ecdsa: add trial recovery functionality #580
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This functionality can be used to compute a `RecoveryId` from a verifying key, message, and signature, without having this information computed during signing time. It uses a brute force method and is thus much slower than computing it at signing time.
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This functionality can be used to compute a
RecoveryIdfrom a verifying key, message, and signature, without having this information computed during signing time.It uses a brute force method and is thus much slower than computing it at signing time.