Examples with AlgorithmIdentifier org.bouncycastle.asn1.x509.AlgorithmIdentifier used on opensource projects

Example 46 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method extractDigesetAlgFromSigAlg.

public static AlgorithmIdentifier extractDigesetAlgFromSigAlg(AlgorithmIdentifier sigAlgId) throws NoSuchAlgorithmException {
    ASN1ObjectIdentifier algOid = sigAlgId.getAlgorithm();
    ASN1ObjectIdentifier digestAlgOid;
    if (PKCSObjectIdentifiers.id_RSASSA_PSS.equals(algOid)) {
        ASN1Encodable asn1Encodable = sigAlgId.getParameters();
        RSASSAPSSparams param = RSASSAPSSparams.getInstance(asn1Encodable);
        digestAlgOid = param.getHashAlgorithm().getAlgorithm();
    } else {
        HashAlgo digestAlg = sigAlgOidToDigestMap.get(algOid);
        if (digestAlg == null) {
            throw new NoSuchAlgorithmException("unknown signature algorithm " + algOid.getId());
        }
        digestAlgOid = digestAlg.getOid();
    }
    return new AlgorithmIdentifier(digestAlgOid, DERNull.INSTANCE);
}

Example 47 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method getSigOrMacAlgoCode.

// method getHashOutputSizeInOctets
public static AlgorithmCode getSigOrMacAlgoCode(AlgorithmIdentifier algId) throws NoSuchAlgorithmException {
    ASN1ObjectIdentifier oid = algId.getAlgorithm();
    AlgorithmCode code = algOidToCodeMap.get(oid);
    if (code != null) {
        return code;
    }
    if (PKCSObjectIdentifiers.id_RSASSA_PSS.equals(oid)) {
        RSASSAPSSparams param = RSASSAPSSparams.getInstance(algId.getParameters());
        ASN1ObjectIdentifier digestAlgOid = param.getHashAlgorithm().getAlgorithm();
        code = digestToMgf1AlgCodeMap.get(digestAlgOid);
        if (code == null) {
            throw new NoSuchAlgorithmException("unsupported digest algorithm " + digestAlgOid);
        }
        return code;
    } else {
        throw new NoSuchAlgorithmException("unsupported signature algorithm " + oid.getId());
    }
}

Example 48 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method createPSSRSAParams.

// CHECKSTYLE:SKIP
private static RSASSAPSSparams createPSSRSAParams(HashAlgo digestAlg) throws NoSuchAlgorithmException {
    ParamUtil.requireNonNull("digestAlg", digestAlg);
    int saltSize = digestAlg.getLength();
    AlgorithmIdentifier digAlgId = new AlgorithmIdentifier(digestAlg.getOid(), DERNull.INSTANCE);
    return new RSASSAPSSparams(digAlgId, new AlgorithmIdentifier(PKCSObjectIdentifiers.id_mgf1, digAlgId), new ASN1Integer(saltSize), RSASSAPSSparams.DEFAULT_TRAILER_FIELD);
}

Example 49 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method getSigAlgId.

// method getMacAlgId
public static AlgorithmIdentifier getSigAlgId(String sigAlgName) throws NoSuchAlgorithmException {
    ParamUtil.requireNonNull("sigAlgName", sigAlgName);
    String algoS = sigAlgName.toUpperCase();
    algoS = canonicalizeAlgoText(algoS);
    AlgorithmIdentifier signatureAlgId;
    if (algoS.contains("MGF1")) {
        HashAlgo ha = mgf1SigNameToDigestOidMap.get(algoS);
        if (ha == null) {
            throw new NoSuchAlgorithmException("unknown algorithm " + algoS);
        }
        signatureAlgId = buildRSAPSSAlgId(ha);
    } else {
        ASN1ObjectIdentifier algOid = sigAlgNameToOidMap.get(algoS);
        if (algOid == null) {
            throw new NoSuchAlgorithmException("unknown algorithm " + algoS);
        }
        boolean withNullParam = algoS.contains("RSA");
        signatureAlgId = withNullParam ? new AlgorithmIdentifier(algOid, DERNull.INSTANCE) : new AlgorithmIdentifier(algOid);
    }
    return signatureAlgId;
}

Example 50 with AlgorithmIdentifier

use of org.bouncycastle.asn1.x509.AlgorithmIdentifier in project xipki by xipki.

the class AlgorithmUtil method extractHashAlgoFromMacAlg.

// method getECDSASigAlgId
public static HashAlgo extractHashAlgoFromMacAlg(AlgorithmIdentifier macAlg) {
    ASN1ObjectIdentifier oid = macAlg.getAlgorithm();
    HashAlgo hashAlgo = macAlgOidToDigestMap.get(oid);
    if (hashAlgo == null) {
        throw new IllegalArgumentException("unknown algorithm identifier " + oid.getId());
    }
    return hashAlgo;
}