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twrpDigest refactor

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This patch is to refactor twrpDigest using polymorphism
and inheritance to use the same call patterns for creating and
reading a digest. Now a library.
Use SHA2 from libcrypto. SHA2 is default if device has libcrypto.

Change string MD5 everywhere to use digest or Digest instead. Updated
string tags to digest. Translation will be required.

Switch out digest code into a driver class from partitionmanager.

SHA2 is better for digest creation due to decreased collision space
compared to MD5 and SHA1.

See https://en.wikipedia.org/wiki/SHA-2

Change-Id: I74b5546789990b12aa4ce2e389d25f80a3fe213f
This commit is contained in:
bigbiff bigbiff
2017-06-17 07:05:45 -05:00
committed by Ethan Yonker
parent 92e2531dca
commit 56cf564658
60 changed files with 2364 additions and 2091 deletions
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data.cpp
+11 -3
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@@ -679,14 +679,14 @@ void DataManager::SetDefaultValues()
mPersist.SetValue(TW_INSTALL_REBOOT_VAR, "0");
mPersist.SetValue(TW_SIGNED_ZIP_VERIFY_VAR, "0");
mPersist.SetValue(TW_FORCE_MD5_CHECK_VAR, "0");
mPersist.SetValue(TW_DISABLE_FREE_SPACE_VAR, "0");
mPersist.SetValue(TW_FORCE_DIGEST_CHECK_VAR, "0");
mPersist.SetValue(TW_USE_COMPRESSION_VAR, "0");
mPersist.SetValue(TW_TIME_ZONE_VAR, "CST6CDT,M3.2.0,M11.1.0");
mPersist.SetValue(TW_GUI_SORT_ORDER, "1");
mPersist.SetValue(TW_RM_RF_VAR, "0");
mPersist.SetValue(TW_SKIP_MD5_CHECK_VAR, "0");
mPersist.SetValue(TW_SKIP_MD5_GENERATE_VAR, "0");
mPersist.SetValue(TW_SKIP_DIGEST_CHECK_VAR, "0");
mPersist.SetValue(TW_SKIP_DIGEST_GENERATE_VAR, "0");
mPersist.SetValue(TW_SDEXT_SIZE, "0");
mPersist.SetValue(TW_SWAP_SIZE, "0");
mPersist.SetValue(TW_SDPART_FILE_SYSTEM, "ext3");
@@ -708,6 +708,14 @@ void DataManager::SetDefaultValues()
mData.SetValue("tw_background_thread_running", "0");
mData.SetValue(TW_RESTORE_FILE_DATE, "0");
mPersist.SetValue("tw_military_time", "0");
#ifdef TW_INCLUDE_CRYPTO
mConst.SetValue(TW_USE_SHA2, "1");
mConst.SetValue(TW_NO_SHA2, "0");
#else
mConst.SetValue(TW_NO_SHA2, "1");
#endif
#ifdef TW_NO_SCREEN_TIMEOUT
mConst.SetValue("tw_screen_timeout_secs", "0");
mConst.SetValue("tw_no_screen_timeout", "1");