Replaced system SQLite with SQLCipher to support encrypted database

2025-06-07 18:11:17 +03:00
parent f4198d62a7
commit 177d74700f
534 changed files with 362771 additions and 21 deletions
--- a/Sources/DataLiteC/libtomcrypt/pk/ec25519/ec25519_import_pkcs8.c
+++ b/Sources/DataLiteC/libtomcrypt/pk/ec25519/ec25519_import_pkcs8.c
@@ -0,0 +1,86 @@
+/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
+#include "tomcrypt_private.h"
+
+/**
+  @file ec25519_import_pkcs8.c
+  Generic import of a Curve/Ed25519 private key in PKCS#8 format, Steffen Jaeckel
+*/
+
+#ifdef LTC_CURVE25519
+
+typedef int (*sk_to_pk)(unsigned char *pk , const unsigned char *sk);
+
+int ec25519_import_pkcs8_asn1(ltc_asn1_list *alg_id, ltc_asn1_list *priv_key,
+                              enum ltc_oid_id id,
+                              curve25519_key *key)
+{
+   int err;
+   unsigned long key_len;
+   sk_to_pk fp;
+
+   LTC_ARGCHK(key         != NULL);
+   LTC_ARGCHK(ltc_mp.name != NULL);
+
+   LTC_UNUSED_PARAM(alg_id);
+
+   switch (id) {
+      case LTC_OID_ED25519:
+         fp = tweetnacl_crypto_sk_to_pk;
+         break;
+      case LTC_OID_X25519:
+         fp = tweetnacl_crypto_scalarmult_base;
+         break;
+      default:
+         return CRYPT_PK_INVALID_TYPE;
+   }
+
+   key_len = sizeof(key->priv);
+   if ((err = der_decode_octet_string(priv_key->data, priv_key->size, key->priv, &key_len)) == CRYPT_OK) {
+      fp(key->pub, key->priv);
+      key->type = PK_PRIVATE;
+      err = pk_get_pka_id(id, &key->pka);
+   }
+   return err;
+}
+
+/**
+  Generic import of a Curve/Ed25519 private key in PKCS#8 format
+  @param in        The packet to import from
+  @param inlen     It's length (octets)
+  @param pw_ctx    The password context when decrypting the private key
+  @param id        The type of the private key
+  @param key       [out] Destination for newly imported key
+  @return CRYPT_OK if successful, on error all allocated memory is freed automatically
+*/
+int ec25519_import_pkcs8(const unsigned char *in, unsigned long inlen,
+                         const password_ctx   *pw_ctx,
+                         enum ltc_oid_id id,
+                         curve25519_key *key)
+{
+   int           err;
+   ltc_asn1_list *l = NULL;
+   ltc_asn1_list *alg_id, *priv_key;
+   enum ltc_oid_id pka;
+
+   LTC_ARGCHK(in != NULL);
+
+   err = pkcs8_decode_flexi(in, inlen, pw_ctx, &l);
+   if (err != CRYPT_OK) return err;
+
+   if ((err = pkcs8_get_children(l, &pka, &alg_id, &priv_key)) != CRYPT_OK) {
+      goto LBL_DER_FREE;
+   }
+   if (pka != id) {
+      err = CRYPT_INVALID_PACKET;
+      goto LBL_DER_FREE;
+   }
+
+   err = ec25519_import_pkcs8_asn1(alg_id, priv_key, id, key);
+
+LBL_DER_FREE:
+   der_free_sequence_flexi(l);
+   return err;
+}
+
+#endif