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-rw-r--r--src/libs/7zip/win/CPP/7zip/Crypto/MyAes.cpp48
1 files changed, 48 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Crypto/MyAes.cpp b/src/libs/7zip/win/CPP/7zip/Crypto/MyAes.cpp
new file mode 100644
index 000000000..70a7dccff
--- /dev/null
+++ b/src/libs/7zip/win/CPP/7zip/Crypto/MyAes.cpp
@@ -0,0 +1,48 @@
+// Crypto/MyAes.cpp
+
+#include "StdAfx.h"
+
+#include "MyAes.h"
+
+namespace NCrypto {
+
+struct CAesTabInit { CAesTabInit() { AesGenTables();} } g_AesTabInit;
+
+CAesCbcCoder::CAesCbcCoder()
+{
+ _offset = ((0 - (unsigned)(ptrdiff_t)_aes) & 0xF) / sizeof(UInt32);
+}
+
+STDMETHODIMP CAesCbcCoder::Init() { return S_OK; }
+
+STDMETHODIMP_(UInt32) CAesCbcCoder::Filter(Byte *data, UInt32 size)
+{
+ if (size == 0)
+ return 0;
+ if (size < AES_BLOCK_SIZE)
+ return AES_BLOCK_SIZE;
+ size >>= 4;
+ _codeFunc(_aes + _offset, data, size);
+ return size << 4;
+}
+
+STDMETHODIMP CAesCbcCoder::SetKey(const Byte *data, UInt32 size)
+{
+ if ((size & 0x7) != 0 || size < 16 || size > 32)
+ return E_INVALIDARG;
+ _setKeyFunc(_aes + _offset + 4, data, size);
+ return S_OK;
+}
+
+STDMETHODIMP CAesCbcCoder::SetInitVector(const Byte *data, UInt32 size)
+{
+ if (size != AES_BLOCK_SIZE)
+ return E_INVALIDARG;
+ AesCbc_Init(_aes + _offset, data);
+ return S_OK;
+}
+
+CAesCbcEncoder::CAesCbcEncoder() { _codeFunc = g_AesCbc_Encode; _setKeyFunc = Aes_SetKey_Enc; }
+CAesCbcDecoder::CAesCbcDecoder() { _codeFunc = g_AesCbc_Decode; _setKeyFunc = Aes_SetKey_Dec; }
+
+}