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# PDFDigitalSignatureDigestAlgorithm

Namespace: O2S.Components.PDF4NET.DigitalSignatures

Specifies the supported digest algorithms used to compute the digital signature.

    public enum PDFDigitalSignatureDigestAlgorithm

Inheritance Object → ValueType → Enum → PDFDigitalSignatureDigestAlgorithm
Implements

## Fields

Name | Value | Description
--- | --- | ---
Unknown | 0 | No hash function, used as temporary placeholder.
Sha1 | 1 | SHA-1 hash function. This hash function should be used only with timestamp and OCSP requests.
Sha256 | 2 | SHA-256 hash function.
Sha384 | 3 | SHA-384 hash function.
Sha512 | 4 | SHA-512 hash function.