RSA.VerifyData Method

Reference

Definition

Namespace:: System.Security.Cryptography

Assembly:: System.Security.Cryptography.Algorithms.dll

Assembly:: System.Security.Cryptography.dll

Assembly:: mscorlib.dll

Assembly:: netstandard.dll

Important

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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)	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(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)

Source:: RSA.cs

Source:: RSA.cs

Source:: RSA.cs

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

Boolean

true if the signature is valid; otherwise, false.

Exceptions

ArgumentNullException

data is null.

-or-

signature is null.

-or-

padding is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

CryptographicException

padding is unknown, or not supported by this implementation.

Applies to

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

Source:: RSA.cs

Source:: RSA.cs

Source:: RSA.cs

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

Boolean

true if the signature is valid; otherwise, false.

Exceptions

ArgumentNullException

data is null.

-or-

signature is null.

-or-

padding is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

CryptographicException

padding is unknown, or not supported by this implementation.

Applies to

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

Source:: RSA.cs

Source:: RSA.cs

Source:: RSA.cs

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:
 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

data: ReadOnlySpan<Byte>

The signed data.

signature: ReadOnlySpan<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

Boolean

true if the signature is valid; otherwise, false.

Exceptions

ArgumentException

hashAlgorithm.Name is null or Empty.

CryptographicException

padding is unknown, or not supported by this implementation.

Applies to

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

Source:: RSA.cs

Source:: RSA.cs

Source:: RSA.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 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

Boolean

true if the signature is valid; otherwise, false.

Exceptions

ArgumentNullException

data is null.

-or-

signature is null.

-or-

padding is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

ArgumentOutOfRangeException

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.

CryptographicException

padding is unknown, or not supported by this implementation.

Applies to

Share via

RSA.VerifyData Method

Definition

Overloads

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

Parameters

Returns

Exceptions

Applies to

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

Parameters

Returns

Exceptions

Applies to

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

Parameters

Returns

Exceptions

Applies to

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

Parameters

Returns

Exceptions

Applies to

Additional resources