The SignerInfo.Certificate property retrieves the signing certificate associated with the signer information.

The SignerInfo.CounterSignerInfos property retrieves the set of counter signers associated with the signer information.

The SignerInfo.DigestAlgorithm property retrieves the System.Security.Cryptography.Oid object that represents the hash algorithm used in the computation of the signatures.

The SignerInfo.SignedAttributes property retrieves the System.Security.Cryptography.CryptographicAttributeObjectCollection collection of signed attributes that is associated with the signer information. Signed attributes are signed along with the rest of the message content.

The SignerInfo.SignerIdentifier property retrieves the certificate identifier of the signer associated with the signer information.

The SignerInfo.UnsignedAttributes property retrieves the System.Security.Cryptography.CryptographicAttributeObjectCollection collection of unsigned attributes that is associated with the System.Security.Cryptography.Pkcs.SignerInfo content. Unsigned attributes can be modified without invalidating the signature.

The SignerInfo.Version property retrieves the signer information version.