DSA.VerifyData Method
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Verifies that a digital signature is valid.
| VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, DSASignatureFormat) |
Verifies that a digital signature is valid for the provided data. |
| VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName) |
Verifies that a digital signature is valid by calculating the hash value of the data in a portion of a byte array using the specified hash algorithm and comparing it to the provided signature. |
| VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, DSASignatureFormat) |
Verifies that a digital signature is valid for the provided data. |
| VerifyData(Stream, Byte[], HashAlgorithmName, DSASignatureFormat) |
Verifies that a digital signature is valid for the provided data. |
| VerifyData(Stream, Byte[], HashAlgorithmName) |
Verifies that a digital signature is valid by calculating the hash value of the specified stream using the specified hash algorithm and comparing it to the provided signature. |
| VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName) |
Verifies that a digital signature is valid by calculating the hash value of the data in a byte span using the specified hash algorithm and comparing it to the provided signature. |
| VerifyData(Byte[], Byte[], HashAlgorithmName) |
Verifies that a digital signature is valid by calculating the hash value of the specified data using the specified hash algorithm and comparing it to the provided signature. |
| VerifyData(Byte[], Byte[], HashAlgorithmName, DSASignatureFormat) |
Verifies that a digital signature is valid for the provided data. |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid for the provided data.
public:
bool VerifyData(cli::array <System::Byte> ^ data, int offset, int count, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);public bool VerifyData(byte[] data, int offset, int count, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);member this.VerifyData : byte[] * int * int * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> boolPublic Function VerifyData (data As Byte(), offset As Integer, count As Integer, signature As Byte(), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As BooleanParameters
- data
- Byte[]
An array that contains the signed data.
- offset
- Int32
The starting index of the signed portion of data.
- count
- Int32
The number of bytes in data that were signed.
- signature
- Byte[]
The signature to verify.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to hash the data for the verification process.
- signatureFormat
- DSASignatureFormat
The encoding format for signature.
Returns
true if the digital signature is valid for the provided data; otherwise, false.
Exceptions
data or signature is null.
signatureFormat is not a known format.
-or-
offset is less than zero.
-or-
count is less than zero.
-or-
offset + count - 1 results in an index that is beyond the upper bound of data.
hashAlgorithm has a null or empty Name.
An error occurred in the hashing or verification operation.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid by calculating the hash value of the data in a portion of a byte array using the specified hash algorithm and comparing it to the provided signature.
public:
virtual bool VerifyData(cli::array <System::Byte> ^ data, int offset, int count, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);public virtual bool VerifyData(byte[] data, int offset, int count, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);abstract member VerifyData : byte[] * int * int * byte[] * System.Security.Cryptography.HashAlgorithmName -> bool
override this.VerifyData : byte[] * int * int * byte[] * System.Security.Cryptography.HashAlgorithmName -> boolPublic Overridable Function VerifyData (data As Byte(), offset As Integer, count As Integer, signature As Byte(), hashAlgorithm As HashAlgorithmName) As BooleanParameters
- data
- Byte[]
The signed data.
- offset
- Int32
The starting index at which to compute the hash.
- count
- Int32
The number of bytes to hash.
- signature
- Byte[]
The signature data to be verified.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to create the hash value of the data.
Returns
true if the digital signature is valid; otherwise, false.
Exceptions
offset is less than zero.
-or-
count is less than zero.
-or-
offset + count - 1 results in an index that is beyond the upper bound of data.
The implementation type only supports legacy DSA (FIPS 186-2), and the hash algorithm is not SHA-1.
-or-
Verifying the signature otherwise failed.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.1 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid for the provided data.
public:
bool VerifyData(ReadOnlySpan<System::Byte> data, ReadOnlySpan<System::Byte> signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);public bool VerifyData(ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);member this.VerifyData : ReadOnlySpan<byte> * ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> boolPublic Function VerifyData (data As ReadOnlySpan(Of Byte), signature As ReadOnlySpan(Of Byte), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As BooleanParameters
- data
- ReadOnlySpan<Byte>
The signed data.
- signature
- ReadOnlySpan<Byte>
The signature to verify.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to hash the data for the verification process.
- signatureFormat
- DSASignatureFormat
The encoding format for signature.
Returns
true if the digital signature is valid for the provided data; otherwise, false.
Exceptions
signatureFormat is not a known format.
An error occurred in the hashing or verification operation.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid for the provided data.
public:
bool VerifyData(System::IO::Stream ^ data, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);public bool VerifyData(System.IO.Stream data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);member this.VerifyData : System.IO.Stream * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> boolPublic Function VerifyData (data As Stream, signature As Byte(), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As BooleanParameters
- data
- Stream
The signed data.
- signature
- Byte[]
The signature to verify.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to hash the data for the verification process.
- signatureFormat
- DSASignatureFormat
The encoding format for signature.
Returns
true if the digital signature is valid for the provided data; otherwise, false.
Exceptions
data or signature is null.
signatureFormat is not a known format.
hashAlgorithm has a null or empty Name.
An error occurred in the hashing or verification operation.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid by calculating the hash value of the specified stream using the specified hash algorithm and comparing it to the provided signature.
public:
virtual bool VerifyData(System::IO::Stream ^ data, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);public virtual bool VerifyData(System.IO.Stream data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);abstract member VerifyData : System.IO.Stream * byte[] * System.Security.Cryptography.HashAlgorithmName -> bool
override this.VerifyData : System.IO.Stream * byte[] * System.Security.Cryptography.HashAlgorithmName -> boolPublic Overridable Function VerifyData (data As Stream, signature As Byte(), hashAlgorithm As HashAlgorithmName) As BooleanParameters
- data
- Stream
The signed data.
- signature
- Byte[]
The signature data to be verified.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to create the hash value of the data.
Returns
true if the digital signature is valid; otherwise, false.
Exceptions
The implementation type only supports legacy DSA (FIPS 186-2), and the hash algorithm is not SHA-1.
-or-
Verifying the signature otherwise failed.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.1 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid by calculating the hash value of the data in a byte span using the specified hash algorithm and comparing it to the provided signature.
public:
virtual bool VerifyData(ReadOnlySpan<System::Byte> data, ReadOnlySpan<System::Byte> signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);public virtual bool VerifyData(ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);abstract member VerifyData : ReadOnlySpan<byte> * ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName -> bool
override this.VerifyData : ReadOnlySpan<byte> * ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName -> boolPublic Overridable Function VerifyData (data As ReadOnlySpan(Of Byte), signature As ReadOnlySpan(Of Byte), hashAlgorithm As HashAlgorithmName) As BooleanParameters
- data
- ReadOnlySpan<Byte>
The signed data.
- signature
- ReadOnlySpan<Byte>
The signature to be verified.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to create the hash value of the data.
Returns
true if the digital signature is valid; otherwise, false.
Exceptions
The implementation type only supports legacy DSA (FIPS 186-2), and the hash algorithm is not SHA-1.
-or-
Verifying the signature otherwise failed.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Standard | 2.1 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid by calculating the hash value of the specified data using the specified hash algorithm and comparing it to the provided signature.
public:
bool VerifyData(cli::array <System::Byte> ^ data, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);public bool VerifyData(byte[] data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);member this.VerifyData : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName -> boolPublic Function VerifyData (data As Byte(), signature As Byte(), hashAlgorithm As HashAlgorithmName) As BooleanParameters
- data
- Byte[]
The signed data.
- signature
- Byte[]
The signature data to be verified.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to create the hash value of the data.
Returns
true if the digital signature is valid; otherwise, false.
Exceptions
The implementation type only supports legacy DSA (FIPS 186-2), and the hash algorithm is not SHA-1.
-or-
Verifying the signature otherwise failed.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 2.1 |
- Source:
- DSA.cs
- Source:
- DSA.cs
- Source:
- DSA.cs
Verifies that a digital signature is valid for the provided data.
public:
bool VerifyData(cli::array <System::Byte> ^ data, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);public bool VerifyData(byte[] data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);member this.VerifyData : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> boolPublic Function VerifyData (data As Byte(), signature As Byte(), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As BooleanParameters
- data
- Byte[]
The signed data.
- signature
- Byte[]
The signature to verify.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to hash the data for the verification process.
- signatureFormat
- DSASignatureFormat
The encoding format for signature.
Returns
true if the digital signature is valid for the provided data; otherwise, false.
Exceptions
data or signature is null.
signatureFormat is not a known format.
hashAlgorithm has a null or empty Name.
An error occurred in the hashing or verification operation.
Applies to
.NET 10 and other versions
| Product | Versions |
|---|---|
| .NET | 5, 6, 7, 8, 9, 10 |
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