pub fn from_json_text(
text: &str,
source: impl Into<String>,
) -> Result<CypherKeyring, KeyringError>Expand description
Reads a cypher document out of JSON text, naming source in every refusal.
The options are taken all the way to a FieldCipher and the cipher thrown away again:
parsing only decodes the material, and it is the cipher that judges whether 32 bytes came out
of it and whether keyId names a key that is actually there.