Exceptions¶
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class
cryptography.exceptions.
UnsupportedAlgorithm
[source]¶ Raised when the requested algorithm, or combination of algorithms is not supported.
-
class
cryptography.exceptions.
AlreadyFinalized
[source]¶ This is raised when a context is used after being finalized.
-
class
cryptography.exceptions.
InvalidSignature
[source]¶ This is raised when signature verification fails. This can occur with HMAC or asymmetric key signature validation.
-
class
cryptography.exceptions.
NotYetFinalized
[source]¶ This is raised when the AEAD tag property is accessed on a context before it is finalized.