Verifying a Signature
See also Generating a Public/Private Key Pair and
Listing All Available Signature Algorithms.
// Verifies the signature for the given buffer of bytes using the public key.
public static boolean verifySignature(PublicKey key, byte[] buffer, byte[] signature) {
try {
Signature sig = Signature.getInstance(key.getAlgorithm());
sig.initVerify(key);
sig.update(buffer, 0, buffer.length);
return sig.verify(signature);
} catch (SignatureException e) {
} catch (InvalidKeyException e) {
} catch (NoSuchAlgorithmException e) {
}
return false;
}
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