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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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76
Sources/DataLiteC/libtomcrypt/encauth/chachapoly/chacha20poly1305_memory.c Normal file
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/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
#include "tomcrypt_private.h"
#ifdef LTC_CHACHA20POLY1305_MODE
/**
Process an entire ChaCha20Poly1305 packet in one call.
@param key The secret key
@param keylen The length of the secret key
@param iv The initialization vector
@param ivlen The length of the initialization vector
@param aad The additional authentication data (header)
@param aadlen The length of the aad
@param in The plaintext
@param inlen The length of the plaintext (ciphertext length is the same)
@param out The ciphertext
@param tag [out] The MAC tag
@param taglen [in/out] The MAC tag length
@param direction Encrypt or Decrypt mode (CHACHA20POLY1305_ENCRYPT or CHACHA20POLY1305_DECRYPT)
@return CRYPT_OK on success
*/
int chacha20poly1305_memory(const unsigned char *key, unsigned long keylen,
const unsigned char *iv, unsigned long ivlen,
const unsigned char *aad, unsigned long aadlen,
const unsigned char *in, unsigned long inlen,
unsigned char *out,
unsigned char *tag, unsigned long *taglen,
int direction)
{
chacha20poly1305_state st;
int err;
LTC_ARGCHK(key != NULL);
LTC_ARGCHK(iv != NULL);
LTC_ARGCHK(in != NULL);
LTC_ARGCHK(out != NULL);
LTC_ARGCHK(tag != NULL);
LTC_ARGCHK(taglen != NULL);
if ((err = chacha20poly1305_init(&st, key, keylen)) != CRYPT_OK) { goto LBL_ERR; }
st.openssh_compat = (direction & CHACHA20POLY1305_OPENSSH_COMPAT) ? 1 : 0;
direction &= ~(CHACHA20POLY1305_OPENSSH_COMPAT);
if ((err = chacha20poly1305_setiv(&st, iv, ivlen)) != CRYPT_OK) { goto LBL_ERR; }
if (aad && aadlen > 0) {
if ((err = chacha20poly1305_add_aad(&st, aad, aadlen)) != CRYPT_OK) { goto LBL_ERR; }
}
if (direction == CHACHA20POLY1305_ENCRYPT) {
if ((err = chacha20poly1305_encrypt(&st, in, inlen, out)) != CRYPT_OK) { goto LBL_ERR; }
if ((err = chacha20poly1305_done(&st, tag, taglen)) != CRYPT_OK) { goto LBL_ERR; }
}
else if (direction == CHACHA20POLY1305_DECRYPT) {
unsigned char buf[MAXBLOCKSIZE];
unsigned long buflen = sizeof(buf);
if ((err = chacha20poly1305_decrypt(&st, in, inlen, out)) != CRYPT_OK) { goto LBL_ERR; }
if ((err = chacha20poly1305_done(&st, buf, &buflen)) != CRYPT_OK) { goto LBL_ERR; }
if (buflen != *taglen || XMEM_NEQ(buf, tag, buflen) != 0) {
err = CRYPT_ERROR;
goto LBL_ERR;
}
}
else {
err = CRYPT_INVALID_ARG;
goto LBL_ERR;
}
LBL_ERR:
#ifdef LTC_CLEAN_STACK
zeromem(&st, sizeof(chacha20poly1305_state));
#endif
return err;
}
#endif