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force allocation of IV space at end of database pages, even if current cipher doesn't require it (i.e. ECB mode)

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Stephen Lombardo
2009-12-30 14:52:03 -05:00
parent b38a9d20a2
commit 433a2a6641
1 changed files with 2 additions and 2 deletions
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src/crypto.c
+2 -2
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@@ -459,7 +459,7 @@ int sqlite3CodecAttach(sqlite3* db, int nDb, const void *zKey, int nKey) {
codec_set_pass_key(db, nDb, zKey, nKey, 0);
cipher_ctx_copy(ctx->write_ctx, ctx->read_ctx);
sqlite3BtreeSetPageSize(ctx->pBt, sqlite3BtreeGetPageSize(ctx->pBt), ctx->read_ctx->iv_sz, 0);
sqlite3BtreeSetPageSize(ctx->pBt, sqlite3BtreeGetPageSize(ctx->pBt), EVP_MAX_IV_LENGTH, 0);
return SQLITE_OK;
}
return SQLITE_ERROR;
@@ -530,7 +530,7 @@ int sqlite3_rekey(sqlite3 *db, const void *pKey, int nKey) {
CODEC_TRACE(("sqlite3_rekey: updating page size for iv_sz change from %d to %d\n", ctx->read_ctx->iv_sz, ctx->write_ctx->iv_sz));
db->nextPagesize = sqlite3BtreeGetPageSize(pDb->pBt);
pDb->pBt->pBt->pageSizeFixed = 0; /* required for sqlite3BtreeSetPageSize to modify pagesize setting */
sqlite3BtreeSetPageSize(pDb->pBt, db->nextPagesize, ctx->write_ctx->iv_sz, 0);
sqlite3BtreeSetPageSize(pDb->pBt, db->nextPagesize, EVP_MAX_IV_LENGTH, 0);
sqlite3RunVacuum(&error, db);
}