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49a73e3e
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体验新版 GitCode,发现更多精彩内容 >>
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49a73e3e
编写于
3月 23, 2021
作者:
K
Kevin Jones
提交者:
GitHub
3月 23, 2021
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电子邮件补丁
差异文件
Use the one-shot hash functions for asymmetric operations (#50061)
上级
50011577
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
30 addition
and
4 deletion
+30
-4
src/libraries/Common/src/Internal/Cryptography/AsymmetricAlgorithmHelpers.Hash.cs
.../Internal/Cryptography/AsymmetricAlgorithmHelpers.Hash.cs
+30
-4
未找到文件。
src/libraries/Common/src/Internal/Cryptography/AsymmetricAlgorithmHelpers.Hash.cs
浏览文件 @
49a73e3e
...
...
@@ -13,6 +13,8 @@ namespace Internal.Cryptography
//
internal
static
partial
class
AsymmetricAlgorithmHelpers
{
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5350"
,
Justification
=
"SHA1 is used when the user asks for it."
)]
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5351"
,
Justification
=
"MD5 is used when the user asks for it."
)]
public
static
byte
[]
HashData
(
byte
[]
data
,
int
offset
,
int
count
,
HashAlgorithmName
hashAlgorithm
)
{
// The classes that call us are sealed and their base class has checked this already.
...
...
@@ -21,10 +23,22 @@ public static byte[] HashData(byte[] data, int offset, int count, HashAlgorithmN
Debug
.
Assert
(
offset
>=
0
&&
offset
<=
data
.
Length
-
count
);
Debug
.
Assert
(!
string
.
IsNullOrEmpty
(
hashAlgorithm
.
Name
));
#if NET5_0_OR_GREATER
ReadOnlySpan
<
byte
>
source
=
data
.
AsSpan
(
offset
,
count
);
return
hashAlgorithm
==
HashAlgorithmName
.
SHA256
?
SHA256
.
HashData
(
source
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA1
?
SHA1
.
HashData
(
source
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA512
?
SHA512
.
HashData
(
source
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA384
?
SHA384
.
HashData
(
source
)
:
hashAlgorithm
==
HashAlgorithmName
.
MD5
?
MD5
.
HashData
(
source
)
:
throw
new
CryptographicException
(
SR
.
Cryptography_UnknownHashAlgorithm
,
hashAlgorithm
.
Name
);
#else
using
(
HashAlgorithm
hasher
=
GetHashAlgorithm
(
hashAlgorithm
))
{
return
hasher
.
ComputeHash
(
data
,
offset
,
count
);
}
#endif
}
public
static
byte
[]
HashData
(
Stream
data
,
HashAlgorithmName
hashAlgorithm
)
...
...
@@ -39,25 +53,37 @@ public static byte[] HashData(Stream data, HashAlgorithmName hashAlgorithm)
}
}
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5350"
,
Justification
=
"SHA1 is used when the user asks for it."
)]
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5351"
,
Justification
=
"MD5 is used when the user asks for it."
)]
public
static
bool
TryHashData
(
ReadOnlySpan
<
byte
>
source
,
Span
<
byte
>
destination
,
HashAlgorithmName
hashAlgorithm
,
out
int
bytesWritten
)
{
// The classes that call us are sealed and their base class has checked this already.
Debug
.
Assert
(!
string
.
IsNullOrEmpty
(
hashAlgorithm
.
Name
));
#if NET5_0_OR_GREATER
return
hashAlgorithm
==
HashAlgorithmName
.
SHA256
?
SHA256
.
TryHashData
(
source
,
destination
,
out
bytesWritten
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA1
?
SHA1
.
TryHashData
(
source
,
destination
,
out
bytesWritten
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA512
?
SHA512
.
TryHashData
(
source
,
destination
,
out
bytesWritten
)
:
hashAlgorithm
==
HashAlgorithmName
.
SHA384
?
SHA384
.
TryHashData
(
source
,
destination
,
out
bytesWritten
)
:
hashAlgorithm
==
HashAlgorithmName
.
MD5
?
MD5
.
TryHashData
(
source
,
destination
,
out
bytesWritten
)
:
throw
new
CryptographicException
(
SR
.
Cryptography_UnknownHashAlgorithm
,
hashAlgorithm
.
Name
);
#else
using
(
HashAlgorithm
hasher
=
GetHashAlgorithm
(
hashAlgorithm
))
{
return
hasher
.
TryComputeHash
(
source
,
destination
,
out
bytesWritten
);
}
#endif
}
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5351"
,
Justification
=
"MD5 is used when the user asks for it."
)]
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5350"
,
Justification
=
"SHA1 is used when the user asks for it."
)]
[
System
.
Diagnostics
.
CodeAnalysis
.
SuppressMessage
(
"Microsoft.Security"
,
"CA5351"
,
Justification
=
"MD5 is used when the user asks for it."
)]
private
static
HashAlgorithm
GetHashAlgorithm
(
HashAlgorithmName
hashAlgorithmName
)
=>
hashAlgorithmName
==
HashAlgorithmName
.
MD5
?
MD5
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA1
?
SHA1
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA256
?
SHA256
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA1
?
SHA1
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA512
?
SHA512
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA384
?
SHA384
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
SHA512
?
(
HashAlgorithm
)
SHA512
.
Create
()
:
hashAlgorithmName
==
HashAlgorithmName
.
MD5
?
MD5
.
Create
()
:
throw
new
CryptographicException
(
SR
.
Cryptography_UnknownHashAlgorithm
,
hashAlgorithmName
.
Name
);
}
}
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