Catch runtime exceptions in low-level crypto

[petrdvorak]

In several places in code (for example, when decoding private/public keys from bytes), we currently catch regular exceptions and not the runtime exceptions. These can occur, however, for example in case byte array contains invalid key data.

We should evaluate and catch runtime exceptions and rethrow our own exception type.

However, we are opening the issue based on debugging with our customer. Please consider if this is a good step and feel free to just close the issue in case you find that the current behavior is sufficient

[romanstrobl]

This issue will have to wait for the next release.

[romanstrobl]

This issue will have to wait for the next release.