BouncyCastle API と bcprov-jdk15on-147 jar を使用して CSR を生成しています。
CertificationRequestInfo certInfo = new CertificationRequestInfo(subject, subKeyInfo, new DERSet(attribute));
org.bouncycastle.operator.ContentSigner sigGen = null;
sigGen = new JcaContentSignerBuilder("SHA1withRSA").setProvider("BC").build(privateKey);
org.bouncycastle.asn1.pkcs.CertificationRequest ctest = new org.bouncycastle.asn1.pkcs.CertificationRequest(certInfo,sigAlgName,new DERBitString(sigGen.getSignature()));
このオブジェクトを呼び出し関数に渡します。
GenerateCSR gcsr = GenerateCSR.getInstance();
System.out.println("Public Key:\n"+gcsr.getPublicKey().toString());
System.out.println("Private Key:\n"+gcsr.getPrivateKey().toString());
org.bouncycastle.asn1.pkcs.CertificationRequest csr = gcsr.getCSR("IMO");
System.out.println("CSR Request Generated!!");
FileWriter fcsr = new FileWriter("C:\\test.txt");
PEMWriter w1 = new PEMWriter(fcsr);
w1.writeObject(csr);
しかし、私は以下の例外を受けています:
Exception in thread "main" org.bouncycastle.util.io.pem.PemGenerationException: unknown object passed - can't encode.
at org.bouncycastle.openssl.MiscPEMGenerator.createPemObject(Unknown Source)"