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Add W3C_PADDING to encryption path

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This commit is contained in:
Jeffrey Walton 2017-02-06 08:09:09 -05:00
parent 061f272da3
commit 8e088b4865
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
2 changed files with 9 additions and 3 deletions
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10
filters.cpp
View File

@ -700,8 +700,8 @@ void StreamTransformationFilter::LastPut(const byte *inString, size_t length)
break;
case PKCS_PADDING:
case ONE_AND_ZEROS_PADDING:
case W3C_PADDING:
case ONE_AND_ZEROS_PADDING:
unsigned int s;
s = m_cipher.MandatoryBlockSize();
CRYPTOPP_ASSERT(s > 1);
@ -713,9 +713,15 @@ void StreamTransformationFilter::LastPut(const byte *inString, size_t length)
if (m_padding == PKCS_PADDING)
{
CRYPTOPP_ASSERT(s < 256);
byte pad = byte(s-length);
byte pad = static_cast<byte>(s-length);
memset(space+length, pad, s-length);
}
else if (m_padding == W3C_PADDING)
{
CRYPTOPP_ASSERT(s < 256);
memset(space+length, 0, s-length-1);
space[s-1] = static_cast<byte>(s-length);
}
else
{
space[length] = 0x80;

2
filters.h
View File

@ -480,7 +480,7 @@ struct BlockPaddingSchemeDef
PKCS_PADDING,
//! \brief 1 and 0's padding added to a block
ONE_AND_ZEROS_PADDING,
//! \brief [Random bytes (0 ~ N-2) and padding's length (N-1)]'s padding to a block
//! \brief W3C padding added to a block
W3C_PADDING,
//! \brief Default padding scheme
DEFAULT_PADDING