Rfc3161TimestampRequest.CreateFromHash Method
Definition
Important
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Overloads
| CreateFromHash(ReadOnlyMemory<Byte>, HashAlgorithmName, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection) |
Create a timestamp request using a pre-computed hash value and the name of the hash algorithm. |
| CreateFromHash(ReadOnlyMemory<Byte>, Oid, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection) |
Create a timestamp request using a pre-computed hash value and the Object Identifier for the hash algorithm. |
CreateFromHash(ReadOnlyMemory<Byte>, HashAlgorithmName, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection)
- Source:
- Rfc3161TimestampRequest.cs
- Source:
- Rfc3161TimestampRequest.cs
Create a timestamp request using a pre-computed hash value and the name of the hash algorithm.
public static System.Security.Cryptography.Pkcs.Rfc3161TimestampRequest CreateFromHash (ReadOnlyMemory<byte> hash, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.Oid? requestedPolicyId = default, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, System.Security.Cryptography.X509Certificates.X509ExtensionCollection? extensions = default);public static System.Security.Cryptography.Pkcs.Rfc3161TimestampRequest CreateFromHash (ReadOnlyMemory<byte> hash, System.Security.Cryptography.HashAlgorithmName hashAlgorithm, System.Security.Cryptography.Oid requestedPolicyId = default, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, System.Security.Cryptography.X509Certificates.X509ExtensionCollection extensions = default);static member CreateFromHash : ReadOnlyMemory<byte> * System.Security.Cryptography.HashAlgorithmName * System.Security.Cryptography.Oid * Nullable<ReadOnlyMemory<byte>> * bool * System.Security.Cryptography.X509Certificates.X509ExtensionCollection -> System.Security.Cryptography.Pkcs.Rfc3161TimestampRequestPublic Shared Function CreateFromHash (hash As ReadOnlyMemory(Of Byte), hashAlgorithm As HashAlgorithmName, Optional requestedPolicyId As Oid = Nothing, Optional nonce As Nullable(Of ReadOnlyMemory(Of Byte)) = Nothing, Optional requestSignerCertificates As Boolean = false, Optional extensions As X509ExtensionCollection = Nothing) As Rfc3161TimestampRequestParameters
- hash
- ReadOnlyMemory<Byte>
The pre-computed hash value to be timestamped.
- hashAlgorithm
- HashAlgorithmName
The hash algorithm used to produce hash.
- requestedPolicyId
- Oid
The Object Identifier (OID) for the timestamp policy that the Timestamp Authority (TSA) should use, or null to express no preference.
- nonce
- Nullable<ReadOnlyMemory<Byte>>
An optional value used to uniquely match a request to a response, or null to not include a nonce in the request.
- requestSignerCertificates
- Boolean
true to indicate the Timestamp Authority (TSA) must include the signing certificate in the issued timestamp token; otherwise, false.
- extensions
- X509ExtensionCollection
An optional collection of extensions to include in the request.
Returns
An Rfc3161TimestampRequest representing the chosen values.
Exceptions
hashAlgorithm is not a known hash algorithm.
Remarks
This method uses the hashAlgorithm parameter to determine the Object Identifier (OID) to include in the timestamp request.
When building a request for a timestamp based on a hash algorithm that this method does not support, use the
CreateFromHash(ReadOnlyMemory<Byte>, Oid, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection) overload.
The nonce value in this method is treated as an unsigned, big-endian integer. This method normalizes the input to a BER INTEGER encoding before assigning the nonce value. The normalized value is returned by the GetNonce() method.
See also
- CreateFromData(ReadOnlySpan<Byte>, HashAlgorithmName, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection)
- CreateFromHash(ReadOnlyMemory<Byte>, Oid, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection)
Applies to
CreateFromHash(ReadOnlyMemory<Byte>, Oid, Oid, Nullable<ReadOnlyMemory<Byte>>, Boolean, X509ExtensionCollection)
- Source:
- Rfc3161TimestampRequest.cs
- Source:
- Rfc3161TimestampRequest.cs
Create a timestamp request using a pre-computed hash value and the Object Identifier for the hash algorithm.
public static System.Security.Cryptography.Pkcs.Rfc3161TimestampRequest CreateFromHash (ReadOnlyMemory<byte> hash, System.Security.Cryptography.Oid hashAlgorithmId, System.Security.Cryptography.Oid? requestedPolicyId = default, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, System.Security.Cryptography.X509Certificates.X509ExtensionCollection? extensions = default);public static System.Security.Cryptography.Pkcs.Rfc3161TimestampRequest CreateFromHash (ReadOnlyMemory<byte> hash, System.Security.Cryptography.Oid hashAlgorithmId, System.Security.Cryptography.Oid requestedPolicyId = default, ReadOnlyMemory<byte>? nonce = default, bool requestSignerCertificates = false, System.Security.Cryptography.X509Certificates.X509ExtensionCollection extensions = default);static member CreateFromHash : ReadOnlyMemory<byte> * System.Security.Cryptography.Oid * System.Security.Cryptography.Oid * Nullable<ReadOnlyMemory<byte>> * bool * System.Security.Cryptography.X509Certificates.X509ExtensionCollection -> System.Security.Cryptography.Pkcs.Rfc3161TimestampRequestPublic Shared Function CreateFromHash (hash As ReadOnlyMemory(Of Byte), hashAlgorithmId As Oid, Optional requestedPolicyId As Oid = Nothing, Optional nonce As Nullable(Of ReadOnlyMemory(Of Byte)) = Nothing, Optional requestSignerCertificates As Boolean = false, Optional extensions As X509ExtensionCollection = Nothing) As Rfc3161TimestampRequestParameters
- hash
- ReadOnlyMemory<Byte>
The pre-computed hash value to be timestamped.
- hashAlgorithmId
- Oid
The Object Identifier (OID) for the hash algorithm that produced hash.
- requestedPolicyId
- Oid
The Object Identifier (OID) for a timestamp policy the Timestamp Authority (TSA) should use, or null to express no preference.
- nonce
- Nullable<ReadOnlyMemory<Byte>>
An optional nonce (number used once) to uniquely identify this request to pair it with the response. The value is interpreted as an unsigned big-endian integer and may be normalized to the encoding format.
- requestSignerCertificates
- Boolean
true to indicate the Timestamp Authority (TSA) must include the signing certificate in the issued timestamp token; otherwise, false.
- extensions
- X509ExtensionCollection
An optional collection of extensions to include in the request.
Returns
An Rfc3161TimestampRequest representing the chosen values.
Exceptions
hashAlgorithmId is null.
hashAlgorithmId.Value is not a valid OID.
Remarks
The nonce value in this method is treated as an unsigned, big-endian integer. This method normalizes the input to a BER INTEGER encoding before assigning the nonce value. The normalized value is returned by the GetNonce() method.
