pkcs7

type AlgorithmIdentifier struct {
	ID asn1.ObjectIdentifier
}

type IssuerAndSerialNumber struct {
	Issuer       asn1.RawValue
	SerialNumber *big.Int
}

type SignedData struct {
	Version          version
	DigestAlgorithms digestAlgorithmIdentifiers `asn1:"set"`
	ContentInfo      contentInfo                //data oid: 1.2.840.113549.1.7.1
	Certificate      asn1.RawValue              `asn1:"optional,explicit,tag:0"`
	SignerInfos      signerInfos                `asn1:"set"`
}

type SignedDataObject struct {
	ID         asn1.ObjectIdentifier //signedData oid: 1.2.840.113549.1.7.2
	SignedData SignedData            `asn1:"explicit,tag:0"`
}