Module digest

Parsers for digest algorithms and encoded digest values

Parsers for digest strings according to either the OCI image spec or the grammar used by distribution/reference. These grammars differ slightly:

--- distribution/reference
+++ opencontainers/image-spec
 digest               ::= algorithm ":" encoded
 algorithm            ::= algorithm-component (algorithm-separator algorithm-component)*
-component            ::= [A-Za-z][A-Za-z0-9]*
+component            ::= [a-z0-9]+
 separator            ::= [+._-]
-encoded              ::= [0-9a-fA-F]{32,} /* At least 128 bit digest value */
+encoded              ::= [a-zA-Z0-9=_-]+

Modules

algorithm

Digest Algorithm

encoded

Encoded digest value parsing and validation

Structs

Digest

A parsed digest string. Includes the algorithm and encoded digest value, along with information about whether the digest is compliant with the OCI image spec, distribution/reference, or both.

Enums

Compliance

Whether a digest string is compliant with the OCI image spec, distribution/reference, or both.

Standard

The standard or specification that a digest string must comply with. Used in Compliance::compliant_with.