Class CMS_SignerInfo

scapy/layers/x509.py:1379–1413

class CMS_SignerInfo(ASN1_Packet):
    ASN1_codec = ASN1_Codecs.BER
    ASN1_root = ASN1F_SEQUENCE(
        CMSVersion("version", 1),
        ASN1F_CHOICE(
            "sid",
            CMS_IssuerAndSerialNumber(),
            ASN1F_PACKET("sid", CMS_IssuerAndSerialNumber(),
                         CMS_IssuerAndSerialNumber),
            ASN1F_PACKET("sid", CMS_SubjectKeyIdentifier(),
                         CMS_SubjectKeyIdentifier,
                         implicit_tag=0x80),
        ),
        ASN1F_PACKET("digestAlgorithm", X509_AlgorithmIdentifier(),
                     X509_AlgorithmIdentifier),
        ASN1F_optional(
            ASN1F_SET_OF(
                "signedAttrs",
                None,
                X509_Attribute,
                implicit_tag=0xA0,
            )
        ),
        ASN1F_PACKET("signatureAlgorithm", X509_AlgorithmIdentifier(),
                     X509_AlgorithmIdentifier),
        ASN1F_STRING("signature", ASN1_UTF8_STRING("")),
        ASN1F_optional(
            ASN1F_SET_OF(
                "unsignedAttrs",
                None,
                X509_Attribute,
                implicit_tag=0xA1,
            )
        )
    )


# RFC3852 sect 5.4