, cu->B, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_read_radix(key->dp.base.x, cu->Gx, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_read_radix(key->dp.base.y, cu->Gy, 16)) != CRYPT_OK) { goto error; }
if ((err = ltc_mp_set(key->dp.base.z, 1)) != CRYPT_OK) { goto error; }
/* cofactor & size */
key->dp.cofactor = cu->cofactor;
key->dp.size = ltc_mp_unsigned_bin_size(key->dp.prime);
/* OID string >> unsigned long oid[16] + oidlen */
key->dp.oidlen = 16;
if ((err = pk_oid_str_to_num(cu->OID, key->dp.oid, &key->dp.oidlen)) != CRYPT_OK) { goto error; }
/* success */
return CRYPT_OK;
error:
ecc_free(key);
return err;
}
int ecc_set_curve_by_size(int size, ecc_key *key)
{
const ltc_ecc_curve *cu = NULL;
int err = CRYPT_ERROR;
/* for compatibility with libtomcrypt-1.17 the sizes below must match the specific curves */
if (size <= 14) {
err = ecc_find_curve("SECP112R1", &cu);
}
else if (size <= 16) {
err = ecc_find_curve("SECP128R1", &cu);
}
else if (size <= 20) {
err = ecc_find_curve("SECP160R1", &cu);
}
else if (size <= 24) {
err = ecc_find_curve("SECP192R1", &cu);
}
else if (size <= 28) {
err = ecc_find_curve("SECP224R1", &cu);
}
else if (size <= 32) {
err = ecc_find_curve("SECP256R1", &cu);
}
else if (size <= 48) {
err = ecc_find_curve("SECP384R1", &cu);
}
else if (size <= 66) {
err = ecc_find_curve("SECP521R1", &cu);
}
if (err == CRYPT_OK && cu != NULL) return ecc_set_curve(cu, key);
return CRYPT_INVALID_ARG;
}
#endif
#pragma clang diagnostic pop