Computes the history key of one document: base64url SHA-256 over its format, issuer and identifier.
The use is left out on purpose, so a document is spent once whatever it was presented as.
the document format, a FORMATS key
who issued the document
its jti, SAML ID or challenge value
jti
ID
the key
Computes the history key of one document: base64url SHA-256 over its format, issuer and identifier.
The use is left out on purpose, so a document is spent once whatever it was presented as.