status-go/sqlite/sqlite.go

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package sqlite
import (
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"net/url"
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"os"
"runtime"
"strings"
sqlcipher "github.com/mutecomm/go-sqlcipher/v4" // We require go sqlcipher that overrides default implementation
"github.com/status-im/status-go/common/dbsetup"
)
const (
// The reduced number of kdf iterations (for performance reasons) which is
// used as the default value
// https://github.com/status-im/status-go/pull/1343
// https://notes.status.im/i8Y_l7ccTiOYq09HVgoFwA
ReducedKDFIterationsNumber = 3200
// WALMode for sqlite.
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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WALMode = "wal"
InMemoryPath = ":memory:"
V4CipherPageSize = 8192
V3CipherPageSize = 1024
sqlMainDatabase = "main"
)
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// DecryptDB completely removes the encryption from the db
func DecryptDB(oldPath string, newPath string, key string, kdfIterationsNumber int) error {
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perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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db, err := openDB(oldPath, key, kdfIterationsNumber, V4CipherPageSize)
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if err != nil {
return err
}
_, err = db.Exec(`ATTACH DATABASE '` + newPath + `' AS plaintext KEY ''`)
if err != nil {
return err
}
_, err = db.Exec(`SELECT sqlcipher_export('plaintext')`)
if err != nil {
return err
}
_, err = db.Exec(`DETACH DATABASE plaintext`)
return err
}
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func encryptDB(db *sql.DB, encryptedPath string, key string, kdfIterationsNumber int, onStart func(), onEnd func()) error {
if onStart != nil {
onStart()
}
if onEnd != nil {
defer onEnd()
}
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attachedDbName := "encrypted"
err := attachDatabaseWithDefaultSettings(db, encryptedPath, attachedDbName, key, kdfIterationsNumber)
if err != nil {
return err
}
_, err = db.Exec(fmt.Sprintf(`SELECT sqlcipher_export('%s')`, attachedDbName))
if err != nil {
return err
}
_, err = db.Exec(fmt.Sprintf(`DETACH DATABASE %s`, attachedDbName))
return err
}
func attachDatabaseWithDefaultSettings(db *sql.DB, attachedDbPath string, attachedDbName string, key string, kdfIterationsNumber int) error {
_, err := db.Exec(fmt.Sprintf(`ATTACH DATABASE '%s' AS %s KEY '%s'`, attachedDbPath, attachedDbName, key))
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if err != nil {
return err
}
if kdfIterationsNumber <= 0 {
kdfIterationsNumber = dbsetup.ReducedKDFIterationsNumber
}
if _, err := db.Exec(fmt.Sprintf(`PRAGMA %s.busy_timeout = 60000`, attachedDbName)); err != nil {
return errors.New("failed to set `busy_timeout` pragma on attached db")
}
return setDatabaseCipherSettings(db, kdfIterationsNumber, attachedDbName)
}
func setDatabaseCipherSettings(db *sql.DB, kdfIterationsNumber int, dbNameOpt ...string) error {
dbName := sqlMainDatabase
if len(dbNameOpt) > 0 {
dbName = dbNameOpt[0]
}
_, err := db.Exec(fmt.Sprintf("PRAGMA %s.kdf_iter = '%d'", dbName, kdfIterationsNumber))
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if err != nil {
return err
}
if _, err := db.Exec(fmt.Sprintf("PRAGMA %s.cipher_page_size = %d", dbName, V4CipherPageSize)); err != nil {
fmt.Println("failed to set cipher_page_size pragma")
return err
}
if _, err := db.Exec(fmt.Sprintf("PRAGMA %s.cipher_hmac_algorithm = HMAC_SHA1", dbName)); err != nil {
fmt.Println("failed to set cipher_hmac_algorithm pragma")
return err
}
if _, err := db.Exec(fmt.Sprintf("PRAGMA %s.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1", dbName)); err != nil {
fmt.Println("failed to set cipher_kdf_algorithm pragma")
return err
}
return nil
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}
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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// EncryptDB takes a plaintext database and adds encryption
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func EncryptDB(unencryptedPath string, encryptedPath string, key string, kdfIterationsNumber int, onStart func(), onEnd func()) error {
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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_ = os.Remove(encryptedPath)
db, err := OpenUnecryptedDB(unencryptedPath)
if err != nil {
return err
}
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return encryptDB(db, encryptedPath, key, kdfIterationsNumber, onStart, onEnd)
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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}
// Export takes an encrypted database and re-encrypts it in a new file, with a new key
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func ExportDB(encryptedPath string, key string, kdfIterationsNumber int, newPath string, newKey string, onStart func(), onEnd func()) error {
db, err := openDB(encryptedPath, key, kdfIterationsNumber, V4CipherPageSize)
if err != nil {
return err
}
defer db.Close()
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return encryptDB(db, newPath, newKey, kdfIterationsNumber, onStart, onEnd)
}
func buildSqlcipherDSN(path string) (string, error) {
if path == InMemoryPath {
return InMemoryPath, nil
}
// Adding sqlcipher query parameter to the DSN
queryOperator := "?"
if queryStart := strings.IndexRune(path, '?'); queryStart != -1 {
params, err := url.ParseQuery(path[queryStart+1:])
if err != nil {
return "", err
}
if len(params) > 0 {
queryOperator = "&"
}
}
// We need to set txlock=immediate to avoid "database is locked" errors during concurrent write operations
// This could happen when a read transaction is promoted to write transaction
// https://www.sqlite.org/lang_transaction.html
return path + queryOperator + "_txlock=immediate", nil
}
func openDB(path string, key string, kdfIterationsNumber int, cipherPageSize int) (*sql.DB, error) {
driverName := fmt.Sprintf("sqlcipher_with_extensions-%d", len(sql.Drivers()))
sql.Register(driverName, &sqlcipher.SQLiteDriver{
ConnectHook: func(conn *sqlcipher.SQLiteConn) error {
if _, err := conn.Exec("PRAGMA foreign_keys=ON", []driver.Value{}); err != nil {
return errors.New("failed to set `foreign_keys` pragma")
}
if _, err := conn.Exec(fmt.Sprintf("PRAGMA key = '%s'", key), []driver.Value{}); err != nil {
return errors.New("failed to set `key` pragma")
}
if kdfIterationsNumber <= 0 {
kdfIterationsNumber = dbsetup.ReducedKDFIterationsNumber
}
if _, err := conn.Exec(fmt.Sprintf("PRAGMA cipher_page_size = %d", cipherPageSize), nil); err != nil {
fmt.Println("failed to set cipher_page_size pragma")
return err
}
if _, err := conn.Exec("PRAGMA cipher_hmac_algorithm = HMAC_SHA1", nil); err != nil {
fmt.Println("failed to set cipher_hmac_algorithm pragma")
return err
}
if _, err := conn.Exec("PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1", nil); err != nil {
fmt.Println("failed to set cipher_kdf_algorithm pragma")
return err
}
if _, err := conn.Exec(fmt.Sprintf("PRAGMA kdf_iter = '%d'", kdfIterationsNumber), []driver.Value{}); err != nil {
return errors.New("failed to set `kdf_iter` pragma")
}
// readers do not block writers and faster i/o operations
if _, err := conn.Exec("PRAGMA journal_mode=WAL", []driver.Value{}); err != nil && path != InMemoryPath {
return fmt.Errorf("failed to set `journal_mode` pragma: %w", err)
}
// workaround to mitigate the issue of "database is locked" errors during concurrent write operations
if _, err := conn.Exec("PRAGMA busy_timeout=60000", []driver.Value{}); err != nil {
return errors.New("failed to set `busy_timeout` pragma")
}
return nil
},
})
dsn, err := buildSqlcipherDSN(path)
if err != nil {
return nil, err
}
db, err := sql.Open(driverName, dsn)
if err != nil {
return nil, err
}
if path == InMemoryPath {
db.SetMaxOpenConns(1)
} else {
nproc := func() int {
maxProcs := runtime.GOMAXPROCS(0)
numCPU := runtime.NumCPU()
if maxProcs < numCPU {
return maxProcs
}
return numCPU
}()
db.SetMaxOpenConns(nproc)
db.SetMaxIdleConns(nproc)
}
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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// Dummy select to check if the key is correct. Will return last error from initialization
if _, err := db.Exec("SELECT 'Key check'"); err != nil {
db.Close()
return nil, err
}
return db, nil
}
// OpenDB opens encrypted database.
func OpenDB(path string, key string, kdfIterationsNumber int) (*sql.DB, error) {
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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return openDB(path, key, kdfIterationsNumber, V4CipherPageSize)
}
// OpenUnecryptedDB opens database with setting PRAGMA key.
func OpenUnecryptedDB(path string) (*sql.DB, error) {
db, err := sql.Open("sqlite3", path)
if err != nil {
return nil, err
}
// Disable concurrent access as not supported by the driver
db.SetMaxOpenConns(1)
if _, err = db.Exec("PRAGMA foreign_keys=ON"); err != nil {
return nil, err
}
// readers do not block writers and faster i/o operations
// https://www.sqlite.org/draft/wal.html
// must be set after db is encrypted
if path != InMemoryPath {
var mode string
err = db.QueryRow("PRAGMA journal_mode=WAL").Scan(&mode)
if err != nil {
return nil, err
}
if mode != WALMode {
return nil, fmt.Errorf("unable to set journal_mode to WAL. actual mode %s", mode)
}
}
return db, nil
}
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func ChangeEncryptionKey(path string, key string, kdfIterationsNumber int, newKey string, onStart func(), onEnd func()) error {
if onStart != nil {
onStart()
}
if onEnd != nil {
defer onEnd()
}
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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if kdfIterationsNumber <= 0 {
kdfIterationsNumber = dbsetup.ReducedKDFIterationsNumber
}
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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db, err := openDB(path, key, kdfIterationsNumber, V4CipherPageSize)
if err != nil {
return err
}
resetKeyString := fmt.Sprintf("PRAGMA rekey = '%s'", newKey)
if _, err = db.Exec(resetKeyString); err != nil {
return errors.New("failed to set rekey pragma")
}
return nil
}
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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// MigrateV3ToV4 migrates database from v3 to v4 format with encryption.
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func MigrateV3ToV4(v3Path string, v4Path string, key string, kdfIterationsNumber int, onStart func(), onEnd func()) error {
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
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db, err := openDB(v3Path, key, kdfIterationsNumber, V3CipherPageSize)
if err != nil {
fmt.Println("failed to open db", err)
return err
}
defer db.Close()
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return encryptDB(db, v4Path, key, kdfIterationsNumber, onStart, onEnd)
perf(sqlCipher): Increase cipher page size to 8192 (#3591) * perf(sqlCipher): Increase cipher page size to 8192 Increasing the cipher page size to 8192 requires DB re-encryption. The process is as follows: //Login to v3 DB PRAGMA key = 'key'; PRAGMA cipher_page_size = 1024"; // old Page size PRAGMA cipher_hmac_algorithm = HMAC_SHA1"; PRAGMA cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; PRAGMA kdf_iter = kdfIterationsNumber"; //Create V4 DB with increased page size ATTACH DATABASE 'newdb.db' AS newdb KEY 'key'; PRAGMA newdb.cipher_page_size = 8192; // new Page size PRAGMA newdb.cipher_hmac_algorithm = HMAC_SHA1"; // same as in v3 PRAGMA newdb.cipher_kdf_algorithm = PBKDF2_HMAC_SHA1"; // same as in v3 PRAGMA newdb.kdf_iter = kdfIterationsNumber"; // same as in v3 SELECT sqlcipher_export('newdb'); DETACH DATABASE newdb; //Login to V4 DB ... Worth noting: The DB migration will happen on the first successful login. The new DB version will have a different name to be able to distinguish between different DB versions.Versions naming mirrors sqlcipher major version (naming conventions used by sqlcipher), meaning that we're migrating from V3 to V4 DB (even if we're not fully aligned with V4 standards). The DB is not migrated to the v4 standard `SHA512` due to performance reasons. Our custom `SHA1` implementation is fully optimised for perfomance. * perf(sqlCipher): Fixing failing tests Update the new DB file format in Delete account, Change password and Decrypt database flows * perf(SQLCipher): Increase page size - send events to notify when the DB re-encryption starts/ends
2023-06-13 15:20:21 +00:00
}