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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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93
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_crypt.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
#define QUARTERROUND(a,b,c,d) \
x[a] += x[b]; x[d] = ROL(x[d] ^ x[a], 16); \
x[c] += x[d]; x[b] = ROL(x[b] ^ x[c], 12); \
x[a] += x[b]; x[d] = ROL(x[d] ^ x[a], 8); \
x[c] += x[d]; x[b] = ROL(x[b] ^ x[c], 7);
static void s_chacha_block(unsigned char *output, const ulong32 *input, int rounds)
{
ulong32 x[16];
int i;
XMEMCPY(x, input, sizeof(x));
for (i = rounds; i > 0; i -= 2) {
QUARTERROUND(0, 4, 8,12)
QUARTERROUND(1, 5, 9,13)
QUARTERROUND(2, 6,10,14)
QUARTERROUND(3, 7,11,15)
QUARTERROUND(0, 5,10,15)
QUARTERROUND(1, 6,11,12)
QUARTERROUND(2, 7, 8,13)
QUARTERROUND(3, 4, 9,14)
}
for (i = 0; i < 16; ++i) {
x[i] += input[i];
STORE32L(x[i], output + 4 * i);
}
}
/**
Encrypt (or decrypt) bytes of ciphertext (or plaintext) with ChaCha
@param st The ChaCha state
@param in The plaintext (or ciphertext)
@param inlen The length of the input (octets)
@param out [out] The ciphertext (or plaintext), length inlen
@return CRYPT_OK if successful
*/
int chacha_crypt(chacha_state *st, const unsigned char *in, unsigned long inlen, unsigned char *out)
{
unsigned char buf[64];
unsigned long i, j;
if (inlen == 0) return CRYPT_OK; /* nothing to do */
LTC_ARGCHK(st != NULL);
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(out != NULL);
LTC_ARGCHK(st->ivlen != 0);
if (st->ksleft > 0) {
j = MIN(st->ksleft, inlen);
for (i = 0; i < j; ++i, st->ksleft--) out[i] = in[i] ^ st->kstream[64 - st->ksleft];
inlen -= j;
if (inlen == 0) return CRYPT_OK;
out += j;
in += j;
}
for (;;) {
s_chacha_block(buf, st->input, st->rounds);
if (st->ivlen == 8) {
/* IV-64bit, increment 64bit counter */
if (0 == ++st->input[12] && 0 == ++st->input[13]) return CRYPT_OVERFLOW;
}
else {
/* IV-96bit, increment 32bit counter */
if (0 == ++st->input[12]) return CRYPT_OVERFLOW;
}
if (inlen <= 64) {
for (i = 0; i < inlen; ++i) out[i] = in[i] ^ buf[i];
st->ksleft = 64 - inlen;
for (i = inlen; i < 64; ++i) st->kstream[i] = buf[i];
return CRYPT_OK;
}
for (i = 0; i < 64; ++i) out[i] = in[i] ^ buf[i];
inlen -= 64;
out += 64;
in += 64;
}
}
#undef QUARTERROUND
#endif

20
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_done.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
/**
Terminate and clear ChaCha state
@param st The ChaCha state
@return CRYPT_OK on success
*/
int chacha_done(chacha_state *st)
{
LTC_ARGCHK(st != NULL);
zeromem(st, sizeof(chacha_state));
return CRYPT_OK;
}
#endif

37
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_ivctr32.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
/**
Set IV + counter data to the ChaCha state
@param st The ChaCha20 state
@param iv The IV data to add
@param ivlen The length of the IV (must be 12)
@param counter 32bit (unsigned) initial counter value
@return CRYPT_OK on success
*/
int chacha_ivctr32(chacha_state *st, const unsigned char *iv, unsigned long ivlen, ulong32 counter)
{
LTC_ARGCHK(st != NULL);
LTC_ARGCHK(iv != NULL);
/* 96bit IV + 32bit counter */
LTC_ARGCHK(ivlen == 12);
st->input[12] = counter;
LOAD32L(st->input[13], iv + 0);
LOAD32L(st->input[14], iv + 4);
LOAD32L(st->input[15], iv + 8);
st->ksleft = 0;
st->ivlen = ivlen;
return CRYPT_OK;
}
#endif

37
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_ivctr64.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
/**
Set IV + counter data to the ChaCha state
@param st The ChaCha20 state
@param iv The IV data to add
@param ivlen The length of the IV (must be 8)
@param counter 64bit (unsigned) initial counter value
@return CRYPT_OK on success
*/
int chacha_ivctr64(chacha_state *st, const unsigned char *iv, unsigned long ivlen, ulong64 counter)
{
LTC_ARGCHK(st != NULL);
LTC_ARGCHK(iv != NULL);
/* 64bit IV + 64bit counter */
LTC_ARGCHK(ivlen == 8);
st->input[12] = (ulong32)(counter & 0xFFFFFFFF);
st->input[13] = (ulong32)(counter >> 32);
LOAD32L(st->input[14], iv + 0);
LOAD32L(st->input[15], iv + 4);
st->ksleft = 0;
st->ivlen = ivlen;
return CRYPT_OK;
}
#endif

28
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_keystream.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
/**
Generate a stream of random bytes via ChaCha
@param st The ChaCha20 state
@param out [out] The output buffer
@param outlen The output length
@return CRYPT_OK on success
*/
int chacha_keystream(chacha_state *st, unsigned char *out, unsigned long outlen)
{
if (outlen == 0) return CRYPT_OK; /* nothing to do */
LTC_ARGCHK(out != NULL);
XMEMSET(out, 0, outlen);
return chacha_crypt(st, out, outlen, out);
}
#endif

57
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_memory.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_CHACHA
/**
Encrypt (or decrypt) bytes of ciphertext (or plaintext) with ChaCha
@param key The key
@param keylen The key length
@param rounds The number of rounds
@param iv The initial vector
@param ivlen The initial vector length
@param counter initial counter value, either ignored, 32- or 64-bit, depending on ivlen
@param datain The plaintext (or ciphertext)
@param datalen The length of the input and output (octets)
@param dataout [out] The ciphertext (or plaintext)
@return CRYPT_OK if successful
*/
int chacha_memory(const unsigned char *key, unsigned long keylen, unsigned long rounds,
const unsigned char *iv, unsigned long ivlen, ulong64 counter,
const unsigned char *datain, unsigned long datalen, unsigned char *dataout)
{
chacha_state st;
int err;
const unsigned char *iv_ = iv;
unsigned long ivlen_ = ivlen;
ulong64 counter_ = counter;
if (ivlen == 16) {
LOAD64L(counter_, iv);
iv_ += 8;
ivlen_ -=8;
}
LTC_ARGCHK(ivlen_ <= 8 || counter_ < CONST64(4294967296)); /* 2**32 */
if ((err = chacha_setup(&st, key, keylen, rounds)) != CRYPT_OK) goto WIPE_KEY;
if (ivlen_ > 8) {
if ((err = chacha_ivctr32(&st, iv_, ivlen_, (ulong32)counter_)) != CRYPT_OK) goto WIPE_KEY;
} else {
if ((err = chacha_ivctr64(&st, iv_, ivlen_, counter_)) != CRYPT_OK) goto WIPE_KEY;
}
err = chacha_crypt(&st, datain, datalen, dataout);
WIPE_KEY:
chacha_done(&st);
return err;
}
#endif /* LTC_CHACHA */
#pragma clang diagnostic pop

56
Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_setup.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
/**
Initialize an ChaCha context (only the key)
@param st [out] The destination of the ChaCha state
@param key The secret key
@param keylen The length of the secret key (octets)
@param rounds Number of rounds (e.g. 20 for ChaCha20)
@return CRYPT_OK if successful
*/
int chacha_setup(chacha_state *st, const unsigned char *key, unsigned long keylen, int rounds)
{
const char * const sigma = "expand 32-byte k";
const char * const tau = "expand 16-byte k";
const char *constants;
LTC_ARGCHK(st != NULL);
LTC_ARGCHK(key != NULL);
LTC_ARGCHK(keylen == 32 || keylen == 16);
if (rounds == 0) rounds = 20;
LOAD32L(st->input[4], key + 0);
LOAD32L(st->input[5], key + 4);
LOAD32L(st->input[6], key + 8);
LOAD32L(st->input[7], key + 12);
if (keylen == 32) { /* 256bit */
key += 16;
constants = sigma;
} else { /* 128bit */
constants = tau;
}
LOAD32L(st->input[8], key + 0);
LOAD32L(st->input[9], key + 4);
LOAD32L(st->input[10], key + 8);
LOAD32L(st->input[11], key + 12);
LOAD32L(st->input[0], constants + 0);
LOAD32L(st->input[1], constants + 4);
LOAD32L(st->input[2], constants + 8);
LOAD32L(st->input[3], constants + 12);
st->rounds = rounds; /* e.g. 20 for chacha20 */
st->ivlen = 0; /* will be set later by chacha_ivctr(32|64) */
return CRYPT_OK;
}
#endif

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Sources/DataLiteC/libtomcrypt/stream/chacha/chacha_test.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/* The implementation is based on:
* chacha-ref.c version 20080118
* Public domain from D. J. Bernstein
*/
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA
int chacha_test(void)
{
#ifndef LTC_TEST
return CRYPT_NOP;
#else
unsigned long len;
unsigned char out[1000];
/* https://tools.ietf.org/html/rfc7539#section-2.4.2 */
unsigned char k[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f };
unsigned char n[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 0x00, 0x00 };
unsigned char ct[] = { 0x6E, 0x2E, 0x35, 0x9A, 0x25, 0x68, 0xF9, 0x80, 0x41, 0xBA, 0x07, 0x28, 0xDD, 0x0D, 0x69, 0x81,
0xE9, 0x7E, 0x7A, 0xEC, 0x1D, 0x43, 0x60, 0xC2, 0x0A, 0x27, 0xAF, 0xCC, 0xFD, 0x9F, 0xAE, 0x0B,
0xF9, 0x1B, 0x65, 0xC5, 0x52, 0x47, 0x33, 0xAB, 0x8F, 0x59, 0x3D, 0xAB, 0xCD, 0x62, 0xB3, 0x57,
0x16, 0x39, 0xD6, 0x24, 0xE6, 0x51, 0x52, 0xAB, 0x8F, 0x53, 0x0C, 0x35, 0x9F, 0x08, 0x61, 0xD8,
0x07, 0xCA, 0x0D, 0xBF, 0x50, 0x0D, 0x6A, 0x61, 0x56, 0xA3, 0x8E, 0x08, 0x8A, 0x22, 0xB6, 0x5E,
0x52, 0xBC, 0x51, 0x4D, 0x16, 0xCC, 0xF8, 0x06, 0x81, 0x8C, 0xE9, 0x1A, 0xB7, 0x79, 0x37, 0x36,
0x5A, 0xF9, 0x0B, 0xBF, 0x74, 0xA3, 0x5B, 0xE6, 0xB4, 0x0B, 0x8E, 0xED, 0xF2, 0x78, 0x5E, 0x42,
0x87, 0x4D };
char pt[] = "Ladies and Gentlemen of the class of '99: If I could offer you only one tip for the future, sunscreen would be it.";
chacha_state st;
int err;
len = XSTRLEN(pt);
/* crypt piece by piece - using chacha_ivctr32() */
if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
if ((err = chacha_ivctr32(&st, n, sizeof(n), 1)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt, 35, out )) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt + 35, 35, out + 35)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt + 70, 5, out + 70)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt + 75, 5, out + 75)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt + 80, len - 80, out + 80)) != CRYPT_OK) return err;
if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV1", 1)) return CRYPT_FAIL_TESTVECTOR;
/* crypt in one go - using chacha_ivctr32() */
if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
if ((err = chacha_ivctr32(&st, n, sizeof(n), 1)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV2", 1)) return CRYPT_FAIL_TESTVECTOR;
/* crypt in one go - using chacha_ivctr64() */
if ((err = chacha_setup(&st, k, sizeof(k), 20)) != CRYPT_OK) return err;
if ((err = chacha_ivctr64(&st, n + 4, sizeof(n) - 4, 1)) != CRYPT_OK) return err;
if ((err = chacha_crypt(&st, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV3", 1)) return CRYPT_FAIL_TESTVECTOR;
/* crypt in a single call using 32-bit counter with a value of 1 */
if ((err = chacha_memory(k, sizeof(k), 20,
n, sizeof(n), 1, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV4", 1)) return CRYPT_FAIL_TESTVECTOR;
/* crypt in a single call using 64-bit counter with a value of 1 */
if ((err = chacha_memory(k, sizeof(k), 20,
n + 4, sizeof(n) - 4, 1, (unsigned char*)pt, len, out)) != CRYPT_OK) return err;
if (compare_testvector(out, len, ct, sizeof(ct), "CHACHA-TV5", 1)) return CRYPT_FAIL_TESTVECTOR;
return CRYPT_OK;
#endif
}
#endif