1--TEST-- 2Check for libsodium ed25519 signatures 3--SKIPIF-- 4<?php if (!extension_loaded("sodium")) print "skip"; ?> 5--FILE-- 6<?php 7$keypair = sodium_crypto_sign_keypair(); 8var_dump(strlen($keypair) === SODIUM_CRYPTO_SIGN_KEYPAIRBYTES); 9$sk = sodium_crypto_sign_secretkey($keypair); 10var_dump(strlen($sk) === SODIUM_CRYPTO_SIGN_SECRETKEYBYTES); 11$pk = sodium_crypto_sign_publickey($keypair); 12var_dump(strlen($pk) === SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES); 13var_dump($pk !== $sk); 14$keypair2 = sodium_crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk); 15var_dump($keypair === $keypair2); 16 17$alice_kp = sodium_crypto_sign_keypair(); 18$alice_secretkey = sodium_crypto_sign_secretkey($alice_kp); 19$alice_publickey = sodium_crypto_sign_publickey($alice_kp); 20 21$msg = "Here is the message, to be signed using Alice's secret key, and " . 22 "to be verified using Alice's public key"; 23 24$msg_signed = sodium_crypto_sign($msg, $alice_secretkey); 25var_dump(strlen($msg_signed) - strlen($msg) === SODIUM_CRYPTO_SIGN_BYTES); 26 27$msg_orig = sodium_crypto_sign_open($msg_signed, $alice_publickey); 28var_dump($msg_orig === $msg); 29 30$seed = str_repeat('x', SODIUM_CRYPTO_SIGN_SEEDBYTES); 31$alice_kp = sodium_crypto_sign_seed_keypair($seed); 32 33$alice_secretkey = sodium_crypto_sign_secretkey($alice_kp); 34$alice_publickey = sodium_crypto_sign_publickey($alice_kp); 35 36$msg = "Here is another message, to be signed using Alice's secret key, and " . 37 "to be verified using Alice's public key, which will be always the same " . 38 "since they are derived from a fixed seed"; 39 40$msg_signed = sodium_crypto_sign($msg, $alice_secretkey); 41var_dump(strlen($msg_signed) - strlen($msg) === SODIUM_CRYPTO_SIGN_BYTES); 42 43$msg_orig = sodium_crypto_sign_open($msg_signed, $alice_publickey); 44var_dump($msg_orig === $msg); 45 46$signature = sodium_crypto_sign_detached($msg, $alice_secretkey); 47var_dump(strlen($signature) === SODIUM_CRYPTO_SIGN_BYTES); 48var_dump(sodium_crypto_sign_verify_detached($signature, 49 $msg, $alice_publickey)); 50var_dump(sodium_crypto_sign_verify_detached($signature, 51 $msg . "\0", $alice_publickey)); 52 53$calc_pubkey = sodium_crypto_sign_publickey_from_secretkey($alice_secretkey); 54var_dump(sodium_memcmp($calc_pubkey, $alice_publickey) === 0); 55 56$ed25519key = sodium_hex2bin("55b62f664bf1c359f58a6b91b89556f97284273510573055b9237d17f5a20564607f0626f49e63c2c8f814ed6d955bf8b005b33fd5fd56eaca93073d8eb99165"); 57$curve25519key = sodium_crypto_sign_ed25519_sk_to_curve25519($ed25519key); 58var_dump($curve25519key === sodium_hex2bin("381b2be5e3d38820deb1243fb58b4be654da30dd3ccde492cb88f937eb489363")); 59 60try { 61 sodium_crypto_sign($msg, substr($alice_secretkey, 1)); 62} catch (SodiumException $ex) { 63 var_dump(true); 64} 65?> 66--EXPECT-- 67bool(true) 68bool(true) 69bool(true) 70bool(true) 71bool(true) 72bool(true) 73bool(true) 74bool(true) 75bool(true) 76bool(true) 77bool(true) 78bool(false) 79bool(true) 80bool(true) 81bool(true) 82
