When decrypting message, we have to use verifyTime in the config
otherwise signatures not valid at verifyTime but valid at Now()
will be seen as valid.
Because a GNU dummy key has a `PrivateKey` property, the existing check will
count it as a key to be decrypted. However, a `Decrypt` call on such key will
then yield an error, as it is a dummy key.
This commit addresses this behaviour by summing all valid decrpytable private
keys and returning on their count.
Further, it adapts `Unlock` to ignore any dummy subkey.
Fixes#138
Adds the helper `VerifySignatureExplit()` to get an explicit `SignatureVerificationError`
when verifying a `PlainMessageReader`. This is needed for mobile apps, that
can't cast an error to a signature error.
* barebone streaming functionality
* encryption needs to return a writecloser
* added eof check
* workaround for reader problem with copies
* separate mobile wrappers from main api
* add a clone in the read result to avoid memory corruption
* refactor to reuse code, and fix verification
* have to give the verify key at the start of the decryption
* enfore readAll before signature verification
* streaming api for SessionKey
* add split message stream apis
* name interface params
* fix streaming api so it's supported by go-mobile
* hide internal writeCloser
* fix nil access
* added detached sigs methods
* started unit testing
* unit testing and fixed a bug where key and data packets where inverted
* remove unecessary error wrapping
* figured out closing order and error handling
* add GC calls to mobile writer and reader
* remove debugging values and arrays
* writer with builtin sha256
* unit testing the mobile helpers
* comments and linting
* Typo in error
Co-authored-by: wussler <aron@wussler.it>
* Add GetKeyPacket doc
Co-authored-by: wussler <aron@wussler.it>
* Add rfc reference in comments
Co-authored-by: wussler <aron@wussler.it>
* small improvements
* add compatibility tests with normal methods
* remove unecessary copies in the tests
* update go-crypto to the merged changes commit
* update comments of core internal functions
* remove unused nolint comment
* group message metadata in a struct
* fix comments
* change default values for metadata
* change the mobile reader wrapper to fit the behavior of java
* remove gc calls in the wrappers to avoid performance penalties
* bring back the former Go2MobileReader to be used for ios
* Update crypto/keyring_streaming.go
Co-authored-by: wussler <aron@wussler.it>
* return an error when verifying an embedded sig with no keyring
* Update crypto/sessionkey_streaming.go
Co-authored-by: wussler <aron@wussler.it>
* linter error
* update changelog
* update changelog
Co-authored-by: wussler <aron@wussler.it>
