Examples with SM2Signer org.bouncycastle.crypto.signers.SM2Signer used on opensource projects

Example 1 with SM2Signer

use of org.bouncycastle.crypto.signers.SM2Signer in project xipki by xipki.

the class XiECContentVerifierProviderBuilder method createSigner.

protected Signer createSigner(AlgorithmIdentifier sigAlgId) throws OperatorCreationException {
    boolean plainDsa = AlgorithmUtil.isPlainECDSASigAlg(sigAlgId);
    if (plainDsa) {
        AlgorithmIdentifier digAlg = digestAlgorithmFinder.find(sigAlgId);
        Digest dig = digestProvider.get(digAlg);
        return new DSAPlainDigestSigner(new ECDSASigner(), dig);
    }
    boolean sm2 = AlgorithmUtil.isSM2SigAlg(sigAlgId);
    if (sm2) {
        AlgorithmIdentifier digAlg = digestAlgorithmFinder.find(sigAlgId);
        if (GMObjectIdentifiers.sm3.equals(digAlg.getAlgorithm())) {
            return new SM2Signer();
        } else {
            throw new OperatorCreationException("cannot create SM2 signer for hash algorithm " + digAlg.getAlgorithm().getId());
        }
    }
    return super.createSigner(sigAlgId);
}