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| author | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-06-20 17:43:35 +0200 |
|---|---|---|
| committer | Mounir IDRASSI <mounir.idrassi@idrix.fr> | 2017-06-21 01:39:55 +0200 |
| commit | 70097ecfe54a9630e1e77fdc30204a5460228193 (patch) | |
| tree | f43481a6ede0e0fcd81f8ba02006613d02d23032 /src/Volume/Cipher.cpp | |
| parent | ee5c1784ea0ed1328f7607bf3ea619ef3bd96d03 (diff) | |
| download | VeraCrypt-70097ecfe54a9630e1e77fdc30204a5460228193.tar.gz VeraCrypt-70097ecfe54a9630e1e77fdc30204a5460228193.zip | |
Crypto: Add optimized Camellia assembly implementation for x86_64 based on work by Jussi Kivilinna (https://github.com/jkivilin/supercop-blockciphers). This improve speed by a factor of 2.5 when AES-NI supported by CPU and by 30% if AES-NI not supported.
Diffstat (limited to 'src/Volume/Cipher.cpp')
| -rw-r--r-- | src/Volume/Cipher.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/Volume/Cipher.cpp b/src/Volume/Cipher.cpp index be8cc3eb..1b5df79f 100644 --- a/src/Volume/Cipher.cpp +++ b/src/Volume/Cipher.cpp @@ -24,6 +24,23 @@ #endif #include "Crypto/cpu.h" +extern "C" int IsAesHwCpuSupported () +{ +#ifdef TC_AES_HW_CPU + static bool state = false; + static bool stateValid = false; + + if (!stateValid) + { + state = g_hasAESNI ? true : false; + stateValid = true; + } + return state && Cipher::IsHwSupportEnabled(); +#else + return false; +#endif +} + namespace VeraCrypt { Cipher::Cipher () : Initialized (false) @@ -349,6 +366,39 @@ namespace VeraCrypt { camellia_set_key (key, ScheduledKey.Ptr()); } + + void CipherCamellia::EncryptBlocks (byte *data, size_t blockCount) const + { + if (!Initialized) + throw NotInitialized (SRC_POS); + +#if CRYPTOPP_BOOL_X64 + camellia_encrypt_blocks ( ScheduledKey.Ptr(), data, data, blockCount); +#else + Cipher::EncryptBlocks (data, blockCount); +#endif + } + + void CipherCamellia::DecryptBlocks (byte *data, size_t blockCount) const + { + if (!Initialized) + throw NotInitialized (SRC_POS); + +#if CRYPTOPP_BOOL_X64 + camellia_decrypt_blocks ( ScheduledKey.Ptr(), data, data, blockCount); +#else + Cipher::DecryptBlocks (data, blockCount); +#endif + } + + bool CipherCamellia::IsHwSupportAvailable () const + { +#if CRYPTOPP_BOOL_X64 + return true; +#else + return false; +#endif + } // GOST89 void CipherGost89::Decrypt (byte *data) const |