module main import encoding.hex import encoding.base64 import crypto.ed25519 // adapted from https://asecuritysite.com/signatures/ed25519 fn main() { msg := 'Hello Girl' publ, priv := ed25519.generate_key()! m := msg.bytes() sig := ed25519.sign(priv, m)! println('=== Message ===') println('Msg: ${msg} \nHash: ${m}') println('=== Public key ===') println('Public key (Hex): ${hex.encode(publ)}') println(' Public key (Base64): ${base64.encode(publ)}') println('=== Private key ===') println('Private key: ${priv.seed().hex()}') // priv[0:32] println(' Private key (Base64): ${base64.encode(priv.seed())}') // priv[0:32] println(' Private key (Base64) Full key: ${base64.encode(priv)}') println(' Private key (Full key in Hex): ${hex.encode(priv)}') println('=== signature (R,s) ===') println('signature: R=${sig[0..32].hex()} s=${sig[32..64].hex()}') println(' signature (Base64)=${base64.encode(sig)}') rtn := ed25519.verify(publ, m, sig)! if rtn { println('Signature verified :${rtn}') } else { println('signature does not verify :${!rtn}') } }