System.Security.Cryptography.Pkcs.Rfc3161TimestampRequest

public sealed class Rfc3161TimestampRequest

Represents a time-stamping request from IETF RFC 3161.

public bool HasExtensions { get; }

Indicates whether or not the request has extensions.

Gets the Object Identifier (OID) for the hash algorithm associated with the request.

Gets the policy ID for the request, or null when no policy ID was requested.

Gets a value indicating whether or not the request indicated that the timestamp authority certificate is required to be in the response.

public int Version { get; }

Gets the data format version number for this request.

public static Rfc3161TimestampRequest CreateFromData(ReadOnlySpan<byte> data, HashAlgorithmName hashAlgorithm, Oid requestedPolicyId = null, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, X509ExtensionCollection extensions = null)

Creates a timestamp request by hashing the provided data with a specified algorithm.

public static Rfc3161TimestampRequest CreateFromHash(ReadOnlyMemory<byte> hash, HashAlgorithmName hashAlgorithm, Oid requestedPolicyId = null, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, X509ExtensionCollection extensions = null)

Create a timestamp request using a pre-computed hash value and the name of the hash algorithm.

public static Rfc3161TimestampRequest CreateFromHash(ReadOnlyMemory<byte> hash, Oid hashAlgorithmId, Oid requestedPolicyId = null, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, X509ExtensionCollection extensions = null)

Create a timestamp request using a pre-computed hash value and the Object Identifier for the hash algorithm.

public static Rfc3161TimestampRequest CreateFromSignerInfo(SignerInfo signerInfo, HashAlgorithmName hashAlgorithm, Oid requestedPolicyId = null, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, X509ExtensionCollection extensions = null)

Creates a timestamp request by hashing the signature of the provided signer with a specified algorithm.

public static bool TryDecode(ReadOnlyMemory<byte> encodedBytes, out Rfc3161TimestampRequest request, out int bytesConsumed)

Attemps to interpret the contents of encodedBytes as a DER-encoded Timestamp Request.

public byte[] Encode()

Encodes the timestamp request and returns it as a byte array.

Gets a collection with a copy of the extensions present on this request.

Gets the data hash for this timestamp request.

Gets the nonce for this timestamp request.

public Rfc3161TimestampToken ProcessResponse(ReadOnlyMemory<byte> responseBytes, out int bytesConsumed)

Combines an encoded timestamp response with this request to produce a Rfc3161TimestampToken.

public bool TryEncode(Span<byte> destination, out int bytesWritten)

Attempts to encode the instance as an IETF RFC 3161 TimeStampReq, writing the bytes into the provided buffer.