ECDsa.SignData Method

Definition

Namespace:

System.Security.Cryptography

Assembly:

System.Security.Cryptography.dll

Computes the hash value of the specified data and signs it.

Overloads

SignData(Byte[], HashAlgorithmName)	Computes the hash value of the specified byte array using the specified hash algorithm and signs the resulting hash value.
SignData(Stream, HashAlgorithmName)	Computes the hash value of the specified stream using the specified hash algorithm and signs the resulting hash value.
SignData(ReadOnlySpan<Byte>, HashAlgorithmName)	Computes the hash value of the specified data and signs it.
SignData(Byte[], HashAlgorithmName, DSASignatureFormat)	Computes the hash value of the specified data and signs it using the specified signature format.
SignData(Stream, HashAlgorithmName, DSASignatureFormat)	Computes the hash value of the specified data and signs it using the specified signature format.
SignData(ReadOnlySpan<Byte>, HashAlgorithmName, DSASignatureFormat)	Computes the hash value of the specified data and signs it using the specified signature format.
SignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName)	Computes the hash value of the specified data and signs it in the indicated format into the provided buffer.
SignData(Byte[], Int32, Int32, HashAlgorithmName)	Computes the hash value of a portion of the specified byte array using the specified hash algorithm and signs the resulting hash value.
SignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, DSASignatureFormat)	Computes the hash value of the specified data and signs it in the indicated format into the provided buffer.
SignData(Byte[], Int32, Int32, HashAlgorithmName, DSASignatureFormat)	Computes the hash value of the specified data and signs it using the specified signature format.

SignData(Byte[], HashAlgorithmName)

Source:

ECDsa.cs

Computes the hash value of the specified byte array using the specified hash algorithm and signs the resulting hash value.

public:
 virtual cli::array <System::Byte> ^ SignData(cli::array <System::Byte> ^ data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

public virtual byte[] SignData (byte[] data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

abstract member SignData : byte[] * System.Security.Cryptography.HashAlgorithmName -> byte[]
override this.SignData : byte[] * System.Security.Cryptography.HashAlgorithmName -> byte[]

Public Overridable Function SignData (data As Byte(), hashAlgorithm As HashAlgorithmName) As Byte()

Parameters

data

Byte[]

The input data for which to compute the hash.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

SignData(Stream, HashAlgorithmName)

Source:

ECDsa.cs

Computes the hash value of the specified stream using the specified hash algorithm and signs the resulting hash value.

public:
 virtual cli::array <System::Byte> ^ SignData(System::IO::Stream ^ data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

public virtual byte[] SignData (System.IO.Stream data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

abstract member SignData : System.IO.Stream * System.Security.Cryptography.HashAlgorithmName -> byte[]
override this.SignData : System.IO.Stream * System.Security.Cryptography.HashAlgorithmName -> byte[]

Public Overridable Function SignData (data As Stream, hashAlgorithm As HashAlgorithmName) As Byte()

Parameters

data

Stream

The input stream for which to compute the hash.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

SignData(ReadOnlySpan<Byte>, HashAlgorithmName)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it.

public:
 cli::array <System::Byte> ^ SignData(ReadOnlySpan<System::Byte> data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

public byte[] SignData (ReadOnlySpan<byte> data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

member this.SignData : ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName -> byte[]

Public Function SignData (data As ReadOnlySpan(Of Byte), hashAlgorithm As HashAlgorithmName) As Byte()

Parameters

data

ReadOnlySpan<Byte>

The data to hash and sign.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentException

hashAlgorithm's Name is an empty string.

ArgumentNullException

hashAlgorithm's Name is null.

Remarks

This method will use IeeeP1363FixedFieldConcatenation to encode the the signature. To use a different signature format, use SignData(ReadOnlySpan<Byte>, HashAlgorithmName, DSASignatureFormat).

SignData(Byte[], HashAlgorithmName, DSASignatureFormat)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it using the specified signature format.

public:
 cli::array <System::Byte> ^ SignData(cli::array <System::Byte> ^ data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);

public byte[] SignData (byte[] data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);

member this.SignData : byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> byte[]

Public Function SignData (data As Byte(), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As Byte()

Parameters

data

Byte[]

The data to sign.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

signatureFormat

DSASignatureFormat

The encoding format to use for the signature.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data is null.

ArgumentOutOfRangeException

signatureFormat is not a known format.

ArgumentException

hashAlgorithm has a null or empty Name.

CryptographicException

An error occurred in the hashing or signing operation.

SignData(Stream, HashAlgorithmName, DSASignatureFormat)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it using the specified signature format.

public:
 cli::array <System::Byte> ^ SignData(System::IO::Stream ^ data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);

public byte[] SignData (System.IO.Stream data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);

member this.SignData : System.IO.Stream * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> byte[]

Public Function SignData (data As Stream, hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As Byte()

Parameters

data

Stream

The data to sign.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

signatureFormat

DSASignatureFormat

The encoding format to use for the signature.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data is null.

ArgumentOutOfRangeException

signatureFormat is not a known format.

ArgumentException

hashAlgorithm has a null or empty Name.

CryptographicException

An error occurred in the hashing or signing operation.

SignData(ReadOnlySpan<Byte>, HashAlgorithmName, DSASignatureFormat)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it using the specified signature format.

public:
 cli::array <System::Byte> ^ SignData(ReadOnlySpan<System::Byte> data, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);

public byte[] SignData (ReadOnlySpan<byte> data, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);

member this.SignData : ReadOnlySpan<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> byte[]

Public Function SignData (data As ReadOnlySpan(Of Byte), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As Byte()

Parameters

data

ReadOnlySpan<Byte>

The data to hash and sign.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

signatureFormat

DSASignatureFormat

The encoding format to use for the signature.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentException

hashAlgorithm's Name is an empty string.

ArgumentNullException

hashAlgorithm's Name is null.

ArgumentOutOfRangeException

signatureFormat is not a known format.

SignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it in the indicated format into the provided buffer.

public:
 int SignData(ReadOnlySpan<System::Byte> data, Span<System::Byte> destination, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

public int SignData (ReadOnlySpan<byte> data, Span<byte> destination, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

member this.SignData : ReadOnlySpan<byte> * Span<byte> * System.Security.Cryptography.HashAlgorithmName -> int

Public Function SignData (data As ReadOnlySpan(Of Byte), destination As Span(Of Byte), hashAlgorithm As HashAlgorithmName) As Integer

Parameters

data

ReadOnlySpan<Byte>

The data to hash and sign.

destination

Span<Byte>

The buffer to receive the signature.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

Returns

Int32

The total number of bytes written to destination.

Exceptions

ArgumentException

hashAlgorithm's Name is an empty string.

-or-

The buffer in destination is too small to hold the signature.

ArgumentNullException

hashAlgorithm's Name is null.

Remarks

This method will use IeeeP1363FixedFieldConcatenation to encode the the signature. To use a different signature format, use SignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, DSASignatureFormat).

SignData(Byte[], Int32, Int32, HashAlgorithmName)

Source:

ECDsa.cs

Computes the hash value of a portion of the specified byte array using the specified hash algorithm and signs the resulting hash value.

public:
 virtual cli::array <System::Byte> ^ SignData(cli::array <System::Byte> ^ data, int offset, int count, System::Security::Cryptography::HashAlgorithmName hashAlgorithm);

public virtual byte[] SignData (byte[] data, int offset, int count, System.Security.Cryptography.HashAlgorithmName hashAlgorithm);

abstract member SignData : byte[] * int * int * System.Security.Cryptography.HashAlgorithmName -> byte[]
override this.SignData : byte[] * int * int * System.Security.Cryptography.HashAlgorithmName -> byte[]

Public Overridable Function SignData (data As Byte(), offset As Integer, count As Integer, hashAlgorithm As HashAlgorithmName) As Byte()

Parameters

data

Byte[]

The input data for which to compute the hash.

offset

Int32

The offset into the array at which to begin using data.

count

Int32

The number of bytes in the array to use as data.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data 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.

SignData(ReadOnlySpan<Byte>, Span<Byte>, HashAlgorithmName, DSASignatureFormat)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it in the indicated format into the provided buffer.

public:
 int SignData(ReadOnlySpan<System::Byte> data, Span<System::Byte> destination, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);

public int SignData (ReadOnlySpan<byte> data, Span<byte> destination, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);

member this.SignData : ReadOnlySpan<byte> * Span<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> int

Public Function SignData (data As ReadOnlySpan(Of Byte), destination As Span(Of Byte), hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As Integer

Parameters

data

ReadOnlySpan<Byte>

The data to hash and sign.

destination

Span<Byte>

The buffer to receive the signature.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

signatureFormat

DSASignatureFormat

The encoding format to use for the signature.

Returns

Int32

The total number of bytes written to destination.

Exceptions

ArgumentException

hashAlgorithm's Name is an empty string.

-or-

The buffer in destination is too small to hold the signature.

ArgumentNullException

hashAlgorithm's Name is null.

ArgumentOutOfRangeException

signatureFormat is not a known format.

SignData(Byte[], Int32, Int32, HashAlgorithmName, DSASignatureFormat)

Source:

ECDsa.cs

Computes the hash value of the specified data and signs it using the specified signature format.

public:
 cli::array <System::Byte> ^ SignData(cli::array <System::Byte> ^ data, int offset, int count, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::DSASignatureFormat signatureFormat);

public byte[] SignData (byte[] data, int offset, int count, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.DSASignatureFormat signatureFormat);

member this.SignData : byte[] * int * int * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.DSASignatureFormat -> byte[]

Public Function SignData (data As Byte(), offset As Integer, count As Integer, hashAlgorithm As HashAlgorithmName, signatureFormat As DSASignatureFormat) As Byte()

Parameters

data

Byte[]

The data to sign.

offset

Int32

The offset into data at which to begin hashing.

count

Int32

The number of bytes to read from data.

hashAlgorithm

HashAlgorithmName

The hash algorithm to use to create the hash value.

signatureFormat

DSASignatureFormat

The encoding format to use for the signature.

Returns

Byte[]

The ECDSA signature for the specified data.

Exceptions

ArgumentNullException

data is null.

ArgumentOutOfRangeException

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.

ArgumentException

hashAlgorithm has a null or empty Name.

CryptographicException

An error occurred in the hashing or signing operation.