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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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145
Sources/DataLiteC/libtomcrypt/pk/dsa/dsa_import.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"
/**
@file dsa_import.c
DSA implementation, import a DSA key, Tom St Denis
*/
#ifdef LTC_MDSA
int dsa_import_pkcs1(const unsigned char *in, unsigned long inlen, dsa_key *key)
{
int err;
unsigned long zero = 0;
/* get key type */
if ((err = der_decode_sequence_multi(in, inlen,
LTC_ASN1_SHORT_INTEGER, 1UL, &zero,
LTC_ASN1_INTEGER, 1UL, key->p,
LTC_ASN1_INTEGER, 1UL, key->q,
LTC_ASN1_INTEGER, 1UL, key->g,
LTC_ASN1_INTEGER, 1UL, key->y,
LTC_ASN1_INTEGER, 1UL, key->x,
LTC_ASN1_EOL, 0UL, NULL)) == CRYPT_OK) {
key->type = PK_PRIVATE;
}
return err;
}
/**
Import a DSA key
@param in The binary packet to import from
@param inlen The length of the binary packet
@param key [out] Where to store the imported key
@return CRYPT_OK if successful, upon error this function will free all allocated memory
*/
int dsa_import(const unsigned char *in, unsigned long inlen, dsa_key *key)
{
int err, stat;
unsigned char* tmpbuf = NULL;
unsigned char flags[1];
LTC_ARGCHK(in != NULL);
/* init key */
if ((err = dsa_int_init(key)) != CRYPT_OK) return err;
/* try to match the old libtomcrypt format */
err = der_decode_sequence_multi(in, inlen, LTC_ASN1_BIT_STRING, 1UL, flags,
LTC_ASN1_EOL, 0UL, NULL);
if (err == CRYPT_OK || err == CRYPT_INPUT_TOO_LONG) {
/* private key */
if (flags[0] == 1) {
if ((err = der_decode_sequence_multi(in, inlen,
LTC_ASN1_BIT_STRING, 1UL, flags,
LTC_ASN1_INTEGER, 1UL, key->g,
LTC_ASN1_INTEGER, 1UL, key->p,
LTC_ASN1_INTEGER, 1UL, key->q,
LTC_ASN1_INTEGER, 1UL, key->y,
LTC_ASN1_INTEGER, 1UL, key->x,
LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
goto LBL_ERR;
}
key->type = PK_PRIVATE;
goto LBL_OK;
}
/* public key */
else if (flags[0] == 0) {
if ((err = der_decode_sequence_multi(in, inlen,
LTC_ASN1_BIT_STRING, 1UL, flags,
LTC_ASN1_INTEGER, 1UL, key->g,
LTC_ASN1_INTEGER, 1UL, key->p,
LTC_ASN1_INTEGER, 1UL, key->q,
LTC_ASN1_INTEGER, 1UL, key->y,
LTC_ASN1_EOL, 0UL, NULL)) != CRYPT_OK) {
goto LBL_ERR;
}
key->type = PK_PUBLIC;
goto LBL_OK;
}
else {
err = CRYPT_INVALID_PACKET;
goto LBL_ERR;
}
}
if (dsa_import_pkcs1(in, inlen, key) != CRYPT_OK) {
ltc_asn1_list params[3];
unsigned long tmpbuf_len = inlen, len;
LTC_SET_ASN1(params, 0, LTC_ASN1_INTEGER, key->p, 1UL);
LTC_SET_ASN1(params, 1, LTC_ASN1_INTEGER, key->q, 1UL);
LTC_SET_ASN1(params, 2, LTC_ASN1_INTEGER, key->g, 1UL);
len = 3;
tmpbuf = XCALLOC(1, tmpbuf_len);
if (tmpbuf == NULL) {
return CRYPT_MEM;
}
err = x509_decode_subject_public_key_info(in, inlen,
LTC_OID_DSA, tmpbuf, &tmpbuf_len,
LTC_ASN1_SEQUENCE, params, &len);
if (err != CRYPT_OK) {
XFREE(tmpbuf);
goto LBL_ERR;
}
if ((err = der_decode_integer(tmpbuf, tmpbuf_len, key->y)) != CRYPT_OK) {
XFREE(tmpbuf);
goto LBL_ERR;
}
key->type = PK_PUBLIC;
XFREE(tmpbuf);
}
LBL_OK:
key->qord = ltc_mp_unsigned_bin_size(key->q);
/* quick p, q, g validation, without primality testing
* + x, y validation */
if ((err = dsa_int_validate(key, &stat)) != CRYPT_OK) {
goto LBL_ERR;
}
if (stat == 0) {
err = CRYPT_INVALID_PACKET;
goto LBL_ERR;
}
return CRYPT_OK;
LBL_ERR:
dsa_free(key);
return err;
}
#endif
#pragma clang diagnostic pop