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SQLCipher Change Log

All notable changes to this project will be documented in this file.

4.4.0 - (May 2020 - 4.4.0 changes)

  • Updates baseline to upstream SQLite 3.31.0
  • Adjusts shell to report SQLCipher version alongside SQLite version
  • Fixes various build warnings under several compilers
  • Removes unused id and status functions from provider interface

4.3.0 - (November 2019 - 4.3.0 changes)

  • Updates baseline to upstream SQLite 3.30.1
  • PRAGMA key now returns text result value "ok" after execution
  • Adjusts backup API so that encrypted to encrypted backups are permitted
  • Adds NSS crypto provider implementation
  • Fixes OpenSSL provider compatibility with BoringSSL
  • Separates memory related traces to reduce verbosity of logging
  • Fixes output of PRAGMA cipher_integrity_check on big endian platforms
  • Cryptograpic provider interface cleanup
  • Rework of mutex allocation and management
  • Resolves miscellaneous build warnings
  • Force error state at database pager level if SQLCipher initialization fails

4.2.0 - (May 2019 - 4.2.0 changes)

  • Adds PRAGMA cipher_integrity_check to perform independent verification of page HMACs
  • Updates baseline to upstream SQLite 3.28.0
  • Improves PRAGMA cipher_migrate to handle keys containing non-terminating zero bytes

4.1.0 - (March 2019 - 4.1.0 changes)

  • Defer reading salt from header until key derivation is triggered
  • Clarify usage of sqlite3_rekey for plaintext databases in header
  • Normalize attach behavior when key is not yet derived
  • Adds PRAGMA cipher_settings to query current database codec settings
  • Adds PRAGMA cipher_default_settings to query current default SQLCipher options
  • PRAGMA cipher_hmac_pgno is now deprecated
  • PRAGMA cipher_hmac_salt_mask is now deprecated
  • PRAGMA fast_kdf_iter is now deprecated
  • Improve sqlcipher_export routine and restore all database flags
  • Clear codec data buffers if a crypographic provider operation fails
  • Disable backup API for encrypted databases (this was previously documented as not-working and non-supported, but will now explicitly error out on initialization)
  • Updates baseline to upstream SQLite 3.27.2

4.0.1 - (December 2018 - 4.0.1 changes)

  • Based on upstream SQLite 3.26.0 (addresses SQLite “Magellan” issue)
  • Adds PRAGMA cipher_compatibility and cipher_default_compatibility which take automatcially configure appropriate compatibility settings for the specified SQLCipher major version number
  • Filters attach statements with KEY parameters from readline history
  • Fixes crash in command line shell with empty input (i.e. ^D)
  • Fixes warnings when compiled with strict-prototypes

4.0.0 - (November 2018 - 4.0.0 changes)

Changed

  • Default page size for databases increased to 4096 bytes (up from 1024) *
  • Default PBKDF2 iterations increased to 256,000 (up from 64,000) *
  • Default KDF algorithm is now PBKDF2-HMAC-SHA512 (from PBKDF2-HMAC-SHA1) *
  • Default HMAC algorithm is now HMAC-SHA512 (from HMAC-SHA1) *
  • PRAGMA cipher is now disabled and no longer supported (after multi-year deprecation) *
  • PRAGMA rekey_cipher is now disabled and no longer supported *
  • PRAGMA rekey_kdf_iter is now disabled and no longer supported *
  • By default all memory allocated internally by SQLite before the memory is wiped before it is freed
  • PRAGMA cipher_memory_security: allows full memory wiping to be disabled for performance when the feature is not required
  • PRAGMA cipher_kdf_algorithm, cipher_default_kdf_algorithm to control KDF algorithm selection between PBKDF2-HMAC-SHA1, PBKDF2-HMAC-SHA256 and PBKDF2-HMAC-SHA512
  • PRAGMA cipher_hmac_algorithm, cipher_default_hmac_algorithm to control HMAC algorithm selection between HMAC-SHA1, HMAC-SHA256 and PBKDF2-HMAC-SHA512
  • Based on upstream SQLite 3.25.2
  • When compiled with readline support, PRAGMA key and rekey lines will no longer be saved to history
  • Adds second optional parameter to sqlcipher_export to specify source database to support bidirectional exports
  • Fixes compatibility with LibreSSL 2.7.0+
  • Fixes compatibility with OpenSSL 1.1.x
  • Simplified and improved performance for PRAGMA cipher_migrate when migrating older database versions
  • Refactoring of SQLCipher tests into separate files by test type
  • PRAGMA cipher_plaintext_header_size and cipher_default_plaintext_header_size: allocates a portion of the database header which will not be encrypted to allow identification as a SQLite database
  • PRAGMA cipher_salt: retrieve or set the salt value for the database
  • Adds Podspec for using tagged versions of SQLCipher
  • Define SQLCIPHER_PROFILE_USE_FOPEN for WinXP support
  • Improved error handling for cryptographic providers
  • Improved memory handling for PRAGMA commands that return values
  • Improved version reporting to assist with identification of distribution
  • Major rewrite and simplification of internal codec and pager extension
  • Fixes compilation with --disable-amalgamation
  • Removes sqlcipher.xcodeproj build support

3.4.2 - (December 2017 - 3.4.2 changes)

Added

  • Added support for building with LibreSSL

Changed

  • Merge upstream SQLite 3.20.1
  • Text strings for SQLITE_ERROR and SQLITE_NOTADB changed to match upstream SQLite
  • Remove static modifier for codec password functions
  • Page alignment for mlock
  • Fix segfault in sqlcipher_cipher_ctx_cmp during rekey operation
  • Fix sqlcipher_export and cipher_migrate when tracing API in use
  • Validate codec page size when setting
  • Guard OpenSSL initialization and cleanup routines
  • Allow additional linker options to be passed via command line for Windows platforms

3.4.1 - (December 2016 - 3.4.1 changes)

Added

  • Added support for OpenSSL 1.1.0

Changed

  • Merged upstream SQLite 3.15.2

3.4.0 - (April 2016 - 3.4.0 changes)

Added

  • Added PRAGMA cipher_provider_version

Changed

  • Merged upstream SQLite 3.11.0

Deprecated

  • Deprecated PRAGMA cipher command

3.3.1 - (July 2015 - 3.3.1 changes)

Changed

  • Merge upstream SQLite 3.8.10.2
  • Fixed segfault when provided an invalid cipher name
  • Check for codec context when performing PRAGMA cipher_store_pass
  • Remove extraneous null check in PRAGMA cipher_migrate

3.3.0 - (March 2015 - 3.3.0 changes)

Added

  • Added FIPS API calls within the OpenSSL crypto provider
  • PRAGMA cipher_default_page_size - support for attaching non-default page sizes

Changed

  • Merged upstream SQLite 3.8.8.3

3.2.0 - (September 2014 - 3.2.0 changes)

Added

  • Added PRAGMA cipher_store_pass

Changed

  • Merged upstream SQLite 3.8.6
  • Renmed README to README.md

3.1.0 - (April 2014 - 3.1.0 changes)

Added

  • Added PRAGMA cipher_profile

Changed

  • Merged upstream SQLite 3.8.4.3

3.0.1 - (December 2013 - 3.0.1 changes)

Added

  • Added PRAGMA cipher_add_random to source external entropy

Changed

  • Fix PRAGMA cipher_migrate to handle passphrases longer than 64 characters & raw keys
  • Improvements to the libtomcrypt provider

3.0.0 - (November 2013 - 3.0.0 changes)

Added

  • Added PRAGMA cipher_migrate to migrate older database file formats

Changed

  • Merged upstream SQLite 3.8.0.2
  • Remove usage of VirtualLock/Unlock on WinRT and Windows Phone
  • Ignore HMAC read during Btree file copy
  • Fix lib naming for pkg-config
  • Use _v2 version of sqlite3_key and sqlite3_rekey
  • Update xcodeproj file

Security

  • Change KDF iteration length from 4,000 to 64,000