Examples with ASN1GeneralizedTime com.unboundid.asn1.ASN1GeneralizedTime used on opensource projects

Example 41 with ASN1GeneralizedTime

use of com.unboundid.asn1.ASN1GeneralizedTime in project attestation by TokenScript.

the class ChequeDecoder method decode.

@Override
public Cheque decode(byte[] encoding) throws IOException {
    ASN1InputStream input = null;
    try {
        input = new ASN1InputStream(encoding);
        ASN1Sequence asn1 = ASN1Sequence.getInstance(input.readObject());
        ASN1Sequence cheque = ASN1Sequence.getInstance(asn1.getObjectAt(0));
        long amount = (ASN1Integer.getInstance(cheque.getObjectAt(0))).getValue().longValueExact();
        ASN1Sequence validity = ASN1Sequence.getInstance(cheque.getObjectAt(1));
        ASN1GeneralizedTime notValidBeforeEnc = ASN1GeneralizedTime.getInstance(validity.getObjectAt(0));
        ASN1GeneralizedTime notValidAfterEnc = ASN1GeneralizedTime.getInstance(validity.getObjectAt(1));
        long notValidBefore, notValidAfter;
        try {
            notValidBefore = notValidBeforeEnc.getDate().getTime();
            notValidAfter = notValidAfterEnc.getDate().getTime();
        } catch (ParseException e) {
            throw ExceptionUtil.throwException(logger, new IOException("Validity is not encoded properly"));
        }
        byte[] commitment = (ASN1OctetString.getInstance(cheque.getObjectAt(2))).getOctets();
        AsymmetricKeyParameter publicKey = SignatureUtility.restoreDefaultKey(DERBitString.getInstance(asn1.getObjectAt(1)).getEncoded());
        // Verify signature
        byte[] signature = DERBitString.getInstance(asn1.getObjectAt(2)).getBytes();
        return new Cheque(commitment, amount, notValidBefore, notValidAfter, signature, publicKey);
    } finally {
        input.close();
    }
}