SignedData
RFC 5652 CMSの署名型式
https://tex2e.github.io/rfc-translater/html/rfc5652.html#5--Signed-data-Content-Type
RFC 4853→ 5652
RFC 3852 → 5652
code:SignedData Type
id-signedData OBJECT IDENTIFIER ::= { iso(1) member-body(2)
us(840) rsadsi(113549) pkcs(1) pkcs7(7) 2 }
code:SignedData
SignedData ::= SEQUENCE {
version CMSVersion,
digestAlgorithms DigestAlgorithmIdentifiers,
encapContentInfo EncapsulatedContentInfo,
certificates 0 IMPLICIT CertificateSet OPTIONAL,
crls 1 IMPLICIT RevocationInfoChoices OPTIONAL,
signerInfos SignerInfos }
DigestAlgorithmIdentifiers ::= SET OF DigestAlgorithmIdentifier
SignerInfos ::= SET OF SignerInfo