RSA.VerifyData Method

Definition

Verifies that a digital signature is valid.

Overloads

VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding)

Verifies that a digital signature is valid by calculating the hash value of the specified data using the specified hash algorithm and padding, and comparing it to the provided signature.

VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding)

Verifies that a digital signature is valid by calculating the hash value of the specified stream using the specified hash algorithm and padding, and comparing it to the provided signature.

VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding)
VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding)

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 padding, and comparing it to the provided signature.

VerifyData(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding)

Verifies that a digital signature is valid by calculating the hash value of the specified data using the specified hash algorithm and padding, 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, System::Security::Cryptography::RSASignaturePadding ^ padding);
public bool VerifyData (byte[] data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
member this.VerifyData : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
Public Function VerifyData (data As Byte(), signature As Byte(), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean

Parameters

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.

padding
RSASignaturePadding

The padding mode.

Returns

true if the signature is valid; otherwise, false.

Exceptions

data is null.

-or-

signature is null.

-or-

padding is null.

hashAlgorithm.Name is null or Empty.

VerifyData(Stream, Byte[], HashAlgorithmName, RSASignaturePadding)

Verifies that a digital signature is valid by calculating the hash value of the specified stream using the specified hash algorithm and padding, and comparing it to the provided signature.

public:
 bool VerifyData(System::IO::Stream ^ data, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::RSASignaturePadding ^ padding);
public bool VerifyData (System.IO.Stream data, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
member this.VerifyData : System.IO.Stream * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
Public Function VerifyData (data As Stream, signature As Byte(), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean

Parameters

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.

padding
RSASignaturePadding

The padding mode.

Returns

true if the signature is valid; otherwise, false.

Exceptions

data is null.

-or-

signature is null.

-or-

padding is null.

hashAlgorithm.Name is null or Empty.

VerifyData(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding)

public:
 virtual bool VerifyData(ReadOnlySpan<System::Byte> data, ReadOnlySpan<System::Byte> signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::RSASignaturePadding ^ padding);
public virtual bool VerifyData (ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
abstract member VerifyData : ReadOnlySpan<byte> * ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
override this.VerifyData : ReadOnlySpan<byte> * ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
Public Overridable Function VerifyData (data As ReadOnlySpan(Of Byte), signature As ReadOnlySpan(Of Byte), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean

Parameters

signature
ReadOnlySpan<Byte>
hashAlgorithm
HashAlgorithmName

Returns

VerifyData(Byte[], Int32, Int32, Byte[], HashAlgorithmName, RSASignaturePadding)

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 padding, 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, System::Security::Cryptography::RSASignaturePadding ^ padding);
public virtual bool VerifyData (byte[] data, int offset, int count, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
abstract member VerifyData : byte[] * int * int * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
override this.VerifyData : byte[] * int * int * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
Public Overridable Function VerifyData (data As Byte(), offset As Integer, count As Integer, signature As Byte(), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean

Parameters

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.

padding
RSASignaturePadding

The padding mode.

Returns

true if the signature is valid; otherwise, false.

Exceptions

data is null.

-or-

signature is null.

-or-

padding is null.

hashAlgorithm.Name is null or Empty.

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.

Applies to