metropolite

Back Back Up Advanced Editor

--TEST--
secp256k1_ecdsa_sign and secp256k1_ecdsa_verify are consistent
--SKIPIF--
<?php
if (!extension_loaded("secp256k1")) print "skip extension not loaded";
?>
--FILE--
<?php

// fixture came from our signatures.yml
$sigIn = hex2bin("30440220132382ca59240c2e14ee7ff61d90fc63276325f4cbe8169fc53ade4a407c2fc802204d86fbe3bde6975dd5a91fdc95ad6544dcdf0dab206f02224ce7e2b151bd82ab");
$msg32 = \pack("H*", "9e5755ec2f328cc8635a55415d0e9a09c2b6f2c9b0343c945fbbfe08247a4cbe");
$priv = \pack("H*", "31a84594060e103f5a63eb742bd46cf5f5900d8406e2726dedfc61c7cf43ebad");

$ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);

$sig = null;
$result = secp256k1_ecdsa_sign($ctx, $sig, $msg32, $priv);
echo $result . PHP_EOL;
echo get_resource_type($sig) . PHP_EOL;

$sigOut = "";
$result = secp256k1_ecdsa_signature_serialize_der($ctx, $sigOut, $sig);
echo $result . PHP_EOL;
echo unpack("H*", $sigOut)[1] . PHP_EOL;

$pub = null;
$result = \secp256k1_ec_pubkey_create($ctx, $pub, $priv);
echo $result . PHP_EOL;

$result = \secp256k1_ecdsa_verify($ctx, $sig, $msg32, $pub);
echo $result . PHP_EOL;

?>
--EXPECT--
1
secp256k1_ecdsa_signature
1
30440220132382ca59240c2e14ee7ff61d90fc63276325f4cbe8169fc53ade4a407c2fc802204d86fbe3bde6975dd5a91fdc95ad6544dcdf0dab206f02224ce7e2b151bd82ab
1
1