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https://github.com/Divested-Mobile/DivestOS-Build.git
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9a6c3f99ed
- No patches were found with incorrect authorship/From: lines - The older AndroidHardening patch repos are no longer available to verify CID. - New GrapheneOS patches do not include a CID. - *Signature_Spoofing.patch CID could not be found. - Fixed CID of *Harden_Sig_Spoofing.patch to match 14.1 - Fixed CID of *LGE_Fixes.patch to match 14.1 - Fixed CID of *Harden.patch to match 14.1 - Added edit note to *Harden.patch - Fixed CID of *PREREQ_Handle_All_Modes.patch to match 14.1 - Fixed CID of *More_Preferred_Network_Modes.patch to match 14.1 - Fixed CID of *AES256.patch to match 14.1 - Fixed CID of *0001-OTA_Keys.patch to match 18.1 - Fixed CID of *Camera_Fix.patch to match 15.1 - Fixed CID of *Connectivity.patch to match 14.1 - Fixed CID of *Fix_Calling.patch to match 14.1 - Fixed CID of *Remove_Analytics.patch to match 14.1 - Fixed CID of Unused-*.patch/audio_extn to match original Signed-off-by: Tad <tad@spotco.us>
57 lines
1.5 KiB
Diff
57 lines
1.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Tad <tad@spotco.us>
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Date: Wed, 28 Feb 2018 08:21:28 -0500
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Subject: [PATCH] Build time variable for AES-256 encryption
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Change-Id: Ib2d53a1d22e935ef0fa5f0f91e3bf5308d9c6459
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---
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Android.mk | 4 ++++
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cryptfs.cpp | 9 ++++++++-
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2 files changed, 12 insertions(+), 1 deletion(-)
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diff --git a/Android.mk b/Android.mk
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index 2beae28..25fd823 100644
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--- a/Android.mk
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+++ b/Android.mk
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@@ -115,6 +115,10 @@ ifeq ($(TARGET_HW_DISK_ENCRYPTION),true)
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vold_cflags += -DCONFIG_HW_DISK_ENCRYPTION
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endif
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+ifeq ($(TARGET_WANTS_STRONG_ENCRYPTION),true)
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+LOCAL_CFLAGS += -DCONFIG_STRONG_ENCRYPTION
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+endif
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+
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ifneq ($(TARGET_EXFAT_DRIVER),)
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vold_cflags += -DCONFIG_EXFAT_DRIVER=\"$(TARGET_EXFAT_DRIVER)\"
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mini_src_files += fs/Exfat.cpp
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diff --git a/cryptfs.cpp b/cryptfs.cpp
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index e33afdd..5102f12 100644
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--- a/cryptfs.cpp
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+++ b/cryptfs.cpp
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@@ -75,9 +75,17 @@ extern "C" {
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#define DM_CRYPT_BUF_SIZE 4096
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+#ifdef CONFIG_STRONG_ENCRYPTION
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+#define HASH_COUNT 6000
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+#define KEY_LEN_BYTES 32
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+#define IV_LEN_BYTES 32
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+#define RSA_KEY_SIZE 4096
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+#else
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#define HASH_COUNT 2000
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#define KEY_LEN_BYTES 16
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#define IV_LEN_BYTES 16
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+#define RSA_KEY_SIZE 2048
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+#endif
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#define KEY_IN_FOOTER "footer"
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@@ -93,7 +101,6 @@ extern "C" {
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#define TABLE_LOAD_RETRIES 10
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-#define RSA_KEY_SIZE 2048
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#define RSA_KEY_SIZE_BYTES (RSA_KEY_SIZE / 8)
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#define RSA_EXPONENT 0x10001
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#define KEYMASTER_CRYPTFS_RATE_LIMIT 1 // Maximum one try per second
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