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RSA.VerifyHash Method

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Definition

Namespace:
System.Security.Cryptography
Assembly:
System.Security.Cryptography.Algorithms.dll
Assembly:
System.Security.Cryptography.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Overloads

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

Verifies that a digital signature is valid by determining the hash value in the signature using the specified hash algorithm and padding, and comparing it to the provided hash value.
VerifyHash(ReadOnlySpan<Byte>, ReadOnlySpan<Byte>, HashAlgorithmName, RSASignaturePadding)

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

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

Source:
RSA.cs
Source:
RSA.cs
Source:
RSA.cs

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

public:
 virtual bool VerifyHash(cli::array <System::Byte> ^ hash, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::RSASignaturePadding ^ padding);
public:
 abstract bool VerifyHash(cli::array <System::Byte> ^ hash, cli::array <System::Byte> ^ signature, System::Security::Cryptography::HashAlgorithmName hashAlgorithm, System::Security::Cryptography::RSASignaturePadding ^ padding);
public virtual bool VerifyHash (byte[] hash, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
public abstract bool VerifyHash (byte[] hash, byte[] signature, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.RSASignaturePadding padding);
abstract member VerifyHash : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
override this.VerifyHash : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
abstract member VerifyHash : byte[] * byte[] * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.RSASignaturePadding -> bool
Public Overridable Function VerifyHash (hash As Byte(), signature As Byte(), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean
Public MustOverride Function VerifyHash (hash As Byte(), signature As Byte(), hashAlgorithm As HashAlgorithmName, padding As RSASignaturePadding) As Boolean

Parameters

hash
Byte[]

The hash value of the signed data.

signature
Byte[]

The signature data to be verified.

hashAlgorithm
HashAlgorithmName

The hash algorithm used to create the hash value.

padding
RSASignaturePadding

The padding mode.

Returns

Boolean

true if the signature is valid; otherwise, false.

Exceptions

NotImplementedException

A derived class must override this method.

ArgumentNullException

hash or padding is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

CryptographicException

padding is unknown, or not supported by this implementation.

Applies to

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

Source:
RSA.cs
Source:
RSA.cs
Source:
RSA.cs

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

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

Parameters

hash
ReadOnlySpan<Byte>

The hash value of the signed data.

signature
ReadOnlySpan<Byte>

The signature data to be verified.

hashAlgorithm
HashAlgorithmName

The hash algorithm used to create the hash value.

padding
RSASignaturePadding

The padding mode.

Returns

Boolean

true if the signature is valid; otherwise, false.

Exceptions

ArgumentNullException

hash or padding is null.

ArgumentException

hashAlgorithm.Name is null or Empty.

CryptographicException

padding is unknown, or not supported by this implementation.

Remarks

The default implementation of this method is to copy hash and signature to new arrays and call VerifyHash(Byte[], Byte[], HashAlgorithmName, RSASignaturePadding). Derived types should override this method to avoid the intermediate array creation.

Applies to