chickadee » elliptic-curves » ecc-sign

Given elliptic curve parameters and a cryptographically strong random-integer generator for huge numbers with analoguous behaviour as the standard procedure (random n), a signature procedure is generated that computes a signature from the private key d and the given message.

The message is a number and the signature is a pair of two numbers.

For practical applications, you should convert some message digest into a number with the same bit length as the base point order of the elliptic curve and pass it as the message argument.