Module digest 

Which digest an ASN.1 AlgorithmIdentifier names, resolved once for OCSP, CMS and every other ASN.1 consumer.

The identifier is matched exactly. Parameters are read under the encoding of the document they came from. SHA-1 and SHA-2 accept absent or primitive NULL parameters, including BER NULL lengths; SHA3 requires absence. Other parameters of a known identifier are malformed. An identifier this table does not know is unsupported. Execution then goes through the provider’s Digest implementation.

Enums

Algorithm

A digest algorithm named by a standard ASN.1 identifier.

Traits

AsnDigest

A Digest provider’s identities for standard ASN.1 digest algorithms.

Functions

algorithm

Reads which standard digest identifier names.

resolve

Resolves identifier to digest’s own identity: algorithm, then the provider’s AsnDigest::identity.

supported

The provider’s identity for an algorithm a schema imposes without writing an identifier, such as SHA-1 for an OCSP ResponderID byKey.