Java SHA1withDSA to PHP, convertible?

Question

Any success in implementing SHA1withDSA signature with PHP? A failure reported here.

PKCS8EncodedKeySpec prvSpec = new PKCS8EncodedKeySpec(prvKeyBytes);
KeyFactory keyFactory = KeyFactory.getInstance("DSA");
PrivateKey prvKey = keyFactory.generatePrivate(prvSpec);
Signature sig = Signature.getInstance("SHA1withDSA");
sig.initSign(prvKey);
sig.update(text);
byte[] result = sig.sign();

What error are you getting? What does your (PHP) code look like? What, exactly, is going wrong? — Charles, Aug 22 '10 at 16:25
There doesn't seem to be an API in PHP, so I have no PHP code at all. — Mohsen, Aug 23 '10 at 01:10

score 1 · Accepted Answer · answered Aug 23 '10 at 05:15

1

You are after the PHP OpenSSL extension.

Specifically, load the private key with openssl_pkey_get_private() and create the signature with openssl_sign(), passing OPENSSL_ALGO_DSS1 as $signature_alg.

answered Aug 23 '10 at 05:15

caf

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I cannot verify at the moment that this works or not. I accept this, as it seems reasonable. Thank you caf! – Mohsen Aug 30 '10 at 19:03

Java SHA1withDSA to PHP, convertible?

1 Answers1