ziglang
std.crypto: Add segmented API to Ed25519 signing.
std.crypto.sign.Ed25519.sign previously required the message to be passed as a single continuous byte slice. This adds a second function std.crypto.sign.Ed25519.signSegmented which permits the message to be a slice of byte slices. The original sign function simply wraps the msg argument in a single item tuple and passes a slice of that to signSegmented.
If such an interface is added, it should be done consistently, not just in one specific function: also for verification, for blind signatures, and other signature systems.
But a more generic approach would be to have alternative signature/verification functions requiring a Reader or a SeekableStream instead.
That would solve your issue, but also the ability to sign/verify anything that doesn't fit in memory.
By the way, the EdDSA API is going to be completely revamped in order to match the ECDSA one.
