Add AssymetricAlgorithm Span-based APIs #22925
Description
Separated out of https://github.com/dotnet/corefx/issues/21281 for tracking purposes.
- Implement/expose/test RSA methods
- Implement/expose/test DSA methods
- Implement/expose/test ECDsa methods
namespace System.Security.Cryptography
{
public abstract class RSA : AsymmetricAlgorithm
{
public virtual bool TryDecrypt(ReadOnlySpan<byte> source, Span<byte> destination, RSAEncryptionPadding padding, out int bytesWritten);
public virtual bool TryEncrypt(ReadOnlySpan<byte> source, Span<byte> destination, RSAEncryptionPadding padding, out int bytesWritten);
protected virtual bool TryHashData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten);
public virtual bool TrySignData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding, out int bytesWritten);
public virtual bool TrySignHash(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding, out int bytesWritten);
public virtual bool VerifyData(ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding);
public virtual bool VerifyHash(ReadOnlySpan<byte> hash, ReadOnlySpan<byte> signature, HashAlgorithmName hashAlgorithm, RSASignaturePadding padding);
…
}
public abstract class DSA : AsymmetricAlgorithm
{
public virtual bool TryCreateSignature(ReadOnlySpan<byte> source, Span<byte> destination, out int bytesWritten);
protected virtual bool TryHashData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten);
public virtual bool TrySignData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten);
public virtual bool VerifyData(ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, HashAlgorithmName hashAlgorithm);
public virtual bool VerifySignature(ReadOnlySpan<byte> rgbHash, ReadOnlySpan<byte> rgbSignature);
…
}
public abstract class ECDsa : AsymmetricAlgorithm
{
protected virtual bool TryHashData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten);
public virtual bool TrySignData(ReadOnlySpan<byte> source, Span<byte> destination, HashAlgorithmName hashAlgorithm, out int bytesWritten);
public virtual bool TrySignHash(ReadOnlySpan<byte> source, Span<byte> destination, out int bytesWritten);
public virtual bool VerifyData(ReadOnlySpan<byte> data, ReadOnlySpan<byte> signature, HashAlgorithmName hashAlgorithm);
public virtual bool VerifyHash(ReadOnlySpan<byte> hash, ReadOnlySpan<byte> signature);
…
}
}This includes not only adding the virtuals but also providing meaningful and efficient implementations on the internal concrete implementations returned from the various Create methods.