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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
| commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
| tree | f435a8308119effd964b339f76abb83a57c29483 /other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp | |
| parent | Initial commit. (diff) | |
| download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip | |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp')
| -rw-r--r-- | other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp b/other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp new file mode 100644 index 0000000000..1d399d707f --- /dev/null +++ b/other-licenses/7zstub/src/CPP/7zip/Crypto/MyAes.cpp @@ -0,0 +1,112 @@ +// Crypto/MyAes.cpp
+
+#include "StdAfx.h"
+
+#include "../../../C/CpuArch.h"
+
+#include "MyAes.h"
+
+namespace NCrypto {
+
+static struct CAesTabInit { CAesTabInit() { AesGenTables();} } g_AesTabInit;
+
+CAesCbcCoder::CAesCbcCoder(bool encodeMode, unsigned keySize):
+ _keySize(keySize),
+ _keyIsSet(false),
+ _encodeMode(encodeMode)
+{
+ _offset = ((0 - (unsigned)(ptrdiff_t)_aes) & 0xF) / sizeof(UInt32);
+ memset(_iv, 0, AES_BLOCK_SIZE);
+ SetFunctions(0);
+}
+
+STDMETHODIMP CAesCbcCoder::Init()
+{
+ AesCbc_Init(_aes + _offset, _iv);
+ return _keyIsSet ? S_OK : E_FAIL;
+}
+
+STDMETHODIMP_(UInt32) CAesCbcCoder::Filter(Byte *data, UInt32 size)
+{
+ if (!_keyIsSet)
+ return 0;
+ 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;
+ if (_keySize != 0 && size != _keySize)
+ return E_INVALIDARG;
+ AES_SET_KEY_FUNC setKeyFunc = _encodeMode ? Aes_SetKey_Enc : Aes_SetKey_Dec;
+ setKeyFunc(_aes + _offset + 4, data, size);
+ _keyIsSet = true;
+ return S_OK;
+}
+
+STDMETHODIMP CAesCbcCoder::SetInitVector(const Byte *data, UInt32 size)
+{
+ if (size != AES_BLOCK_SIZE)
+ return E_INVALIDARG;
+ memcpy(_iv, data, size);
+ CAesCbcCoder::Init(); // don't call virtual function here !!!
+ return S_OK;
+}
+
+EXTERN_C_BEGIN
+
+void MY_FAST_CALL AesCbc_Encode(UInt32 *ivAes, Byte *data, size_t numBlocks);
+void MY_FAST_CALL AesCbc_Decode(UInt32 *ivAes, Byte *data, size_t numBlocks);
+void MY_FAST_CALL AesCtr_Code(UInt32 *ivAes, Byte *data, size_t numBlocks);
+
+void MY_FAST_CALL AesCbc_Encode_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
+void MY_FAST_CALL AesCbc_Decode_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
+void MY_FAST_CALL AesCtr_Code_Intel(UInt32 *ivAes, Byte *data, size_t numBlocks);
+
+EXTERN_C_END
+
+bool CAesCbcCoder::SetFunctions(UInt32 algo)
+{
+ _codeFunc = _encodeMode ?
+ g_AesCbc_Encode :
+ g_AesCbc_Decode;
+ if (algo == 1)
+ {
+ _codeFunc = _encodeMode ?
+ AesCbc_Encode:
+ AesCbc_Decode;
+ }
+ if (algo == 2)
+ {
+ #ifdef MY_CPU_X86_OR_AMD64
+ if (g_AesCbc_Encode != AesCbc_Encode_Intel)
+ #endif
+ return false;
+ }
+ return true;
+}
+
+STDMETHODIMP CAesCbcCoder::SetCoderProperties(const PROPID *propIDs, const PROPVARIANT *coderProps, UInt32 numProps)
+{
+ for (UInt32 i = 0; i < numProps; i++)
+ {
+ const PROPVARIANT &prop = coderProps[i];
+ if (propIDs[i] == NCoderPropID::kDefaultProp)
+ {
+ if (prop.vt != VT_UI4)
+ return E_INVALIDARG;
+ if (!SetFunctions(prop.ulVal))
+ return E_NOTIMPL;
+ }
+ }
+ return S_OK;
+}
+
+}
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